Bug 1285624 – AIO is processing only 1 request, even if >1 requests in virtio

Bug 1285624 - AIO is processing only 1 request, even if >1 requests in virtio

Summary:	AIO is processing only 1 request, even if >1 requests in virtio

Status:	CLOSED DUPLICATE of bug 1243548

Aliases:	None

Product:	Red Hat Enterprise Linux 7
Classification:	Red Hat
Component:	qemu-kvm-rhev (Show other bugs)
Sub Component:
Version:	7.2
Hardware:	Unspecified Unspecified

Priority	unspecified Severity unspecified
Target Milestone:	rc
Target Release:	---
Assigned To:	Stefan Hajnoczi
QA Contact:	Virtualization Bugs
Docs Contact:

URL:
Whiteboard:
Keywords:

Depends On:	1243548
Blocks:
	Show dependency tree / graph

Reported:	2015-11-26 00:20 EST by Stefan Hajnoczi
Modified:	2016-06-17 10:48 EDT (History)
CC List:	13 users (show)

See Also:
Fixed In Version:	qemu-kvm-rhev-2.5.0-1.el7
Doc Type:	Bug Fix
Doc Text:	When QEMU was configured with the aio=native parameter, KVM virtual machines were slowed significantly. With this update, asynchronous I/O (AIO) can correctly process more than one request at a time, and using aio=native no longer has a negative impact on guest performance.
Story Points:	---
Clone Of:	1243548
Environment:
Last Closed:	2016-03-17 03:33:27 EDT
Type:	Bug
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

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Comment 2 Stefan Hajnoczi 2015-11-26 03:37:24 EST

Cloned for RHEL 7.2.z.  The RHEL 7.3 fix will come from upstream via rebase.

Comment 3 Stefan Hajnoczi 2016-02-24 04:36:20 EST

Setting RHEL 7.2.z flag.  For RHEL 7.3, please see bz#1243548.

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