Mike Percy has posted comments on this change.

Change subject: Only release memory to OS when overhead is unacceptable
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Patch Set 1:

(1 comment)

Nice find!

http://gerrit.cloudera.org:8080/#/c/1711/1/src/kudu/util/mem_tracker.cc
File src/kudu/util/mem_tracker.cc:

Line 496:     while (extra > 0) {
Seems susceptible to TOCTOU, in case there is a large allocation in the middle 
of this loop. How expensive is the GetNumericProperty call?


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Gerrit-MessageType: comment
Gerrit-Change-Id: I184c9b7c64a57d4cd178fe7cfb2c548e323edecb
Gerrit-PatchSet: 1
Gerrit-Project: kudu
Gerrit-Branch: master
Gerrit-Owner: Todd Lipcon <[email protected]>
Gerrit-Reviewer: Adar Dembo <[email protected]>
Gerrit-Reviewer: Mike Percy <[email protected]>
Gerrit-HasComments: Yes

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