From 8ac6c7a54ed1b98d142dce24b11c6de6a1e239a5 Mon Sep 17 00:00:00 2001 From: hc <hc@nodka.com> Date: Tue, 22 Oct 2024 10:36:11 +0000 Subject: [PATCH] 修改4g拨号为QMI,需要在系统里后台执行quectel-CM --- kernel/tools/perf/Documentation/perf-list.txt | 28 ++++++++++++++++++++++++++-- 1 files changed, 26 insertions(+), 2 deletions(-) diff --git a/kernel/tools/perf/Documentation/perf-list.txt b/kernel/tools/perf/Documentation/perf-list.txt index 236b9b9..4c7db1d 100644 --- a/kernel/tools/perf/Documentation/perf-list.txt +++ b/kernel/tools/perf/Documentation/perf-list.txt @@ -36,6 +36,9 @@ Print how named events are resolved internally into perf events, and also any extra expressions computed by perf stat. +--deprecated:: +Print deprecated events. By default the deprecated events are hidden. + [[EVENT_MODIFIERS]] EVENT MODIFIERS --------------- @@ -55,7 +58,7 @@ S - read sample value (PERF_SAMPLE_READ) D - pin the event to the PMU W - group is weak and will fallback to non-group if not schedulable, - only supported in 'perf stat' for now. + e - group or event are exclusive and do not share the PMU The 'p' modifier can be used for specifying how precise the instruction address should be. The 'p' modifier can be specified multiple times: @@ -112,6 +115,12 @@ perf stat -e r1a8 -a sleep 1 perf record -e r1a8 ... + +It's also possible to use pmu syntax: + + perf record -e r1a8 -a sleep 1 + perf record -e cpu/r1a8/ ... + perf record -e cpu/r0x1a8/ ... You should refer to the processor specific documentation for getting these details. Some of them are referenced in the SEE ALSO section below. @@ -173,7 +182,7 @@ Other PMUs and global measurements are normally root only. Some event qualifiers, such as "any", are also root only. -This can be overriden by setting the kernel.perf_event_paranoid +This can be overridden by setting the kernel.perf_event_paranoid sysctl to -1, which allows non root to use these events. For accessing trace point events perf needs to have read access to @@ -199,6 +208,18 @@ also be supplied. For example: perf stat -C 0 -e 'hv_gpci/dtbp_ptitc,phys_processor_idx=0x2/' ... + +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.: + + + perf stat -e cpu/event=0,umask=0x3,percore=1/ + EVENT GROUPS ------------ @@ -244,6 +265,9 @@ the first event (the leader) samples, and it only reads the values of the other events in the group. +However, in the case AUX area events (e.g. Intel PT or CoreSight), the AUX +area event must be the leader, so then the second event samples, not the first. + OPTIONS ------- -- Gitblit v1.6.2