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Date: Thu, 30 Apr 2015 17:37:23 +0300
From: Adrian Hunter <adrian.hunter@...el.com>
To: Arnaldo Carvalho de Melo <acme@...nel.org>
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: [PATCH V4 00/24] perf tools: Introduce an abstraction for AUX Area and Instruction Tracing
Hi
Here is V4 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 (unchanged from V3) 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.
Changes on V4:
perf tools: Amend mmap ref counting for the AUX area mmap
Dropped because already applied
perf script: Always allow fields 'addr' and 'cpu' for auxtrace
Dropped because already applied
perf report: Add Instruction Tracing support
Dropped because already applied
perf report: Fix placement of itrace option in documentation
New patch
perf tools: Add AUX area tracing index
Change size checks for more flexibility i.e.
- don't mind if an indexed auxtrace_event is bigger than
struct auxtrace_event
- don't mind if the auxtrace index does not fill the whole
file section
Rename 'index' variable to 'ent' to avoid build errors on
older gcc
perf tools: Add build option NO_AUXTRACE to exclude AUX area tracing
Fix whitespace alignment of NO_AUXTRACE=1
Add NO_AUXTRACE=1 to make_minimal
perf tools: Add support for PERF_RECORD_AUX
Expand commit message
perf tools: Add AUX area tracing Snapshot Mode
Whitespace fixups
perf record: Add AUX area tracing Snapshot Mode support
Whitespace fixups
Don't init static variables to 0 or NULL
perf tools: Add Intel PT packet decoder
Whitespace fixups
perf tools: Add Intel PT instruction decoder
Avoid build error on older (broken) gcc by adding -Wno-override-init
Avoid build errors due to funny collate sequences i.e. use LC_COLLATE=C etc
perf tools: Add Intel PT decoder
Avoid build errors initializing structures to 0
perf tools: Add Intel PT support
Avoid build errors initializing structures to 0
Allow for perf_pmu__config_terms() having an extra parameter now
Allow for parse_events() having an extra parameter now
Rename 'div' variable to 'd' to avoid build errors
Whitespace fixup
Remove a couple of unused enums
perf tools: Add Intel BTS support
Avoid build errors initializing structures to 0
Allow for parse_events() having an extra parameter now
perf tools: Put itrace options into an asciidoc include
New patch
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 (24):
perf report: Fix placement of itrace option in documentation
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
perf tools: Put itrace options into an asciidoc include
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/itrace.txt | 22 +
tools/perf/Documentation/perf-inject.txt | 22 +-
tools/perf/Documentation/perf-record.txt | 7 +
tools/perf/Documentation/perf-report.txt | 26 +-
tools/perf/Documentation/perf-script.txt | 22 +-
tools/perf/Makefile.perf | 14 +-
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/config/Makefile | 5 +
tools/perf/perf.h | 3 +
.../scripts/python/call-graph-from-postgresql.py | 285 +++
tools/perf/tests/make | 4 +-
tools/perf/util/Build | 5 +-
tools/perf/util/auxtrace.c | 321 +++-
tools/perf/util/auxtrace.h | 220 +++
tools/perf/util/event.c | 39 +
tools/perf/util/event.h | 24 +
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 | 51 +
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 +
47 files changed, 8837 insertions(+), 122 deletions(-)
create mode 100644 tools/perf/Documentation/intel-bts.txt
create mode 100644 tools/perf/Documentation/intel-pt.txt
create mode 100644 tools/perf/Documentation/itrace.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
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