1. 06 9月, 2012 1 次提交
  2. 12 8月, 2012 1 次提交
    • J
      perf tools: Support for DWARF CFI unwinding on post processing · 71ad0f5e
      Jiri Olsa 提交于
      This brings the support for DWARF cfi unwinding on perf post
      processing. Call frame informations are retrieved and then passed
      to libunwind that requests memory and register content from the
      applications.
      
      Adding unwind object to handle the user stack backtrace based
      on the user register values and user stack dump.
      
      The unwind object access the libunwind via remote interface
      and provides to it all the necessary data to unwind the stack.
      
      The unwind interface provides following function:
      	unwind__get_entries
      
      And callback (specified in above function) to retrieve
      the backtrace entries:
      	typedef int (*unwind_entry_cb_t)(struct unwind_entry *entry,
      					 void *arg);
      Signed-off-by: NJiri Olsa <jolsa@redhat.com>
      Original-patch-by: NFrederic Weisbecker <fweisbec@gmail.com>
      Cc: "Frank Ch. Eigler" <fche@redhat.com>
      Cc: Arun Sharma <asharma@fb.com>
      Cc: Benjamin Redelings <benjamin.redelings@nescent.org>
      Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
      Cc: Cyrill Gorcunov <gorcunov@openvz.org>
      Cc: Frank Ch. Eigler <fche@redhat.com>
      Cc: Frederic Weisbecker <fweisbec@gmail.com>
      Cc: Ingo Molnar <mingo@elte.hu>
      Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
      Cc: Paul Mackerras <paulus@samba.org>
      Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
      Cc: Robert Richter <robert.richter@amd.com>
      Cc: Stephane Eranian <eranian@google.com>
      Cc: Tom Zanussi <tzanussi@gmail.com>
      Cc: Ulrich Drepper <drepper@gmail.com>
      Link: http://lkml.kernel.org/r/1344345647-11536-12-git-send-email-jolsa@redhat.com
      [ Replaced use of perf_session by usage of perf_evsel ]
      Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
      71ad0f5e
  3. 08 8月, 2012 3 次提交
  4. 28 6月, 2012 1 次提交
    • A
      perf tools: Stop using a global trace events description list · da378962
      Arnaldo Carvalho de Melo 提交于
      The pevent thing is per perf.data file, so I made it stop being static
      and become a perf_session member, so tools processing perf.data files
      use perf_session and _there_ we read the trace events description into
      session->pevent and then change everywhere to stop using that single
      global pevent variable and use the per session one.
      
      Note that it _doesn't_ fall backs to trace__event_id, as we're not
      interested at all in what is present in the
      /sys/kernel/debug/tracing/events in the workstation doing the analysis,
      just in what is in the perf.data file.
      
      This patch also introduces perf_session__set_tracepoints_handlers that
      is the perf perf.data/session way to associate handlers to tracepoint
      events by resolving their IDs using the events descriptions stored in a
      perf.data file. Make 'perf sched' use it.
      Reported-by: NDmitry Antipov <dmitry.antipov@linaro.org>
      Tested-by: NDmitry Antipov <dmitry.antipov@linaro.org>
      Cc: Frederic Weisbecker <fweisbec@gmail.com>
      Cc: Namhyung Kim <namhyung@gmail.com>
      Cc: Paul Mackerras <paulus@samba.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: linaro-dev@lists.linaro.org
      Cc: patches@linaro.org
      Link: http://lkml.kernel.org/r/20120625232016.GA28525@infradead.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
      da378962
  5. 20 6月, 2012 2 次提交
  6. 25 4月, 2012 1 次提交
    • S
      perf: Have perf use the new libtraceevent.a library · aaf045f7
      Steven Rostedt 提交于
      The event parsing code in perf was originally copied from trace-cmd
      but never was kept up-to-date with the changes that was done there.
      The trace-cmd libtraceevent.a code is much more mature than what is
      currently in perf.
      
      This updates the code to use wrappers to handle the calls to the
      new event parsing code. The new code requires a handle to be pass
      around, which removes the global event variables and allows
      more than one event structure to be read from different files
      (and different machines).
      
      But perf still has the old global events and the code throughout
      perf does not yet have a nice way to pass around a handle.
      A global 'pevent' has been made for perf and the old calls have
      been created as wrappers to the new event parsing code that uses
      the global pevent.
      
      With this change, perf can later incorporate the pevent handle into
      the perf structures and allow more than one file to be read and
      compared, that contains different events.
      Signed-off-by: NSteven Rostedt <rostedt@goodmis.org>
      Cc: Ingo Molnar <mingo@kernel.org>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Arnaldo Carvalho de Melo <acme@infradead.org>
      Cc: Steven Rostedt <rostedt@goodmis.org>
      Cc: Borislav Petkov <bp@alien8.de>
      Cc: Jiri Olsa <jolsa@redhat.com>
      Cc: Arun Sharma <asharma@fb.com>
      Cc: Namhyung Kim <namhyung.kim@lge.com>
      Signed-off-by: NFrederic Weisbecker <fweisbec@gmail.com>
      aaf045f7
  7. 31 1月, 2012 4 次提交
    • A
      perf script: Add option resolving vmlinux path · 0bc8d205
      Akihiro Nagai 提交于
      Add the option get the path of [kernel.kallsyms].
      Specify '--show-kernel-path' option to use this function.
      This patch enables other applications to use this output easily.
      
      Without --show-kernel-path  option
      
      ffffffff81467612 irq_return ([kernel.kallsyms])
      ffffffff81467612 irq_return ([kernel.kallsyms])
          7f24fc02a6b3 _start (/lib64/ld-2.14.so)
      [snip]
      
      With --show-kernel-path option
      
      ffffffff81467612 irq_return (/lib/modules/3.2.0+/build/vmlinux)
      ffffffff81467612 irq_return (/lib/modules/3.2.0+/build/vmlinux)
          7f24fc02a6b3 _start (/lib64/ld-2.14.so)
      [snip]
      
      Cc: David Ahern <dsahern@gmail.com>
      Cc: Frederic Weisbecker <fweisbec@gmail.com>
      Cc: Ingo Molnar <mingo@elte.hu>
      Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
      Cc: Paul Mackerras <paulus@samba.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: yrl.pp-manager.tt@hitachi.com
      Link: http://lkml.kernel.org/r/20120130044320.2384.73322.stgit@linux3Signed-off-by: NAkihiro Nagai <akihiro.nagai.hw@hitachi.com>
      Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
      0bc8d205
    • A
      perf script: Add the offset field specifier · a978f2ab
      Akihiro Nagai 提交于
      Add the offset field specifier 'symoff' to show the offset from
      the symbols in the output of perf-script. We can get the more
      detailed address information.
      
      Output sample:
      ffffffff81467612 irq_return+0x0 => 301ec016b0 _start+0x0
      ffffffff81467612 irq_return+0x0 => 301ec016b0 _start+0x0
            301ec016b3 _start+0x3     => 301ec04b70 _dl_start+0x0
      ffffffff81467612 irq_return+0x0 => 301ec04b70 _dl_start+0x0
      ffffffff81467612 irq_return+0x0 => 301ec04b96 _dl_start+0x26
      ffffffff81467612 irq_return+0x0 => 301ec04b9d _dl_start+0x2d
            301ec04beb _dl_start+0x7b => 301ec04c0d _dl_start+0x9d
            301ec04c11 _dl_start+0xa1 => 301ec04bf0 _dl_start+0x80
      [snip]
      
      Cc: David Ahern <dsahern@gmail.com>
      Cc: Frederic Weisbecker <fweisbec@gmail.com>
      Cc: Ingo Molnar <mingo@elte.hu>
      Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
      Cc: Paul Mackerras <paulus@samba.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: yrl.pp-manager.tt@hitachi.com
      Link: http://lkml.kernel.org/r/20120130044314.2384.67094.stgit@linux3Signed-off-by: NAkihiro Nagai <akihiro.nagai.hw@hitachi.com>
      Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
      a978f2ab
    • A
      perf script: Print branch_from and branch_to of BTS events · 95582596
      Akihiro Nagai 提交于
      BTS records branch_from_addr and branch_to_addr in IP and ADDR field in perf_sample.
      This patch enables to print them in following format,
      
      <from_addr> <from_symbol> (<from_dso>) => <to_addr> <to_symbol> (<to_dso>)
      
      Sample:
       ffffffff814675d2 irq_return ([kernel.kallsyms]) => 3f03e016b0    _start (/lib64/ld-2.14.so)
       ffffffff814675d2 irq_return ([kernel.kallsyms]) => 3f03e016b0    _start (/lib64/ld-2.14.so)
             3f03e016b3     _start (/lib64/ld-2.14.so) => 3f03e04b80 _dl_start (/lib64/ld-2.14.so)
       ffffffff814675d2 irq_return ([kernel.kallsyms]) => 3f03e04b80 _dl_start (/lib64/ld-2.14.so)
       ffffffff814675d2 irq_return ([kernel.kallsyms]) => 3f03e04ba6 _dl_start (/lib64/ld-2.14.so)
       ffffffff814675d2 irq_return ([kernel.kallsyms]) => 3f03e04bad _dl_start (/lib64/ld-2.14.so)
             3f03e04bfb  _dl_start (/lib64/ld-2.14.so) => 3f03e04c1d _dl_start (/lib64/ld-2.14.so)
      [snip]
      
      Cc: David Ahern <dsahern@gmail.com>
      Cc: Frederic Weisbecker <fweisbec@gmail.com>
      Cc: Ingo Molnar <mingo@elte.hu>
      Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
      Cc: Paul Mackerras <paulus@samba.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: yrl.pp-manager.tt@hitachi.com
      Link: http://lkml.kernel.org/r/20120130044309.2384.44252.stgit@linux3Signed-off-by: NAkihiro Nagai <akihiro.nagai.hw@hitachi.com>
      Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
      95582596
    • A
      perf script: Unify the expressions indicating "unknown" · 547a92e0
      Akihiro Nagai 提交于
      The perf script command uses various expressions to indicate "unknown".
      
      It is unfriendly for user scripts to parse it. So, this patch unifies
      the expressions to "[unknown]".
      
      Cc: David Ahern <dsahern@gmail.com>
      Cc: Frederic Weisbecker <fweisbec@gmail.com>
      Cc: Ingo Molnar <mingo@elte.hu>
      Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
      Cc: Paul Mackerras <paulus@samba.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: yrl.pp-manager.tt@hitachi.com
      Link: http://lkml.kernel.org/r/20120130044257.2384.62905.stgit@linux3Signed-off-by: NAkihiro Nagai <akihiro.nagai.hw@hitachi.com>
      Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
      547a92e0
  8. 08 1月, 2012 1 次提交
  9. 04 1月, 2012 1 次提交
  10. 24 12月, 2011 2 次提交
  11. 12 12月, 2011 2 次提交
  12. 28 11月, 2011 6 次提交
  13. 08 10月, 2011 1 次提交
    • S
      perf tools: Make perf.data more self-descriptive (v8) · fbe96f29
      Stephane Eranian 提交于
      The goal of this patch is to include more information about the host
      environment into the perf.data so it is more self-descriptive. Overtime,
      profiles are captured on various machines and it becomes hard to track
      what was recorded, on what machine and when.
      
      This patch provides a way to solve this by extending the perf.data file
      with basic information about the host machine. To add those extensions,
      we leverage the feature bits capabilities of the perf.data format.  The
      change is backward compatible with existing perf.data files.
      
      We define the following useful new extensions:
       - HEADER_HOSTNAME: the hostname
       - HEADER_OSRELEASE: the kernel release number
       - HEADER_ARCH: the hw architecture
       - HEADER_CPUDESC: generic CPU description
       - HEADER_NRCPUS: number of online/avail cpus
       - HEADER_CMDLINE: perf command line
       - HEADER_VERSION: perf version
       - HEADER_TOPOLOGY: cpu topology
       - HEADER_EVENT_DESC: full event description (attrs)
       - HEADER_CPUID: easy-to-parse low level CPU identication
      
      The small granularity for the entries is to make it easier to extend
      without breaking backward compatiblity. Many entries are provided as
      ASCII strings.
      
      Perf report/script have been modified to print the basic information as
      easy-to-parse ASCII strings. Extended information about CPU and NUMA
      topology may be requested with the -I option.
      
      Thanks to David Ahern for reviewing and testing the many versions of
      this patch.
      
       $ perf report --stdio
       # ========
       # captured on : Mon Sep 26 15:22:14 2011
       # hostname : quad
       # os release : 3.1.0-rc4-tip
       # perf version : 3.1.0-rc4
       # arch : x86_64
       # nrcpus online : 4
       # nrcpus avail : 4
       # cpudesc : Intel(R) Core(TM)2 Quad CPU Q6600 @ 2.40GHz
       # cpuid : GenuineIntel,6,15,11
       # total memory : 8105360 kB
       # cmdline : /home/eranian/perfmon/official/tip/build/tools/perf/perf record date
       # event : name = cycles, type = 0, config = 0x0, config1 = 0x0, config2 = 0x0, excl_usr = 0, excl_kern = 0, id = { 29, 30, 31,
       # HEADER_CPU_TOPOLOGY info available, use -I to display
       # HEADER_NUMA_TOPOLOGY info available, use -I to display
       # ========
       #
       ...
      
       $ perf report --stdio -I
       # ========
       # captured on : Mon Sep 26 15:22:14 2011
       # hostname : quad
       # os release : 3.1.0-rc4-tip
       # perf version : 3.1.0-rc4
       # arch : x86_64
       # nrcpus online : 4
       # nrcpus avail : 4
       # cpudesc : Intel(R) Core(TM)2 Quad CPU Q6600 @ 2.40GHz
       # cpuid : GenuineIntel,6,15,11
       # total memory : 8105360 kB
       # cmdline : /home/eranian/perfmon/official/tip/build/tools/perf/perf record date
       # event : name = cycles, type = 0, config = 0x0, config1 = 0x0, config2 = 0x0, excl_usr = 0, excl_kern = 0, id = { 29, 30, 31,
       # sibling cores   : 0-3
       # sibling threads : 0
       # sibling threads : 1
       # sibling threads : 2
       # sibling threads : 3
       # node0 meminfo  : total = 8320608 kB, free = 7571024 kB
       # node0 cpu list : 0-3
       # ========
       #
       ...
      Reviewed-by: NDavid Ahern <dsahern@gmail.com>
      Tested-by: NDavid Ahern <dsahern@gmail.com>
      Cc: David Ahern <dsahern@gmail.com>
      Cc: Ingo Molnar <mingo@elte.hu>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Robert Richter <robert.richter@amd.com>
      Cc: Andi Kleen <ak@linux.intel.com>
      Link: http://lkml.kernel.org/r/20110930134040.GA5575@quadSigned-off-by: NStephane Eranian <eranian@google.com>
      [ committer notes: Use --show-info in the tools as was in the docs, rename
        perf_header_fprintf_info to perf_file_section__fprintf_info, fixup
        conflict with f69b64f7 "perf: Support setting the disassembler style" ]
      Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
      fbe96f29
  14. 05 7月, 2011 1 次提交
    • A
      perf report/annotate/script: Add option to specify a CPU range · 5d67be97
      Anton Blanchard 提交于
      Add an option to perf report/annotate/script to specify which
      CPUs to operate on. This enables us to take a single system wide
      profile and analyse each CPU (or group of CPUs) in isolation.
      
      This was useful when profiling a multiprocess workload where the
      bottleneck was on one CPU but this was hidden in the overall
      profile. Per process and per thread breakdowns didn't help
      because multiple processes were running on each CPU and no
      single process consumed an entire CPU.
      
      The patch converts the list of CPUs returned by cpu_map__new
      into a bitmap for fast lookup. I wanted to use -C to be
      consistent with perf top/record/stat, but unfortunately perf
      report already uses -C <comms>.
      
       v2: Incorporate suggestions from David Ahern:
      	- Added -c to perf script
      	- Check that SAMPLE_CPU is set when -c is used
      	- Update documentation
      
       v3: Create perf_session__cpu_bitmap()
      Signed-off-by: NAnton Blanchard <anton@samba.org>
      Acked-by: NDavid Ahern <dsahern@gmail.com>
      Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
      Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
      Cc: Paul Mackerras <paulus@samba.org>
      Link: http://lkml.kernel.org/r/20110704215750.11647eb9@krytenSigned-off-by: NIngo Molnar <mingo@elte.hu>
      5d67be97
  15. 03 6月, 2011 3 次提交
  16. 26 5月, 2011 1 次提交
  17. 20 4月, 2011 1 次提交
  18. 19 4月, 2011 1 次提交
  19. 31 3月, 2011 1 次提交
    • D
      perf script: If type not given fields apply to all event types · 2c9e45f7
      David Ahern 提交于
      Allow:
        perf script -f <fields>
      
      to be equivalent to:
        perf script -f trace:<fields> -f sw:<fields> -f hw:<fields>
      
      i.e., the specified fields apply to all event types if the type string
      is not given.
      
      The field (-f) arguments are processed in the order received. A later
      usage can reset a prior request. e.g.,
      
        -f trace: -f comm,tid,time,sym
      
      The first -f suppresses trace events (field list is ""), but then the second
      invocation sets the fields to comm,tid,time,sym. In this case a warning is
      given to the user:
      
        "Overriding previous field request for all events."
      
      Alternativey, consider the order:
      
        -f comm,tid,time,sym -f trace:
      
      The first -f sets the fields for all events and the second -f suppresses trace
      events. The user is given a warning message about the override, and the result
      of the above is that only S/W and H/W events are displayed with the given
      fields.
      
      For the 'wildcard' option if a user selected field is invalid for an event
      type, a message is displayed to the user that the option is ignored for that
      type. For example:
      
        perf script -f comm,tid,trace 2>&1 | less
        'trace' not valid for hardware events. Ignoring.
        'trace' not valid for software events. Ignoring.
      
      Alternatively, if the type is given an invalid field is specified it is an
      error. For example:
      
          perf script -v -f sw:comm,tid,trace 2>&1 | less
          'trace' not valid for software events.
      
      At this point usage is displayed, and perf-script exits.
      
      Finally, a user may not set fields to none for all event types.
      i.e., -f "" is not allowed.
      
      Cc: Frederic Weisbecker <fweisbec@gmail.com>
      Cc: Ingo Molnar <mingo@elte.hu>
      Cc: Paul Mackerras <paulus@samba.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: linux-kernel@vger.kernel.org
      LPU-Reference: <1300377801-27246-1-git-send-email-daahern@cisco.com>
      Signed-off-by: NDavid Ahern <daahern@cisco.com>
      Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
      2c9e45f7
  20. 24 3月, 2011 1 次提交
    • A
      perf session: Pass evsel in event_ops->sample() · 9e69c210
      Arnaldo Carvalho de Melo 提交于
      Resolving the sample->id to an evsel since the most advanced tools,
      report and annotate, and the others will too when they evolve to
      properly support multi-event perf.data files.
      
      Good also because it does an extra validation, checking that the ID is
      valid when present. When that is not the case, the overhead is just a
      branch + function call (perf_evlist__id2evsel).
      
      Cc: Frederic Weisbecker <fweisbec@gmail.com>
      Cc: Ingo Molnar <mingo@elte.hu>
      Cc: Mike Galbraith <efault@gmx.de>
      Cc: Paul Mackerras <paulus@samba.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Stephane Eranian <eranian@google.com>
      Cc: Tom Zanussi <tzanussi@gmail.com>
      LKML-Reference: <new-submission>
      Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
      9e69c210
  21. 15 3月, 2011 5 次提交
    • D
      perf script: Add support for H/W and S/W events · 1424dc96
      David Ahern 提交于
      Custom fields set for each type by prepending field argument with type.
      For file with multiple event types (e.g., trace and S/W) display of an
      event type suppressed by setting output fields to "".
      
      e.g.,
      perf record -ga -e sched:sched_switch -e cpu-clock -c 10000000 -R -- sleep 1
      perf script
      
      openssl 11496 [000]  9711.807107: cpu-clock-msecs:
              ffffffff810c22dc arch_local_irq_restore ([kernel.kallsyms])
              ffffffff810c518c __alloc_pages_nodemask ([kernel.kallsyms])
              ffffffff810297b2 pte_alloc_one ([kernel.kallsyms])
              ffffffff810d8b98 __pte_alloc ([kernel.kallsyms])
              ffffffff810daf07 handle_mm_fault ([kernel.kallsyms])
              ffffffff8138763a do_page_fault ([kernel.kallsyms])
              ffffffff81384a65 page_fault ([kernel.kallsyms])
                  7f6130507d70 asn1_check_tlen (/lib64/libcrypto.so.1.0.0c)
                             0  ()
      
               openssl 11496 [000]  9711.808042: sched_switch: prev_comm=openssl ...
           kworker/0:0     4 [000]  9711.808067: sched_switch: prev_comm=kworker/...
               swapper     0 [001]  9711.808090: sched_switch: prev_comm=kworker/...
                  sshd 11451 [001]  9711.808185: sched_switch: prev_comm=sshd pre...
      swapper     0 [001]  9711.816155: cpu-clock-msecs:
              ffffffff81023609 native_safe_halt ([kernel.kallsyms])
              ffffffff8100132a cpu_idle ([kernel.kallsyms])
              ffffffff8137cf9b start_secondary ([kernel.kallsyms])
      
      openssl 11496 [000]  9711.817104: cpu-clock-msecs:
                  7f61304ad723 AES_cbc_encrypt (/lib64/libcrypto.so.1.0.0c)
                  7fff3402f950  ()
              12f0debc9a785634  ()
      
      swapper     0 [001]  9711.826155: cpu-clock-msecs:
              ffffffff81023609 native_safe_halt ([kernel.kallsyms])
              ffffffff8100132a cpu_idle ([kernel.kallsyms])
              ffffffff8137cf9b start_secondary ([kernel.kallsyms])
      
      To suppress trace events within the file and use default output for S/W events:
      perf script -f trace:
      
      or to suppress S/W events and do default display for trace events:
      perf script -f sw:
      
      Custom field selections:
      perf script -f sw:comm,tid,time -f trace:time,trace
      
               openssl 11496  9711.797162:
               swapper     0  9711.807071:
               openssl 11496  9711.807107:
       9711.808042: prev_comm=openssl prev_pid=11496 prev_prio=120 prev_state=R ...
       9711.808067: prev_comm=kworker/0:0 prev_pid=4 prev_prio=120 prev_state=S ...
       9711.808090: prev_comm=kworker/0:0 prev_pid=0 prev_prio=120 prev_state=R ...
       9711.808185: prev_comm=sshd prev_pid=11451 prev_prio=120 prev_state=S ==>...
               swapper     0  9711.816155:
               openssl 11496  9711.817104:
               swapper     0  9711.826155:
      Acked-by: NFrederic Weisbecker <fweisbec@gmail.com>
      Cc: Frederic Weisbecker <fweisbec@gmail.com>
      Cc: Ingo Molnar <mingo@elte.hu>
      Cc: Paul Mackerras <paulus@samba.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      LKML-Reference: <1299734608-5223-7-git-send-email-daahern@cisco.com>
      Signed-off-by: NDavid Ahern <daahern@cisco.com>
      Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
      1424dc96
    • D
      perf script: Add support for dumping symbols · c0230b2b
      David Ahern 提交于
      Add option to dump symbols found in events.
      
      e.g., perf script -f comm,pid,tid,time,trace,sym
      
      swapper     0/0       537.037184: prev_comm=swapper prev_pid=0 prev_prio=120...
              ffffffff81030350 perf_trace_sched_switch ([kernel.kallsyms])
              ffffffff81382ac5 schedule ([kernel.kallsyms])
              ffffffff8100134a cpu_idle ([kernel.kallsyms])
              ffffffff81370b39 rest_init ([kernel.kallsyms])
              ffffffff81696c23 start_kernel ([kernel.kallsyms].init.text)
              ffffffff816962af x86_64_start_reservations ([kernel.kallsyms].init.text)
              ffffffff816963b9 x86_64_start_kernel ([kernel.kallsyms].init.text)
      
      sshd  1675/1675    537.037309: prev_comm=sshd prev_pid=1675 prev_prio=120...
              ffffffff81030350 perf_trace_sched_switch ([kernel.kallsyms])
              ffffffff81382ac5 schedule ([kernel.kallsyms])
              ffffffff813837aa schedule_hrtimeout_range_clock ([kernel.kallsyms])
              ffffffff81383886 schedule_hrtimeout_range ([kernel.kallsyms])
              ffffffff8110c4f9 poll_schedule_timeout ([kernel.kallsyms])
              ffffffff8110cd20 do_select ([kernel.kallsyms])
              ffffffff8110ced8 core_sys_select ([kernel.kallsyms])
              ffffffff8110d00d sys_select ([kernel.kallsyms])
              ffffffff81002bc2 system_call ([kernel.kallsyms])
                  7f1647e56e93 __GI_select (/lib64/libc-2.12.90.so)
      
      netstat  1692/1692    537.038664: prev_comm=netstat prev_pid=1692 prev_prio=...
              ffffffff81030350 perf_trace_sched_switch ([kernel.kallsyms])
              ffffffff81382ac5 schedule ([kernel.kallsyms])
              ffffffff81002c3a sysret_careful ([kernel.kallsyms])
                  7f7a6cd1b210 __GI___libc_read (/lib64/libc-2.12.90.so)
      Acked-by: NFrederic Weisbecker <fweisbec@gmail.com>
      Cc: Frederic Weisbecker <fweisbec@gmail.com>
      Cc: Ingo Molnar <mingo@elte.hu>
      Cc: Paul Mackerras <paulus@samba.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      LKML-Reference: <1299734608-5223-6-git-send-email-daahern@cisco.com>
      Signed-off-by: NDavid Ahern <daahern@cisco.com>
      Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
      c0230b2b
    • D
      perf script: Support custom field selection for output · 745f43e3
      David Ahern 提交于
      Allow a user to select which fields to print to stdout for event data.
      Options include comm (command name), tid (thread id), pid (process id),
      time (perf timestamp), cpu, event (for event name), and trace (for
      trace data).
      
      Default is set to maintain compatibility with current output; this
      feature does alter output format slightly -- no '-' between command
      and pid/tid.
      
      Thanks to Frederic Weisbecker for detailed suggestions on this approach.
      
      Examples (output compressed)
      
      1. trace, default format
      
      perf record -ga -e sched:sched_switch
      perf script
      
      swapper    0 [000] 537.037184: sched_switch: prev_comm=swapper prev_pid=0...
         sshd 1675 [000] 537.037309: sched_switch: prev_comm=sshd prev_pid=1675...
      netstat 1692 [001] 537.038664: sched_switch: prev_comm=netstat prev_pid=1692...
      
      2. trace, custom format
      
      perf record -ga -e sched:sched_switch
      perf script -f comm,pid,time,trace     <--- omitting cpu and event name
      
      swapper    0 537.037184: prev_comm=swapper prev_pid=0 prev_prio=120 ...
         sshd 1675 537.037309: prev_comm=sshd prev_pid=1675 prev_prio=120 ...
      netstat 1692 537.038664: prev_comm=netstat prev_pid=1692 prev_prio=120 ...
      Acked-by: NFrederic Weisbecker <fweisbec@gmail.com>
      Cc: Frederic Weisbecker <fweisbec@gmail.com>
      Cc: Ingo Molnar <mingo@elte.hu>
      Cc: Paul Mackerras <paulus@samba.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      LKML-Reference: <1299734608-5223-5-git-send-email-daahern@cisco.com>
      Signed-off-by: NDavid Ahern <daahern@cisco.com>
      Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
      745f43e3
    • D
      perf script: Move printing of 'common' data from print_event and rename · c70c94b4
      David Ahern 提交于
      This change does impact output: latency data is trace specific and is
      now printed after the common data - comm, tid, cpu, time and event name.
      Acked-by: NFrederic Weisbecker <fweisbec@gmail.com>
      Cc: Frederic Weisbecker <fweisbec@gmail.com>
      Cc: Ingo Molnar <mingo@elte.hu>
      Cc: Paul Mackerras <paulus@samba.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      LKML-Reference: <1299734608-5223-4-git-send-email-daahern@cisco.com>
      Signed-off-by: NDavid Ahern <daahern@cisco.com>
      Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
      c70c94b4
    • D
      perf script: Change process_event prototype · be6d842a
      David Ahern 提交于
      Prepare for handling of samples for any event type.
      Acked-by: NFrederic Weisbecker <fweisbec@gmail.com>
      Cc: Frederic Weisbecker <fweisbec@gmail.com>
      Cc: Ingo Molnar <mingo@elte.hu>
      Cc: Paul Mackerras <paulus@samba.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      LKML-Reference: <1299734608-5223-2-git-send-email-daahern@cisco.com>
      Signed-off-by: NDavid Ahern <daahern@cisco.com>
      Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
      be6d842a