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This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/25947/
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Review request for mesos, Bernd Mathiske, Ben Mahler, Craig Hansen-Sturm, and
Jie Yu.
Bugs: MESOS-1199
https://issues.apache.org/jira/browse/MESOS-1199
Repository: mesos-git
Description
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If pid count <= 50 then use 100 ms (<= 0.5% core usage), if count >= 500 use
1000 ms (<= 1% core usage at 500 pids), else interpolate.
Diffs
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3rdparty/libprocess/src/reap.cpp b350ee15bf232493be01506037524b7590c0d2f5
Diff: https://reviews.apache.org/r/25947/diff/
Testing
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Wrote test program which looped, calling kill(0, pid) and waitpid(pid, &status,
WNOHANG) on N children (still running) each loop. These are the system calls
used by the reaper. Computed load as wall time / (user + system time). Tested
on Linux and OSX.
`sudo ./bin/mesos-tests.sh` time reduced 20% from 6:40 to 5:20 (not running
Docker tests).
Thanks,
Ian Downes
