Re: Weird regression in 14.4 wrt ZFS and/or vnodes
"Patrick M. Hausen" <[email protected]>
| Newsgroups | gmane.os.freebsd.stable |
|---|---|
| Message-ID | <[email protected]> |
Hi all, > Am 12.08.2026 um 21:59 schrieb Patrick M. Hausen <[email protected]>: > To make a long story short - picture a system with 192 GB of physical memory and a pool built > from a single mirror vdev (SSD). > > - sysctl vfs.zfs.arc.max=34359738368 # (32 G) --> system comes to a crawl with all cores busy in system > - sysctl vfs.zfs.arc.max=68719476736 # (64 G) --> system runs just fine like it did all the time before Addendum: on a system with 128 G of physical memory the performance seems to be fine with 32 G but pathological with 16 G. Kind regards, Patrick -- punkt.de GmbH Patrick M. Hausen .infrastructure Sophienstr. 187 76185 Karlsruhe Tel. +49 721 9109500 https://infrastructure.punkt.de [email protected] AG Mannheim 108285 Geschäftsführer: Daniel Lienert, Fabian Stein