From owner-freebsd-questions@FreeBSD.ORG Fri Nov 21 12:16:56 2008 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 2F18C1065677 for ; Fri, 21 Nov 2008 12:16:56 +0000 (UTC) (envelope-from wojtek@wojtek.tensor.gdynia.pl) Received: from wojtek.tensor.gdynia.pl (wojtek.tensor.gdynia.pl [IPv6:2001:4070:101:2::1]) by mx1.freebsd.org (Postfix) with ESMTP id 6C7B48FC16 for ; Fri, 21 Nov 2008 12:16:54 +0000 (UTC) (envelope-from wojtek@wojtek.tensor.gdynia.pl) Received: from wojtek.tensor.gdynia.pl (localhost [IPv6:::1]) by wojtek.tensor.gdynia.pl (8.14.3/8.14.2) with ESMTP id mALCGjln001825; Fri, 21 Nov 2008 13:16:46 +0100 (CET) (envelope-from wojtek@wojtek.tensor.gdynia.pl) Received: from localhost (wojtek@localhost) by wojtek.tensor.gdynia.pl (8.14.3/8.14.2/Submit) with ESMTP id mALBa6DD001451; Fri, 21 Nov 2008 12:36:06 +0100 (CET) (envelope-from wojtek@wojtek.tensor.gdynia.pl) Date: Fri, 21 Nov 2008 12:36:06 +0100 (CET) From: Wojciech Puchar To: Johan Hendriks In-Reply-To: <57200BF94E69E54880C9BB1AF714BBCB5DE2B0@w2003s01.double-l.local> Message-ID: <20081121123558.K1450@wojtek.tensor.gdynia.pl> References: <02c801c94b40$4b6a2f10$e23e8d30$@za.net> <20081120204756.O16829@wojtek.tensor.gdynia.pl> <20081120222909.K17356@wojtek.tensor.gdynia.pl><139b44430811202326j6eafb93fgde2a55c1564da68f@mail.gmail.com> <20081121094146.P19920@wojtek.tensor.gdynia.pl> <57200BF94E69E54880C9BB1AF714BBCB5DE2B0@w2003s01.double-l.local> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed Cc: freebsd-questions@freebsd.org Subject: RE: ZFS Recovery Tools X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 21 Nov 2008 12:16:56 -0000 > > when you say read 2 files in the same time, FreeBSD will readahead at most > MAXPHYS from one file, then from file 2, from file 1 etc. > > 128kB/s is way too much for todays drives, that can read 1MB within one > access time. > > 128kB/s is way to much , and you set it to 1024, or did you mean way to low ? i meant too little. sorry.