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| author | Jeff Moyer <jmoyer@redhat.com> | 2015-08-13 20:57:57 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2015-08-18 22:21:15 +0200 |
| commit | d2be537c3ba3568acd79cd178327b842e60d035e (patch) | |
| tree | 56642354abf2b2a624615d01cabda62f5cdf7dba /drivers | |
| parent | Revert "block: remove artifical max_hw_sectors cap" (diff) | |
| download | linux-d2be537c3ba3568acd79cd178327b842e60d035e.tar.xz linux-d2be537c3ba3568acd79cd178327b842e60d035e.zip | |
block: bump BLK_DEF_MAX_SECTORS to 2560
A value of 2560 (1280k) will accommodate a 10-data-disk stripe
write with chunk size 128k. In the testing I've done using
iozone, fio, and aio-stress across a number of different storage
devices, a value of 1280 does not show a big performance
difference from 512, but will hopefully help software RAID
setups using SATA disks, as reported by Christoph.
NOTE: drivers/block/aoe/aoeblk.c sets its own max_hw_sectors_kb to
BLK_DEF_MAX_SECTORS. So, this patch essentially changes aeoblk to
Use a larger maximum sector size, and I did not test this.
Signed-off-by: Jeff Moyer <jmoyer@redhat.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'drivers')
0 files changed, 0 insertions, 0 deletions