Date: Sat, 09 Dec 2017 21:58:53 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-fs@FreeBSD.org Subject: [Bug 224080] ZFS: "arc_dnlc_evicts_thr" + "arc_reclaim_thread" - high CPU load during poudriere build... Message-ID: <bug-224080-3630-LfVxU408KE@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-224080-3630@https.bugs.freebsd.org/bugzilla/> References: <bug-224080-3630@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D224080 --- Comment #30 from Cy Schubert <cy@FreeBSD.org> --- With r326347 removed and kern_size, kern_size_max and arc_max tunables remo= ved from loader.conf: Laptop w 8 GB with two processes each of tar of /usr/src and /usr/obj and buildworld/buildkernel -DNO_CLEAN and firefox: CPU: 2.7% user, 95.0% nice, 2.1% system, 0.1% interrupt, 0.0% idle Mem: 617M Active, 67M Inact, 204M Laundry, 6505M Wired, 144M Buf, 369M Free ARC: 4879M Total, 1830M MFU, 2630M MRU, 21M Anon, 54M Header, 343M Other 3983M Compressed, 10G Uncompressed, 2.69:1 Ratio Swap: 12G Total, 382M Used, 12G Free, 3% Inuse, 128K In slippy$ sysctl vm.kmem_size=20=20=20=20 vm.kmem_size: 8138752000 slippy$ sysctl vm.kmem_size_max vm.kmem_size_max: 1319413950874 slippy$ sysctl hw.physmem hw.physmem: 8365899776 slippy$ sysctl vfs.zfs.arc_max=20 vfs.zfs.arc_max: 7065010176 slippy$=20 Server machine in basement with 8 GB also running two processes each of tar= of /usr/src and /usr/obj and buildworld/buildkernel -DNO_CLEAN, no firefox: CPU: 0.0% user, 97.0% nice, 2.6% system, 0.4% interrupt, 0.0% idle Mem: 257M Active, 246M Inact, 36K Laundry, 6690M Wired, 110M Buf, 746M Free ARC: 5153M Total, 1262M MFU, 3472M MRU, 20M Anon, 53M Header, 346M Other 4364M Compressed, 11G Uncompressed, 2.51:1 Ratio Swap: 20G Total, 95M Used, 20G Free cwsys$ sysctl vm.kmem_size=20=20=20=20 vm.kmem_size: 8325844992 cwsys$ sysctl vm.kmem_size_max vm.kmem_size_max: 1319413950874 cwsys$ sysctl hw.physmem hw.physmem: 8566390784 cwsys$ sysctl vfs.zfs.arc_max=20=20 vfs.zfs.arc_max: 7252103168 cwsys$=20 This is also with additional patch discussed in comment #26 removed. --=20 You are receiving this mail because: You are the assignee for the bug.=
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