[LU-16714] make migrate_copy_data use O_DIRECT when appropriate Created: 05/Apr/23 Updated: 18/Jul/23 |
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| Status: | Open |
| Project: | Lustre |
| Component/s: | None |
| Affects Version/s: | None |
| Fix Version/s: | None |
| Type: | Improvement | Priority: | Minor |
| Reporter: | Patrick Farrell | Assignee: | Patrick Farrell |
| Resolution: | Unresolved | Votes: | 0 |
| Labels: | None | ||
| Issue Links: |
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| Rank (Obsolete): | 9223372036854775807 | ||||
| Description |
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In recent Lustre versions, direct I/O is much, much faster for larger sizes. We should take advantage of that in our migrate code. |
| Comments |
| Comment by Gerrit Updater [ 05/Apr/23 ] |
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"Patrick Farrell <pfarrell@whamcloud.com>" uploaded a new patch: https://review.whamcloud.com/c/fs/lustre-release/+/50546 |
| Comment by Gerrit Updater [ 05/Apr/23 ] |
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"Patrick Farrell <pfarrell@whamcloud.com>" uploaded a new patch: https://review.whamcloud.com/c/fs/lustre-release/+/50547 |
| Comment by Nathan Rutman [ 13/Apr/23 ] |
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Were you able to measure the performance impact of this patch? |
| Comment by Gerrit Updater [ 22/Apr/23 ] |
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"Oleg Drokin <green@whamcloud.com>" merged in patch https://review.whamcloud.com/c/fs/lustre-release/+/50546/ |