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https://reviews.apache.org/r/42518/
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Review request for mesos, Ben Mahler, Cody Maloney, and Joris Van Remoortere.


Bugs: MESOS-920
    https://issues.apache.org/jira/browse/MESOS-920


Repository: mesos


Description
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When this flag is set, glog makes several hundred `posix_fadvise(...,
POSIX_FADV_DONTNEED)` calls per second to advise the kernel to drop
in-memory buffers related to log contents.


Diffs
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  src/logging/logging.cpp f7619b18fa4a78b20951edad892ca5c616bbed55 

Diff: https://reviews.apache.org/r/42518/diff/


Testing
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Verified with the patch by running under gdb and placing a breakpoint on 
posix_fadvise. The breakpoint doesn't hit anymore.


Thanks,

Kapil Arya

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