Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Fri, 30 Aug 2002 02:41:47 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Fri, 30 Aug 2002 02:41:47 -0400 Received: from astound-64-85-224-253.ca.astound.net ([64.85.224.253]:58895 "EHLO master.linux-ide.org") by vger.kernel.org with ESMTP id ; Fri, 30 Aug 2002 02:41:46 -0400 Date: Thu, 29 Aug 2002 23:41:29 -0700 (PDT) From: Andre Hedrick To: Sergio Bruder cc: Anssi Saari , vojtech@ucw.cz, linux-kernel@vger.kernel.org Subject: Re: PROBLEM: CD burning at 12x uses excessive CPU, although DMA is enabled In-Reply-To: <20020830043346.GA5793@bruder.net> Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3281 Lines: 74 Sergio, Okay the newest code attempt to tune the system before subdrivers are loaded. This ensures that DMA is valid. See latency comments below. Andre Hedrick LAD Storage Consulting Group On Fri, 30 Aug 2002, Sergio Bruder wrote: > lspci -vvv > 00:00.0 Host bridge: VIA Technologies, Inc. VT8363/8365 [KT133/KM133] (rev 03) > Subsystem: Elitegroup Computer Systems: Unknown device 0987 > Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- > Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- SERR- Latency: 8 ^^^^^^^^^^^^^^^^^^ This tends to really roto-til things. This needs to be "0" in may tests systems observed. > Region 0: Memory at d8000000 (32-bit, prefetchable) [size=64M] > Capabilities: [a0] AGP version 2.0 > Status: RQ=31 SBA+ 64bit- FW- Rate=x1,x2,x4 > Command: RQ=0 SBA- AGP+ 64bit- FW- Rate=x4 > Capabilities: [c0] Power Management version 2 > Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-) > Status: D0 PME-Enable- DSel=0 DScale=0 PME- > > 00:01.0 PCI bridge: VIA Technologies, Inc. VT8363/8365 [KT133/KM133 AGP] (prog-if 00 [Normal decode]) > Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- > Status: Cap+ 66Mhz+ UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- SERR- Latency: 0 ^^^^^^^^^^^^^^^^^^ Bet you have nice video performance > Bus: primary=00, secondary=01, subordinate=01, sec-latency=0 > I/O behind bridge: 0000f000-00000fff > Memory behind bridge: dc000000-ddffffff > Prefetchable memory behind bridge: d0000000-d7ffffff > BridgeCtl: Parity- SERR- NoISA+ VGA+ MAbort- >Reset- FastB2B- > Capabilities: [80] Power Management version 2 > Flags: PMEClk- DSI- D1+ D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-) > Status: D0 PME-Enable- DSel=0 DScale=0 PME- > > 00:07.0 ISA bridge: VIA Technologies, Inc. VT82C686 [Apollo Super South] (rev 40) > Subsystem: VIA Technologies, Inc. VT82C686/A PCI to ISA Bridge > Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping+ SERR- FastB2B- > Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- SERR- Latency: 0 > Capabilities: [c0] Power Management version 2 > Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-) > Status: D0 PME-Enable- DSel=0 DScale=0 PME- > > 00:07.1 IDE interface: VIA Technologies, Inc. Bus Master IDE (rev 06) (prog-if 8a [Master SecP PriP]) > Subsystem: VIA Technologies, Inc. Bus Master IDE > Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- > Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- SERR- Latency: 32 > Region 4: I/O ports at d000 [size=16] > Capabilities: [c0] Power Management version 2 > Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-) > Status: D0 PME-Enable- DSel=0 DScale=0 PME- - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/