Bug 712063 - btrfs is dead slow due to fragmentation
Summary: btrfs is dead slow due to fragmentation
Keywords:
Status: CLOSED CURRENTRELEASE
Alias: None
Product: Fedora
Classification: Fedora
Component: kernel
Version: 15
Hardware: Unspecified
OS: Unspecified
unspecified
high
Target Milestone: ---
Assignee: Josef Bacik
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard:
Depends On:
Blocks: 689509
TreeView+ depends on / blocked
 
Reported: 2011-06-09 11:59 UTC by Felipe Contreras
Modified: 2012-02-02 18:46 UTC (History)
6 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed: 2012-02-02 18:46:49 UTC
Type: ---
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Linux Kernel 21562 0 None None None Never

Description Felipe Contreras 2011-06-09 11:59:32 UTC 
Just to track the upstream bug.

https://bugzilla.kernel.org/show_bug.cgi?id=21562
Comment 1 Felipe Contreras 2011-06-09 12:01:01 UTC 
Unless anybody thinks a speed of 500kb/s is acceptable, this *must* be fixed before btrfs is the default fs.
Comment 2 Josef Bacik 2011-06-09 20:14:55 UTC 
Mount -o auto-defrag with an upstream kernel.
Comment 3 Felipe Contreras 2011-06-09 20:24:53 UTC 
(In reply to comment #2)
> Mount -o auto-defrag with an upstream kernel.

Mention that in the upstream bug report. Once it has been validated to fix the issue, the upstream bug can be closed _then_ this bug can be closed.

In the meantime, as far as we know, the issue remains there.

And BTW, does this means that auto-defrag would be enabled by default in Fedora?
Comment 4 Josef Bacik 2011-06-09 21:03:31 UTC 
Yes the idea is that it will be turned on by default for fedora.
Comment 5 Chuck Ebbert 2011-06-24 11:08:29 UTC 
(In reply to comment #4)
> Yes the idea is that it will be turned on by default for fedora.

Do you have a patch for rawhide so we can try it  there?
Comment 6 Felipe Contreras 2012-02-02 18:46:49 UTC 
I guess autodefrag does the trick.
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