Bug 990145
Summary: | Still have latencies with the 40 core 4 socket system | ||
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Product: | Red Hat Enterprise MRG | Reporter: | John Kacur <jkacur> |
Component: | realtime-kernel | Assignee: | John Kacur <jkacur> |
Status: | CLOSED NOTABUG | QA Contact: | MRG Quality Engineering <mrgqe-bugs> |
Severity: | unspecified | Docs Contact: | |
Priority: | unspecified | ||
Version: | 2.4 | CC: | bhu, davids, jkacur, jkastner, lgoncalv, srostedt, williams |
Target Milestone: | 2.4 | ||
Target Release: | --- | ||
Hardware: | Unspecified | ||
OS: | Unspecified | ||
Whiteboard: | |||
Fixed In Version: | Doc Type: | Bug Fix | |
Doc Text: |
Cause: Lock Contention in scheduling code
Consequence: High Latency with cpu_partials
Fix: Set cpu_partials to 0 for PREEMPT_RT_FULL
Result: Good real-time latency is restored
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Story Points: | --- |
Clone Of: | 928003 | Environment: | |
Last Closed: | 2013-09-17 14:23:39 UTC | Type: | Bug |
Regression: | --- | Mount Type: | --- |
Documentation: | --- | CRM: | |
Verified Versions: | Category: | --- | |
oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
Cloudforms Team: | --- | Target Upstream Version: | |
Embargoed: | |||
Bug Depends On: | 928003 | ||
Bug Blocks: |
Description
John Kacur
2013-07-30 13:26:45 UTC
Fix in v3.8.13-rt14.18 |