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| author | Mike Christie <michael.christie@oracle.com> | 2021-02-27 11:00:03 -0600 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2021-03-04 17:37:02 -0500 |
| commit | 415ccd9811da38aed04f54051c8ae87699c4e6c2 (patch) | |
| tree | 723d729ea97b90c40fec06062324c9c0d913673e /include | |
| parent | 302990ac3b1b1a2b7b66f59a5c88038a51fbe18e (diff) | |
scsi: target: iblock: Add backend plug/unplug callouts
This patch adds plug/unplug callouts for iblock. For an initiator driver
like iSCSI which wants to pass multiple cmds to its xmit thread instead of
one cmd at a time, this increases IOPS by around 10% with vhost-scsi
(combined with the last patches we can see a total 40-50% increase). For
driver combos like tcm_loop and faster drivers like the iSER initiator, we
can still see IOPS increase by 20-30% when tcm_loop's nr_hw_queues setting
is also increased.
Link: https://lore.kernel.org/r/20210227170006.5077-23-michael.christie@oracle.com
Signed-off-by: Mike Christie <michael.christie@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'include')
0 files changed, 0 insertions, 0 deletions