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  1. 02 Mar, 2011 1 commit
    • Lin Ming's avatar
      perf, x86: Add Intel SandyBridge CPU support · b06b3d49
      Lin Ming authored 
      This patch adds basic SandyBridge support, including hardware
cache events and PEBS events support.

It has been tested on SandyBridge CPUs with perf stat and also
with PEBS based profiling - both work fine.

The patch does not affect other models.

v2 -> v3:
 - fix PEBS event 0xd0 with right umask combinations
 - move snb pebs constraint assignment to intel_pmu_init

v1 -> v2:
 - add more raw and PEBS events constraints
 - use offcore events for LLC-* cache events
 - remove the call to Nehalem workaround enable_all function
Signed-off-by: default avatarLin Ming <ming.m.lin@intel.com>
Acked-by: default avatarPeter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Cc: Andi Kleen <andi@firstfloor.org>
LKML-Reference: <1299072424.2175.24.camel@localhost>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
      b06b3d49
  3. 28 Feb, 2011 3 commits
    • Arnaldo Carvalho de Melo's avatar
      perf symbols: Fix vmlinux path when not using --symfs · a639dc64
      Arnaldo Carvalho de Melo authored 
      The ec5761ea cset introduced the symfs feature with a bug for loading vmlinux
files that ended up causing this failure:

[root@emilia v2.6.38-rc5+]# strace -e trace=open perf top --vmlinux ./vmlinux 2>&1 | tail -3
open("/./vmlinux", O_RDONLY)            = -1 ENOENT (No such file or directory)
./vmlinux with build id b9266bf40e98dadb5d43a2f3e95d3c5d4aff46dc not found, continuing without symbols
The ./vmlinux file can't be used
[root@emilia v2.6.38-rc5+]#

Remove the extra slash, just like is done in the DSO__ORIG_DSO handling in
dso__load() and other parts of the ec5761ea cset.
Reported-by: default avatarIngo Molnar <mingo@elte.hu>
Cc: David Ahern <daahern@cisco.com>
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: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      a639dc64
    • Thomas Renninger's avatar
      perf timechart: Fix max number of cpus · 54b08f5f
      Thomas Renninger authored 
      Currently numcpus is determined in pid_put_sample which is only
called on sched_switch/sched_wakeup sample processing.

On a machine with a lot cpus I often saw the last cpu missing.

Check for (max) numcpus on every event happening and in the
beginning. -> fixes the issue for me.
Signed-off-by: default avatarThomas Renninger <trenn@suse.de>
Cc: Arjan van de Ven <arjan@linux.intel.com>
Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Cc: lenb@kernel.org
LKML-Reference: <1298842606-55712-6-git-send-email-trenn@suse.de>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
      54b08f5f
    • Thomas Renninger's avatar
      perf timechart: Fix black idle boxes in the title · e8530720
      Thomas Renninger authored 
      This fix is needed for eye of gnome and firefox svg viewers.
Only Inkscape can handle the broken case.

Compare with the other svg_legenda_box declarations, looks
like a typo slipped in at this place.
Signed-off-by: default avatarThomas Renninger <trenn@suse.de>
Cc: Arjan van de Ven <arjan@linux.intel.com>
Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Cc: lenb@kernel.org
LKML-Reference: <1298842606-55712-5-git-send-email-trenn@suse.de>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
      e8530720
  5. 25 Feb, 2011 1 commit
    • Arnaldo Carvalho de Melo's avatar
      perf hists: Print number of samples, not the period sum · 69cf0218
      Arnaldo Carvalho de Melo authored 
      So that we match the header where we state the number of events with the
"Samples" column when using 'perf report -n/--show-nr-samples':

 [root@emilia ~]# perf record -a sleep 1
 [ perf record: Woken up 1 times to write data ]
 [ perf record: Captured and wrote 0.111 MB perf.data (~4860 samples) ]
 [root@emilia ~]# perf report --stdio --show-nr-samples
 # Events: 11  cycles
 #
 # Overhead  Samples        Command       Shared Object                        Symbol
 # ........ ..........  ...........  ..................  ............................
 #
     16.65%          1        sleep  [kernel.kallsyms]   [k] unmap_vmas
     16.10%          1         perf  libpthread-2.12.so  [.] __pthread_cleanup_push_defer
     15.79%          2         perf  [kernel.kallsyms]   [k] format_decode
     12.88%          1  kworker/1:2  [kernel.kallsyms]   [k] cache_reap
     10.69%          1      swapper  [kernel.kallsyms]   [k] _raw_spin_lock
      7.55%          1        sleep  [kernel.kallsyms]   [k] prepare_exec_creds
      6.00%          1         perf  [jbd2]              [k] start_this_handle
      5.29%          1         perf  [kernel.kallsyms]   [k] seq_read
      4.75%          1         perf  [kernel.kallsyms]   [k] get_pid_task
      4.30%          1         perf  [kernel.kallsyms]   [k] _raw_spin_unlock_irqrestore

 #
 # (For a higher level overview, try: perf report --sort comm,dso)
 #
 [root@emilia ~]#
Reported-by: default avatarStephane Eranian <eranian@google.com>
Reported-by: default avatarCliff Wickman <cpw@sgi.com>
Acked-by: default avatarStephane Eranian <eranian@google.com>
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>
Cc: <stable@kernel.org>
LKML-Reference: <new-submission>
Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
[ cherry-picked it from perf/core, as it has been reported by others as well. ]
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
      69cf0218
  7. 23 Feb, 2011 5 commits
  9. 22 Feb, 2011 9 commits
  11. 21 Feb, 2011 21 commits
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