Bug 951661 - Avoid calling fallocate(), even when supported, since it turns off XFS's delayed-allocation optimization
Summary: Avoid calling fallocate(), even when supported, since it turns off XFS's dela...
Keywords:
Status: CLOSED CURRENTRELEASE
Alias: None
Product: GlusterFS
Classification: Community
Component: object-storage
Version: pre-release
Hardware: x86_64
OS: Linux
unspecified
high
Target Milestone: ---
Assignee: crisbud@redhat.com
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Depends On:
Blocks: 903396 978061
TreeView+ depends on / blocked
 
Reported: 2013-04-12 17:58 UTC by Peter Portante
Modified: 2014-06-18 07:47 UTC (History)
2 users (show)

Fixed In Version: glusterfs-3.4.0
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2013-07-24 17:15:17 UTC
Regression: ---
Mount Type: ---
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Description Peter Portante 2013-04-12 17:58:38 UTC 
Using fallocate() turns off delayed-allocation in XFS, and results in substantially slower behavior for PUT operations.
Comment 1 Junaid 2013-07-09 06:43:12 UTC 
Assigning the bug to Chetan as he is currently working on it.
Comment 2 crisbud@redhat.com 2013-07-16 04:20:17 UTC 
A default tunable can be used to disable the fallocate calls for gluster FS. That has been documented in the configuration files. The changes are now merged into the code. 

BUG: 951661
Change-Id: I3c7d518e0415b7eea5b31c88dd647069f9d730ac
Signed-off-by: Chetan Risbud <crisbud>
Signed-off-by: Luis Pabon <lpabon>
Reviewed-on: http://review.gluster.org/5303
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