freebsd-skq/sys/cddl
avg e2d6ebec55 l2arc_write_buffers: reduce headroom value
FreeBSD has ARC_BUFC_NUMMETADATALISTS metadata lists and ARC_BUFC_NUMDATALISTS
data lists (currently both are 16) while illumos has just a single list
of each kind.

headroom determines how much data is scanned on a single list
during each run of the l2arc feed thread.
Because FreeBSD has more lists we proportionally decrease the limit.

Reviewed by:	Brendan Gregg (earlier version)
MFC after:	2 weeks
Sponsored by:	HybridCluster
2014-10-07 16:08:21 +00:00
..
boot/zfs Diff reduction with kernel code: instruct the compiler that the data of 2014-10-02 00:13:08 +00:00
compat/opensolaris make userland __assfail from opensolaris compat honor 'aok' variable 2014-10-07 14:15:50 +00:00
contrib/opensolaris l2arc_write_buffers: reduce headroom value 2014-10-07 16:08:21 +00:00
dev Fix the stack tracing for dtrace/powerpc. 2014-09-17 02:43:47 +00:00