History

Florin Malita 7006e15df5 [svg] Allow clients to pass a custom SkFontMgr Introduce a Builder helper and plumb the client-provided SkFontMgr for font resolution. Also clean up some of the legacy SkSVGDom factories. Bug: skia:10840 Change-Id: I6e1eabe7c257cb75dfdb5bf67054f93f25769027 Reviewed-on: https://skia-review.googlesource.com/c/skia/+/333577 Commit-Queue: Florin Malita <fmalita@google.com> Reviewed-by: Tyler Denniston <tdenniston@google.com>		2020-11-11 01:51:44 +00:00
..
__init__.py	skpbench	2016-09-19 11:03:58 -07:00
_adb_path.py	Assert there are some sources when running skpbench	2019-09-11 20:20:33 +00:00
_adb.py	skpbench: invoke 'adb wait-for-device' lazily	2019-07-29 16:49:59 +00:00
_benchresult.py	skpbench: add "resultsfile" option	2016-11-10 16:08:12 +00:00
_hardware_android.py	skpbench: Add support for Pixel 2	2018-04-30 15:29:13 +00:00
_hardware_nexus_6p.py	[skpbench] experiment with not disabling services	2018-03-01 19:28:44 +00:00
_hardware_pixel2.py	skpbench: Add support for Pixel 2	2018-04-30 15:29:13 +00:00
_hardware_pixel_c.py	[skpbench] Use android's perf settings for Pixel C	2018-03-19 14:22:55 +00:00
_hardware_pixel.py	skpbench: Add support for Pixel 2	2018-04-30 15:29:13 +00:00
_hardware.py	skpbench: support pixel phone	2017-10-20 17:52:36 +00:00
_os_path.py	Add "AllPathsVolatile" skpbench bots	2020-09-24 19:50:34 +00:00
README.md	Add a basic readme to help the uninitiated build and run skpbench	2020-06-11 13:27:03 +00:00
sheet.py	skpbench: add utility to format results for Skia Perf	2016-11-10 20:00:56 +00:00
skiaperf.py	find min and max, separared by comma. not minmax.	2019-11-06 16:35:23 +00:00
skpbench.cpp	[svg] Allow clients to pass a custom SkFontMgr	2020-11-11 01:51:44 +00:00
skpbench.py	add pixel xl to skpbench	2020-10-05 18:34:18 +00:00

README.md

skpbench

skpbench is a benchmarking tool for replaying skp or mksp files on android devices. it achieves a lower variance in framerate by controlling the clock speed and stopping all other processes that could cause interference.

Build

skpbench consists of the skpbench binary which must be built for the phone you intend to run on, and skpbench.py which runs on the machine the phone is connected to via ADB and is the entry point.

The to build skia for android are at https://skia.org/user/build#android and reproduced here.

Download the Android NDK

cipd auth-login
python2 infra/bots/assets/android_ndk_linux/download.py  -t /tmp/ndk

After this is set up once, build skpbench for your target cpu (assumed to be arm64 here for a Pixel 3)

bin/gn gen out/arm64 --args='ndk="/tmp/ndk" target_cpu="arm64" is_debug=false'
ninja -C out/arm64 skpbench

Benchmark an SKP on a connected device.

First, copy the built skpbench binary and an example skp file to the device.

adb push out/arm64/skpbench /data/local/tmp
adb push /home/nifong/Downloads/foo.skp /data/local/tmp/skps/

Run skpbench.py (in my case on a Pixel 3)

python tools/skpbench/skpbench.py \
  --adb \
  --force \
  --config gles \
  /data/local/tmp/skpbench \
  /data/local/tmp/skps/foo.skp

--adb specifies that it should use adb to the only connected device and run skpbench there. --force is necessary because we don't yet have a configuration to monitor vitals on the Pixel 3. --config gles specifies Open GL ES is the backend GPU config to use.

Additional documentation of arguments is printed by python tools/skpbench/skpbench.py --help

Output appears in the following format

   accum    median       max       min   stddev  samples  sample_ms  clock  metric  config    bench
  0.1834    0.1832    0.1897    0.1707    1.59%      101         50  cpu    ms      gles      foo.skp

accum is the time taken to draw all frames, divided by the number of frames. metric specifies that the unit is ms (milliseconds per frame)

Production

skpbench is run as a tryjob from gerrit, where it uploads the results to perf.skia.org. TODO(nifong, csmartdalton): elaborate on this section.