提交 · bf8bddbf1971d40549f33bc6f70623cf53bbfa2f · openeuler / raspberrypi-kernel

28 4月, 2016 3 次提交

perf record: Disable buildid cache options by default in switch output mode · 0c1d46a8

由 Wang Nan 提交于 4月 20, 2016

The cost of buildid cache processing is high: reading all events in
output perf.data, opening each elf file to read buildids then copying
them into ~/.debug directory. In switch output mode, these heavy works
block perf from receiving perf events for too long.

Enable no-buildid and no-buildid-cache by default if --switch-output is
provided. Still allow user use --no-no-buildid to explicitly enable
buildid in this case.
Signed-off-by: NWang Nan <wangnan0@huawei.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Zefan Li <lizefan@huawei.com>
Cc: pi3orama@163.com
Link: http://lkml.kernel.org/r/1461178794-40467-6-git-send-email-wangnan0@huawei.comSigned-off-by: NHe Kuang <hekuang@huawei.com>
[ Updated man page ]
Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

0c1d46a8

perf record: Force enable --timestamp-filename when --switch-output is provided · eca857ab

由 Wang Nan 提交于 4月 20, 2016

Without this patch, the last output doesn't have timestamp appended if
--timestamp-filename is not explicitly provided. For example:

  # perf record -a --switch-output &
  [1] 11224
  # kill -s SIGUSR2 11224
  [ perf record: dump data: Woken up 1 times ]
  # [ perf record: Dump perf.data.2015122622372823 ]

  # fg
  perf record -a --switch-output
  ^C[ perf record: Woken up 1 times to write data ]
  [ perf record: Captured and wrote 0.027 MB perf.data (540 samples) ]

  # ls -l
  total 836
  -rw------- 1 root root  33256 Dec 26 22:37 perf.data   <---- *Odd*
  -rw------- 1 root root 817156 Dec 26 22:37 perf.data.2015122622372823
Signed-off-by: NWang Nan <wangnan0@huawei.com>
Tested-by: NArnaldo Carvalho de Melo <acme@redhat.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Zefan Li <lizefan@huawei.com>
Cc: pi3orama@163.com
Link: http://lkml.kernel.org/r/1461178794-40467-5-git-send-email-wangnan0@huawei.comSigned-off-by: NHe Kuang <hekuang@huawei.com>
[ Updated man page, that also got an entry for --timestamp-filename ]
Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

eca857ab

perf record: Split output into multiple files via '--switch-output' · 3c1cb7e3

由 Wang Nan 提交于 4月 20, 2016

Allow 'perf record' to split its output into multiple files.

For example:

  # ~/perf record -a --timestamp-filename --switch-output &
  [1] 10763
  # kill -s SIGUSR2 10763
  [ perf record: dump data: Woken up 1 times ]
  # [ perf record: Dump perf.data.2015122622314468 ]

  # kill -s SIGUSR2 10763
  [ perf record: dump data: Woken up 1 times ]
  # [ perf record: Dump perf.data.2015122622314762 ]

  # kill -s SIGUSR2 10763
  [ perf record: dump data: Woken up 1 times ]
  #[ perf record: Dump perf.data.2015122622315171 ]

  # fg
  perf record -a --timestamp-filename --switch-output
  ^C[ perf record: Woken up 1 times to write data ]
  [ perf record: Dump perf.data.2015122622315513 ]
  [ perf record: Captured and wrote 0.014 MB perf.data.<timestamp> (296 samples) ]

  # ls -l
  total 920
  -rw------- 1 root root 797692 Dec 26 22:31 perf.data.2015122622314468
  -rw------- 1 root root  59960 Dec 26 22:31 perf.data.2015122622314762
  -rw------- 1 root root  59912 Dec 26 22:31 perf.data.2015122622315171
  -rw------- 1 root root  19220 Dec 26 22:31 perf.data.2015122622315513
Signed-off-by: NWang Nan <wangnan0@huawei.com>
Tested-by: NArnaldo Carvalho de Melo <acme@redhat.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Zefan Li <lizefan@huawei.com>
Cc: pi3orama@163.com
Link: http://lkml.kernel.org/r/1461178794-40467-4-git-send-email-wangnan0@huawei.comSigned-off-by: NHe Kuang <hekuang@huawei.com>
[ Added man page entry, used the re-synthesize patch in this series as a fixup ]
Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

3c1cb7e3

27 4月, 2016 1 次提交

perf tools: Set the maximum allowed stack from /proc/sys/kernel/perf_event_max_stack · 4cb93446

由 Arnaldo Carvalho de Melo 提交于 4月 27, 2016

There is an upper limit to what tooling considers a valid callchain,
and it was tied to the hardcoded value in the kernel,
PERF_MAX_STACK_DEPTH (127), now that this can be tuned via a sysctl,
make it read it and use that as the upper limit, falling back to
PERF_MAX_STACK_DEPTH for kernels where this sysctl isn't present.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Brendan Gregg <brendan.d.gregg@gmail.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Milian Wolff <milian.wolff@kdab.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-yjqsd30nnkogvj5oyx9ghir9@git.kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

4cb93446

16 4月, 2016 3 次提交

perf trace: Bump --mmap-pages when --call-graph is used by the root user · f3e459d1

由 Arnaldo Carvalho de Melo 提交于 4月 15, 2016

To reduce the chances we'll overflow the mmap buffer, manual fine tuning
trumps this.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Milian Wolff <milian.wolff@kdab.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-wxygbxmp1v9mng1ea28wet02@git.kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

f3e459d1

perf trace: Make --(min,max}-stack imply "--call-graph dwarf" · 05614993

由 Arnaldo Carvalho de Melo 提交于 4月 15, 2016

If one uses:

  # perf trace --min-stack 16

Then it implicitly means that callgraphs should be enabled, and the best
option in terms of widespread availability is "dwarf".

Further work needed to choose a better alternative, LBR, in capable
systems.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Milian Wolff <milian.wolff@kdab.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-xtjmnpkyk42npekxz3kynzmx@git.kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

05614993

perf trace: Introduce --min-stack filter · 5cf9c84e

由 Arnaldo Carvalho de Melo 提交于 4月 15, 2016

Counterpart to --max-stack, to help focusing on deeply nested calls. Can
be combined with --duration, etc.

E.g.:

  System wide syscall tracing looking for call stacks longer than 66:

  # trace --mmap-pages 32768 --filter-pid 2711 --call-graph dwarf,16384 --min-stack 66

  Or more compactly:

  # trace -m 32768 --filt 2711 --call dwarf,16384 --min-st 66
   363.027 ( 0.002 ms): gnome-shell/2287 poll(ufds: 0x7ffc5ea24230, nfds: 1, timeout_msecs: 4294967295         ) = 1
                                       [0xf6fdd] (/usr/lib64/libc-2.22.so)
                                       _xcb_conn_wait+0x92 (/usr/lib64/libxcb.so.1.1.0)
                                       _xcb_out_send+0x4d (/usr/lib64/libxcb.so.1.1.0)
                                       xcb_writev+0x45 (/usr/lib64/libxcb.so.1.1.0)
                                       _XSend+0x19e (/usr/lib64/libX11.so.6.3.0)
                                       _XReply+0x82 (/usr/lib64/libX11.so.6.3.0)
                                       XSync+0x4d (/usr/lib64/libX11.so.6.3.0)
                                       dri3_bind_tex_image+0x42 (/usr/lib64/libGL.so.1.2.0)
                                       _cogl_winsys_texture_pixmap_x11_update+0x117 (/usr/lib64/libcogl.so.20.4.1)
                                       _cogl_texture_pixmap_x11_update+0x67 (/usr/lib64/libcogl.so.20.4.1)
                                       _cogl_texture_pixmap_x11_pre_paint+0x13 (/usr/lib64/libcogl.so.20.4.1)
                                       _cogl_pipeline_layer_pre_paint+0x5e (/usr/lib64/libcogl.so.20.4.1)
                                       _cogl_rectangles_validate_layer_cb+0x1b (/usr/lib64/libcogl.so.20.4.1)
                                       cogl_pipeline_foreach_layer+0xbe (/usr/lib64/libcogl.so.20.4.1)
                                       _cogl_framebuffer_draw_multitextured_rectangles+0x77 (/usr/lib64/libcogl.so.20.4.1)
                                       cogl_framebuffer_draw_multitextured_rectangle+0x51 (/usr/lib64/libcogl.so.20.4.1)
                                       paint_clipped_rectangle+0xb6 (/usr/lib64/libmutter.so.0.0.0)
                                       meta_shaped_texture_paint+0x3e3 (/usr/lib64/libmutter.so.0.0.0)
                                       _g_closure_invoke_va+0xb2 (/usr/lib64/libgobject-2.0.so.0.4600.2)
                                       g_signal_emit_valist+0xc0d (/usr/lib64/libgobject-2.0.so.0.4600.2)
                                       g_signal_emit+0x8f (/usr/lib64/libgobject-2.0.so.0.4600.2)
                                       clutter_actor_continue_paint+0x2bb (/usr/lib64/libclutter-1.0.so.0.2400.2)
                                       clutter_actor_paint.part.41+0x47b (/usr/lib64/libclutter-1.0.so.0.2400.2)
                                       clutter_actor_real_paint+0x20 (/usr/lib64/libclutter-1.0.so.0.2400.2)
                                       _g_closure_invoke_va+0xb2 (/usr/lib64/libgobject-2.0.so.0.4600.2)
                                       g_signal_emit_valist+0xc0d (/usr/lib64/libgobject-2.0.so.0.4600.2)
                                       g_signal_emit+0x8f (/usr/lib64/libgobject-2.0.so.0.4600.2)
                                       clutter_actor_continue_paint+0x2bb (/usr/lib64/libclutter-1.0.so.0.2400.2)
                                       clutter_actor_paint.part.41+0x47b (/usr/lib64/libclutter-1.0.so.0.2400.2)
                                       clutter_actor_real_paint+0x20 (/usr/lib64/libclutter-1.0.so.0.2400.2)
                                       meta_window_actor_paint+0x14b (/usr/lib64/libmutter.so.0.0.0)
                                       _g_closure_invoke_va+0xb2 (/usr/lib64/libgobject-2.0.so.0.4600.2)
                                       g_signal_emit_valist+0xc0d (/usr/lib64/libgobject-2.0.so.0.4600.2)
                                       g_signal_emit+0x8f (/usr/lib64/libgobject-2.0.so.0.4600.2)
                                       clutter_actor_continue_paint+0x2bb (/usr/lib64/libclutter-1.0.so.0.2400.2)
                                       clutter_actor_paint.part.41+0x47b (/usr/lib64/libclutter-1.0.so.0.2400.2)
                                       clutter_actor_real_paint+0x20 (/usr/lib64/libclutter-1.0.so.0.2400.2)
                                       meta_window_group_paint+0x19f (/usr/lib64/libmutter.so.0.0.0)
                                       _g_closure_invoke_va+0xb2 (/usr/lib64/libgobject-2.0.so.0.4600.2)
                                       g_signal_emit_valist+0xc0d (/usr/lib64/libgobject-2.0.so.0.4600.2)
                                       g_signal_emit+0x8f (/usr/lib64/libgobject-2.0.so.0.4600.2)
                                       clutter_actor_continue_paint+0x2bb (/usr/lib64/libclutter-1.0.so.0.2400.2)
                                       clutter_actor_paint.part.41+0x47b (/usr/lib64/libclutter-1.0.so.0.2400.2)
                                       [0x3d970] (/usr/lib64/gnome-shell/libgnome-shell.so)
                                       _g_closure_invoke_va+0xb2 (/usr/lib64/libgobject-2.0.so.0.4600.2)
                                       g_signal_emit_valist+0xc0d (/usr/lib64/libgobject-2.0.so.0.4600.2)
                                       g_signal_emit+0x8f (/usr/lib64/libgobject-2.0.so.0.4600.2)
                                       clutter_actor_continue_paint+0x2bb (/usr/lib64/libclutter-1.0.so.0.2400.2)
                                       clutter_actor_paint.part.41+0x47b (/usr/lib64/libclutter-1.0.so.0.2400.2)
                                       clutter_stage_paint+0x3a (/usr/lib64/libclutter-1.0.so.0.2400.2)
                                       meta_stage_paint+0x45 (/usr/lib64/libmutter.so.0.0.0)
                                       _g_closure_invoke_va+0x164 (/usr/lib64/libgobject-2.0.so.0.4600.2)
                                       g_signal_emit_valist+0xc0d (/usr/lib64/libgobject-2.0.so.0.4600.2)
                                       g_signal_emit+0x8f (/usr/lib64/libgobject-2.0.so.0.4600.2)
                                       clutter_actor_continue_paint+0x2bb (/usr/lib64/libclutter-1.0.so.0.2400.2)
                                       clutter_actor_paint.part.41+0x47b (/usr/lib64/libclutter-1.0.so.0.2400.2)
                                       _clutter_stage_do_paint+0x17b (/usr/lib64/libclutter-1.0.so.0.2400.2)
                                       clutter_stage_cogl_redraw+0x496 (/usr/lib64/libclutter-1.0.so.0.2400.2)
                                       _clutter_stage_do_update+0x117 (/usr/lib64/libclutter-1.0.so.0.2400.2)
                                       clutter_clock_dispatch+0x169 (/usr/lib64/libclutter-1.0.so.0.2400.2)
                                       g_main_context_dispatch+0x15a (/usr/lib64/libglib-2.0.so.0.4600.2)
                                       g_main_context_iterate.isra.29+0x1e0 (/usr/lib64/libglib-2.0.so.0.4600.2)
                                       g_main_loop_run+0xc2 (/usr/lib64/libglib-2.0.so.0.4600.2)
                                       meta_run+0x2c (/usr/lib64/libmutter.so.0.0.0)
                                       main+0x3f7 (/usr/bin/gnome-shell)
                                       __libc_start_main+0xf0 (/usr/lib64/libc-2.22.so)
                                       [0x2909] (/usr/bin/gnome-shell)
   363.038 ( 0.006 ms): gnome-shell/2287 writev(fd: 5<socket:[32540]>, vec: 0x7ffc5ea243a0, vlen: 3            ) = 4
                                       __GI___writev+0x2d (/usr/lib64/libc-2.22.so)
                                       _xcb_conn_wait+0x359 (/usr/lib64/libxcb.so.1.1.0)
                                       _xcb_out_send+0x4d (/usr/lib64/libxcb.so.1.1.0)
                                       xcb_writev+0x45 (/usr/lib64/libxcb.so.1.1.0)
                                       _XSend+0x19e (/usr/lib64/libX11.so.6.3.0)
                                       _XReply+0x82 (/usr/lib64/libX11.so.6.3.0)
                                       XSync+0x4d (/usr/lib64/libX11.so.6.3.0)
                                       dri3_bind_tex_image+0x42 (/usr/lib64/libGL.so.1.2.0)
                                       _cogl_winsys_texture_pixmap_x11_update+0x117 (/usr/lib64/libcogl.so.20.4.1)
                                       _cogl_texture_pixmap_x11_update+0x67 (/usr/lib64/libcogl.so.20.4.1)
                                       _cogl_texture_pixmap_x11_pre_paint+0x13 (/usr/lib64/libcogl.so.20.4.1)
                                       _cogl_pipeline_layer_pre_paint+0x5e (/usr/lib64/libcogl.so.20.4.1)
                                       _cogl_rectangles_validate_layer_cb+0x1b (/usr/lib64/libcogl.so.20.4.1)
                                       cogl_pipeline_foreach_layer+0xbe (/usr/lib64/libcogl.so.20.4.1)
                                       _cogl_framebuffer_draw_multitextured_rectangles+0x77 (/usr/lib64/libcogl.so.20.4.1)
                                       cogl_framebuffer_draw_multitextured_rectangle+0x51 (/usr/lib64/libcogl.so.20.4.1)
                                       paint_clipped_rectangle+0xb6 (/usr/lib64/libmutter.so.0.0.0)
                                       meta_shaped_texture_paint+0x3e3 (/usr/lib64/libmutter.so.0.0.0)
                                       _g_closure_invoke_va+0xb2 (/usr/lib64/libgobject-2.0.so.0.4600.2)
                                       g_signal_emit_valist+0xc0d (/usr/lib64/libgobject-2.0.so.0.4600.2)
                                       g_signal_emit+0x8f (/usr/lib64/libgobject-2.0.so.0.4600.2)
                                       clutter_actor_continue_paint+0x2bb (/usr/lib64/libclutter-1.0.so.0.2400.2)
                                       clutter_actor_paint.part.41+0x47b (/usr/lib64/libclutter-1.0.so.0.2400.2)
                                       clutter_actor_real_paint+0x20 (/usr/lib64/libclutter-1.0.so.0.2400.2)
                                       _g_closure_invoke_va+0xb2 (/usr/lib64/libgobject-2.0.so.0.4600.2)
                                       g_signal_emit_valist+0xc0d (/usr/lib64/libgobject-2.0.so.0.4600.2)
                                       g_signal_emit+0x8f (/usr/lib64/libgobject-2.0.so.0.4600.2)
                                       clutter_actor_continue_paint+0x2bb (/usr/lib64/libclutter-1.0.so.0.2400.2)
                                       clutter_actor_paint.part.41+0x47b (/usr/lib64/libclutter-1.0.so.0.2400.2)
                                       clutter_actor_real_paint+0x20 (/usr/lib64/libclutter-1.0.so.0.2400.2)
                                       meta_window_actor_paint+0x14b (/usr/lib64/libmutter.so.0.0.0)
                                       _g_closure_invoke_va+0xb2 (/usr/lib64/libgobject-2.0.so.0.4600.2)
                                       g_signal_emit_valist+0xc0d (/usr/lib64/libgobject-2.0.so.0.4600.2)
                                       g_signal_emit+0x8f (/usr/lib64/libgobject-2.0.so.0.4600.2)
                                       clutter_actor_continue_paint+0x2bb (/usr/lib64/libclutter-1.0.so.0.2400.2)
                                       clutter_actor_paint.part.41+0x47b (/usr/lib64/libclutter-1.0.so.0.2400.2)
                                       clutter_actor_real_paint+0x20 (/usr/lib64/libclutter-1.0.so.0.2400.2)
                                       meta_window_group_paint+0x19f (/usr/lib64/libmutter.so.0.0.0)
                                       _g_closure_invoke_va+0xb2 (/usr/lib64/libgobject-2.0.so.0.4600.2)
                                       g_signal_emit_valist+0xc0d (/usr/lib64/libgobject-2.0.so.0.4600.2)
                                       g_signal_emit+0x8f (/usr/lib64/libgobject-2.0.so.0.4600.2)
                                       clutter_actor_continue_paint+0x2bb (/usr/lib64/libclutter-1.0.so.0.2400.2)
                                       clutter_actor_paint.part.41+0x47b (/usr/lib64/libclutter-1.0.so.0.2400.2)
                                       [0x3d970] (/usr/lib64/gnome-shell/libgnome-shell.so)
                                       _g_closure_invoke_va+0xb2 (/usr/lib64/libgobject-2.0.so.0.4600.2)
                                       g_signal_emit_valist+0xc0d (/usr/lib64/libgobject-2.0.so.0.4600.2)
                                       g_signal_emit+0x8f (/usr/lib64/libgobject-2.0.so.0.4600.2)
                                       clutter_actor_continue_paint+0x2bb (/usr/lib64/libclutter-1.0.so.0.2400.2)
                                       clutter_actor_paint.part.41+0x47b (/usr/lib64/libclutter-1.0.so.0.2400.2)
                                       clutter_stage_paint+0x3a (/usr/lib64/libclutter-1.0.so.0.2400.2)
                                       meta_stage_paint+0x45 (/usr/lib64/libmutter.so.0.0.0)
                                       _g_closure_invoke_va+0x164 (/usr/lib64/libgobject-2.0.so.0.4600.2)
                                       g_signal_emit_valist+0xc0d (/usr/lib64/libgobject-2.0.so.0.4600.2)
                                       g_signal_emit+0x8f (/usr/lib64/libgobject-2.0.so.0.4600.2)
                                       clutter_actor_continue_paint+0x2bb (/usr/lib64/libclutter-1.0.so.0.2400.2)
                                       clutter_actor_paint.part.41+0x47b (/usr/lib64/libclutter-1.0.so.0.2400.2)
                                       _clutter_stage_do_paint+0x17b (/usr/lib64/libclutter-1.0.so.0.2400.2)
                                       clutter_stage_cogl_redraw+0x496 (/usr/lib64/libclutter-1.0.so.0.2400.2)
                                       _clutter_stage_do_update+0x117 (/usr/lib64/libclutter-1.0.so.0.2400.2)
                                       clutter_clock_dispatch+0x169 (/usr/lib64/libclutter-1.0.so.0.2400.2)
                                       g_main_context_dispatch+0x15a (/usr/lib64/libglib-2.0.so.0.4600.2)
                                       g_main_context_iterate.isra.29+0x1e0 (/usr/lib64/libglib-2.0.so.0.4600.2)
                                       g_main_loop_run+0xc2 (/usr/lib64/libglib-2.0.so.0.4600.2)
                                       meta_run+0x2c (/usr/lib64/libmutter.so.0.0.0)
                                       main+0x3f7 (/usr/bin/gnome-shell)
                                       __libc_start_main+0xf0 (/usr/lib64/libc-2.22.so)
                                       [0x2909] (/usr/bin/gnome-shell)
   363.086 ( 0.042 ms): gnome-shell/2287 poll(ufds: 0x7ffc5ea24250, nfds: 1, timeout_msecs: 4294967295         ) = 1
                                       [0xf6fdd] (/usr/lib64/libc-2.22.so)
                                       _xcb_conn_wait+0x92 (/usr/lib64/libxcb.so.1.1.0)
                                       wait_for_reply+0xb7 (/usr/lib64/libxcb.so.1.1.0)
                                       xcb_wait_for_reply+0x61 (/usr/lib64/libxcb.so.1.1.0)
                                       _XReply+0x127 (/usr/lib64/libX11.so.6.3.0)
                                       XSync+0x4d (/usr/lib64/libX11.so.6.3.0)
                                       dri3_bind_tex_image+0x42 (/usr/lib64/libGL.so.1.2.0)
                                       _cogl_winsys_texture_pixmap_x11_update+0x117 (/usr/lib64/libcogl.so.20.4.1)
                                       _cogl_texture_pixmap_x11_update+0x67 (/usr/lib64/libcogl.so.20.4.1)
                                       _cogl_texture_pixmap_x11_pre_paint+0x13 (/usr/lib64/libcogl.so.20.4.1)
                                       _cogl_pipeline_layer_pre_paint+0x5e (/usr/lib64/libcogl.so.20.4.1)
                                       _cogl_rectangles_validate_layer_cb+0x1b (/usr/lib64/libcogl.so.20.4.1)
                                       cogl_pipeline_foreach_layer+0xbe (/usr/lib64/libcogl.so.20.4.1)
                                       _cogl_framebuffer_draw_multitextured_rectangles+0x77 (/usr/lib64/libcogl.so.20.4.1)
                                       cogl_framebuffer_draw_multitextured_rectangle+0x51 (/usr/lib64/libcogl.so.20.4.1)
                                       paint_clipped_rectangle+0xb6 (/usr/lib64/libmutter.so.0.0.0)
                                       meta_shaped_texture_paint+0x3e3 (/usr/lib64/libmutter.so.0.0.0)
                                       _g_closure_invoke_va+0xb2 (/usr/lib64/libgobject-2.0.so.0.4600.2)
                                       g_signal_emit_valist+0xc0d (/usr/lib64/libgobject-2.0.so.0.4600.2)
                                       g_signal_emit+0x8f (/usr/lib64/libgobject-2.0.so.0.4600.2)
                                       clutter_actor_continue_paint+0x2bb (/usr/lib64/libclutter-1.0.so.0.2400.2)
                                       clutter_actor_paint.part.41+0x47b (/usr/lib64/libclutter-1.0.so.0.2400.2)
                                       clutter_actor_real_paint+0x20 (/usr/lib64/libclutter-1.0.so.0.2400.2)
                                       _g_closure_invoke_va+0xb2 (/usr/lib64/libgobject-2.0.so.0.4600.2)
                                       g_signal_emit_valist+0xc0d (/usr/lib64/libgobject-2.0.so.0.4600.2)
                                       g_signal_emit+0x8f (/usr/lib64/libgobject-2.0.so.0.4600.2)
                                       clutter_actor_continue_paint+0x2bb (/usr/lib64/libclutter-1.0.so.0.2400.2)
                                       clutter_actor_paint.part.41+0x47b (/usr/lib64/libclutter-1.0.so.0.2400.2)
                                       clutter_actor_real_paint+0x20 (/usr/lib64/libclutter-1.0.so.0.2400.2)
                                       meta_window_actor_paint+0x14b (/usr/lib64/libmutter.so.0.0.0)
                                       _g_closure_invoke_va+0xb2 (/usr/lib64/libgobject-2.0.so.0.4600.2)
                                       g_signal_emit_valist+0xc0d (/usr/lib64/libgobject-2.0.so.0.4600.2)
                                       g_signal_emit+0x8f (/usr/lib64/libgobject-2.0.so.0.4600.2)
                                       clutter_actor_continue_paint+0x2bb (/usr/lib64/libclutter-1.0.so.0.2400.2)
                                       clutter_actor_paint.part.41+0x47b (/usr/lib64/libclutter-1.0.so.0.2400.2)
                                       clutter_actor_real_paint+0x20 (/usr/lib64/libclutter-1.0.so.0.2400.2)
                                       meta_window_group_paint+0x19f (/usr/lib64/libmutter.so.0.0.0)
                                       _g_closure_invoke_va+0xb2 (/usr/lib64/libgobject-2.0.so.0.4600.2)
                                       g_signal_emit_valist+0xc0d (/usr/lib64/libgobject-2.0.so.0.4600.2)
                                       g_signal_emit+0x8f (/usr/lib64/libgobject-2.0.so.0.4600.2)
                                       clutter_actor_continue_paint+0x2bb (/usr/lib64/libclutter-1.0.so.0.2400.2)
                                       clutter_actor_paint.part.41+0x47b (/usr/lib64/libclutter-1.0.so.0.2400.2)
                                       [0x3d970] (/usr/lib64/gnome-shell/libgnome-shell.so)
                                       _g_closure_invoke_va+0xb2 (/usr/lib64/libgobject-2.0.so.0.4600.2)
                                       g_signal_emit_valist+0xc0d (/usr/lib64/libgobject-2.0.so.0.4600.2)
                                       g_signal_emit+0x8f (/usr/lib64/libgobject-2.0.so.0.4600.2)
                                       clutter_actor_continue_paint+0x2bb (/usr/lib64/libclutter-1.0.so.0.2400.2)
                                       clutter_actor_paint.part.41+0x47b (/usr/lib64/libclutter-1.0.so.0.2400.2)
                                       clutter_stage_paint+0x3a (/usr/lib64/libclutter-1.0.so.0.2400.2)
                                       meta_stage_paint+0x45 (/usr/lib64/libmutter.so.0.0.0)
                                       _g_closure_invoke_va+0x164 (/usr/lib64/libgobject-2.0.so.0.4600.2)
                                       g_signal_emit_valist+0xc0d (/usr/lib64/libgobject-2.0.so.0.4600.2)
                                       g_signal_emit+0x8f (/usr/lib64/libgobject-2.0.so.0.4600.2)
                                       clutter_actor_continue_paint+0x2bb (/usr/lib64/libclutter-1.0.so.0.2400.2)
                                       clutter_actor_paint.part.41+0x47b (/usr/lib64/libclutter-1.0.so.0.2400.2)
                                       _clutter_stage_do_paint+0x17b (/usr/lib64/libclutter-1.0.so.0.2400.2)
                                       clutter_stage_cogl_redraw+0x496 (/usr/lib64/libclutter-1.0.so.0.2400.2)
                                       _clutter_stage_do_update+0x117 (/usr/lib64/libclutter-1.0.so.0.2400.2)
                                       clutter_clock_dispatch+0x169 (/usr/lib64/libclutter-1.0.so.0.2400.2)
                                       g_main_context_dispatch+0x15a (/usr/lib64/libglib-2.0.so.0.4600.2)
                                       g_main_context_iterate.isra.29+0x1e0 (/usr/lib64/libglib-2.0.so.0.4600.2)
                                       g_main_loop_run+0xc2 (/usr/lib64/libglib-2.0.so.0.4600.2)
                                       meta_run+0x2c (/usr/lib64/libmutter.so.0.0.0)
                                       main+0x3f7 (/usr/bin/gnome-shell)
                                       __libc_start_main+0xf0 (/usr/lib64/libc-2.22.so)
                                       [0x2909] (/usr/bin/gnome-shell)

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Milian Wolff <milian.wolff@kdab.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-jncuxju9fibq2rl6olhqwjw6@git.kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

5cf9c84e

15 4月, 2016 2 次提交

perf trace: Add --max-stack knob · c6d4a494

由 Arnaldo Carvalho de Melo 提交于 4月 14, 2016

Similar to the one in the other tools (report, script, top).

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Milian Wolff <milian.wolff@kdab.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-lh7kk5a5t3erwxw31ah0cgar@git.kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

c6d4a494

perf script: Add --max-stack knob · 6125cc8d

由 Arnaldo Carvalho de Melo 提交于 4月 14, 2016

Works just like with 'perf report'. In some cases we may want to have
more than 127 entries, the default maximum.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-mqkz2p5ok2978gztb0vsnocc@git.kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

6125cc8d

13 4月, 2016 4 次提交

perf sched map: Display only given cpus · 73643bb6

由 Jiri Olsa 提交于 4月 12, 2016

Introducing --cpus option that will display only given cpus. Could be
used together with color-cpus option.

  $ perf sched map  --cpus 0,1
        *A0   309999.786924 secs A0 => rcu_sched:7
        *.    309999.786930 secs
    *B0  .    309999.786931 secs B0 => rcuos/2:25
     B0 *A0   309999.786947 secs
Signed-off-by: NJiri Olsa <jolsa@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1460467771-26532-9-git-send-email-jolsa@kernel.org
[ Added entry to man page ]
Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

73643bb6

perf sched map: Color given cpus · cf294f24

由 Jiri Olsa 提交于 4月 12, 2016

Adding --color-cpus option to display selected cpus with background
color (red by default).  It helps on navigating through the perf sched
map output.
Signed-off-by: NJiri Olsa <jolsa@kernel.org>
Tested-by: NArnaldo Carvalho de Melo <acme@redhat.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1460467771-26532-8-git-send-email-jolsa@kernel.org
[ Added entry to man page ]
Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

cf294f24

perf sched map: Color given pids · a151a37a

由 Jiri Olsa 提交于 4月 12, 2016

Adding --color-pids option to display selected pids in color (blue by
default). It helps on navigating through the 'perf sched map' output.
Signed-off-by: NJiri Olsa <jolsa@kernel.org>
Tested-by: NArnaldo Carvalho de Melo <acme@redhat.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1460467771-26532-7-git-send-email-jolsa@kernel.org
[ Added entry to man page ]
Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

a151a37a

perf sched: Add compact display option · 99623c62

由 Jiri Olsa 提交于 4月 12, 2016

Add compact map display that does not output the whole cpu matrix, only
cpus that got event.

  $ perf sched map --compact
    *A0   1082427.094098 secs A0 => perf:19404 (CPU 2)
     A0 *.    1082427.094127 secs .  => swapper:0 (CPU 1)
     A0  .  *B0   1082427.094174 secs B0 => rcuos/2:25 (CPU 3)
     A0  .  *.    1082427.094177 secs
    *C0  .   .    1082427.094187 secs C0 => migration/2:21
     C0 *A0  .    1082427.094193 secs
    *.   A0  .    1082427.094195 secs
    *D0  A0  .    1082427.094402 secs D0 => rngd:968
    *.   A0  .    1082427.094406 secs
     .  *E0  .    1082427.095221 secs E0 => kworker/1:1:5333
     .   E0 *F0   1082427.095227 secs F0 => xterm:3342

It helps to display sane output for small thread loads on big cpu
servers.
Signed-off-by: NJiri Olsa <jolsa@kernel.org>
Tested-by: NArnaldo Carvalho de Melo <acme@redhat.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1460467771-26532-4-git-send-email-jolsa@kernel.org
[ Add entry in 'perf sched' man page ]
Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

99623c62

12 4月, 2016 2 次提交

perf trace: Exclude the kernel part of the callchain leading to a syscall · 44621819

由 Arnaldo Carvalho de Melo 提交于 4月 11, 2016

The kernel parts are not that useful:

  # trace -m 512 -e nanosleep --call dwarf  usleep 1
     0.065 ( 0.065 ms): usleep/18732 nanosleep(rqtp: 0x7ffc4ee4e200) = 0
                                       syscall_slow_exit_work ([kernel.kallsyms])
                                       do_syscall_64 ([kernel.kallsyms])
                                       return_from_SYSCALL_64 ([kernel.kallsyms])
                                       __nanosleep (/usr/lib64/libc-2.22.so)
                                       usleep (/usr/lib64/libc-2.22.so)
                                       main (/usr/bin/usleep)
                                       __libc_start_main (/usr/lib64/libc-2.22.so)
                                       _start (/usr/bin/usleep)
  #

So lets just use perf_event_attr.exclude_callchain_kernel to avoid
collecting it in the ring buffer:

  # trace -m 512 -e nanosleep --call dwarf  usleep 1
     0.063 ( 0.063 ms): usleep/19212 nanosleep(rqtp: 0x7ffc3df10fb0) = 0
                                       __nanosleep (/usr/lib64/libc-2.22.so)
                                       usleep (/usr/lib64/libc-2.22.so)
                                       main (/usr/bin/usleep)
                                       __libc_start_main (/usr/lib64/libc-2.22.so)
                                       _start (/usr/bin/usleep)
  #

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Milian Wolff <milian.wolff@kdab.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-qctu3gqhpim0dfbcp9d86c91@git.kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

44621819

perf trace: Add support for printing call chains on sys_exit events. · 566a0885

由 Milian Wolff 提交于 4月 08, 2016

Now, one can print the call chain for every encountered sys_exit event,
e.g.:

    $ perf trace -e nanosleep --call-graph dwarf path/to/ex_sleep
    1005.757 (1000.090 ms): ex_sleep/13167 nanosleep(...) = 0
                                             syscall_slow_exit_work ([kernel.kallsyms])
                                             syscall_return_slowpath ([kernel.kallsyms])
                                             int_ret_from_sys_call ([kernel.kallsyms])
                                             __nanosleep (/usr/lib/libc-2.23.so)
                                             [unknown] (/usr/lib/libQt5Core.so.5.6.0)
                                             QThread::sleep (/usr/lib/libQt5Core.so.5.6.0)
                                             main (path/to/ex_sleep)
                                             __libc_start_main (/usr/lib/libc-2.23.so)
                                             _start (path/to/ex_sleep)

Note that it is advised to increase the number of mmap pages to prevent
event losses when using this new feature. Often, adding `-m 10M` to the
`perf trace` invocation is enough.

This feature is also available in strace when built with libunwind via
`strace -k`. Performance wise, this solution is much better:

    $ time find path/to/linux &> /dev/null

    real    0m0.051s
    user    0m0.013s
    sys     0m0.037s

    $ time perf trace -m 800M --call-graph dwarf find path/to/linux &> /dev/null

    real    0m2.624s
    user    0m1.203s
    sys     0m1.333s

    $ time strace -k find path/to/linux  &> /dev/null

    real    0m35.398s
    user    0m10.403s
    sys     0m23.173s

Note that it is currently not possible to configure the print output.
Adding such a feature, similar to what is available in `perf script` via
its `--fields` knob can be added later on.
Signed-off-by: NMilian Wolff <milian.wolff@kdab.com>
Tested-by: NArnaldo Carvalho de Melo <acme@redhat.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
LPU-Reference: 1460115255-17648-1-git-send-email-milian.wolff@kdab.com
[ Split from a larger patch, do not print the IP, left align,
  remove dup call symbol__init(), added man page entry ]
Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

566a0885

06 4月, 2016 1 次提交

perf list: Document event specifications better · 85f8f966

由 Andi Kleen 提交于 4月 04, 2016

Document some features for specifying events in the perf list manpage:

- Event groups
- Leader sampling
- How to specify raw PMU events in the new syntax
- Global versus per process PMUs.
- Access restrictions
- Fix Intel SDM URL

v2: Lots of new content. address review feedback.
Signed-off-by: NAndi Kleen <ak@linux.intel.com>
Acked-by: NJiri Olsa <jolsa@kernel.org>
Link: http://lkml.kernel.org/r/1459810686-15913-1-git-send-email-andi@firstfloor.org
[ Add quotes to some keywords, such as "any" ]
Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

85f8f966

30 3月, 2016 3 次提交

perf tools: Add support for skipping itrace instructions · d1706b39

由 Andi Kleen 提交于 3月 28, 2016

When using 'perf script' to look at PT traces it is often useful to
ignore the initialization code at the beginning.

On larger traces which may have many millions of instructions in
initialization code doing that in a pipeline can be very slow, with perf
script spending a lot of CPU time calling printf and writing data.

This patch adds an extension to the --itrace argument that skips 'n'
events (instructions, branches or transactions) at the beginning. This
is much more efficient.

v2:
Add support for BTS (Adrian Hunter)
Document in itrace.txt
Fix branch check
Check transactions and instructions too

Committer note:

To test intel_pt one needs to make sure VT-x isn't active, i.e.
stopping KVM guests on the test machine, as described by Andi Kleen
at http://lkml.kernel.org/r/20160301234953.GD23621@tassilo.jf.intel.comSigned-off-by: NAndi Kleen <ak@linux.intel.com>
Tested-by: NArnaldo Carvalho de Melo <acme@redhat.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1459187142-20035-1-git-send-email-andi@firstfloor.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

d1706b39

perf tools: Make -f/--force option documentation consistent across tools · e0be62cc

由 Jiri Olsa 提交于 3月 24, 2016

Signed-off-by: NJiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1458823940-24583-6-git-send-email-jolsa@kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

e0be62cc

perf mem: Add -U/-K (--all-user/--all-kernel) options · ad16511b

由 Jiri Olsa 提交于 3月 24, 2016

Add -U/-K (--all-user/--all-kernel) options to use the perf record
--all-user/--all-kernel options.
Signed-off-by: NJiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1458823940-24583-3-git-send-email-jolsa@kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

ad16511b

22 3月, 2016 1 次提交

perf list: Fix documentation of :ppp · 4ca0d819

由 Andi Kleen 提交于 3月 21, 2016

Correctly document what is implemented for :ppp on Intel CPUs in recent
kernels.
Signed-off-by: NAndi Kleen <ak@linux.intel.com>
Acked-by: NJiri Olsa <jolsa@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1458575793-12091-2-git-send-email-andi@firstfloor.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

4ca0d819

19 3月, 2016 1 次提交

tools: Move utilities.mak from perf to tools/scripts/ · ca70c24f

由 Arnaldo Carvalho de Melo 提交于 3月 18, 2016

As it is used by several other tools, better move it outside tools/perf.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-34s9kue3xq9w5mijdmfrfx8s@git.kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

ca70c24f

11 3月, 2016 3 次提交

perf stat: Add --metric-only support for -A · 206cab65

由 Andi Kleen 提交于 3月 03, 2016

Add metric only support for -A too. This requires a new print function
that prints the metrics in the right order.

v2: Fix manpage
v3: Simplify nrcpus computation
Signed-off-by: NAndi Kleen <ak@linux.intel.com>
Acked-by: NJiri Olsa <jolsa@kernel.org>
Link: http://lkml.kernel.org/r/1457049458-28956-7-git-send-email-andi@firstfloor.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

206cab65

perf stat: Implement --metric-only mode · 54b50916

由 Andi Kleen 提交于 3月 03, 2016

Add a new mode to only print metrics. Sometimes we don't care about the
raw values, just want the computed metrics. This allows more compact
printing, so with -I each sample is only a single line. This also
allows easier plotting and processing with other tools.

The main target is with using --topdown, but it also works with -T and
standard perf stat. A few metrics are not supported.

To avoiding having to hardcode all the metrics in the code it uses a two
pass approach: first compute dummy metrics and only print the headers in
the print_metric callback. Then use the callback to print the actual
values.

There are some additional changes in the stat printout code to handle
all metrics being on a single line.

One issue is that the column code doesn't know in advance what events
are not supported by the CPU, and it would be hard to find out as this
could change based on dynamic conditions. That causes empty columns in
some cases.

The output can be fairly wide, often you may need more than 80 columns.

Example:

% perf stat -a -I 1000 --metric-only
1.001452803 frontend cycles idle insn per cycle stalled cycles per insn branch-misses of all branches
1.001452803 158.91% 0.66 2.39 2.92%
2.002192321 180.63% 0.76 2.08 2.96%
3.003088282 150.59% 0.62 2.57 2.84%
4.004369835 196.20% 0.98 1.62 3.79%
5.005227314 231.98% 0.84 1.90 4.71%

v2: Lots of updates.
v3: Use slightly narrower columns
v4: Add comment
Signed-off-by: NAndi Kleen <ak@linux.intel.com>
Acked-by: NJiri Olsa <jolsa@kernel.org>
Link: http://lkml.kernel.org/r/1457049458-28956-6-git-send-email-andi@firstfloor.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

54b50916

perf stat: Document CSV format in manpage · 6b45f7b2

由 Andi Kleen 提交于 3月 03, 2016

With all the recently added fields in the perf stat CSV output we should
finally document them in the man page. Do this here.

v2: Fix fields in documentation (Jiri)
v3: fix order of fields again (Jiri)
v4: Change order again.
v5: Document more fields (Jiri)
v6: Move time stamp first
v7: More fixes (Jiri)
Signed-off-by: NAndi Kleen <ak@linux.intel.com>
Acked-by: NJiri Olsa <jolsa@kernel.org>
Link: http://lkml.kernel.org/r/1457049458-28956-5-git-send-email-andi@firstfloor.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

6b45f7b2

08 3月, 2016 1 次提交

perf stat: Document --detailed option · f594bae0

由 Borislav Petkov 提交于 3月 07, 2016

I'm surprised this remained undocumented since at least 2011. And it is
actually a very useful switch, as Steve and I came to realize recently.

Add the text from

  2cba3ffb ("perf stat: Add -d -d and -d -d -d options to show more CPU events")

which added the incrementing aspect to -d.
Tested-by: NArnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: NBorislav Petkov <bp@suse.de>
Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Davidlohr Bueso <dbueso@suse.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mel Gorman <mgorman@suse.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Fixes: 2cba3ffb ("perf stat: Add -d -d and -d -d -d options to show more CPU events")
Link: http://lkml.kernel.org/r/1457347294-32546-1-git-send-email-bp@alien8.deSigned-off-by: NIngo Molnar <mingo@kernel.org>

f594bae0

25 2月, 2016 2 次提交

perf top: Add --hierarchy option · c92fcfde

由 Namhyung Kim 提交于 2月 25, 2016

Support hierarchy output for perf-top using --hierarchy option.
Signed-off-by: NNamhyung Kim <namhyung@kernel.org>
Acked-by: NPekka Enberg <penberg@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/1456326830-30456-19-git-send-email-namhyung@kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

c92fcfde

perf report: Add --hierarchy option · 4251446d

由 Namhyung Kim 提交于 2月 25, 2016

The --hierarchy option is to show output in hierarchy mode.  It extends
folding/unfolding in the TUI and GTK browsers to support sort items as
well as callchains.  Users can toggle the items to see the performance
result at wanted level.

  $ perf report --hierarchy --tui
   Overhead       Command / Shared Object / Symbol
  --------------------------------------------------
  +  32.96%       gnome-shell
  -  15.11%       swapper
     -  14.97%       [kernel.vmlinux]
           6.82%        [k] intel_idle
           0.66%        [k] menu_select
           0.43%        [k] __hrtimer_start_range_ns
  ...
Signed-off-by: NNamhyung Kim <namhyung@kernel.org>
Acked-by: NPekka Enberg <penberg@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/1456326830-30456-17-git-send-email-namhyung@kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

4251446d

18 2月, 2016 1 次提交

perf record: Add --all-user/--all-kernel options · 85723885

由 Jiri Olsa 提交于 2月 15, 2016

Allow user to easily switch all events to user or kernel space with simple
--all-user or --all-kernel options.

This will be handy within perf mem/c2c wrappers to switch easily monitoring
modes.

Committer note:

Testing it:

  # perf record --all-kernel --all-user -a sleep 2
   Error: option `all-user' cannot be used with all-kernel
   Usage: perf record [<options>] [<command>]
      or: perf record [<options>] -- <command> [<options>]

        --all-user        Configure all used events to run in user space.
        --all-kernel      Configure all used events to run in kernel space.
  # perf record --all-user --all-kernel -a sleep 2
   Error: option `all-kernel' cannot be used with all-user
   Usage: perf record [<options>] [<command>]
      or: perf record [<options>] -- <command> [<options>]

        --all-kernel      Configure all used events to run in kernel space.
        --all-user        Configure all used events to run in user space.
  # perf record --all-user -a sleep 1
  [ perf record: Woken up 1 times to write data ]
  [ perf record: Captured and wrote 1.416 MB perf.data (162 samples) ]
  # perf report | grep '\[k\]'
  # perf record --all-kernel -a sleep 1
  [ perf record: Woken up 1 times to write data ]
  [ perf record: Captured and wrote 1.423 MB perf.data (296 samples) ]
  # perf report | grep '\[\.\]'
  #
Signed-off-by: NJiri Olsa <jolsa@kernel.org>
Tested-by: NArnaldo Carvalho de Melo <acme@redhat.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1455525293-8671-2-git-send-email-jolsa@kernel.org
[ Made those options to be mutually exclusive ]
Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

85723885

12 2月, 2016 1 次提交

perf config: Add '--system' and '--user' options to select which config file is used · c7ac2417

由 Taeung Song 提交于 2月 11, 2016

The '--system' option means $(sysconfdir)/perfconfig and '--user' means
$HOME/.perfconfig. If none is used, both system and user config file are
read.  E.g.:

    # perf config [<file-option>] [options]

    With an specific config file:

    # perf config --user | --system

    or both user and system config file:

    # perf config
Signed-off-by: NTaeung Song <treeze.taeung@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/r/1455126685-32367-2-git-send-email-treeze.taeung@gmail.comSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

c7ac2417

05 2月, 2016 1 次提交

perf inject: Add jitdump mmap injection support · 9b07e27f

由 Stephane Eranian 提交于 11月 30, 2015

This patch adds a --jit/-j option to perf inject.

This options injects MMAP records into the perf.data file to cover the
jitted code mmaps. It also emits ELF images for each function in the
jidump file.  Those images are created where the jitdump file is.  The
MMAP records point to that location as well.

Typical flow:

  $ perf record -k mono -- java -agentpath:libpjvmti.so java_class
  $ perf inject --jit -i perf.data -o perf.data.jitted
  $ perf report -i perf.data.jitted

Note that jitdump.h support is not limited to Java, it works with any
jitted environment modified to emit the jitdump file format, include
those where code can be jitted multiple times and moved around.

The jitdump.h format is adapted from the Oprofile project.

The genelf.c (ELF binary generation) depends on MD5 hash encoding for
the buildid. To enable this, libssl-dev must be installed. If not, then
genelf.c defaults to using urandom to generate the buildid, which is not
ideal.  The Makefile auto-detects the presence on libssl-dev.

This version mmaps the jitdump file to create a marker MMAP record in
the perf.data file. The marker is used to detect jitdump and cause perf
inject to inject the jitted mmaps and generate ELF images for jitted
functions.

In V8, the following fixes and changes were made among other things:

  -  the jidump header format include a new flags field to be used
     to carry information about the configuration of the runtime agent.
     Contributed by: Adrian Hunter <adrian.hunter@intel.com>

  - Fix mmap pgoff: MMAP event pgoff must be the offset within the ELF file
    at which the code resides.
    Contributed by: Adrian Hunter <adrian.hunter@intel.com>

  - Fix ELF virtual addresses: perf tools expect the ELF virtual addresses of dynamic
    objects to match the file offset.
    Contributed by: Adrian Hunter <adrian.hunter@intel.com>

  - JIT MMAP injection does not obey finished_round semantics. JIT MMAP injection injects all
    MMAP events in one go, so it does not obey finished_round semantics, so drop the
    finished_round events from the output perf.data file.
    Contributed by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: NStephane Eranian <eranian@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Carl Love <cel@us.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: John McCutchan <johnmccutchan@google.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Sonny Rao <sonnyrao@chromium.org>
Cc: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
Link: http://lkml.kernel.org/r/1448874143-7269-3-git-send-email-eranian@google.com
[ Moved inject.build_ids ordering bits to a separate patch, fixed the NO_LIBELF=1 build ]
Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

9b07e27f

04 2月, 2016 8 次提交

perf config: Document 'record.build-id' variable in man page · a9edec3c

由 Taeung Song 提交于 2月 04, 2016

Explain 'record.build-id' variable.
Signed-off-by: NTaeung Song <treeze.taeung@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/r/1454577913-16401-9-git-send-email-treeze.taeung@gmail.comSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

a9edec3c

perf config: Document 'kmem.default' variable in man page · 57f0dafe

由 Taeung Song 提交于 2月 04, 2016

Explain 'kmem.default' variable.
Signed-off-by: NTaeung Song <treeze.taeung@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/r/1454577913-16401-8-git-send-email-treeze.taeung@gmail.comSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

57f0dafe

perf config: Document 'pager.<subcommand>' variables in man page · ab2e08e8

由 Taeung Song 提交于 2月 04, 2016

Explain 'pager.<subcommand>' variables.
Signed-off-by: NTaeung Song <treeze.taeung@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/r/1454577913-16401-7-git-send-email-treeze.taeung@gmail.comSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

ab2e08e8

perf config: Document 'man.viewer' variable in man page · 08b75b40

由 Taeung Song 提交于 2月 04, 2016

Explain 'man.viewer' variable and how to add new man viewer tools.
Signed-off-by: NTaeung Song <treeze.taeung@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/r/1454577913-16401-6-git-send-email-treeze.taeung@gmail.comSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

08b75b40

perf config: Document 'top.children' variable in man page · 0b04c840

由 Taeung Song 提交于 2月 04, 2016

Explain 'top.children' variable.
Signed-off-by: NTaeung Song <treeze.taeung@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/r/1454577913-16401-5-git-send-email-treeze.taeung@gmail.comSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

0b04c840

perf config: Document variables for 'report' section in man page · 806cb95b

由 Taeung Song 提交于 2月 04, 2016

Explain 'report' section's variables:

  'percent-limit', 'queue-size' and 'children'.
Signed-off-by: NTaeung Song <treeze.taeung@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/r/1454577913-16401-4-git-send-email-treeze.taeung@gmail.com
[ Fix some grammar issues, add some more info ]
Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

806cb95b

perf config: Document variables for 'call-graph' section in man page · 56c94dc5

由 Taeung Song 提交于 2月 04, 2016

Explain 'call-graph' section and its variables:

  'record-mode', 'dump-size', 'print-type', 'order', 'sort-key',
  'threshold' and 'print-limit'.
Signed-off-by: NTaeung Song <treeze.taeung@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/r/1454577913-16401-3-git-send-email-treeze.taeung@gmail.comSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

56c94dc5

perf config: Document 'ui.show-headers' variable in man page · 67f43c00

由 Taeung Song 提交于 2月 04, 2016

This option controls display of column headers (like 'Overhead' and
'Symbol') in 'report' and 'top'. If this option is false, they are
hidden.  This option is only applied to TUI.
Signed-off-by: NTaeung Song <treeze.taeung@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/r/1454577913-16401-2-git-send-email-treeze.taeung@gmail.comSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

67f43c00

03 2月, 2016 2 次提交

perf report: Update documention of --percent-limit option · 1ba2fc6d

由 Namhyung Kim 提交于 2月 03, 2016

The --percent-limit option was changed to be applied to callchains as
well as to hist entries recently, but it missed to update the doc.
Reported-by: NArnaldo Carvalho de Melo <acme@kernel.org>
Signed-off-by: NNamhyung Kim <namhyung@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/1454508683-5735-2-git-send-email-namhyung@kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

1ba2fc6d

perf report: Update documentation of --sort option · c6f5f6b6

由 Namhyung Kim 提交于 2月 03, 2016

The description of the memory sort key (used by --mem-mode) was
misplaced.  Move it under the --sort option so that it can be referenced
properly.
Signed-off-by: NNamhyung Kim <namhyung@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/1454508683-5735-1-git-send-email-namhyung@kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

c6f5f6b6