Messages in this thread | | | Date | Tue, 17 May 2022 18:20:03 -0300 | From | Arnaldo Carvalho de Melo <> | Subject | Re: [PATCH v8 0/4] perf: arm-spe: Decode SPE source and use for perf c2c |
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Em Tue, May 17, 2022 at 02:03:21AM +0000, Ali Saidi escreveu: > When synthesizing data from SPE, augment the type with source information > for Arm Neoverse cores so we can detect situtions like cache line > contention and transfers on Arm platforms. > > This changes enables future changes to c2c on a system with SPE where lines that > are shared among multiple cores show up in perf c2c output. > > Changes is v9: > * Change reporting of remote socket data which should make Leo's upcomping > patch set for c2c make sense on multi-socket platforms
Hey,
Joe Mario, who is one of 'perf c2c' authors asked me about some git tree he could clone from for both building the kernel and tools/perf/ so that he could do tests, can you please provide that?
thanks!
- Arnaldo > Changes in v8: > * Report NA for both mem_lvl and mem_lvl_num for stores where we have no > information > > Changes in v7: > * Minor change requested by Leo Yan > > Changes in v6: > * Drop changes to c2c command which will come from Leo Yan > > Changes in v5: > * Add a new snooping type to disambiguate cache-to-cache transfers where > we don't know if the data is clean or dirty. > * Set snoop flags on all the data-source cases > * Special case stores as we have no information on them > > Changes in v4: > * Bring-in the kernel's arch/arm64/include/asm/cputype.h into tools/ > * Add neoverse-v1 to the neoverse cores list > > Ali Saidi (4): > tools: arm64: Import cputype.h > perf arm-spe: Use SPE data source for neoverse cores > perf mem: Support mem_lvl_num in c2c command > perf mem: Support HITM for when mem_lvl_num is any > > tools/arch/arm64/include/asm/cputype.h | 258 ++++++++++++++++++ > .../util/arm-spe-decoder/arm-spe-decoder.c | 1 + > .../util/arm-spe-decoder/arm-spe-decoder.h | 12 + > tools/perf/util/arm-spe.c | 110 +++++++- > tools/perf/util/mem-events.c | 20 +- > 5 files changed, 383 insertions(+), 18 deletions(-) > create mode 100644 tools/arch/arm64/include/asm/cputype.h > > -- > 2.32.0
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- Arnaldo
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