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Diffstat (limited to 'catapult/devil/docs/persistent_device_list.md')
| -rw-r--r-- | catapult/devil/docs/persistent_device_list.md | 28 |
1 files changed, 11 insertions, 17 deletions
diff --git a/catapult/devil/docs/persistent_device_list.md b/catapult/devil/docs/persistent_device_list.md index d08d9a9e..626a8788 100644 --- a/catapult/devil/docs/persistent_device_list.md +++ b/catapult/devil/docs/persistent_device_list.md @@ -8,16 +8,16 @@ ## What is it? A persistent device list that stores all expected devices between builds. It -is used by the perf test runner in order to properly shard tests by device -affinity. This is important because the same performance test can yield -meaningfully different results when run on different devices. +is used by non-swarmed bots to detect any missing/extra devices attached to +them. + +This will be no longer needed when all bots are switched over to swarming. ## Bots -The list is usually located at one of these locations: +The list is usually located at: - - `/b/build/site_config/.known_devices`. - - `~/.android`. + - `~/.android/known_devices.json`. Look at recipes listed below in order to find more up to date location. @@ -28,14 +28,8 @@ bots that upload data to the perf dashboard. ## Where it is used -The persistent device list is used in performance test recipes via -[api.chromium\_tests.steps.DynamicPerfTests](https://cs.chromium.org/chromium/build/scripts/slave/recipe_modules/chromium_tests/steps.py?q=DynamicPerfTests). -For example, the [android/perf](https://cs.chromium.org/chromium/build/scripts/slave/recipes/android/perf.py) recipe uses it like this: - -```python -dynamic_perf_tests = api.chromium_tests.steps.DynamicPerfTests( - builder['perf_id'], 'android', None, - known_devices_file=builder.get('known_devices_file', None)) -dynamic_perf_tests.run(api, None) -``` - +The persistent device list is used in the +[chromium_android](https://cs.chromium.org/chromium/build/scripts/slave/recipe_modules/chromium_android/api.py?q=known_devices_file) +recipe module, and consumed by the +[device_status.py](https://cs.chromium.org/chromium/src/third_party/catapult/devil/devil/android/tools/device_status.py?q=\-\-known%5C-devices%5C-file) +script among others. |