From owner-freebsd-stable@freebsd.org Tue Feb 12 18:38:03 2019 Return-Path: Delivered-To: freebsd-stable@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 3B6AC14F07C3 for ; Tue, 12 Feb 2019 18:38:03 +0000 (UTC) (envelope-from eugen@grosbein.net) Received: from hz.grosbein.net (hz.grosbein.net [IPv6:2a01:4f8:d12:604::2]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "hz.grosbein.net", Issuer "hz.grosbein.net" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id B240573C71 for ; Tue, 12 Feb 2019 18:38:02 +0000 (UTC) (envelope-from eugen@grosbein.net) Received: from eg.sd.rdtc.ru (eg.sd.rdtc.ru [IPv6:2a03:3100:c:13:0:0:0:5]) by hz.grosbein.net (8.15.2/8.15.2) with ESMTPS id x1CIbcL7072910 (version=TLSv1.2 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 12 Feb 2019 19:37:43 +0100 (CET) (envelope-from eugen@grosbein.net) X-Envelope-From: eugen@grosbein.net X-Envelope-To: pi@opsec.eu Received: from [10.58.0.4] ([10.58.0.4]) by eg.sd.rdtc.ru (8.15.2/8.15.2) with ESMTPS id x1CIbbgJ052908 (version=TLSv1.2 cipher=DHE-RSA-AES128-SHA bits=128 verify=NOT); Wed, 13 Feb 2019 01:37:37 +0700 (+07) (envelope-from eugen@grosbein.net) Subject: Re: 11.2-STABLE kernel wired memory leak To: Kurt Jaeger References: <201902121757.x1CHve0h056876@hergotha.csail.mit.edu> <7125e053-5adf-929a-bde6-a64fceae2aaa@grosbein.net> <8a9361fd-4701-4e33-33f0-e4800af7637c@grosbein.net> <20190212182915.GM2748@home.opsec.eu> Cc: Garrett Wollman , freebsd-stable@freebsd.org From: Eugene Grosbein Message-ID: <80e414af-058c-5f84-0f9b-36529d5e06b4@grosbein.net> Date: Wed, 13 Feb 2019 01:37:31 +0700 User-Agent: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:45.0) Gecko/20100101 Thunderbird/45.8.0 MIME-Version: 1.0 In-Reply-To: <20190212182915.GM2748@home.opsec.eu> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit X-Spam-Status: No, score=0.3 required=5.0 tests=BAYES_00,LOCAL_FROM,SPF_PASS autolearn=no autolearn_force=no version=3.4.2 X-Spam-Report: * -2.3 BAYES_00 BODY: Bayes spam probability is 0 to 1% * [score: 0.0000] * -0.0 SPF_PASS SPF: sender matches SPF record * 2.6 LOCAL_FROM From my domains X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on hz.grosbein.net X-Rspamd-Queue-Id: B240573C71 X-Spamd-Bar: ------ Authentication-Results: mx1.freebsd.org X-Spamd-Result: default: False [-6.98 / 15.00]; NEURAL_HAM_MEDIUM(-1.00)[-1.000,0]; NEURAL_HAM_SHORT(-0.99)[-0.985,0]; REPLY(-4.00)[]; NEURAL_HAM_LONG(-1.00)[-1.000,0] X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 12 Feb 2019 18:38:03 -0000 13.02.2019 1:29, Kurt Jaeger wrote: > On a 8 GB 11.2p8 box doing mostly routing: > > 42.3047 abd_chunk > 40 zio_buf_131072 > 31.75 zio_data_buf_131072 > 19.8901 swblk > 12.9224 RADIX NODE > 11.7344 zio_buf_16384 > 10.0664 zio_data_buf_12288 > 9.84375 zio_data_buf_40960 > 9.375 zio_data_buf_81920 > 7.96875 zio_data_buf_98304 > > So, how do I understand this ? Please note that I use: > > vfs.zfs.arc_max=1216348160 Each line shows how many megabytes is allocated but currently unused by corresponding UMA zone (and unavailable for other consumers). Your numbers are pretty low, you have nothing to worry about IMHO. I have hundreds of megabytes and gigabytes there.