From owner-freebsd-stable@FreeBSD.ORG Mon Mar 26 08:56:41 2012 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 10E8A106566C for ; Mon, 26 Mar 2012 08:56:41 +0000 (UTC) (envelope-from lists@opsec.eu) Received: from home.opsec.eu (home.opsec.eu [IPv6:2001:14f8:200::1]) by mx1.freebsd.org (Postfix) with ESMTP id BCFDD8FC0A for ; Mon, 26 Mar 2012 08:56:40 +0000 (UTC) Received: from pi by home.opsec.eu with local (Exim 4.77 (FreeBSD)) (envelope-from ) id 1SC5jE-0000Yq-8z for freebsd-stable@freebsd.org; Mon, 26 Mar 2012 10:56:40 +0200 Date: Mon, 26 Mar 2012 10:56:40 +0200 From: Kurt Jaeger To: freebsd-stable@freebsd.org Message-ID: <20120326085640.GB5335@home.opsec.eu> References: <4F7019FC.4090907@ShaneWare.Biz> <4660483b96cf883fd66b46f4578d1def.squirrel@mail.digital-infotech.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4660483b96cf883fd66b46f4578d1def.squirrel@mail.digital-infotech.net> Subject: Re: Too many open files X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 26 Mar 2012 08:56:41 -0000 Hi! > > From knowing that you have too many files open you can increase the > > maxfile numbers - but if you want to know what uses them try this - > > > > lsof -n | awk '{print $2 "\t" $1}' | sort | uniq -c | sort On my system, it shows interesting numbers for firefox-instances: 3895 4150 firefox-b 4160 72958 firefox-b 4240 3594 firefox-b 4320 4232 firefox-b 4431 89391 firefox-b This seems to come from threads, where lsof shows the same descriptor as open for multiple times, even if it comes from the same process memory. For example for pid 4232: lsof -n | grep icon-theme.cache | grep 4232 | wc -l firefox-b 4232 pi txt VREG 0,102 10784 924293 /usr/local/share/icons/hicolor/icon-theme.cache This happens on 8.1-REL-p5 amd64. So the method is not fail-safe for the real number of open files. -- pi@opsec.eu +49 171 3101372 8 years to go !