Ivan Betsis
c818233b41
nvmf/rdma: Add WR batch rdma new transport option
With x86 and low queue depths with multiple QPs/initiators
there is a benefit from disable batch when we have randread IO pattern.
Testing environment: x86, Intel(R) Xeon(R) Silver 4116 CPU @ 2.10GH
Several results:
init_cores | QD | BS | Avg IOPs/BW without batch | Avg IOPS/BW with batch
8 cores | 4 | 4K | 1870087 / 7305 | 1594014 / 6226
8 cores | 8 | 4K | 1853573 / 7240 | 1576400 / 6157
8 cores | 16 | 4K | 1819643 / 7108 | 1569487 / 6130
8 cores | 32 | 4K | 1815467 / 7092 | 1569909 / 6132
16 cores | 4 | 4K | 1908018 / 7453 | 1566843 / 6120
16 cores | 8 | 4K | 1906081 / 7446 | 1562110 / 6102
16 cores | 16 | 4K | 1880706 / 7346 | 1555060 / 6074
16 cores | 32 | 4K | 1835878 / 7171 | 1548156 / 6046
Signed-off-by: Ivan Betsis <c_ivanb@mellanox.com>
Signed-off-by: Evgeniy Kochetov <evgeniik@mellanox.com>
Signed-off-by: Alexey Marchuk <alexeymar@mellanox.com>
Signed-off-by: Sasha Kotchubievsky <sashakot@mellanox.com>
Change-Id: Icdbbbdf83f137eb4f05bd2063268ee2a7d87335a
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/924
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: Broadcom CI
2020-10-21 02:25:32 +00:00
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