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This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/24197/
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(Updated Aug. 6, 2014, 12:13 a.m.)
Review request for mesos and Ian Downes.
Changes
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Re-uploading patch(unchanged) to kick off another review-bot instance.
Bugs: MESOS-1660
https://issues.apache.org/jira/browse/MESOS-1660
Repository: mesos-git
Description
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Lower reap interval delay time from 1 second to 250 milliseconds. Constant
REAPER_PROCESS_WAIT_INTERVAL_MS added to highlight/document the change.
Diffs (updated)
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3rdparty/libprocess/src/reap.cpp b350ee1
Diff: https://reviews.apache.org/r/24197/diff/
Testing
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make check
systematic performance testing extending reap_test.cpp to kill N=1,4,16,64,256
child processes and collecting status futures, while continuously varying
REAPER_PROCESS_WAIT_INTERVAL_MS from 1ms to 2seconds - measuring performance on
OS X using XCODE/instruments.
File Attachments
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Wait Interval vs Child Process Count Performance Study
https://reviews.apache.org/media/uploaded/files/2014/08/01/30b69e3c-12c6-401e-a21f-73de99ae930a__waitpid.pdf
Thanks,
Craig Hansen-Sturm
