From owner-freebsd-fs@freebsd.org Thu Dec 7 06:12:15 2017 Return-Path: Delivered-To: freebsd-fs@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id B6B24E9E6F8 for ; Thu, 7 Dec 2017 06:12:15 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2001:1900:2254:206a::16:76]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id A494A78518 for ; Thu, 7 Dec 2017 06:12:15 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from bugs.freebsd.org ([127.0.1.118]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id vB76CFk4048466 for ; Thu, 7 Dec 2017 06:12:15 GMT (envelope-from bugzilla-noreply@freebsd.org) 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... Date: Thu, 07 Dec 2017 06:12:15 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: CURRENT X-Bugzilla-Keywords: regression X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: cy@FreeBSD.org X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: freebsd-fs@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.25 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 07 Dec 2017 06:12:15 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D224080 --- Comment #13 from Cy Schubert --- Looking at the workloads of my four systems, I'm not entirely convinced reverting r326346 will make as much difference as removing r326347 did. Tho= ugh ARC is more in line with as it was before r326347, MFU fluctuates widely, f= rom 55M to 500M. Better than single digit MB before. I will see if reverting r326346 makes a difference too. last pid: 50534; load averages: 1.32, 0.94, 0.96 up 0+01:05:30 22:0= 7:05 123 processes: 2 running, 121 sleeping CPU: 1.6% user, 4.2% nice, 5.0% system, 0.6% interrupt, 88.7% idle Mem: 1018M Active, 1310M Inact, 3670M Wired, 178M Buf, 1763M Free ARC: 1327M Total, 177M MFU, 651M MRU, 15M Anon, 24M Header, 460M Other 283M Compressed, 943M Uncompressed, 3.33:1 Ratio Swap: 12G Total, 12G Free PID USERNAME THR PRI NICE SIZE RES STATE C TIME WCPU CO= MMAN 2503 root 1 24 0 58704K 35612K select 1 2:16 7.25% Xo= rg 2658 cy 5 22 0 93644K 46620K CPU0 0 2:16 6.99% ma= te-t 50487 root 1 4 10 10476K 1836K select 2 0:00 1.53% ma= ke 49701 root 1 52 10 17436K 9024K select 1 0:00 0.16% ma= ke 2591 cy 1 20 0 16804K 6684K select 2 0:02 0.08% xs= cree 50489 root 1 52 10 11668K 3172K wait 3 0:00 0.08% sh 2560 cy 1 20 0 21684K 9336K select 0 0:03 0.07% mwm 23860 cy 1 20 0 14168K 4388K CPU3 3 0:01 0.07% top 50486 root 1 52 10 11688K 3176K wait 2 0:00 0.07% sh 25264 root 1 30 10 10224K 1388K select 1 0:00 0.07% ma= ke 48259 root 1 30 10 10956K 2336K select 2 0:00 0.06% ma= ke 46730 root 1 30 10 11036K 2344K select 1 0:00 0.06% ma= ke 3041 cy 1 20 0 12708K 3704K select 0 0:01 0.05% kr= logi 25290 root 1 30 10 11128K 2416K select 2 0:00 0.05% ma= ke 49044 root 1 20 0 11040K 2656K select 0 0:00 0.04% mo= used --=20 You are receiving this mail because: You are the assignee for the bug.=