Date: Mon, 29 Mar 2021 08:45:45 +0200 From: Andrea Venturoli <ml@netfence.it> To: freebsd-current@freebsd.org Subject: Re: Strange behavior after running under high load Message-ID: <d72a7ff2-4b08-524e-5718-8378d2af9e7f@netfence.it> In-Reply-To: <58bea0f0-5c3d-4263-ebee-f939a7e169e9@freebsd.org> References: <58bea0f0-5c3d-4263-ebee-f939a7e169e9@freebsd.org>
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On 3/28/21 4:39 PM, Stefan Esser wrote: > After a period of high load, my now idle system needs 4 to 10 seconds to > run any trivial command - even after 20 minutes of no load ... High CPU load or high disk load? ZFS? Snapshots? 12.x? 13.x? I've seen something similar: after a high load period, system crawled so much that services were not answering in a reasonable time (e.g. mail would fail with "no such mailbox"!). Even rebooting didn't fix it, until I deleted some autosnapshots. top or other tools would show no disk activity, although the disks were working as mad. Not sure it's the same case you experienced, though.
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