diff options
Diffstat (limited to 'tools/perf/Documentation/perf-list.txt')
| -rw-r--r-- | tools/perf/Documentation/perf-list.txt | 29 |
1 files changed, 24 insertions, 5 deletions
diff --git a/tools/perf/Documentation/perf-list.txt b/tools/perf/Documentation/perf-list.txt index d0c65fad419a..a4378a0cd914 100644 --- a/tools/perf/Documentation/perf-list.txt +++ b/tools/perf/Documentation/perf-list.txt @@ -27,7 +27,7 @@ Don't print descriptions. -v:: --long-desc:: -Print longer event descriptions. +Print longer event descriptions and all similar PMUs with alphanumeric suffixes. --debug:: Enable debugging output. @@ -73,6 +73,7 @@ counted. The following modifiers exist: e - group or event are exclusive and do not share the PMU b - use BPF aggregration (see perf stat --bpf-counters) R - retire latency value of the event + X - don't regroup the event to match PMUs The 'p' modifier can be used for specifying how precise the instruction address should be. The 'p' modifier can be specified multiple times: @@ -188,7 +189,7 @@ in the CPU vendor specific documentation. The available PMUs and their raw parameters can be listed with - ls /sys/devices/*/format + ls /sys/bus/event_source/devices/*/format For example the raw event "LSD.UOPS" core pmu event above could be specified as @@ -278,17 +279,33 @@ also be supplied. For example: perf stat -C 0 -e 'hv_gpci/dtbp_ptitc,phys_processor_idx=0x2/' ... -EVENT QUALIFIERS: +EVENT QUALIFIERS +---------------- It is also possible to add extra qualifiers to an event: percore: -Sums up the event counts for all hardware threads in a core, e.g.: + Sums up the event counts for all hardware threads in a core, e.g.: + perf stat -e cpu/event=0,umask=0x3,percore=1/ +cpu: - perf stat -e cpu/event=0,umask=0x3,percore=1/ + Specifies a CPU or a range of CPUs to open the event upon. It may + also reference a PMU to copy the CPU mask from. The value may be + repeated to specify opening the event on multiple CPUs. + Example 1: to open the instructions event on CPUs 0 and 2, the + cycles event on CPUs 1 and 2: + perf stat -e instructions/cpu=0,cpu=2/,cycles/cpu=1-2/ -a sleep 1 + + Example 2: to open the data_read uncore event on CPU 0 and the + data_write uncore event on CPU 1: + perf stat -e data_read/cpu=0/,data_write/cpu=1/ -a sleep 1 + + Example 3: to open the software msr/tsc/ event only on the CPUs + matching those from the cpu_core PMU: + perf stat -e msr/tsc,cpu=cpu_core/ -a sleep 1 EVENT GROUPS ------------ @@ -376,6 +393,8 @@ Support raw format: . '--raw-dump [hw|sw|cache|tracepoint|pmu|event_glob]', shows the raw-dump of a certain kind of events. +include::intel-acr.txt[] + SEE ALSO -------- linkperf:perf-stat[1], linkperf:perf-top[1], |