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Message-ID: <20150424203353.GE650@kernel.org> Date: Fri, 24 Apr 2015 17:33:53 -0300 From: Arnaldo Carvalho de Melo <acme@...nel.org> To: Adrian Hunter <adrian.hunter@...el.com> Cc: Peter Zijlstra <peterz@...radead.org>, linux-kernel@...r.kernel.org, David Ahern <dsahern@...il.com>, Frederic Weisbecker <fweisbec@...il.com>, Jiri Olsa <jolsa@...hat.com>, Namhyung Kim <namhyung@...il.com>, Stephane Eranian <eranian@...gle.com> Subject: Re: [PATCH V3 00/25] perf tools: Introduce an abstraction for AUX Area and Instruction Tracing Em Fri, Apr 24, 2015 at 10:29:42PM +0300, Adrian Hunter escreveu: > Hi > > Here is V3 patches for the introduction of an abstraction for > using the AUX area and Instruction tracing. > > The patches can also be found here: > > http://git.infradead.org/users/ahunter/linux-perf.git > > An example perf.data file and build id archive can be found here: > > http://git.infradead.org/~ahunter/tfr/ > > There is also a tar of the 3 most relevant files with debugging > symbols. These need to be placed in under the correct paths in > /usr/lib/debug to get symbols. Thanks a lot for making those files available, I'll try and push a first batch from what is in perf/core by now, the try those files, and then apply some more, hopefully finishing the outstanding ones over the weekend. - Arnaldo > Changes in V3: > > New patch: > perf tools: Amend mmap ref counting for the AUX area mmap > > Move some code under arch: > perf tools: Add Intel PT support > perf tools: Add Intel BTS support > > Updated documentation: > perf report: Add Instruction Tracing support > perf auxtrace: Add option to synthesize events for transactions > perf tools: Take Intel PT into use > perf tools: Add Intel BTS support > > Patches already applied: > perf header: Add AUX area tracing feature > perf evlist: Add support for mmapping an AUX area buffer > perf tools: Add user events for AUX area tracing > perf tools: Add support for AUX area recording > perf record: Add basic AUX area tracing support > perf record: Extend -m option for AUX area tracing mmap pages > perf tools: Add a user event for AUX area tracing errors > perf session: Add hooks to allow transparent decoding of AUX area tracing data > perf session: Add instruction tracing options > perf auxtrace: Add helpers for AUX area tracing errors > perf auxtrace: Add helpers for queuing AUX area tracing data > perf auxtrace: Add a heap for sorting AUX area tracing queues > perf auxtrace: Add processing for AUX area tracing events > perf auxtrace: Add a hashtable for caching > perf tools: Add member to struct dso for an instruction cache > perf script: Add Instruction Tracing support > perf inject: Re-pipe AUX area tracing events > perf inject: Add Instruction Tracing support > perf script: Add field option 'flags' to print sample flags > perf tools: Add aux_watermark member of struct perf_event_attr > > Changes in V2: > > Get rid of MIN() > perf auxtrace: Add helpers for AUX area tracing errors > perf inject: Re-pipe AUX area tracing events > perf tools: Add build option NO_AUXTRACE to exclude AUX area tracing > > > Intel BTS can be used on most recent Intel CPUs. Intel PT > is available on Broadwell. > > Examples: > > Trace 'ls' with Intel BTS userspace only > > perf record --per-thread -e intel_bts//u ls > perf report > perf script > > Trace 'ls' with Intel BTS kernel and userspace > > ~/libexec/perf-core/perf-with-kcore record bts-ls --per-thread -e intel_bts// -- ls > ~/libexec/perf-core/perf-with-kcore report bts-ls > ~/libexec/perf-core/perf-with-kcore script bts-ls > > Trace 'ls' with Intel PT userspace only > > perf record -e intel_pt//u ls > perf report > perf script > > Trace 'ls' with Intel PT kernel and userspace > > ~/libexec/perf-core/perf-with-kcore record pt-ls -e intel_pt// -- ls > ~/libexec/perf-core/perf-with-kcore report pt-ls > ~/libexec/perf-core/perf-with-kcore script pt-ls > > > The abstraction has two separate aspects: > 1. recording AUX area data > 2. processing AUX area data > > Recording consists of mmapping a separate buffer and copying > the data into the perf.data file. The buffer is an AUX area > buffer. The data is written preceded by a new user event > PERF_RECORD_AUXTRACE. The data is too big to fit in the event > but follows immediately afterward. Session processing has to > skip to get to the next event header in a similar fashion to > the existing PERF_RECORD_HEADER_TRACING_DATA > event. The main recording patches are: > > perf evlist: Add support for mmapping an AUX area buffer > perf tools: Add user events for AUX area tracing > perf tools: Add support for AUX area recording > perf record: Add basic AUX area tracing support > > Processing consists of providing hooks in session processing > to enable a decoder to see all the events and deliver synthesized > events transparently into the event stream. The main processing > patch is: > > perf session: Add hooks to allow transparent decoding of AUX area tracing data > > > Adrian Hunter (25): > perf tools: Amend mmap ref counting for the AUX area mmap > perf script: Always allow fields 'addr' and 'cpu' for auxtrace > perf report: Add Instruction Tracing support > perf tools: Add AUX area tracing index > perf tools: Hit all build ids when AUX area tracing > perf tools: Add build option NO_AUXTRACE to exclude AUX area tracing > perf auxtrace: Add option to synthesize events for transactions > perf tools: Add support for PERF_RECORD_AUX > perf tools: Add support for PERF_RECORD_ITRACE_START > perf tools: Add AUX area tracing Snapshot Mode > perf record: Add AUX area tracing Snapshot Mode support > perf auxtrace: Add Intel PT as an AUX area tracing type > perf tools: Add Intel PT packet decoder > perf tools: Add Intel PT instruction decoder > perf tools: Add Intel PT log > perf tools: Add Intel PT decoder > perf tools: Add Intel PT support > perf tools: Take Intel PT into use > perf tools: Allow auxtrace data alignment > perf tools: Add Intel BTS support > perf tools: Output sample flags and insn_len from intel_pt > perf tools: Output sample flags and insn_len from intel_bts > perf tools: Intel PT to always update thread stack trace number > perf tools: Intel BTS to always update thread stack trace number > perf tools: Add example call-graph script > > tools/build/Makefile.build | 2 + > tools/perf/.gitignore | 2 + > tools/perf/Documentation/intel-bts.txt | 69 + > tools/perf/Documentation/intel-pt.txt | 467 +++++ > tools/perf/Documentation/perf-inject.txt | 9 +- > tools/perf/Documentation/perf-record.txt | 7 + > tools/perf/Documentation/perf-report.txt | 28 + > tools/perf/Documentation/perf-script.txt | 9 +- > tools/perf/Makefile.perf | 8 +- > tools/perf/arch/x86/util/Build | 5 + > tools/perf/arch/x86/util/auxtrace.c | 83 + > tools/perf/arch/x86/util/intel-bts.c | 458 +++++ > tools/perf/arch/x86/util/intel-pt.c | 752 ++++++++ > tools/perf/arch/x86/util/pmu.c | 15 + > tools/perf/builtin-buildid-list.c | 9 + > tools/perf/builtin-inject.c | 78 +- > tools/perf/builtin-record.c | 172 +- > tools/perf/builtin-report.c | 11 + > tools/perf/builtin-script.c | 29 +- > tools/perf/config/Makefile | 5 + > tools/perf/perf.h | 3 + > .../scripts/python/call-graph-from-postgresql.py | 285 +++ > tools/perf/tests/make | 2 + > tools/perf/util/Build | 5 +- > tools/perf/util/auxtrace.c | 322 +++- > tools/perf/util/auxtrace.h | 220 +++ > tools/perf/util/event.c | 39 + > tools/perf/util/event.h | 24 + > tools/perf/util/evlist.c | 2 +- > tools/perf/util/header.c | 31 +- > tools/perf/util/intel-bts.c | 919 ++++++++++ > tools/perf/util/intel-bts.h | 43 + > tools/perf/util/intel-pt-decoder/Build | 14 + > .../perf/util/intel-pt-decoder/intel-pt-decoder.c | 1738 ++++++++++++++++++ > .../perf/util/intel-pt-decoder/intel-pt-decoder.h | 89 + > .../util/intel-pt-decoder/intel-pt-insn-decoder.c | 246 +++ > .../util/intel-pt-decoder/intel-pt-insn-decoder.h | 65 + > tools/perf/util/intel-pt-decoder/intel-pt-log.c | 155 ++ > tools/perf/util/intel-pt-decoder/intel-pt-log.h | 52 + > .../util/intel-pt-decoder/intel-pt-pkt-decoder.c | 400 +++++ > .../util/intel-pt-decoder/intel-pt-pkt-decoder.h | 64 + > tools/perf/util/intel-pt.c | 1897 ++++++++++++++++++++ > tools/perf/util/intel-pt.h | 57 + > tools/perf/util/machine.c | 21 + > tools/perf/util/machine.h | 4 + > tools/perf/util/parse-options.h | 4 + > tools/perf/util/session.c | 32 + > tools/perf/util/session.h | 1 + > tools/perf/util/tool.h | 2 + > 49 files changed, 8882 insertions(+), 72 deletions(-) > create mode 100644 tools/perf/Documentation/intel-bts.txt > create mode 100644 tools/perf/Documentation/intel-pt.txt > create mode 100644 tools/perf/arch/x86/util/auxtrace.c > create mode 100644 tools/perf/arch/x86/util/intel-bts.c > create mode 100644 tools/perf/arch/x86/util/intel-pt.c > create mode 100644 tools/perf/arch/x86/util/pmu.c > create mode 100644 tools/perf/scripts/python/call-graph-from-postgresql.py > create mode 100644 tools/perf/util/intel-bts.c > create mode 100644 tools/perf/util/intel-bts.h > create mode 100644 tools/perf/util/intel-pt-decoder/Build > create mode 100644 tools/perf/util/intel-pt-decoder/intel-pt-decoder.c > create mode 100644 tools/perf/util/intel-pt-decoder/intel-pt-decoder.h > create mode 100644 tools/perf/util/intel-pt-decoder/intel-pt-insn-decoder.c > create mode 100644 tools/perf/util/intel-pt-decoder/intel-pt-insn-decoder.h > create mode 100644 tools/perf/util/intel-pt-decoder/intel-pt-log.c > create mode 100644 tools/perf/util/intel-pt-decoder/intel-pt-log.h > create mode 100644 tools/perf/util/intel-pt-decoder/intel-pt-pkt-decoder.c > create mode 100644 tools/perf/util/intel-pt-decoder/intel-pt-pkt-decoder.h > create mode 100644 tools/perf/util/intel-pt.c > create mode 100644 tools/perf/util/intel-pt.h > > > Regards > Adrian -- To unsubscribe from this list: send the line 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