Date: Tue, 28 Nov 2017 22:27:29 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-fs@FreeBSD.org Subject: [Bug 209571] ZFS and NVMe performing poorly. TRIM requests stall I/O activity Message-ID: <bug-209571-3630-GGNQJ8VIQ3@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-209571-3630@https.bugs.freebsd.org/bugzilla/>
index | next in thread | previous in thread | raw e-mail
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=209571 Jim Phillips <jim@ks.uiuc.edu> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |jim@ks.uiuc.edu --- Comment #3 from Jim Phillips <jim@ks.uiuc.edu> --- I'm going to post this as a separate issue, but will add it here since it is related. We were seeing non-NVMe SSDs on ZFS timing out on TRIM operations and have been able to greatly reduce the incidence by setting (for all drives) sysctl kern.cam.da.0.delete_max=536870912 based on the advice here: https://lists.freebsd.org/pipermail/freebsd-scsi/2015-July/006777.html -- You are receiving this mail because: You are the assignee for the bug.home | help
Want to link to this message? Use this
URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?bug-209571-3630-GGNQJ8VIQ3>