| b6b433224c144c46a08e5b118df3ce6501571aec |
|
04-May-2017 |
Yabin Cui <yabinc@google.com> |
simpleperf: fix tracing counters.
Previously prev_counter is an uninitialized value, which makes
the tracing result not correct.
Test: run simpleperf/systrace.py to profile an app.
Change-Id: I440771f705e22dec7a2948cb2f1164c17d41259a
/system/extras/simpleperf/event_fd.cpp
|
| 0720d488b902fa5ddea20813dfaf34e942218c48 |
|
07-Mar-2017 |
Yabin Cui <yabinc@google.com> |
simpleperf: adjust sample_freq based on max_sample_rate file.
Starting from kernel 4.4, perf_event_max_sample_rate can be
adjusted dynamically by the kernel to limit the cpu percentage
used to dump records.
Bug: http://b/35554543
Test: echo 100 >/proc/sys/kernel/perf_event_max_sample_rate &&
Test: run CtsSimpleperfTestCases
Change-Id: I75f6cbc124c545d05fd56b07c6a868b7ca15cd8a
/system/extras/simpleperf/event_fd.cpp
|
| 26968e6c48dea2eaa217991ade5a04e801f1be8f |
|
30-Jan-2017 |
Yabin Cui <yabinc@google.com> |
simpleperf: add inplace-sampler event type.
Add inplace-sampler event type, so it can be used in
record/list command. This cl doesn't add code for communicating
with profiled process, and fake records in InplaceSamplerClient.cpp
for testing purpose.
Refactor runtest.py to test inplace-sampler profiling.
Bug: http://b/30974760
Test: run runtest.py --inplace-sampler.
Change-Id: I92d8b03583c58b3589207f5c655e03853899be3a
/system/extras/simpleperf/event_fd.cpp
|
| 92f80f45926f658ba9c0ddd03afe8e65d458698a |
|
07-Jan-2017 |
Yabin Cui <yabinc@google.com> |
simpleperf: fix synchronization when reading mapped buffer.
Fixed according to http://lxr.free-electrons.com/source/kernel/events/ring_buffer.c#L61.
Test: run simpleperf_unit_test.
Change-Id: I44486b1630c92de57fb575b502b2d7c798e46e4b
/system/extras/simpleperf/event_fd.cpp
|
| 2ea6de11962fea5613f15308b202fb505e57ae9b |
|
25-Oct-2016 |
Yabin Cui <yabinc@google.com> |
simpleperf: merge records from different buffers in memory.
By reading records from all buffers at once, we can merge records
in memory instead of sorting them in perf.data. To make it clear,
this patch only contains the code to merge records in memory, and
I will remove old method later.
Bug: http://b/32343227
Test: run simpleperf_unit_test.
Test: run simpleperf_runtest.py.
Change-Id: Iea2da06c072243c2014f43c8aa6d96a23cfb9123
/system/extras/simpleperf/event_fd.cpp
|
| cf69e4190b77e3a41344552851714eef8489d448 |
|
30-Sep-2016 |
Wei Wang <wvw@google.com> |
simpleperf: add perf counter into trace
Bug: http://b/31840600
Test: captured systrace with simpleperf stat
Change-Id: I14447d048ea8d059a377c6f0d7cfc10041a98693
/system/extras/simpleperf/event_fd.cpp
|
| 825e56be3a1c5310969aaa3e10a7cd1f63455189 |
|
27-Aug-2016 |
Yabin Cui <yabinc@google.com> |
simpleperf: support hotplug events in record cmd.
1. When a cpu is down, read records from event files on that cpu,
then close those event files.
2. When a cpu is up, open event files on that cpu, and create
mapped buffer for those event files to dump records.
3. Instead of creating a mapped buffer for each event type on each
cpu, we can just create a mapped buffer for all event types on
each cpu.
4. When new event files are created, store a EventIdRecord record in
perf.data to notify record_file_reader.cpp.
Bug: http://b/29245608
Test: run simpleperf record cmd and make cpu offline and online.
Test: run simpleperf_unit_test.
Change-Id: Ib97a24b6292fa143e9b35cb105bdddf1e826d60a
/system/extras/simpleperf/event_fd.cpp
|
| dbbda3020c483a8da2e9ce985c1e9d8b7bcc8ec0 |
|
28-Jul-2016 |
Yabin Cui <yabinc@google.com> |
simpleperf: use libevent in record command.
Support read Event in IOEventLoop, test it, and use it
in record command.
Format related code and clean up some comments.
Bug: http://b/30405638
Change-Id: I3b07d50b0374be3f3e7ee9fa4d0c0ccc8ae21a2b
Test: run simpleperf_unit_test.
/system/extras/simpleperf/event_fd.cpp
|
| 0a072cda021e5dfbdbb39f4d8d30771a851b3c3a |
|
14-Jul-2016 |
Yabin Cui <yabinc@google.com> |
simpleperf: adjust mapped buffer size in record command.
Instead of fixing the mapped buffer size, we can adjust
it at runtime. So users don't need to adjust -m manually.
Bug: 29574526
Change-Id: Icb580df3d60f8d2cf554c0d4139e6f7f64b19f8f
Test: run simpleperf_unit_test.
/system/extras/simpleperf/event_fd.cpp
|
| 6173592d3d086b8e493590d626fdbdb4e344c433 |
|
08-Jul-2016 |
Yabin Cui <yabinc@google.com> |
simpleperf: combine mapped buffer used for the same event and cpu.
Non root users have a size limit of buffers used for profiling.
By combining buffers used for the same event and cpu, we can
reduce buffer cost when monitoring multiple threads, thus
avoid mmap() failures.
Increase default value for -m option for non system wide profiling.
Bug: 28911532
Change-Id: I91148061eb54840c144cf72e7bb901e7b74897ec
Test: run simpleperf_unit_test.
/system/extras/simpleperf/event_fd.cpp
|
| 27816c9bb55b4b818caca815131432ce0eec9ed6 |
|
07-Jul-2016 |
Yabin Cui <yabinc@google.com> |
simpleperf: give suggestion when mmap fails.
Bug: 29574526
Change-Id: I72cf2d0e1d15a561314d3c043650479b2c6773ff
/system/extras/simpleperf/event_fd.cpp
|
| 877751bbae11e009070e036ee1cd16e88135fff5 |
|
14-Jun-2016 |
Yabin Cui <yabinc@google.com> |
simpleperf: support event group.
Kernel supports monitoring several events as a group, so they are
scheduled on and out at the same time. Add --group option to
stat command and record command.
Adjust the method to calculate miss rate in stat command: limit
the matched events in the same group or with scale == 1.0.
Bug: 29213742
Change-Id: I899aba207f1e3357307541e81f97526f5a2913c3
/system/extras/simpleperf/event_fd.cpp
|
| c10a9dce1f1faa292317c815205d821fd1f859be |
|
15-Jun-2016 |
Yabin Cui <yabinc@google.com> |
simpleperf: add type modifier when reporting events.
Before the change:
$simpleperf record -e cpu-cycles:u sleep 1
$simpleperf report
...
Event: cpu-cycles (type 0, config 0)
...
After the change:
$simpleperf report
...
Event: cpu-cycles:u (type 0, config 0)
...
Change-Id: I296c5476e03250e928ed0f579483d6866576d417
/system/extras/simpleperf/event_fd.cpp
|
| 5633586f0efc54dbaecad3deeb8568786317832d |
|
18-Apr-2016 |
Yabin Cui <yabinc@google.com> |
simpleperf: improve cpu_hotplug tests.
Add cpu hotplug test for ioctl(PERF_EVENT_IOC_ENABLE),
and improve cpu_hotplug tests by removing sleep calls.
Bug: 28384580
Change-Id: I5869cd9bb3086b6f3a73cf7dce4ffd720326c3c6
/system/extras/simpleperf/event_fd.cpp
|
| 7d6c8abc4bdc48ff44db83103f274d9b0bcecc87 |
|
16-Apr-2016 |
Chih-Hung Hsieh <chh@google.com> |
Fix some google-runtime-int warnings.
Bug: 28220065
Change-Id: Ic6b24216d216bbb165a1420b52b11c7703b810a0
/system/extras/simpleperf/event_fd.cpp
|
| 2d6efe4b167da4e6b77f168b1820239ee65599e2 |
|
02-Apr-2016 |
Yabin Cui <yabinc@google.com> |
simpleperf: support reporting more than one event type.
When sampling kernel trace points, it is like to sample more than
one even type. Like `simpleperf record -e kmem:mm_page_alloc,kmem:mm_page_free`.
1. change record command to dump event_id for all records.
2. change report command and record reader to support multiple
event attrs.
3. hide record_cache inside EventSelectionSet.
4. add test to report multiple event types.
Bug: 27403614
Change-Id: Ic22a5527d68e7a843e3cf95e85381f8ad6bcb196
/system/extras/simpleperf/event_fd.cpp
|
| 19e6b6d372a1244189dc2df62313085a61ed1a80 |
|
10-Mar-2016 |
Yabin Cui <yabinc@google.com> |
simpleperf: check if dwarf callgraph is supported by kernel before testing.
Move inclusion of poll.h from header files to source files,
as event_selection_set.h is used by cmd_report_test.cpp, which
can be built on windows.
Bug: 27590546
Change-Id: Ic6b141a93d96610f911ab52da1d927b7f619ccb2
/system/extras/simpleperf/event_fd.cpp
|
| b9ca50b319d2083c5a92c468e54796b0e71a4ad9 |
|
05-Dec-2015 |
Yabin Cui <yabinc@google.com> |
Merge "Simpleperf: don't use ioctl(PERF_EVENT_IOC_ENABLE)."
|
| 66dd09e8e2407082ce93bf0784de641298131912 |
|
04-Dec-2015 |
Elliott Hughes <enh@google.com> |
Track rename from base/ to android-base/.
Change-Id: Ic15d4778c7accd1382de0b440a437aba2cf67016
/system/extras/simpleperf/event_fd.cpp
|
| a46794fa2963de93a9d25fd6945d3c58121e2ba6 |
|
03-Dec-2015 |
Yabin Cui <yabinc@google.com> |
Simpleperf: don't use ioctl(PERF_EVENT_IOC_ENABLE).
Some android kernels(like bullhead/angler) can't handle
ioctl(PERF_EVENT_IOC_ENABLE) correctly when cpu-hotplug
happens. Instead of fixing all of them in kernel, we
can't simply don't use it.
Bug: 25193162
Change-Id: I9df1458045ffd2ccc2c7ba393e746ebba7c253de
/system/extras/simpleperf/event_fd.cpp
|
| f469c3d7f4466a2a31c3e837969c43c1e3bc4c90 |
|
08-Oct-2015 |
Yabin Cui <yabinc@google.com> |
Simpleperf: do stack unwinding while recording.
Dumping user's stack consumes lots of disk space, which makes long period recording
impossible. This patch does stack unwinding before writing to perf.data, so it doesn't
need to save user's stack. Previous behavior is still supported with --post-unwind option.
A record cache is used for online record processing.
Bug: 22229391
Change-Id: Idcc6ec46924fff3fcc8c165d62f8af875b173cd4
/system/extras/simpleperf/event_fd.cpp
|
| 42aa127e8ab4c5eb5197cf3cc68470cf3a0fdcbb |
|
18-Sep-2015 |
Yabin Cui <yabinc@google.com> |
Simpleperf: rewrite unsupported logging style.
Previously we can use a ternary operator to choose the log level, like
(error ? LOG(ERROR) : LOG(DEBUG)) << xxx. But as the LOG() macro is about
to change, we can no longer write like this.
This CL also changes some improper log levels and log messages.
Change-Id: Ib9a55f2ca241516a6e89afad4a733cc07b19570f
/system/extras/simpleperf/event_fd.cpp
|
| 9fd3cc1048a3d0338df4a48760dfd655560992a1 |
|
26-Jun-2015 |
Yabin Cui <yabinc@google.com> |
Simpleperf: support build on mac.
Bug: 19483574
Change-Id: I6c28541944bc0a4e6fc07d7ea5a8fb5f71890510
/system/extras/simpleperf/event_fd.cpp
|
| d115b2f738f2cef352877b26c2d93460ac9fea25 |
|
15-Jun-2015 |
Yabin Cui <yabinc@google.com> |
Simpleperf: support event type modifier.
Also fix a bug in event_attr dumping.
Bug: 19483574
Change-Id: I255647d1471acab3a63c3dc787ab06b3d2bee294
/system/extras/simpleperf/event_fd.cpp
|
| b032de7a9e1975a838cd6df2e7c8df3c7f70a3ce |
|
18-Jun-2015 |
Yabin Cui <yabinc@google.com> |
Simpleperf: support monitoring existing processes/threads.
Also change the default record freq from 1000 to 4000. Because 1000 seems to be too low.
Bug: 19483574
Change-Id: I340fcb9d28a156862705e483ee340a1c824eea21
/system/extras/simpleperf/event_fd.cpp
|
| 7d4904d5fc038f8125cfc63a5eaa4669ee2aebda |
|
09-Jun-2015 |
Yabin Cui <yabinc@google.com> |
Simpleperf: fix a few bugs.
Fix mistyped word.
Kill workload process when exiting.
Add checking of whether branch sampling is supported.
Bug: 19483574
Change-Id: Ibe48914cd92da1ee40bf67c0c47a6376a7291e8c
/system/extras/simpleperf/event_fd.cpp
|
| f569b478e74560a2d9e29a96824e16b93a55b97f |
|
30-Apr-2015 |
Yabin Cui <yabinc@google.com> |
Support tracepoint event types in simpleperf.
Also support options in `simpleperf list`, add test about tracepoint event types.
Bug: 19483574
Change-Id: I2d2c2f300fe5e2968696228899084410aa9f29a4
/system/extras/simpleperf/event_fd.cpp
|
| 9759e1b1ce76185aa539aeea2fb1cbd8382156e7 |
|
29-Apr-2015 |
Yabin Cui <yabinc@google.com> |
Implement simpleperf record/dumprecord subcommands.
Bug: 19483574
Change-Id: Id879713a75c2d3a6289d8847b95ee0bb4a2cc8a0
/system/extras/simpleperf/event_fd.cpp
|
| 323e945313b190373b3fcfe578e25ee8390a76d3 |
|
21-Apr-2015 |
Yabin Cui <yabinc@google.com> |
Implement simpleperf stat subcommand.
Also add some simple unit-tests.
Change-Id: Ic30a2d4a879e028a8c82babbaf82e322fc49a838
/system/extras/simpleperf/event_fd.cpp
|
| 67d3abd7b26a741347b33402ad32f5c6735ca0bd |
|
17-Apr-2015 |
Yabin Cui <yabinc@google.com> |
Implement simpleperf list subcommand.
simpleperf is used to replace linux/tools/perf. And This CL implements
the list subcommand of it.
Change-Id: I3e6fe854e19cc370070d0fd8416d0aa6fa8f8e90
/system/extras/simpleperf/event_fd.cpp
|