Date: Fri, 22 Mar 2024 18:36:48 +0000 From: bugzilla-noreply@freebsd.org To: fs@FreeBSD.org Subject: [Bug 275594] High CPU usage by arc_prune; analysis and fix Message-ID: <bug-275594-3630-SrD77sLQvT@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-275594-3630@https.bugs.freebsd.org/bugzilla/> References: <bug-275594-3630@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D275594 --- Comment #95 from mark burdett <mfburdett@gmail.com> --- After upgrading to 13.3, what I saw, on hardware that occasionally has spik= es of memory usage and is using zfs swap (I know, it's not really recommended = to use swap at all, much less zfs swap :) was that a process would be killed d= ue to slow memory allocation: (mysqld), jid 0, uid 88, was killed: a thread wa= ited too long to allocate a page At this point, mysqld is automatically restarted with much lower memory usa= ge, and thus no need to swap or arc prune, and the problem was temporarily solv= ed.=20 This happened before I had a chance to look at specific parameters, like CPU usage, but I am assuming it might be related to this issue. For more peace= of mind, I made various changes to avoid unexpected high memory usage on this system, and things have been stable. --=20 You are receiving this mail because: You are the assignee for the bug.=
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