mirror_zfs/man/man4
Alexander Motin 66b81b3497
ZIL: Reduce maximum size of WR_COPIED to 7.5K
Benchmarks show that at certain write sizes range lock/unlock take
not so much time as extra memory copy.  The exact threshold is not
obvious due to other overheads, but it is definitely lower than
~63KB used before.  Make it configurable, defaulting at 7.5KB,
that is 8KB of nearest malloc() size minus itx and lr structs.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by:	Alexander Motin <mav@FreeBSD.org>
Sponsored by:	iXsystems, Inc.
Closes #15353
2023-10-06 10:09:27 -07:00
..
spl.4 Add a delay to tearing down threads. 2023-06-26 13:57:12 -07:00
zfs.4 ZIL: Reduce maximum size of WR_COPIED to 7.5K 2023-10-06 10:09:27 -07:00