From owner-freebsd-stable@FreeBSD.ORG Wed Mar 11 08:37:15 2009 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 BFD9510656C0 for ; Wed, 11 Mar 2009 08:37:15 +0000 (UTC) (envelope-from pluknet@gmail.com) Received: from fg-out-1718.google.com (fg-out-1718.google.com [72.14.220.154]) by mx1.freebsd.org (Postfix) with ESMTP id 28E7E8FC0C for ; Wed, 11 Mar 2009 08:37:14 +0000 (UTC) (envelope-from pluknet@gmail.com) Received: by fg-out-1718.google.com with SMTP id l26so867650fgb.35 for ; Wed, 11 Mar 2009 01:37:14 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:in-reply-to:references :date:message-id:subject:from:to:cc:content-type :content-transfer-encoding; bh=w9GUZYe3TBb+NI4sOPVekxvJT1QavTS5yNW7tvZr5Qs=; b=mjN++fObTA1ZF2gcf7PJ43PTnmRtGWa5YnMtRh0zE9ncA73XK02mKmVI0TOSvbzyES 7r4rbRk/YSDVgKCkog3odlNwIZjpCTftQ9DP+jBZoulugV23oqHl/gS2vPYy+kpIc5DF rJM8Puqu1j6aabv3ayvjFMjNXLGvTpQWsd4EY= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type:content-transfer-encoding; b=fvexlyUkC/IdtLS3aEskkubMJYBK6IHK9MUHyt8fijDv0XREGhUeLJiDBvE1auIZPC KyVuu4EIKT5LFN1GGlkL4uTvEladBRF6CyM9uXKWgQVdqEDba2P0xVl7H2g21Lelltfz NKqm70/AJ7r/V9kakMmoa03Di5mrvJ1D6+HGs= MIME-Version: 1.0 Received: by 10.86.95.20 with SMTP id s20mr5788233fgb.4.1236760634089; Wed, 11 Mar 2009 01:37:14 -0700 (PDT) In-Reply-To: <9bbcef730903101927l3134ce66vf959354914fe4754@mail.gmail.com> References: <9bbcef730903101927l3134ce66vf959354914fe4754@mail.gmail.com> Date: Wed, 11 Mar 2009 01:37:13 -0700 Message-ID: From: pluknet To: Ivan Voras Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: freebsd-stable@freebsd.org Subject: Re: Performance with hundreds of nullfs mounts? 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: Wed, 11 Mar 2009 08:37:16 -0000 2009/3/10 Ivan Voras : > hi, > I seem to remember hearing an anecdote somewhere that using hundreds > (or thousands?) nullfs mounts for jails results in unreasonably bad > file system access performance. Does somebody have this kind of setup > / is it true? ~600-700 null mount points (without using jails) on 6.2. No visible fs slowdowns. -- wbr, pluknet