Bug 761944 (GLUSTER-212) - replicate read/stat performance deteriorates with increased number of subvolumes
Summary: replicate read/stat performance deteriorates with increased number of subvolumes
Keywords:
Status: CLOSED NOTABUG
Alias: GLUSTER-212
Product: GlusterFS
Classification: Community
Component: replicate
Version: 2.0.4
Hardware: x86_64
OS: Linux
low
medium
Target Milestone: ---
Assignee: Vikas Gorur
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2009-08-13 08:58 UTC by Tomas Zvala
Modified: 2010-01-28 13:26 UTC (History)
1 user (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed:
Regression: ---
Mount Type: ---
Documentation: ---
CRM:
Verified Versions:

Attachments (Terms of Use)
Add an attachment (proposed patch, testcase, etc.)

Description Tomas Zvala 2009-08-13 08:58:39 UTC 
Listing all 1500 files in a replicated subvolume scales really bad with increasing number of subvolumes:


4 subvolumes
real	1m9.383s
user	0m0.035s
sys	0m0.121s

3 subvolumes 
real	0m17.322s
user	0m0.028s
sys	0m0.103s

2 subvolumes
real	0m7.287s
user	0m0.024s
sys	0m0.116s

1 subvolume
real	0m2.708s
user	0m0.009s
sys	0m0.104s

native xfs performance
real	0m0.063s
user	0m0.011s
sys	0m0.052s
Comment 1 Vikas Gorur 2009-09-04 04:03:43 UTC 
Are these the results of just running 'ls'? Are you sure any self-heal wasn't triggered?
Comment 2 Vikas Gorur 2010-01-28 10:26:16 UTC 
We haven't been able to reproduce this in our setup. Closing this bug for now. Please reopen this if you see the issue and you're sure self-heal wasn't
triggered by the 'ls'.

Thanks,
Vikas
Note You need to log in before you can comment on or make changes to this bug.