[LU-1963] Incorrect accounting for srv_hpreq_ratio Created: 17/Sep/12 Updated: 21/Nov/12 Resolved: 07/Oct/12 |
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| Status: | Resolved |
| Project: | Lustre |
| Component/s: | None |
| Affects Version/s: | None |
| Fix Version/s: | Lustre 2.4.0 |
| Type: | Bug | Priority: | Minor |
| Reporter: | Andriy Skulysh | Assignee: | Keith Mannthey (Inactive) |
| Resolution: | Fixed | Votes: | 0 |
| Labels: | patch | ||
| Severity: | 3 |
| Rank (Obsolete): | 4402 |
| Description |
|
Allow one thread to ignore srv_hpreq_ratio and thus always handle HP requests. |
| Comments |
| Comment by Andriy Skulysh [ 17/Sep/12 ] |
| Comment by Nathan Rutman [ 17/Sep/12 ] |
|
Xyratex MRP-661 |
| Comment by Nathan Rutman [ 05/Oct/12 ] |
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If all threads are blocked (e.g. waiting for lock callbacks) except for the one remaining HP thread, then the hpreq_ratio mechanism will prevent more than ratio HP rpc's from being handled, thus preventing this last thread from doing anything. |
| Comment by Peter Jones [ 07/Oct/12 ] |
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Landed for 2.4 |