Bug 1382086 - [Perf] : Poor small file performance on Ganesha v4 mounts compared to Gluster NFS
Summary: [Perf] : Poor small file performance on Ganesha v4 mounts compared to Gluster...
Keywords:
Status: CLOSED NEXTRELEASE
Alias: None
Product: Red Hat Gluster Storage
Classification: Red Hat
Component: nfs-ganesha
Version: rhgs-3.2
Hardware: x86_64
OS: Linux
high
high
Target Milestone: ---
: ---
Assignee: Girjesh Rajoria
QA Contact: Rahul Hinduja
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2016-10-05 17:13 UTC by Ambarish
Modified: 2019-10-16 06:35 UTC (History)
12 users (show)

Fixed In Version:
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Clone Of:
Environment:
Last Closed: 2019-10-16 06:35:40 UTC
Target Upstream Version:


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Description Ambarish 2016-10-05 17:13:05 UTC
Description of problem:
-----------------------

**The intent of opening this BZ is to compare small file IOPS on gNFS and Ganesha v4 mounts,and to reduce the magnitude of difference between the two. **

Small file I/O(creates ,reads,appends etc) is comparatively slower on Ganesha v4 mounts than gNFS,under the exact same workload and environment.

Details in comments.

Version-Release number of selected component (if applicable):
-------------------------------------------------------------

nfs-ganesha-2.4.0-2.el7rhgs.x86_64
glusterfs-ganesha-3.8.4-2.el7rhgs.x86_64

How reproducible:
-----------------

100%

Steps to Reproduce:
-------------------

Run smallfile in a distributed multithreaded way from 1/4 clients : 

python /small-files/smallfile/smallfile_cli.py --operation create  --threads 8  --file-size 64 --files 10000 --top /gluster-mount --host-set "`echo $CLIENT | tr ' ' ','`"

Actual results:
---------------

There is a difference in throughputs (almost 80% in some cases) between gNFS and Ganesha v4 under the same workload. 

Expected results:
-----------------

The difference between the two should be not be as pronounced as is being seen atm.

Additional info:
----------------

Vol Type  : 2*2,Dist Rep
Client and Server OS : RHEL 7

Server Profiles will be updated once https://bugzilla.redhat.com/show_bug.cgi?id=1381353 is fixed.

Comment 5 surabhi 2016-11-29 10:06:54 UTC
As per the triaging we all have the agreement that this BZ has to be fixed in rhgs-3.2.0. Providing qa_ack


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