diff options
| author | Anshuman Khandual <anshuman.khandual@arm.com> | 2022-12-05 12:14:43 +0530 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2022-12-14 11:16:12 -0300 |
| commit | 955f6def5590ce6ca11a1c1ced0d2d1c95421059 (patch) | |
| tree | 853043217626705de22961775c7d5d6ff3edab02 /tools/perf/Documentation | |
| parent | 3c97d25ceb75fd3e660ba9fcd4c630d0b057a5a2 (diff) | |
| download | linux-955f6def5590ce6ca11a1c1ced0d2d1c95421059.tar.bz2 | |
perf record: Add remaining branch filters: "no_cycles", "no_flags" & "hw_index"
This adds all remaining branch filters i.e "no_cycles", "no_flags" and
"hw_index". While here, also updates the documentation.
Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: James Clark <james.clark@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/20221205064443.533587-1-anshuman.khandual@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/Documentation')
| -rw-r--r-- | tools/perf/Documentation/perf-record.txt | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/tools/perf/Documentation/perf-record.txt b/tools/perf/Documentation/perf-record.txt index 9ea6d44aca58..5f9fa07b3dde 100644 --- a/tools/perf/Documentation/perf-record.txt +++ b/tools/perf/Documentation/perf-record.txt @@ -388,6 +388,7 @@ following filters are defined: - any_call: any function call or system call - any_ret: any function return or system call return - ind_call: any indirect branch + - ind_jmp: any indirect jump - call: direct calls, including far (to/from kernel) calls - u: only when the branch target is at the user level - k: only when the branch target is in the kernel @@ -396,6 +397,10 @@ 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 + - call_stack: save call stack + - no_flags: don't save branch flags e.g prediction, misprediction etc + - no_cycles: don't save branch cycles + - hw_index: save branch hardware index - save_type: save branch type during sampling in case binary is not available later For the platforms with Intel Arch LBR support (12th-Gen+ client or 4th-Gen Xeon+ server), the save branch type is unconditionally enabled |