[LU-14935] Improve fake i/o performance Created: 12/Aug/21  Updated: 09/Mar/22  Resolved: 31/Jan/22

Status: Resolved
Project: Lustre
Component/s: None
Affects Version/s: None
Fix Version/s: Lustre 2.15.0

Type: Improvement Priority: Minor
Reporter: Patrick Farrell Assignee: Patrick Farrell
Resolution: Fixed Votes: 0
Labels: None

Issue Links:
Related
is related to LU-14919 Crash servers at umount when if fakei... Open
Rank (Obsolete): 9223372036854775807

 Description   

Fake i/o has quite a high CPU cost, probably because it logs to the console.

This can and should be avoided by using the _QUIET version of CFS_FAIL_CHECK.

 Comments   
Comment by Gerrit Updater [ 12/Aug/21 ]

"Patrick Farrell <pfarrell@whamcloud.com>" uploaded a new patch: https://review.whamcloud.com/44651
Subject: LU-14935 tests: Use FAIL_CHECK_QUIET for fake i/o
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: a583cf1062caf4b46b08499f9670bf5787526d55

Comment by Gerrit Updater [ 31/Jan/22 ]

"Oleg Drokin <green@whamcloud.com>" merged in patch https://review.whamcloud.com/44651/
Subject: LU-14935 tests: Use FAIL_CHECK_QUIET for fake i/o
Project: fs/lustre-release
Branch: master
Current Patch Set:
Commit: 890466a32d3e8683a96d5a18e76c0cc704810f5f

Comment by Peter Jones [ 31/Jan/22 ]

Landed for 2.15

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