diff options
| author | Yamin Friedman <[email protected]> | 2019-10-07 16:59:32 +0300 |
|---|---|---|
| committer | Jason Gunthorpe <[email protected]> | 2019-10-22 14:26:52 -0300 |
| commit | 00bd1439f464cfac3c60f6eabfe209b8a52e8194 (patch) | |
| tree | 8fd186b86ac484edee64b6f9d541e3d85a1a9a26 /tools/perf/scripts/python | |
| parent | 7d47433cf74f942a414171867d89c08640cfef45 (diff) | |
RDMA/rw: Support threshold for registration vs scattering to local pages
If there are more scatter entries than the recommended limit provided by
the ib device, UMR registration is used. This will provide optimal
performance when performing large RDMA READs over devices that advertise
the threshold capability.
With ConnectX-5 running NVMeoF RDMA with FIO single QP 128KB writes:
Without use of cap: 70Gb/sec
With use of cap: 84Gb/sec
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Yamin Friedman <[email protected]>
Reviewed-by: Or Gerlitz <[email protected]>
Signed-off-by: Leon Romanovsky <[email protected]>
Reviewed-by: Christoph Hellwig <[email protected]>
Signed-off-by: Jason Gunthorpe <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python')
0 files changed, 0 insertions, 0 deletions