Bug 215500

Summary:	irqbalance not handling multiple cores
Product:	Red Hat Enterprise Linux 5	Reporter:	Anders Furuhed <anders.furuhed>
Component:	irqbalance	Assignee:	Neil Horman <nhorman>
Status:	CLOSED CURRENTRELEASE	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	5.0	CC:	bmarson
Target Milestone:	---
Target Release:	---
Hardware:	x86_64
OS:	Linux
Whiteboard:
Fixed In Version:	1.13-7.el5	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2006-11-14 13:03:11 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Anders Furuhed 2006-11-14 12:49:30 UTC

Description of problem:
irqbalance does not balance on multi-core box (Clovertown).

The problem goes away if I upgrade to
fedora/core/development/source/SRPMS/irqbalance-1.13-7.fc7.src.rpm

that has the following change log entry:
Wed Nov 08 2006 Neil Horman <nhorman> - 1.13-7
- fix up irqbalance to detect multicore (not ht) (bz 211183)

Version-Release number of selected component (if applicable):
irqbalance-1.13-6

How reproducible:


Steps to Reproduce:
1. Use multiple nics on a Clovertown box
2. Load the interfaces
3.
  
Actual results:
grep eth /proc/interrupts
 66:     940948          0        334          0          0          0         
0          0         PCI-MSI  eth0
 74:     928654          0          0        334          0          0         
0          0         PCI-MSI  eth3
 82:    1041671          0          0          0          0          0         
0          0         PCI-MSI  eth4
 90:     974421        334          0          0          0          0         
0          0         PCI-MSI  eth5

Expected results:
Something along the lines (similar box running RHEL4U4)
50:       1015          0          0          0    1200092          0          0
         0         PCI-MSI  eth3
 66:   48051768          0          0          0          0          0         
0          0         PCI-MSI  eth8
217:       1022   18005498          0          0          0          0         
0          0         PCI-MSI  eth0
225:       1020          0   12643210          0          0          0         
0          0         PCI-MSI  eth1
233:       1018          0          0   12100448          0          0         
0          0         PCI-MSI  eth2

Additional info:

Comment 1 Neil Horman 2006-11-14 13:03:11 UTC

This same change is to be picked up in the latest version or irqbalance for el5