Bug 1419549

Summary:	[Perf] : Random Writes are off target by 22% on EC backed volumes over FUSE
Product:	[Red Hat Storage] Red Hat Gluster Storage	Reporter:	Ambarish <asoman>
Component:	disperse	Assignee:	Ashish Pandey <aspandey>
Status:	CLOSED WONTFIX	QA Contact:	Nag Pavan Chilakam <nchilaka>
Severity:	high	Docs Contact:
Priority:	medium
Version:	rhgs-3.2	CC:	amukherj, aspandey, bturner, rcyriac, rhinduja, rhs-bugs, storage-qa-internal
Target Milestone:	---	Keywords:	Regression, ZStream
Target Release:	---
Hardware:	x86_64
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:	1408639	Environment:
Last Closed:	2018-10-17 09:37:00 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:

Comment 3 Ambarish 2017-02-06 13:31:11 UTC

On 3.8.4-13 :

Random Writes : 470731.12 kB/sec

Disabling self heal showed no improvement on random writes(466813.44 kB/sec).nor did disabling io-threads as I mentioned in the description.

Comment 5 Ambarish 2017-02-08 06:48:48 UTC

The number of INODELK calls have been increases considerably from  8 to almost 3000+ in 3.2,this may account for this regression.

Ashish can you take a look too?