1. 21 5月, 2010 14 次提交
  2. 20 5月, 2010 8 次提交
    • A
      perf annotate: Use build-ids to find the right DSO · b36f19d5
      Arnaldo Carvalho de Melo 提交于
      We were still using the pathname found on the MMAP event, that could not
      be the one we used when recording, so use the build-id cache for that,
      only falling back to use the pathname in the MMAP event if no build-ids
      are available.
      
      With this we now also are able to do secure, seamless offline annotation.
      
      Example:
      
      [root@doppio linux-2.6-tip]# perf report -g none -v 2> /dev/null | head -10
           8.12%     Xorg  /usr/lib64/libpixman-1.so.0.14.0       0x0000000000026d02 B [.] pixman_rasterize_edges
           4.68%  firefox  /usr/lib64/xulrunner-1.9.1/libxul.so   0x00000000005dbdba B [.] 0x000000005dbdba
           3.70%  swapper  /lib/modules/2.6.34-rc6/build/vmlinux  0xffffffff81022cea ! [k] read_hpet
           2.96%     init  /lib/modules/2.6.34-rc6/build/vmlinux  0xffffffff81022cea ! [k] read_hpet
           2.73%  swapper  /lib/modules/2.6.34-rc6/build/vmlinux  0xffffffff8100a738 ! [k] mwait_idle_with_hints
      [root@doppio linux-2.6-tip]# perf annotate -v pixman_rasterize_edges 2>&1 | grep Executing
      Executing: objdump --start-address=0x000000371ce26670 --stop-address=0x000000371ce2709f -dS /root/.debug/.build-id/bd/6ac5199137aaeb279f864717d8d061477466c1|grep -v /root/.debug/.build-id/bd/6ac5199137aaeb279f864717d8d061477466c1|expand
      [root@doppio linux-2.6-tip]# perf buildid-list | grep libpixman-1.so.0.14.0
      bd6ac5199137aaeb279f864717d8d061477466c1 /usr/lib64/libpixman-1.so.0.14.0
      [root@doppio linux-2.6-tip]#
      Reported-by: NStephane Eranian <eranian@google.com>
      Cc: Frédéric Weisbecker <fweisbec@gmail.com>
      Cc: Mike Galbraith <efault@gmx.de>
      Cc: Paul Mackerras <paulus@samba.org>
      Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
      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>
      b36f19d5
    • A
      perf TUI: Make 'space' be an alias to 'PgDn' · 17930b40
      Arnaldo Carvalho de Melo 提交于
      Just like if one is using the stdio based pager, or more/less, for that
      matter.
      Suggested-by: NPeter Zijlstra <a.p.zijlstra@chello.nl>
      Cc: Frédéric Weisbecker <fweisbec@gmail.com>
      Cc: Mike Galbraith <efault@gmx.de>
      Cc: Paul Mackerras <paulus@samba.org>
      Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
      Cc: Tom Zanussi <tzanussi@gmail.com>
      LKML-Reference: <new-submission>
      Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
      17930b40
    • I
      Merge branch 'perf/urgent' of... · dfacc4d6
      Ingo Molnar 提交于
      Merge branch 'perf/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/frederic/random-tracing into perf/core
      dfacc4d6
    • F
      perf: Fix unaligned accesses while fetching trace values · 85cb68b2
      Frederic Weisbecker 提交于
      Accessing trace values of an 8 size may end up in a segfault
      on archs that can't deal with misaligned access, which is the
      case for sparc 64. This is because PERF_SAMPLE_RAW are aligned
      to 4 and not to 8.
      
      Fix this on the macros that get the values of 8 size.
      
      This fixes segfaults on perf tools in sparc 64.
      Signed-off-by: NFrederic Weisbecker <fweisbec@gmail.com>
      Cc: Ingo Molnar <mingo@elte.hu>
      Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
      Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
      Cc: Paul Mackerras <paulus@samba.org>
      Cc: Steven Rostedt <rostedt@goodmis.org>
      Cc: Tom Zanussi <tzanussi@gmail.com>
      Cc: Masami Hiramatsu <mhiramat@redhat.com>
      Cc: David Miller <davem@davemloft.net>
      85cb68b2
    • F
      perf: Comply with new rcu checks API · 49f135ed
      Frederic Weisbecker 提交于
      The software events hlist doesn't fully comply with the new
      rcu checks api.
      
      We need to consider three different sides that access the hlist:
      
      - the hlist allocation/release side. This side happens when an
        events is created or released, accesses to the hlist are
        serialized under the cpuctx mutex.
      
      - the events insertion/removal in the hlist. This side is always
        serialized against the above one. The hlist is always present
        during such operations. This side happens when a software event
        is scheduled in/out. The serialization that ensures the software
        event is really attached to the context is made under the
        ctx->lock.
      
      - events triggering. This is the read side, it can happen
        concurrently with any update side.
      
      This patch deals with them one by one and anticipates with the
      separate rcu mem space patches in preparation.
      
      This patch fixes various annoying rcu warnings.
      Reported-by: NPaul E. McKenney <paulmck@linux.vnet.ibm.com>
      Signed-off-by: NFrederic Weisbecker <fweisbec@gmail.com>
      Cc: Ingo Molnar <mingo@elte.hu>
      Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
      Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
      Cc: Paul Mackerras <paulus@samba.org>
      49f135ed
    • T
      perf: Use read() instead of lseek() in trace_event_read.c:skip() · cbb5cf7f
      Tom Zanussi 提交于
      This is a small fix for a problem affecting live-mode, introduced
      recently:
      
      root@tropicana:~# perf trace rwtop
      perf trace started with Perl
      script /root/libexec/perf-core/scripts/perl/rwtop.pl
      
        Fatal: did not read header event
      
      commit d00a47cc added a skip()
      function to skip over e.g. header_page, but this doesn't work for
      live mode.  This patch re-implements skip() to use read() instead of
      lseek() to fix that.
      Signed-off-by: NTom Zanussi <tzanussi@gmail.com>
      Cc: Ingo Molnar <mingo@elte.hu>
      Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
      Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
      Cc: Paul Mackerras <paulus@samba.org>
      LKML-Reference: <1273032130.6383.28.camel@tropicana>
      Signed-off-by: NFrederic Weisbecker <fweisbec@gmail.com>
      cbb5cf7f
    • A
      perf session: Make read_build_id routines look at the host_machine too · f869097e
      Arnaldo Carvalho de Melo 提交于
      The changes made to support host and guest machines in a session, that
      started when the 'perf kvm' tool was introduced ended up introducing a
      bug where the host_machine was not having its DSOs traversed for
      build-id processing.
      
      Fix it by moving some methods to the right classes and considering the
      host_machine when processing build-ids.
      Reported-by: NTom Zanussi <tzanussi@gmail.com>
      Reported-by: NStephane Eranian <eranian@google.com>
      Cc: Frédéric Weisbecker <fweisbec@gmail.com>
      Cc: Mike Galbraith <efault@gmx.de>
      Cc: Paul Mackerras <paulus@samba.org>
      Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
      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>
      f869097e
    • A
      perf symbols: Don't try to read the build-id twice · f6e1467d
      Arnaldo Carvalho de Melo 提交于
      In __dsos__read_build_ids if the dso already had its build-id read,
      don't try again.
      
      Cc: Frédéric Weisbecker <fweisbec@gmail.com>
      Cc: Mike Galbraith <efault@gmx.de>
      Cc: Paul Mackerras <paulus@samba.org>
      Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
      Cc: Tom Zanussi <tzanussi@gmail.com>
      LKML-Reference: <new-submission>
      Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
      f6e1467d
  3. 19 5月, 2010 18 次提交