Hi
Here are patches for the introduction of an abstraction for
using the AUX area and Instruction tracing. This patch
set now include support for Intel PT / Intel BTS.
The first 25 patches have been sent before and some have
Jiri's acks. One patch that Jiri acked "perf evlist: Add
support for mmapping an AUX area buffer" has been since
modified slightly so I dropped the ack.
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 (44):
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 script: Always allow fields 'addr' and 'cpu' for auxtrace
perf report: Add Instruction Tracing support
perf inject: Re-pipe AUX area tracing events
perf inject: 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 script: Add field option 'flags' to print sample flags
perf tools: Add aux_watermark member of struct perf_event_attr
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 | 67 +
tools/perf/Documentation/intel-pt.txt | 537 ++++
tools/perf/Documentation/perf-inject.txt | 27 +
tools/perf/Documentation/perf-record.txt | 9 +
tools/perf/Documentation/perf-report.txt | 29 +
tools/perf/Documentation/perf-script.txt | 38 +-
tools/perf/Makefile.perf | 8 +-
tools/perf/arch/x86/util/Build | 3 +
tools/perf/arch/x86/util/auxtrace.c | 82 +
tools/perf/arch/x86/util/pmu.c | 15 +
tools/perf/builtin-buildid-list.c | 9 +
tools/perf/builtin-inject.c | 174 +-
tools/perf/builtin-record.c | 270 +-
tools/perf/builtin-report.c | 11 +
tools/perf/builtin-script.c | 74 +-
tools/perf/config/Makefile | 5 +
tools/perf/perf.h | 5 +
.../scripts/python/call-graph-from-postgresql.py | 285 +++
tools/perf/tests/make | 2 +
tools/perf/util/Build | 4 +
tools/perf/util/auxtrace.c | 1362 ++++++++++
tools/perf/util/auxtrace.h | 646 +++++
tools/perf/util/dso.c | 2 +
tools/perf/util/dso.h | 3 +
tools/perf/util/event.c | 42 +
tools/perf/util/event.h | 70 +
tools/perf/util/evlist.c | 71 +-
tools/perf/util/evlist.h | 6 +
tools/perf/util/evsel.c | 1 +
tools/perf/util/header.c | 37 +
tools/perf/util/header.h | 1 +
tools/perf/util/intel-bts.c | 1353 ++++++++++
tools/perf/util/intel-bts.h | 31 +
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 | 2637 ++++++++++++++++++++
tools/perf/util/intel-pt.h | 35 +
tools/perf/util/machine.c | 21 +
tools/perf/util/machine.h | 4 +
tools/perf/util/parse-options.h | 4 +
tools/perf/util/record.c | 11 +-
tools/perf/util/session.c | 184 +-
tools/perf/util/session.h | 6 +
tools/perf/util/tool.h | 12 +-
53 files changed, 10971 insertions(+), 49 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/pmu.c
create mode 100644 tools/perf/scripts/python/call-graph-from-postgresql.py
create mode 100644 tools/perf/util/auxtrace.c
create mode 100644 tools/perf/util/auxtrace.h
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 "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
