Bug #7364
NVMe driver performance can be improved by caching nvme_dma_t structs for PRPL.
Status:
Closed
Priority:
Normal
Assignee:
-
Category:
driver - device drivers
Start date:
2016-09-08
Due date:
% Done:
100%
Estimated time:
Difficulty:
Medium
Tags:
needs-triage
Gerrit CR:
Description
nvme_fill_prp -> nvme_zalloc_dma is hot path in the driver so it makes sense to allocate nvme_dma_t from kmem cache and reuse it later.
My testing showed that the overall performance is improved by 10%.
Updated by Youzhong Yang about 4 years ago
review request:
Updated by Electric Monk about 4 years ago
- Status changed from New to Closed
- % Done changed from 0 to 100
git commit 8834f7ac63a18ac48dfacf20506346d82b04fc14
commit 8834f7ac63a18ac48dfacf20506346d82b04fc14
Author: Youzhong Yang <yyang@mathworks.com>
Date: 2016-09-14T15:44:57.000Z
7364 NVMe driver performance can be improved by caching nvme_dma_t structs for PRPL.
Reviewed by: Hans Rosenfeld <hans.rosenfeld@nexenta.com>
Reviewed by: Robert Mustacchi <rm@joyent.com>
Reviewed by: Garrett D'Amore <garrett@lucera.com>
Approved by: Dan McDonald <danmcd@omniti.com>
Updated by Electric Monk about 4 years ago
git commit b6bc2fd4673eae6c96e2aea9e16105dd32a66b7b
commit b6bc2fd4673eae6c96e2aea9e16105dd32a66b7b
Author: Dan McDonald <danmcd@omniti.com>
Date: 2016-09-14T17:10:21.000Z
7364 NVMe driver performance can be improved by caching nvme_dma_t structs for PRPL. (fix lint)