diff options
Diffstat (limited to 'tools/perf/Documentation/perf-record.txt')
| -rw-r--r-- | tools/perf/Documentation/perf-record.txt | 17 |
1 files changed, 2 insertions, 15 deletions
diff --git a/tools/perf/Documentation/perf-record.txt b/tools/perf/Documentation/perf-record.txt index 43b42c4..ca0d3d9 100644 --- a/tools/perf/Documentation/perf-record.txt +++ b/tools/perf/Documentation/perf-record.txt @@ -87,9 +87,7 @@ OPTIONS -m:: --mmap-pages=:: - Number of mmap data pages (must be a power of two) or size - specification with appended unit character - B/K/M/G. The - size is rounded up to have nearest pages power of two value. + Number of mmap data pages. Must be a power of two. -g:: Enables call-graph (stack chain/backtrace) recording. @@ -180,9 +178,6 @@ following filters are defined: - u: only when the branch target is at the user level - k: only when the branch target is in the kernel - hv: only when the target is at the hypervisor level - - in_tx: only when the target is in a hardware transaction - - no_tx: only when the target is not in a hardware transaction - - abort_tx: only when the target is a hardware transaction abort + The option requires at least one branch type among any, any_call, any_ret, ind_call. @@ -193,20 +188,12 @@ is enabled for all the sampling events. The sampled branch type is the same for The various filters must be specified as a comma separated list: --branch-filter any_ret,u,k Note that this feature may not be available on all processors. +-W:: --weight:: Enable weightened sampling. An additional weight is recorded per sample and can be displayed with the weight and local_weight sort keys. This currently works for TSX abort events and some memory events in precise mode on modern Intel CPUs. ---transaction:: -Record transaction flags for transaction related events. - ---force-per-cpu:: -Force the use of per-cpu mmaps. By default, when tasks are specified (i.e. -p, --t or -u options) per-thread mmaps are created. This option overrides that and -forces per-cpu mmaps. A side-effect of that is that inheritance is -automatically enabled. Add the -i option also to disable inheritance. - SEE ALSO -------- linkperf:perf-stat[1], linkperf:perf-list[1] |