https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=231117
punkt.de Hosting Team <m...@punkt.de> changed:
What |Removed |Added
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CC| |m...@punkt.de
--- Comment #2 from punkt.de Hosting Team <m...@punkt.de> ---
Hi Niels,
being more of an operator than a developer I don't have any insight into the
root cause of this, but we run a ton of jails and a couple of bhyve VMs on
FreeBSD in production and we found that
* The automatic adjustment of ARC size under memory pressure is still not
working perfectly.
* It helps to statically limit the ARC size (vfs.zfs.arc_max) on the host
system - we use a quarter of physical memory, so VMs have some breathing room.
* I would definitely limit the ARC size inside each VM
* Are you running the virtual disks as AHCI or virtio? We use virtio
throughout.
HTH
Patrick
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