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Bug #5175
closedimplement dmu_read_uio_dbuf() to improve cached read performance
Start date:
2014-09-17
Due date:
% Done:
100%
Estimated time:
Difficulty:
Medium
Tags:
needs-triage
Gerrit CR:
Description
On a synthetic benchmark of cached reads of 8k blocks, lots of time is spent
holding the dnode. We should implement and use a dmu_read_uio_dbuf() that
takes the dbuf rather than the object ID, analogous to dmu_write_uio_dbuf().
Tests show that this results in a ~10% performance improvement.
Updated by Electric Monk over 7 years ago
- Status changed from New to Closed
- % Done changed from 0 to 100
git commit f8554bb92be6be88a684bea58293b41a6168a538
commit f8554bb92be6be88a684bea58293b41a6168a538 Author: Matthew Ahrens <mahrens@delphix.com> Date: 2014-10-07T18:10:05.000Z 5175 implement dmu_read_uio_dbuf() to improve cached read performance Reviewed by: Adam Leventhal <ahl@delphix.com> Reviewed by: Alex Reece <alex.reece@delphix.com> Reviewed by: George Wilson <george@delphix.com> Reviewed by: Richard Elling <richard.elling@gmail.com> Approved by: Robert Mustacchi <rm@joyent.com>
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