From owner-freebsd-current@FreeBSD.ORG Sat May 30 16:44:14 2009 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 6EAAE106564A for ; Sat, 30 May 2009 16:44:14 +0000 (UTC) (envelope-from asmrookie@gmail.com) Received: from mail-fx0-f163.google.com (mail-fx0-f163.google.com [209.85.220.163]) by mx1.freebsd.org (Postfix) with ESMTP id F26668FC13 for ; Sat, 30 May 2009 16:44:09 +0000 (UTC) (envelope-from asmrookie@gmail.com) Received: by fxm7 with SMTP id 7so277624fxm.43 for ; Sat, 30 May 2009 09:44:08 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:sender:received:in-reply-to :references:date:x-google-sender-auth:message-id:subject:from:to:cc :content-type:content-transfer-encoding; bh=g79kDagSZDqOBR9OcaKJEe8OMvSJbsx/csR3MN/7lQo=; b=rvwGONTANAeAEsm6cSwlAqMhmcuPp2wFyD9fB7OFtn5VPKlDG4m4oPQWxrv6F7LCvB NihHB5v4Hux6f6Yan8R32ifoj9YxHmG7IIdu/Qt+vKCwn00UXjpuaYlDZMJHcjGdNjZx PrJk6IDnSRJN8jwHRx+TqWA9o87EZafN/RNEs= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:sender:in-reply-to:references:date :x-google-sender-auth:message-id:subject:from:to:cc:content-type :content-transfer-encoding; b=Vj/LiJzvIf/ycZRUz7wZ+5kzBIEX4EDQRy6af1ZbfttFXQT8Z5p9O2YDp49VALLA8T rD1mCZ6ae5TMJTaUwDeofUbG9qPr2HmfVoh7kEzDXan5T5GGrMiel+kYc67kCaAdBE6t PJlDL9+SU9mDK9DDM/g/yOX1xnZ9No/n8VEcQ= MIME-Version: 1.0 Sender: asmrookie@gmail.com Received: by 10.223.123.129 with SMTP id p1mr2586040far.29.1243701848378; Sat, 30 May 2009 09:44:08 -0700 (PDT) In-Reply-To: <4A215D7F.7020807@mail.zedat.fu-berlin.de> References: <4A2120D5.50300@mail.zedat.fu-berlin.de> <3bbf2fe10905300848s6342a7b1l32340baee8e7e8f1@mail.gmail.com> <4A215D7F.7020807@mail.zedat.fu-berlin.de> Date: Sat, 30 May 2009 18:44:08 +0200 X-Google-Sender-Auth: c089cc0f7dfbec1c Message-ID: <3bbf2fe10905300944r96ae931re4475c78d9be3aa8@mail.gmail.com> From: Attilio Rao To: "O. Hartmann" Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Cc: freebsd-current@freebsd.org Subject: Re: signifanctly slowdown of FreeBSD 8.0-CURRENT/amd64 X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 30 May 2009 16:44:14 -0000 2009/5/30 O. Hartmann : > Attilio Rao wrote: >> 2009/5/30 O. Hartmann : >> >>> Hello. >>> I realized a significant slowdown of FreeBSD 8.0-CURRENT/amd64 on every >>> box I run. I have the most recent FreeBSD 8.0-CURRENT/amd64 with custom >>> kernel and switched off every debugging. I see a drastic slowdown >>> whenever heavy I/O on UFS2 and ZFS partitions is performed and whenever >>> some compilation is done (compiling world and kernel). This is horrible >>> on a single core Athlon64 CPU with 2GB RAM as well as on a 4 core Q6600 >>> with 8GB and a server with 2 x 4-cores and 16GB RAM. >>> >>> I can not say clearly whether I/O is the bottleneck. Maybe something >>> with the memory subsystem, when it comes to compiler runs, when no disk >>> I/O is done but the box is still horrible slow. This behaviour occured >>> several weeks ago, not being able to specify it more precisely. >>> >>> AQre there any issues at the moment? >>> >> >> Your kernel is compiled from which date? >> >> Thanks, >> Attilio >> >> >> > Most recent, say: yesterday! As well as world. Can you try to revert only r193011 and see if something changes? Thanks, Attilio -- Peace can only be achieved by understanding - A. Einstein