Bug 1016729 – Apply IB performance patches to 3.8 realtime kernel

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Bug 1016729 - Apply IB performance patches to 3.8 realtime kernel

Summary:	Apply IB performance patches to 3.8 realtime kernel

Status:	CLOSED ERRATA

Aliases:	None

Product:	Red Hat Enterprise MRG
Classification:	Red Hat
Component:	realtime-kernel (Show other bugs)
Sub Component:
Version:	2.4
Hardware:	x86_64 Linux

Priority	unspecified Severity high
Target Milestone:	2.4.3
Target Release:	---
Assigned To:	John Kacur
QA Contact:	MRG Quality Engineering
Docs Contact:

URL:
Whiteboard:
Keywords:

Depends On:
Blocks:
	Show dependency tree / graph

Reported:	2013-10-08 11:14 EDT by Clark Williams
Modified:	2014-01-28 12:39 EST (History)
CC List:	6 users (show)

See Also:
Fixed In Version:
Doc Type:	Bug Fix
Doc Text:	Cause: Various aspects of cache on Infiband, sometimes due to upstream infrastructure changes resulted in potentially bad performance. Consequence: Poor cache performance on InfiniBand Fix: 1. Only cache valid GIDs and not empty ones to reduce search time. 2. When searching GIDs on a list of devices, first start with the device that received the request. 3. Change cma_acquire_dev function to search for cached GIDs. Result: Improved IB performance, potentially pathological (for throughput performance) code paths removed.
Story Points:	---
Clone Of:
Environment:
Last Closed:	2014-01-28 12:39:44 EST
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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External Trackers
Tracker	ID	Priority	Status	Summary	Last Updated
Red Hat Bugzilla	1016724	None	None	None	Never
Red Hat Product Errata	RHSA-2014:0100	normal	SHIPPED_LIVE	Important: kernel-rt security and bug fix update	2014-01-28 17:38:58 EST

Groups: None (edit)

Description Clark Williams 2013-10-08 11:14:38 EDT

Apply IB performance patch set from tracker bug to the 3.8 realtime kernel.

Comment 7 errata-xmlrpc 2014-01-28 12:39:44 EST

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.

http://rhn.redhat.com/errata/RHSA-2014-0100.html

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