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| From | Jin Yao <yao.jin@linux.intel.com> |
| Newsgroups | linux.kernel |
| Subject | [PATCH v9 3/7] perf record: Create a new option save_type in --branch-filter |
| Date | Mon, 17 Jul 2017 05:20:01 +0200 |
| Message-ID | <u44JH-7XV-13@gated-at.bofh.it> (permalink) |
| References | <u44A2-7UE-15@gated-at.bofh.it> |
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| X-Original-Cc | Linux-kernel@vger.kernel.org, ak@linux.intel.com, kan.liang@intel.com, yao.jin@intel.com, Jin Yao <yao.jin@linux.intel.com> |
| X-Original-Date | Mon, 17 Jul 2017 19:06:39 +0800 |
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| Xref | csiph.com linux.kernel:1688625 |
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The option indicates the kernel to save branch type during sampling.
One example:
perf record -g --branch-filter any,save_type <command>
Change log
----------
v9: Not changed.
v8: Not changed.
v7: Not changed.
v6: Not changed.
v5: Not changed.
Signed-off-by: Jin Yao <yao.jin@linux.intel.com>
---
tools/perf/Documentation/perf-record.txt | 1 +
tools/perf/util/parse-branch-options.c | 1 +
2 files changed, 2 insertions(+)
diff --git a/tools/perf/Documentation/perf-record.txt b/tools/perf/Documentation/perf-record.txt
index b0e9e92..9bdea04 100644
--- a/tools/perf/Documentation/perf-record.txt
+++ b/tools/perf/Documentation/perf-record.txt
@@ -332,6 +332,7 @@ following filters are defined:
- no_tx: only when the target is not in a hardware transaction
- abort_tx: only when the target is a hardware transaction abort
- cond: conditional branches
+ - save_type: save branch type during sampling in case binary is not available later
+
The option requires at least one branch type among any, any_call, any_ret, ind_call, cond.
diff --git a/tools/perf/util/parse-branch-options.c b/tools/perf/util/parse-branch-options.c
index 38fd115..e71fb5f 100644
--- a/tools/perf/util/parse-branch-options.c
+++ b/tools/perf/util/parse-branch-options.c
@@ -28,6 +28,7 @@ static const struct branch_mode branch_modes[] = {
BRANCH_OPT("cond", PERF_SAMPLE_BRANCH_COND),
BRANCH_OPT("ind_jmp", PERF_SAMPLE_BRANCH_IND_JUMP),
BRANCH_OPT("call", PERF_SAMPLE_BRANCH_CALL),
+ BRANCH_OPT("save_type", PERF_SAMPLE_BRANCH_TYPE_SAVE),
BRANCH_END
};
--
2.7.4
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[PATCH v9 0/7] perf report: Show branch type Jin Yao <yao.jin@linux.intel.com> - 2017-07-17 05:10 +0200
[PATCH v9 6/7] perf report: Show branch type statistics for stdio mode Jin Yao <yao.jin@linux.intel.com> - 2017-07-17 05:20 +0200
[PATCH v9 5/7] perf util: Create branch.c/.h for common branch functions Jin Yao <yao.jin@linux.intel.com> - 2017-07-17 05:20 +0200
[PATCH v9 7/7] perf report: Show branch type in callchain entry Jin Yao <yao.jin@linux.intel.com> - 2017-07-17 05:20 +0200
[PATCH v9 2/7] perf/x86/intel: Record branch type Jin Yao <yao.jin@linux.intel.com> - 2017-07-17 05:20 +0200
Re: [PATCH v9 2/7] perf/x86/intel: Record branch type Jiri Olsa <jolsa@redhat.com> - 2017-07-17 10:20 +0200
Re: [PATCH v9 2/7] perf/x86/intel: Record branch type "Jin, Yao" <yao.jin@linux.intel.com> - 2017-07-17 10:30 +0200
Re: [PATCH v9 2/7] perf/x86/intel: Record branch type Peter Zijlstra <peterz@infradead.org> - 2017-07-18 11:30 +0200
[PATCH v9 4/7] perf report: Refactor the branch info printing code Jin Yao <yao.jin@linux.intel.com> - 2017-07-17 05:20 +0200
[PATCH v9 3/7] perf record: Create a new option save_type in --branch-filter Jin Yao <yao.jin@linux.intel.com> - 2017-07-17 05:20 +0200
[PATCH v9 1/7] perf/core: Define the common branch type classification Jin Yao <yao.jin@linux.intel.com> - 2017-07-17 05:20 +0200
Re: [PATCH v9 0/7] perf report: Show branch type Jiri Olsa <jolsa@redhat.com> - 2017-07-17 10:20 +0200
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