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Build ----- * Build each directory as a library so that depedency check for the python extension module can be automatic. But it also introduces some trivial merge conflicts with other trees that touched perf tools codes. Basically it changes perf-y to perf-util-y or similar and you can find the resolution in the perf-next tree here. - https://lore.kernel.org/r/Zn8HeRRX3JV2IcxQ@sirena.org.uk - https://lore.kernel.org/r/20240709100536.238f4d12@canb.auug.org.au * Use pkg-config to check libtraceevent and libtracefs. perf sched ---------- * Add --task-name and --fuzzy-name options for `perf sched map`. It's to focus on selected tasks only by removing unrelated tasks in the output. It matches the task comm with the given string and the --fuzzy-name option allows the partial matching. $ sudo perf sched record -a sleep 1 $ sudo perf sched map --task-name kworker --fuzzy-name . . . . - *A0 . . 481065.315131 secs A0 => kworker/5:2-i91:438521 . . . . - *- . . 481065.315160 secs *B0 . . . - . . . 481065.316435 secs B0 => kworker/0:0-i91:437860 *- . . . . . . . 481065.316441 secs . . . . . *A0 . . 481065.318703 secs . . . . . *- . . 481065.318717 secs . . *C0 . . . . . 481065.320544 secs C0 => kworker/u16:30-:430186 . . *- . . . . . 481065.320555 secs . . *D0 . . . . . 481065.328524 secs D0 => kworker/2:0-kdm:429654 *B0 . D0 . - . . . 481065.328527 secs *- . D0 . - . . . 481065.328535 secs . . *- . . . . . 481065.328535 secs * Fix -r/--repeat option of perf sched replay. The documentation said -1 will work as infinity but it didn't accept the value. Update the code and document to use 0 instead. * Fix perf sched timehist to account the delay time for preempted tasks. Perf event filtering -------------------- * perf top gained filtering support on regular events using BPF like perf record. Previously it was able to use it for tracepoints only. * The BPF filter now supports filtering by UID/GID. This should be preferred than -u <UID> option as it's racy to scan /proc to check tasks for the user and fails to open an event for the task if it's already gone. $ sudo perf top -e cycles --filter "uid == $(id -u)" perf report ----------- * Skip dummy events in the group output by default. The --skip-empty option controls display of empty events without samples. But perf report can force display all events in a group. In this case, auto- added a dummy event (for a system-wide record) ends up in the output. Now it can skip those empty events even in the group display mode. To preserve the old behavior, run this: $ perf report --group --no-skip-empty perf stat --------- * Choose the most disaggregate option when multiple aggregation options are given. It used to pick the last option in the command line but it can be confusing and not consistent. Now it'll choose the smallest unit. For example, it'd aggregate the result per-core when the user gave both --per-socket and --per-core options at the same time. Internals --------- * Fix `perf bench` when some CPUs are offline. * Fix handling of JIT symbol mappings to accept "/tmp/perf-${PID}.map patterns only so that it can not be confused by other /tmp/perf-* files. * Many improvements and fixes for `perf test`. Others ------ * Support some new instructions for Intel-PT. * Fix syscall ID mapping in perf trace. * Document AMD IBS PMU usages. * Change `perf lock info` to show map and thread info by default. Vendor JSON events ------------------ * Update Intel events and metrics * Add i.MX9[35] DDR metrics Signed-off-by: Namhyung Kim <namhyung@kernel.org> -----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQSo2x5BnqMqsoHtzsmMstVUGiXMgwUCZpbe+QAKCRCMstVUGiXM g4X6AQCXJ+eCuBy/9IvDpo86KjemPQk/brA0X8Ufi7JCd+Vj4QD7BvDobClewn+v W3MhNQwIlFPJ8u3Act+tJZfUJjVF4wU= =ZkPv -----END PGP SIGNATURE----- Merge tag 'perf-tools-for-v6.11-2024-07-16' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools Pull perf tools updates from Namhyung Kim: "Build: - Build each directory as a library so that depedency check for the python extension module can be automatic - Use pkg-config to check libtraceevent and libtracefs perf sched: - Add --task-name and --fuzzy-name options for `perf sched map` It focuses on selected tasks only by removing unrelated tasks in the output. It matches the task comm with the given string and the --fuzzy-name option allows the partial matching: $ sudo perf sched record -a sleep 1 $ sudo perf sched map --task-name kworker --fuzzy-name . . . . - *A0 . . 481065.315131 secs A0 => kworker/5:2-i91:438521 . . . . - *- . . 481065.315160 secs *B0 . . . - . . . 481065.316435 secs B0 => kworker/0:0-i91:437860 *- . . . . . . . 481065.316441 secs . . . . . *A0 . . 481065.318703 secs . . . . . *- . . 481065.318717 secs . . *C0 . . . . . 481065.320544 secs C0 => kworker/u16:30-:430186 . . *- . . . . . 481065.320555 secs . . *D0 . . . . . 481065.328524 secs D0 => kworker/2:0-kdm:429654 *B0 . D0 . - . . . 481065.328527 secs *- . D0 . - . . . 481065.328535 secs . . *- . . . . . 481065.328535 secs - Fix -r/--repeat option of perf sched replay The documentation said -1 will work as infinity but it didn't accept the value. Update the code and document to use 0 instead - Fix perf sched timehist to account the delay time for preempted tasks Perf event filtering: - perf top gained filtering support on regular events using BPF like perf record. Previously it was able to use it for tracepoints only - The BPF filter now supports filtering by UID/GID. This should be preferred than -u <UID> option as it's racy to scan /proc to check tasks for the user and fails to open an event for the task if it's already gone $ sudo perf top -e cycles --filter "uid == $(id -u)" perf report: - Skip dummy events in the group output by default. The --skip-empty option controls display of empty events without samples. But perf report can force display all events in a group In this case, auto-added a dummy event (for a system-wide record) ends up in the output. Now it can skip those empty events even in the group display mode To preserve the old behavior, run this: $ perf report --group --no-skip-empty perf stat: - Choose the most disaggregate option when multiple aggregation options are given. It used to pick the last option in the command line but it can be confusing and not consistent. Now it'll choose the smallest unit For example, it'd aggregate the result per-core when the user gave both --per-socket and --per-core options at the same time Internals: - Fix `perf bench` when some CPUs are offline - Fix handling of JIT symbol mappings to accept "/tmp/perf-${PID}.map patterns only so that it can not be confused by other /tmp/perf-* files - Many improvements and fixes for `perf test` Others: - Support some new instructions for Intel-PT - Fix syscall ID mapping in perf trace - Document AMD IBS PMU usages - Change `perf lock info` to show map and thread info by default Vendor JSON events: - Update Intel events and metrics - Add i.MX9[35] DDR metrics" * tag 'perf-tools-for-v6.11-2024-07-16' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools: (125 commits) perf trace: Fix iteration of syscall ids in syscalltbl->entries perf dso: Fix address sanitizer build perf mem: Warn if memory events are not supported on all CPUs perf arm-spe: Support multiple Arm SPE PMUs perf build x86: Fix SC2034 error in syscalltbl.sh perf record: Fix memset out-of-range error perf sched map: Add --fuzzy-name option for fuzzy matching in task names perf sched map: Add support for multiple task names using CSV perf sched map: Add task-name option to filter the output map perf build: Conditionally add feature check flags for libtrace{event,fs} perf install: Don't propagate subdir to Documentation submake perf vendor events arm64:: Add i.MX95 DDR Performance Monitor metrics perf vendor events arm64:: Add i.MX93 DDR Performance Monitor metrics perf dsos: When adding a dso into sorted dsos maintain the sort order perf comm str: Avoid sort during insert perf report: Calling available function for stats printing perf intel-pt: Fix exclude_guest setting perf intel-pt: Fix aux_watermark calculation for 64-bit size perf sched replay: Fix -r/--repeat command line option for infinity perf: pmus: Remove unneeded semicolon ... |
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