mirror_zfs/man/man4
shodanshok 77a797a382
Enable L2 cache of all (MRU+MFU) metadata but MFU data only
`l2arc_mfuonly` was added to avoid wasting L2 ARC on read-once MRU
data and metadata. However it can be useful to cache as much
metadata as possible while, at the same time, restricting data
cache to MFU buffers only.

This patch allow for such behavior by setting `l2arc_mfuonly` to 2
(or higher). The list of possible values is the following:
0: cache both MRU and MFU for both data and metadata;
1: cache only MFU for both data and metadata;
2: cache both MRU and MFU for metadata, but only MFU for data.

Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Gionatan Danti <g.danti@assyoma.it>
Closes #16343 
Closes #16402
2024-08-16 13:34:07 -07:00
..
spl.4 Linux: Cleanup taskq threads spawn/exit 2024-02-13 11:15:16 -08:00
zfs.4 Enable L2 cache of all (MRU+MFU) metadata but MFU data only 2024-08-16 13:34:07 -07:00