[Bugs] [Bug 1375248] New: Poor large file performance on Ganesha v4 mounts on latest Ganesha rc1 build
bugzilla at redhat.com
bugzilla at redhat.com
Mon Sep 12 14:25:30 UTC 2016
https://bugzilla.redhat.com/show_bug.cgi?id=1375248
Bug ID: 1375248
Summary: Poor large file performance on Ganesha v4 mounts on
latest Ganesha rc1 build
Product: GlusterFS
Version: 3.8
Component: ganesha-nfs
Severity: high
Assignee: bugs at gluster.org
Reporter: asoman at redhat.com
CC: bugs at gluster.org
Description of problem:
-----------------------
There is a regression in large file performance on v4 mounts in the latest rc1
build.
On old dev26 build :
Seq Writes : 1134809.49 kB/s
Seq Reads : 2108506.63 kB/s
Rand Reads : 387541.02 kB/s
Rand Writes :102197.38 kB/s
On latest rc1 build :
Seq Writes : 919088.23
Seq Reads : 1994310.89
Rand Reads : 468509.52
Rand Writes : 58167.93
Rand Writes are the most severely affected(by almost 50%).
Version-Release number of selected component (if applicable):
-------------------------------------------------------------
glusterfs-3.8.1-0.4.git56fcf39.el7rhgs.x86_64
nfs-ganesha-2.4-0.rc1.el7.x86_64
How reproducible:
----------------
100%
Steps to Reproduce:
-------------------
Actual results:
----------------
Large file I/O has regressions.
Expected results:
-----------------
There should be no regressions.If there is ,it should be within 10%.
Additional info:
----------------
2*2 volume
Client and Server OS : RHEL 7.2
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