From mboxrd@z Thu Jan 1 00:00:00 1970 From: Petr Stehlik Subject: Re: nfhd performance Date: Sun, 18 Aug 2013 07:08:20 +0200 Message-ID: <1376802500.26218.3.camel@pracovni> References: Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-2 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: Received: from mx.zln.cz ([188.246.101.4]:55653 "EHLO mx.zln.cz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751098Ab3HRFI0 convert rfc822-to-8bit (ORCPT ); Sun, 18 Aug 2013 01:08:26 -0400 In-Reply-To: Sender: linux-m68k-owner@vger.kernel.org List-Id: linux-m68k@vger.kernel.org To: Geert Uytterhoeven Cc: Linux/m68k , aranym@lists.bobek.cz Geert Uytterhoeven p=ED=B9e v P=E1 16. 08. 2013 v 23:57 +0200: > 141114880 bytes (141 MB) copied, 17.09 seconds, 8.3 MB/s > So nfhd is slower than emulated IDE? nfhd is something like IDE with DMA (if everything is in buffer cache then it's doing basically just a memcpy() from cache to the destination place) - can't believe it would be that slow. Don't have profiling numbers at hand but one of the main purposes of nfhd was to be way way faster than the emulated IDE. Something must be seriously wrong somewhere. Petr