Bug 66422
Summary: | vmstat gives bogus idle cpu | ||||||||||
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Product: | [Retired] Red Hat Linux | Reporter: | Davide Rossetti <davide.rossetti> | ||||||||
Component: | procps | Assignee: | Alexander Larsson <alexl> | ||||||||
Status: | CLOSED RAWHIDE | QA Contact: | Aaron Brown <abrown> | ||||||||
Severity: | medium | Docs Contact: | |||||||||
Priority: | medium | ||||||||||
Version: | 7.3 | CC: | daniel.blueman | ||||||||
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: | 2003-01-31 14:22:48 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: | |||||||||||
Attachments: |
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Description
Davide Rossetti
2002-06-10 10:30:52 UTC
Created attachment 60269 [details]
a longer vmstat run showing the problem...
I've also seen this on a Null beta install, when testing Apache 2.0 on a single 500Mhz PIII system. Linux xxx 2.4.18-12 #1 Fri Aug 16 16:57:26 EDT 2002 i686 unknown unknown GNU/Linux This usually happens a few times whilst running "ab -c 50 -n 100000 http://myhost/" from a different box. Created attachment 73125 [details]
Another sample of vmstat output
Looks like the high idle time is the result of integer overflow, since the sum of the system time and user time is greater than 100 in all the cases where it goes haywire. Created attachment 76646 [details]
fix for idle overflow
I've been experiencing this often also - can the fixed procps package be made available in the RH errata? It's a pain... The fix is in 2.0.11 which is in rawhide and will be in the next release. If you want it in 7.3 i think rebuilding the SRPM will work fine. |