From owner-freebsd-fs@FreeBSD.ORG Thu Jul 21 19:35:14 2011 Return-Path: Delivered-To: freebsd-fs@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 2C556106566C for ; Thu, 21 Jul 2011 19:35:14 +0000 (UTC) (envelope-from ivoras@gmail.com) Received: from mail-gy0-f182.google.com (mail-gy0-f182.google.com [209.85.160.182]) by mx1.freebsd.org (Postfix) with ESMTP id DCF758FC15 for ; Thu, 21 Jul 2011 19:35:13 +0000 (UTC) Received: by gyf3 with SMTP id 3so965979gyf.13 for ; Thu, 21 Jul 2011 12:35:13 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=mime-version:sender:in-reply-to:references:from:date :x-google-sender-auth:message-id:subject:to:cc:content-type :content-transfer-encoding; bh=jnL5Id2o71AST+GS5CEmDp9/rDZGRez1dr+w1sMmGAs=; b=GFuE0e6PcSsfI/7iWaS2uYwsP7V2o06HRQnBCjJr3SLI6rQT5XN3TG4in24FrQumlO MXXJeon6kaGeVxq0PNbt1ajsneN1hKck9d/7PjdehPTQbb5nTrI+lBP0beaiE8IVbctA UYgQYphT/mtKJlW+thwQshCX9uH27H4DSE0Ls= Received: by 10.100.52.3 with SMTP id z3mr706405anz.127.1311276913131; Thu, 21 Jul 2011 12:35:13 -0700 (PDT) MIME-Version: 1.0 Sender: ivoras@gmail.com Received: by 10.100.198.5 with HTTP; Thu, 21 Jul 2011 12:34:33 -0700 (PDT) In-Reply-To: References: <13577F3E-DE59-44F4-98F7-9587E26499B8@gmail.com> From: Ivan Voras Date: Thu, 21 Jul 2011 21:34:33 +0200 X-Google-Sender-Auth: Upz8yv_0HHkV7vN6nuFATF6Itec Message-ID: To: David P Discher Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Cc: freebsd-fs@freebsd.org Subject: Re: ZFS and large directories - caveat report X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 21 Jul 2011 19:35:14 -0000 On 21 July 2011 20:48, David P Discher wrote: > > Ivan - > > What's your uptime ? Currently about a day since other people rebooted the server in panic. > Are you using l2 arc ? As a separate device? No. > what is the value of 'sysctl kstat.zfs.misc.arcstats.evict_skip' ? > =C2=A0is this increasing quickly ? www:~> sysctl kstat.zfs.misc.arcstats.evict_skip kstat.zfs.misc.arcstats.evict_skip: 4442021 www:~> sysctl kstat.zfs.misc.arcstats.evict_skip kstat.zfs.misc.arcstats.evict_skip: 4442410 It increases (like the two values I've given) about every 5 seconds, which would mean approx. 70 per second. > How much cpu are the 'arc_reclaim_thread' and 'l2arc_feed_thread' taking = up ? > =C2=A0top -SHb 500 | grep arc Almost none. 36 root -8 - 0K 80K arc_re 0 0:41 0.00% {arc_reclaim_thre} 36 root -8 - 0K 80K l2arc_ 0 0:01 0.00% {l2arc_feed_threa}