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| author |   Mike Christie <michael.christie@oracle.com> | 2023-12-13 23:26:49 -0600 |
|---|---|---|
| committer |   Michael S. Tsirkin <mst@redhat.com> | 2024-01-10 13:01:37 -0500 |
| commit | 95e7249691f082a5178d4d6f60fcdee91da458ab (patch) | |
| tree | 4b88d7aacf8cf19adace6b0b5ac94facbe0acb98 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | virtio_pmem: support feature SHMEM_REGION (diff) | |
| download | linux-rng-95e7249691f082a5178d4d6f60fcdee91da458ab.tar.xz linux-rng-95e7249691f082a5178d4d6f60fcdee91da458ab.zip | |
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 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions