Date: Wed, 3 Jul 2019 13:43:53 +0200 From: Robert Schulze <rs@bytecamp.net> To: freebsd-questions@freebsd.org Subject: Re: extremely slow disk I/O after updating to 12.0 Message-ID: <5adc029e-198c-5189-cd6c-4fff1e4980f0@bytecamp.net> In-Reply-To: <b76b814f-e440-67a9-5424-4e7c5d03d5ca@malikania.fr> References: <b76b814f-e440-67a9-5424-4e7c5d03d5ca@malikania.fr>
next in thread | previous in thread | raw e-mail | index | archive | help
Hi, Am 03.07.19 um 13:34 schrieb David Demelier: > Hello folks, > > I've upgraded one of my servers to 12.0-RELEASE. Now I'm having > extremely slow performances regarding I/O writes. we have seen a drop in I/O performance beginning with 11.2-RELEASE. Try disabling scattered ABD: sysctl vfs.zfs.abd_scatter_enabled=0 regards, Robert Schulze
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?5adc029e-198c-5189-cd6c-4fff1e4980f0>