Bug 827448 - Add small-dict optimization
Add small-dict optimization
Product: GlusterFS
Classification: Community
Component: core (Show other bugs)
Unspecified Unspecified
unspecified Severity low
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Assigned To: Jeff Darcy
Depends On:
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Reported: 2012-06-01 09:58 EDT by Jeff Darcy
Modified: 2015-12-01 11:45 EST (History)
2 users (show)

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Fixed In Version: glusterfs-3.4.0
Doc Type: Bug Fix
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Last Closed: 2013-07-24 13:38:14 EDT
Type: Bug
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RHEL 7.3 requirements from Atomic Host:
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Description Jeff Darcy 2012-06-01 09:58:39 EDT
Dicts are being used more and more in our I/O path (e.g. for xdata) so performance is a significant concern and our current implementation allocates data_pair structures separately from the dict itself.  Since many dicts are used to hold a very small number of items - often just one - we can optimize by allocating the first data_pair as part of the dict structure.
Comment 1 Amar Tumballi 2012-08-05 14:48:31 EDT
http://review.gluster.com/3040 is commited to master branch

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