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| author | Mike Christie <michael.christie@oracle.com> | 2023-12-14 08:26:49 +0300 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2024-01-10 21:01:37 +0300 |
| commit | 95e7249691f082a5178d4d6f60fcdee91da458ab (patch) | |
| tree | 4b88d7aacf8cf19adace6b0b5ac94facbe0acb98 /scripts/gdb/linux/tasks.py | |
| parent | 35967bdcff325f4572b21b0d0005318da7e03f53 (diff) | |
| download | linux-95e7249691f082a5178d4d6f60fcdee91da458ab.tar.xz | |
scsi: virtio_scsi: Add mq_poll support
This adds polling support to virtio-scsi. It's based on and works similar
to virtblk support where we add a module param to specify the number of
poll queues then subtract to calculate the IO queues.
When using 8 poll queues and a vhost worker per queue we see 4K IOPs
with fio:
fio --filename=/dev/sda --direct=1 --rw=randread --bs=4k \
--ioengine=io_uring --hipri --iodepth=128 --numjobs=$NUM_JOBS
increase like:
jobs base poll
1 207K 296K
2 392K 552K
3 581K 860K
4 765K 1235K
5 936K 1598K
6 1104K 1880K
7 1253K 2095K
8 1311k 2187K
Signed-off-by: Mike Christie <michael.christie@oracle.com>
Message-Id: <20231214052649.57743-1-michael.christie@oracle.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'scripts/gdb/linux/tasks.py')
0 files changed, 0 insertions, 0 deletions