Bug 1619627

Summary: Add performance options to virt profile
Product: [Red Hat Storage] Red Hat Gluster Storage Reporter: SATHEESARAN <sasundar>
Component: glusterdAssignee: Krutika Dhananjay <kdhananj>
Status: CLOSED ERRATA QA Contact: Sweta Anandpara <sanandpa>
Severity: high Docs Contact:
Priority: medium    
Version: rhgs-3.3CC: amukherj, kdhananj, mpillai, rhs-bugs, sabose, sanandpa, sankarshan, seamurph, sheggodu, storage-qa-internal, vbellur
Target Milestone: ---Keywords: Performance, ZStream
Target Release: RHGS 3.4.z Batch Update 1   
Hardware: x86_64   
OS: Linux   
Whiteboard:
Fixed In Version: glusterfs-3.12.2-20 Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: 1599423
: 1630798 1632150 (view as bug list) Environment:
Last Closed: 2018-10-31 08:46:14 UTC Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 1599423, 1616270, 1630798, 1632150    

Description SATHEESARAN 2018-08-21 10:54:14 UTC 
Description of problem:
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The option performance.client-io-threads, which has been unavailable as a tuning option for replicated volumes in recent releases, is available in RHGS 3.3.1-async and RHGS 3.4. RHHI can benefit by adding it to the group virt profile, along with a few others. The following is the list of suggested additions to group virt:

performance.client-io-threads on
client.event-threads 4
server.event-threads 4

In addition, "cluster.choose-local false" is beneficial, and is already covered in bz #1568297.

In most random I/O tests on flash, the fuse thread is currently seen to be the bottleneck. client-io-threads, along with the other options, helps push IOPS far beyond what RHHI can currently provide.
Comment 3 Sahina Bose 2018-09-19 06:59:52 UTC 
Proposing this as per the latest perf analysis in Bug 1616270.
Comment 4 Krutika Dhananjay 2018-09-19 10:26:06 UTC 
Upstream patch posted - https://review.gluster.org/c/glusterfs/+/21222
Comment 13 errata-xmlrpc 2018-10-31 08:46:14 UTC 
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHSA-2018:3432