Messages in this thread | | | From | Leo Yan <> | Subject | [PATCH v6 00/15] perf c2c: Support data source and display for Arm64 | Date | Thu, 11 Aug 2022 14:24:36 +0800 |
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Arm64 Neoverse CPUs supports data source in Arm SPE trace, this allows us to detect cache line contention and transfers.
This patch set has been rebased on the acme/perf/core branch with the latest commit b39c9e1b101d ("perf machine: Fix missing free of machine->kallsyms_filename").
To make building success, a compilation fixing commit [1] has been sent to LKML, this patch set is dependent on it. This patch set has been verified for both x86 perf memory events and Arm SPE events.
[1] https://lore.kernel.org/lkml/20220811044341.426796-1-leo.yan@linaro.org/
Changes from v5: * Removed the patch "perf: Add SNOOP_PEER flag to perf mem data struct" (Arnaldo); * Removed the patch "perf arm-spe: Don't set data source if it's not a memory operation" which has been merged in the mainline kernel, so can dismiss merging conflict. * Rebased on the latest acme perf/core branch, no any code change compared to previous version.
Changes from v4: * Included Ali's patch set for adding data source in Arm SPE samples; * Added Ian's ACK and Ali's review and test tags; * Update document for the default peer dispaly for Arm64 (Ali).
Changes from v3: * Changed to display remote and local peer accesses (Joe); * Fixed the usage info for display types (Joe); * Do not display HITM dimensions when use 'peer' display, and HITM display doesn't show any 'peer' dimensions (James); * Split to smaller patches for adding dimensions of peer operations; * Updated documentation to reflect the latest GUI and stdio.
Ali Saidi (2): perf tools: sync addition of PERF_MEM_SNOOPX_PEER perf arm-spe: Use SPE data source for neoverse cores
Leo Yan (13): perf mem: Print snoop peer flag perf mem: Add statistics for peer snooping perf c2c: Output statistics for peer snooping perf c2c: Add dimensions for peer load operations perf c2c: Add dimensions of peer metrics for cache line view perf c2c: Add mean dimensions for peer operations perf c2c: Use explicit names for display macros perf c2c: Rename dimension from 'percent_hitm' to 'percent_costly_snoop' perf c2c: Refactor node header perf c2c: Refactor display string perf c2c: Sort on peer snooping for load operations perf c2c: Use 'peer' as default display for Arm64 perf c2c: Update documentation for new display option 'peer'
tools/include/uapi/linux/perf_event.h | 2 +- tools/perf/Documentation/perf-c2c.txt | 31 +- tools/perf/builtin-c2c.c | 454 ++++++++++++++---- .../util/arm-spe-decoder/arm-spe-decoder.c | 1 + .../util/arm-spe-decoder/arm-spe-decoder.h | 12 + tools/perf/util/arm-spe.c | 130 ++++- tools/perf/util/mem-events.c | 46 +- tools/perf/util/mem-events.h | 3 + 8 files changed, 547 insertions(+), 132 deletions(-)
-- 2.34.1
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