kc3-lang/angle/src/tests/restricted_traces/gpumem.sh

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• Hash : 5cffbe96
  Author :
  Date : 2022-03-08T14:51:11
  

  Android: Track peak GPU memory in restricted_trace_perf
  
  We've noticed that the script reports higher memory usage than
  recorded with local runs with similar steps.  We isolated this to
  ANGLE using much higher peak memory when the trace loads, but then
  evens out after some time, nearing parity with native.
  
  To track this for optimization, we are going to split the memory
  tracking into:
   - peak GPU memory usage
   - sustained GPU memory usage
  
  This CL changes the script to:
  * Measure peak GPU memory usage by tracking total GPU memory used
    throughout the trace, returning the highest.
  * Measure sustained GPU memory usage by tracking usage from the
    middle of the trace (based on run time), returning the average.
  * Update the frequency of memory sampling by reducing sleep to 0.25
    seconds instead of 1.0 second.
  
  As a data point, here is what angry_birds_2_1500 reports on Pixel 6:
  
    Before: 602599651 bytes
  
    After:  672231424 bytes (peak)
            360621537 bytes (sustained)
  
  Bug: angleproject:6970
  Change-Id: I227e30abeb6a5f28fe7230a2979441c3693234f1
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3511314
  Reviewed-by: Charlie Lao <cclao@google.com>
  Reviewed-by: Roman Lavrov <romanl@google.com>
  Commit-Queue: Cody Northrop <cnorthrop@google.com>
  

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• src/tests/restricted_traces/gpumem.sh

• #!/bin/bash
  #
  # Copyright 2021 The ANGLE Project Authors. All rights reserved.
  # Use of this source code is governed by a BSD-style license that can be
  # found in the LICENSE file.
  #
  
  sleep_duration=$1
  if [ $sleep_duration -eq 0 ]; then
      echo "No sleep_duration provided"
      exit 1
  fi
  
  start_time=$SECONDS
  while true; do
      pid=$(pidof com.android.angle.test:test_process)
      case $pid in
          ''|*[!0-9]*) echo pid is not a number ;;
          *) echo com.android.angle.test:test_process $pid >> /sdcard/Download/gpumem.txt ;;
      esac
      dumpsys gpu --gpumem >> /sdcard/Download/gpumem.txt
      time_elapsed=$(( SECONDS - start_time ))
      echo "time_elapsed: $time_elapsed" >> /sdcard/Download/gpumem.txt
      sleep $sleep_duration;
  done
  

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