45c97df89d
Also extend API to accept a "count" argument of exactly how many bytes to copy, and return the actual number of copied bytes. Improve docs. Test: bit FrameworksCoreTests:android.os.FileUtilsTest Test: vogar --mode app_process --benchmark frameworks/base/core/tests/benchmarks/src/android/os/FileUtilsBenchmark.java Bug: 71932978 Change-Id: I8d255e4f97462838c02a8ecb6d2d221188c4eff0
These benchmarks use the Caliper benchmark framework, and can be run on a remote device using Vogar: http://code.google.com/p/caliper/ http://code.google.com/p/vogar/ ------------------------- Quick Command Line Reference: # Build vogar and dependencies. $> mmma -j32 external/vogar # First make sure art has permissions to dalvik-cache, otherwise it will run slower with interpreter. $> adb root # Run vogar in benchmark mode, telling it to use app_process (not dalvikvm which is default) # Otherwise you will likely crash with UnsatisfiedLinkError despite having correct JNI code. $> vogar --mode app_process --benchmark path/to/Benchmark.java # Sometimes your benchmarks might time out, if so increase the timeout: # (--timeout goes to vogar, and --time-limit goes to caliper) $> vogar --timeout 1000 --mode app_process --benchmark path/to/Benchmark -- --time-limit 9999s