Date: Mon, 27 Apr 2026 13:25:10 +0300 From: Christos Chatzaras <chris@cretaforce.gr> To: questions@freebsd.org Subject: Re: 14.4 High CPU ARC issue Message-ID: <173F9AF4-E708-4D18-8A8F-F7D571C707E9@cretaforce.gr> In-Reply-To: <5e2170f3-a789-48c8-8bd8-4dfbd842602c@ifdnrg.com>
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> On 27 Apr 2026, at 12:18, Paul Macdonald <paul@ifdnrg.com> wrote: > > Posting in case it helps someone. > > We had a a couple of boxes displaying unusally high cpu ( specifically system loads) > > After spotting the link below, we resolved by increasing the ARC max > > https://forums.freebsd.org/threads/high-cpu-and-severe-slowdown-on-freebsd-14-4-openzfs-2-2-9-with-lower-vfs-zfs-arc-max.102233/ I am the one who created that FreeBSD forum thread. I also opened a bug report with OpenZFS here: https://github.com/openzfs/zfs/issues/18397 In my case, to fix the issue I disabled setting a custom value for vfs.zfs.arc.maxhome | help
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