[LU-12924] scale precreate_batch for larger OSTs Created: 01/Nov/19 Updated: 01/Nov/19 |
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| Status: | Open |
| Project: | Lustre |
| Component/s: | None |
| Affects Version/s: | None |
| Fix Version/s: | None |
| Type: | Improvement | Priority: | Minor |
| Reporter: | Andreas Dilger | Assignee: | WC Triage |
| Resolution: | Unresolved | Votes: | 0 |
| Labels: | performance | ||
| Issue Links: |
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| Rank (Obsolete): | 9223372036854775807 | ||||||||
| Description |
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Using large capacity OST targets, we frequently increase obdfilter.*.precreate_batch since this appears to improve mdtest benchmark results. Currently the obdfilter.*.precreate_batch values scale somewhat for small capacity OST targets; from 8 (<=1GB OST) to 128 (larger OSTs). However max value of 128 has not changed in several years. mdest benchmarks suggest larger capacity OST targets (e.g. 512T) would benefit from a precreate_batch value of 256 or larger. |
| Comments |
| Comment by Gerrit Updater [ 01/Nov/19 ] |
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Andreas Dilger (adilger@whamcloud.com) uploaded a new patch: https://review.whamcloud.com/36637 |