Date: Tue, 08 Feb 2011 19:44:06 +0100 From: Bartosz Stec <admin@kkip.pl> To: Martin Matuska <mm@FreeBSD.org> Cc: freebsd-fs@freebsd.org Subject: Re: Memory leak in ZFS? Message-ID: <4D518EF6.7000408@kkip.pl> In-Reply-To: <4D5138D6.6020007@FreeBSD.org> References: <AANLkTi=8fFwiaQ4%2Bm_cWFkXwpa4_W0_DDV2aW8vyNU4E@mail.gmail.com> <op.vqjyb21daevz08@ghost-pc.home.lan> <4D510BBB.1060708@kkip.pl> <20110208102727.GA8555@icarus.home.lan> <4D5138D6.6020007@FreeBSD.org>
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W dniu 2011-02-08 13:36, Martin Matuska pisze: > I am using ZFS and sendfile(2) with apache, lighttpd, nginx and on > FreeBSD 8.2-RC (v15 or with ZFS v28 patch). The systems concerned are > quite busy. > E.g. lighttpd servers delivering 30-50 Megabytes per second (half a > gigabit) or samba servers delivering to hundreds of users. > > Since FreeBSD 8.1, really a lot of bugfixes have been ported to ZFS > including very important sendfile(2) fixes and I highly recommend > upgrading to 8.2 or 8-STABLE. > As of v28, I am using the patch for 8-STABLE on several production servers. > > When 8.2-RELEASE is out, I plan to put a v28 patch + v28 binary upgrade > kit on my webpage. > > As of the memory usage shown by top(1), I have noticed that memory used > by some programs using IPC shared memory (e.g. postgresql) do not show > up in the counts. > After stopping the program the count is "fixed" again. > This machine was rebuilded from fresh sources two days ago, so whatever this bug is, it must be quite new (probably appeared in january 2011). By the way, I wrote (very) simple script for myself, quite helpful with leakage monitoring. Maybe you'll find it useful too if you're experiencing same issue: http://pastebin.com/sQUyQbmm -- Bartosz Stec
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