Bug 65584
Summary: | High CPU usage during resync | ||
---|---|---|---|
Product: | [Retired] Red Hat Linux | Reporter: | Christopher Chan <cchan> |
Component: | kernel | Assignee: | Arjan van de Ven <arjanv> |
Status: | CLOSED NOTABUG | QA Contact: | Brian Brock <bbrock> |
Severity: | high | Docs Contact: | |
Priority: | high | ||
Version: | 7.2 | ||
Target Milestone: | --- | ||
Target Release: | --- | ||
Hardware: | i686 | ||
OS: | Linux | ||
Whiteboard: | |||
Fixed In Version: | Doc Type: | Bug Fix | |
Doc Text: | Story Points: | --- | |
Clone Of: | Environment: | ||
Last Closed: | 2002-05-28 08:30:18 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
Christopher Chan
2002-05-28 03:55:29 UTC
This smells like no IDE DMA is active. Can you run hdparm -d /dev/hda (assuming hda is one of the disks) to check this? (this assumes IDE disks, you didn't specify scsi or ide) hmm, we use the kernel-2.4.9-31.src to compile our own kernel. That and using the stock linux 2.4.18 both leads to high cpu usage for a raid resync. We are using IDE hard disks. But I have noticed that using your binary rpms whether 2.4.7-10 or 2.4.9-31 (just been allowed to try your binaries) does not result in high cpu utilization. dma is off when we use our own compiled drivers but using your binaries result in dma being on. Then I think this would be a good time to compare the .config files we use and the one you used and look for something that appears IDE or DMA related.... |