Messages in this thread | | | Date | Thu, 11 Aug 2022 19:25:35 -0300 | From | Arnaldo Carvalho de Melo <> | Subject | Re: [PATCH v6 00/15] perf c2c: Support data source and display for Arm64 |
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Em Thu, Aug 11, 2022 at 02:24:36PM +0800, Leo Yan escreveu: > 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/
So, I tentatively applied this set after applying the patch for <asm/sysreg.h>, and its all now out in tmp.perf/core in my git tree, please check.
I'm doing the usual set of container build tests, but any additional checking, including on the committer note I added to the first patch in this series, claryfing it is not really a "sync" with the kernel headers, is more than welcome.
- Arnaldo
> 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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- Arnaldo
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