Bug 173398 - kernel dm: Record I/O timing statistics
Summary: kernel dm: Record I/O timing statistics
Status: CLOSED CURRENTRELEASE
Alias: None
Product: Red Hat Enterprise Linux 4
Classification: Red Hat
Component: kernel
Version: 4.0
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
: ---
Assignee: Alasdair Kergon
QA Contact: Brian Brock
URL:
Whiteboard:
Keywords:
Depends On: 168483
Blocks:
TreeView+ depends on / blocked
 
Reported: 2005-11-16 22:56 UTC by Alasdair Kergon
Modified: 2007-11-30 22:07 UTC (History)
3 users (show)

(edit)
Clone Of:
(edit)
Last Closed: 2006-03-24 15:35:07 UTC


Attachments (Terms of Use)

Description Alasdair Kergon 2005-11-16 22:56:14 UTC
Also store time-related disk stats.

The start time is added to struct dm_io, an existing structure
allocated privately internally within dm and attached to each
incoming bio.

Comment 2 Jun'ichi Nomura (Red Hat) 2005-11-18 19:46:23 UTC
Test case was posted in Comment#18 of BZ#168483.



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