freebsd-nq/sys/cddl
Alexander Motin e37d5c12e9 Increase number of write completion threads, matching ZoL.
Our iSCSI benchmarks on a large 80-core system show that previous limit
of 8 threads can be a bottleneck.  At some points this change increases
write IOPS by as much as 50%.  I am still not sure that so many threads
is really required, but we tested lower amounts and got no significant
benefits, while latencies were a bit worse, so decided to not diverge.

MFC after:	1 week
Sponsored by:	iXsystems, Inc.
2020-03-03 15:05:13 +00:00
..
boot/zfs loader: replace zfs_alloc/zfs_free with malloc/free 2020-02-26 18:12:12 +00:00
compat/opensolaris Mark more nodes as CTLFLAG_MPSAFE or CTLFLAG_NEEDGIANT (17 of many) 2020-02-26 14:26:36 +00:00
contrib/opensolaris Increase number of write completion threads, matching ZoL. 2020-03-03 15:05:13 +00:00
dev Clear systrace_args_func when systrace probes are disabled. 2020-02-28 17:04:36 +00:00