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authorYurii Zubrytskyi <zyy@google.com>2016-07-29 10:51:46 -0700
committerJin Qian <jinqian@google.com>2016-11-17 12:28:42 -0800
commitbc43565e1ac5ba3f204886a2275726bb4c3d44e6 (patch)
treedf744c9a5e71ab937a3a2f07ff3b06b54bcf083f /lib/mpi/mpi-pow.c
parente96f35d6073717452d9bc484dad0c3cfb61f5c46 (diff)
ANDROID: goldfish_pipe: An implementation of more parallel pipe
This is a driver code for a redesigned android pipe. Currently it works for x86 and x64 emulators with the following performance results: ADB push to /dev/null, Ubuntu, 400 MB file, times are for 1/10/100 parallel adb commands x86 adb push: (4.4s / 11.5s / 2m10s) -> (2.8s / 6s / 51s) x64 adb push: (7s / 15s / (too long, 6m+) -> (2.7s / 6.2s / 52s) ADB pull and push to /data/ have the same %% of speedup More importantly, I don't see any signs of slowdowns when run in parallel with Antutu benchmark, so it is definitely making much better job at multithreading. The code features dynamic host detection: old emulator gets the previous version of the pipe driver code. Combine follow patch from android-goldfish-3.10 b543285 [pipe] Increase the default pipe buffers size, make it configurable Signed-off-by: "Yurii Zubrytskyi" <zyy@google.com> Change-Id: I140d506204cab6e78dd503e5a43abc8886e4ffff
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