Date: Mon, 13 Aug 2018 10:12:26 -0400 From: Mike Tancsa <mike@sentex.net> To: Marco Steinbach <coco@executive-computing.de>, freebsd-stable@freebsd.org Subject: Re: Jails on ZFS yielding 100% load on gstat Message-ID: <44a44e1d-ab92-38ec-e990-8fec925fb345@sentex.net> In-Reply-To: <20180812205047.00002767@executive-computing.de> References: <20180812205047.00002767@executive-computing.de>
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On 8/12/2018 2:50 PM, Marco Steinbach wrote: > > These loads lead to the system suffering from very much delayed > responses to even the basic task of echoing characters entered on the > console, consequently rendering the services offered unusable to the > users because of the delays. Do you have a LOT of files and or metadata ? Have a look at the cache stats to see if you are perhaps grinding away on big directory lookups? Install sysutils/zfs-stats and post zfs-stats -a Also, does top -mio -I shed any light as to whats taking up the disk io ? ---Mike -- ------------------- Mike Tancsa, tel +1 519 651 3400 x203 Sentex Communications, mike@sentex.net Providing Internet services since 1994 www.sentex.net Cambridge, Ontario Canada
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