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author | Jin Yao <yao.jin@linux.intel.com> | 2019-04-12 21:59:47 +0800 |
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committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2019-05-16 14:17:24 -0300 |
commit | 064b4e82aa1633c27c383cc686b87ced57e072d1 (patch) | |
tree | 955aa3545b71fd36dd531007f6e01e57ba6681dd /tools/perf/util/smt.h | |
parent | 6cf626563998d3f8770cc25146986810ee4a5969 (diff) | |
download | linux-064b4e82aa1633c27c383cc686b87ced57e072d1.tar.bz2 |
perf tools: Add a 'percore' event qualifier
Add a 'percore' event qualifier, like cpu/event=0,umask=0x3,percore=1/,
that sums up the event counts for both hardware threads in a core.
We can already do this with --per-core, but it's often useful to do
this together with other metrics that are collected per hardware thread.
So we need to support this per-core counting on a event level.
This can be implemented in only the user tool, no kernel support needed.
v4:
---
1. Add Arnaldo's patch which updates the documentation for
this new qualifier.
2. Rebase to latest perf/core branch
v3:
---
Simplify the code according to Jiri's comments.
Before:
"return term->val.percore ? true : false;"
Now:
"return term->val.percore;"
v2:
---
Change the qualifier name from 'coresum' to 'percore' according to
comments from Jiri and Andi.
Signed-off-by: Jin Yao <yao.jin@linux.intel.com>
Tested-by: Ravi Bangoria <ravi.bangoria@linux.ibm.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jin Yao <yao.jin@intel.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1555077590-27664-2-git-send-email-yao.jin@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/smt.h')
0 files changed, 0 insertions, 0 deletions