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Bug 173398 - kernel dm: Record I/O timing statistics
kernel dm: Record I/O timing statistics
Product: Red Hat Enterprise Linux 4
Classification: Red Hat
Component: kernel (Show other bugs)
All Linux
medium Severity medium
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Assigned To: Alasdair Kergon
Brian Brock
Depends On: 168483
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Reported: 2005-11-16 17:56 EST by Alasdair Kergon
Modified: 2007-11-30 17:07 EST (History)
3 users (show)

See Also:
Fixed In Version: U3
Doc Type: Bug Fix
Doc Text:
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Clone Of:
Last Closed: 2006-03-24 10:35:07 EST
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RHEL 7.3 requirements from Atomic Host:
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Description Alasdair Kergon 2005-11-16 17:56:14 EST
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 14:46:23 EST
Test case was posted in Comment#18 of BZ#168483.

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