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Bug #6795

closed

osd: 'tell bench' write size argument is ignored

Added by Josh Durgin over 10 years ago. Updated over 10 years ago.

Status:
Resolved
Priority:
High
Assignee:
Josh Durgin
Category:
OSD
Target version:
-
% Done:

0%

Source:
Support
Tags:
Backport:
emperor, dumpling
Regression:
Severity:
3 - minor
Reviewed:
Affected Versions:
ceph-qa-suite:
Pull request ID:
Crash signature (v1):
Crash signature (v2):

Description

osd bench is supposed to take a second argument as the block size in bytes, but the default block size of 4MB is always used:

$ ceph tell osd.* bench 102400 4096
{ "bytes_written": 102400,
  "blocksize": 4194304,
  "bytes_per_sec": "1133884.000000"}

This can be quite useful for detecting slow OSDs, and it's best to see which OSDs are slow on particular workloads, not just 4MB writes.

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 #2

Updated by Josh Durgin over 10 years ago

  • Status changed from Fix Under Review to Resolved
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