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| author | 2022-07-28 21:51:41 +0000 | |
|---|---|---|
| committer | 2022-07-28 21:58:17 +0000 | |
| commit | 3390cdcec3c24100bf4d3be3c5d2f9fb32486ed6 (patch) | |
| tree | 410ad75ee69278956a42f0a4b90717935b6099a5 /libs/androidfw/ResourceTimer.cpp | |
| parent | b0c69df17c8c480c1c8df0e82c10277144af0a6e (diff) | |
Manually release objects in testDeserializeFontMap.
Before this CL, the latency numbers (esp. p90 and p95) are affected
by the number of test iterations [1]. With more test iteration, stddev
increases (instead of dropping).
It is suspected that this is due to GC running during test to
reclaim Typeface objects and release underlying native objects.
The latency numbers are more stable [2] when we release the native
objects manually outside measured segment.
[1] testDeserializeFontMap before this CL on oriole
==== TARGET_TEST_DURATION_NS = 500ms ====
[1/1] android.graphics.perftests.TypefaceSerializationPerfTest#testDeserializeFontMap: PASSED (9.324s)
testDeserializeFontMap_mean (ns): 183206
testDeserializeFontMap_median (ns): 180155
testDeserializeFontMap_percentile90 (ns): 209350
testDeserializeFontMap_percentile95 (ns): 213460
testDeserializeFontMap_stddev (ns): 41002
==== TARGET_TEST_DURATION_NS = 5000ms ====
[1/1] android.graphics.perftests.TypefaceSerializationPerfTest#testDeserializeFontMap: PASSED (14.322s)
testDeserializeFontMap_mean (ns): 202022
testDeserializeFontMap_median (ns): 190185
testDeserializeFontMap_percentile90 (ns): 240560
testDeserializeFontMap_percentile95 (ns): 253540
testDeserializeFontMap_stddev (ns): 93062
[2] testDeserializeFontMap with this CL on oriole
==== TARGET_TEST_DURATION_NS = 500ms ====
[1/1] android.graphics.perftests.TypefaceSerializationPerfTest#testDeserializeFontMap: PASSED (9.224s)
testDeserializeFontMap_mean (ns): 121483
testDeserializeFontMap_median (ns): 118001
testDeserializeFontMap_percentile90 (ns): 122233
testDeserializeFontMap_percentile95 (ns): 125448
testDeserializeFontMap_stddev (ns): 51197
==== TARGET_TEST_DURATION_NS = 5000ms ====
[1/1] android.graphics.perftests.TypefaceSerializationPerfTest#testDeserializeFontMap: PASSED (13.361s)
testDeserializeFontMap_mean (ns): 120750
testDeserializeFontMap_median (ns): 119344
testDeserializeFontMap_percentile90 (ns): 124064
testDeserializeFontMap_percentile95 (ns): 127441
testDeserializeFontMap_stddev (ns): 15181
Bug: 239758440
Test: atest CorePerfTests:android.graphics.perftests.TypefaceSerializationPerfTest#testDeserializeFontMap
Change-Id: Ia445300b1a872f51dadad38a0f063d5097c52779
Diffstat (limited to 'libs/androidfw/ResourceTimer.cpp')
0 files changed, 0 insertions, 0 deletions