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Bug #42781

global: disable THP for Ceph daemons

Added by Patrick Donnelly 3 months ago. Updated about 1 month ago.

Status:
Resolved
Priority:
Urgent
Category:
-
Target version:
% Done:

0%

Source:
Development
Tags:
Backport:
nautilus
Regression:
No
Severity:
3 - minor
Reviewed:
Affected Versions:
ceph-qa-suite:
Pull request ID:
Crash signature:

Description

Ceph is known to suffer from memory fragmentation due to transparent huge pages (THP). This is indicated by RSS usage above configured memory targets. Enabling THP is currently discouraged until selective use of THP by Ceph is implemented via madvise.


Related issues

Copied to Ceph - Backport #42818: nautilus: global: disable THP for Ceph daemons Resolved

History

#1 Updated by Patrick Donnelly 3 months ago

  • Project changed from fs to Ceph
  • Status changed from New to In Progress

#2 Updated by Patrick Donnelly 3 months ago

  • Status changed from In Progress to Fix Under Review
  • Pull request ID set to 31582

#3 Updated by Patrick Donnelly 3 months ago

  • Status changed from Fix Under Review to Pending Backport

Note: forgot to link to the tracker ticket from the commit. Oops!

#4 Updated by Patrick Donnelly 3 months ago

  • Copied to Backport #42818: nautilus: global: disable THP for Ceph daemons added

#5 Updated by Nathan Cutler about 1 month ago

  • Status changed from Pending Backport to Resolved

While running with --resolve-parent, the script "backport-create-issue" noticed that all backports of this issue are in status "Resolved" or "Rejected".

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