[LU-16011] LNet selftest should use a preallocated bulk on the server side. Created: 14/Jul/22 Updated: 13/Mar/23 Resolved: 01/Sep/22 |
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| Status: | Resolved |
| Project: | Lustre |
| Component/s: | None |
| Affects Version/s: | None |
| Fix Version/s: | Lustre 2.16.0 |
| Type: | Improvement | Priority: | Critical |
| Reporter: | Alexey Lyashkov | Assignee: | Alexey Lyashkov |
| Resolution: | Fixed | Votes: | 0 |
| Labels: | None | ||
| Rank (Obsolete): | 9223372036854775807 |
| Description |
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Cray testing have show an LST limited with 35Gb/s 1M bulk transfers with 3 rail server and 16 HDR clients. During profile, I found a LST is cpu bound with page cache operations, because server side don't have an preallocated bulk's for transfers. LNet Bandwidth of servers] [R] Avg: 11.28 MB/s Min: 11.28 MB/s Max: 11.28 MB/s [W] Avg: 73949.30 MB/s Min: 73949.30 MB/s Max: 73949.30 MB/s |
| Comments |
| Comment by Gerrit Updater [ 14/Jul/22 ] |
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"Alexey Lyashkov <alexey.lyashkov@hpe.com>" uploaded a new patch: https://review.whamcloud.com/47952 |
| Comment by Gerrit Updater [ 01/Sep/22 ] |
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"Oleg Drokin <green@whamcloud.com>" merged in patch https://review.whamcloud.com/47952/ |
| Comment by Peter Jones [ 01/Sep/22 ] |
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Landed for 2.16 |
| Comment by Gerrit Updater [ 13/Mar/23 ] |
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"Alexey Lyashkov <alexey.lyashkov@hpe.com>" uploaded a new patch: https://review.whamcloud.com/c/fs/lustre-release/+/50276 |