zfs/module/os
Christian Schwarz e439ee83c1
linux: zvol: avoid heap allocation for zvol_request_sync=1
The spl_kmem_alloc showed up in some flamegraphs in a single-threaded
4k sync write workload at 85k IOPS on an
Intel(R) Xeon(R) Silver 4215 CPU @ 2.50GHz.
Certainly not a huge win but I believe the change is clean and
easy to maintain down the road.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Matthew Ahrens <mahrens@delphix.com>
Signed-off-by: Christian Schwarz <me@cschwarz.com>
Closes #11666
2021-03-03 08:15:28 -08:00
..
freebsd Fix assert in FreeBSD-specific dmu_read_pages 2021-02-27 17:23:09 -08:00
linux linux: zvol: avoid heap allocation for zvol_request_sync=1 2021-03-03 08:15:28 -08:00