Bug 887355
| Summary: | disable transparent hugepages in latency-performance profile | ||||||
|---|---|---|---|---|---|---|---|
| Product: | Red Hat Enterprise Linux 6 | Reporter: | Jeremy Eder <jeder> | ||||
| Component: | tuned | Assignee: | Jaroslav Škarvada <jskarvad> | ||||
| Status: | CLOSED ERRATA | QA Contact: | Branislav Blaškovič <bblaskov> | ||||
| Severity: | high | Docs Contact: | |||||
| Priority: | unspecified | ||||||
| Version: | 6.4 | CC: | azelinka, bblaskov, jskarvad, perfbz | ||||
| Target Milestone: | rc | ||||||
| Target Release: | --- | ||||||
| Hardware: | All | ||||||
| OS: | Linux | ||||||
| Whiteboard: | |||||||
| Fixed In Version: | tuned-0.2.19-10.el6 | Doc Type: | Bug Fix | ||||
| Doc Text: |
Cause:
Jitter introduced by transparent hugepage kernel thread may interfere with latency-sensitive applications.
Consequence:
Increased latency/jitter.
Fix:
Disabled transparent hugepages in latency-performance profile.
Result:
Lower latency.
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Story Points: | --- | ||||
| Clone Of: | |||||||
| : | 888793 (view as bug list) | Environment: | |||||
| Last Closed: | 2013-02-21 10:05:27 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: | |||||||
| Bug Blocks: | 888793, 895654, 1064518 | ||||||
| Attachments: |
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This request was evaluated by Red Hat Product Management for inclusion in a Red Hat Enterprise Linux release. Product Management has requested further review of this request by Red Hat Engineering, for potential inclusion in a Red Hat Enterprise Linux release for currently deployed products. This request is not yet committed for inclusion in a release. 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/RHBA-2013-0386.html |
Created attachment 666020 [details] Proposed fix