Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Thu, 19 Apr 2001 12:57:23 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Thu, 19 Apr 2001 12:57:13 -0400 Received: from twin.uoregon.edu ([128.223.214.27]:27804 "EHLO twin.uoregon.edu") by vger.kernel.org with ESMTP id ; Thu, 19 Apr 2001 12:57:01 -0400 Date: Thu, 19 Apr 2001 09:56:54 -0700 (PDT) From: Joel Jaeggli X-X-Sender: To: Nicholas Petreley cc: Linux Kernel Subject: Re: More ATA100 oddity In-Reply-To: <20010419093609.A7170@petreley.com> 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 udma 5 is ata100 udma4 is 66 so it's seeing your disk fine... as far as the 27MB/s goes, it actually testing the disk and that's what it got for throughput... that's acutally a pretty good number, on the diamondmax 80 I get 23MB/s /dev/hde: Model=Maxtor 98196H8, FwRev=ZAH814Y0, SerialNo=V80H9YCC Config={ Fixed } RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=57 BuffType=DualPortCache, BuffSize=2048kB, MaxMultSect=16, MultSect=off CurCHS=16383/16/63, CurSects=-66060037, LBA=yes, LBAsects=160086528 IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120} PIO modes: pio0 pio1 pio2 pio3 pio4 DMA modes: mdma0 mdma1 mdma2 udma0 udma1 *udma2 udma3 udma4 udma5 /dev/hde: Timing buffered disk reads: 64 MB in 2.77 seconds = 23.10 MB/sec using promise ultra-100 On Thu, 19 Apr 2001, Nicholas Petreley wrote: > I just noticed something odd. (I'm using 2.4.3-ac9 on an > ASUS A7V, Athlon 1000 mHz) > > > (1) As noted in other messages, my machine boots up the Promise > chipset as UDMA(100) > > > hde: 80041248 sectors (40981 MB) w/2048KiB Cache, CHS=79406/16/63, UDMA(100) > > > (2) hdparm recognizes it as UDMA5 with 27 MB/sec speed > > > /dev/hde: > > Model=Maxtor 54098H8, FwRev=DAC10SC0, SerialNo=K80EP5NC Config={ Fixed } > RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=57 > BuffType=DualPortCache, BuffSize=2048kB, MaxMultSect=16,MultSect=off > CurCHS=16383/16/63, CurSects=16514064, LBA=yes,LBAsects=80041248 > IORDY=on/off, tPIO={min:120,w/IORDY:120},tDMA={min:120,rec:120} > PIO modes: pio0 pio1 pio2 pio3 pio4 > DMA modes: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 udma4 *udma5 > Timing buffered disk reads: 64 MB in 2.31 seconds = 27.71 MB/sec > > > > (3) /proc/ide/pdc202xx sees it as UDMA 4 > > > > PDC20265 Chipset. > ------------------------------- General Status --------------------------------- > Burst Mode : enabled > Host Mode : Normal > Bus Clocking : 33 PCI Internal > IO pad select : 10 mA > Status Polling Period : 1 > Interrupt Check Status Polling Delay : 2 > --------------- Primary Channel ---------------- Secondary Channel ------------- > enabled enabled > 66 Clocking enabled disabled > Mode PCI Mode PCI > FIFO Empty FIFO Empty > --------------- drive0 --------- drive1 -------- drive0---------- drive1 ------ > DMA enabled: yes no no no > DMA Mode: UDMA 4 NOTSET NOTSET NOTSET > PIO Mode: PIO 4 NOTSET NOTSET NOTSET > > > > Oh, and by the way, ACPI support has never powered off this > machine. Ever. But I use apm and I'm happy. > > > -Nick > > -- -------------------------------------------------------------------------- Joel Jaeggli joelja@darkwing.uoregon.edu Academic User Services consult@gladstone.uoregon.edu PGP Key Fingerprint: 1DE9 8FCA 51FB 4195 B42A 9C32 A30D 121E -------------------------------------------------------------------------- It is clear that the arm of criticism cannot replace the criticism of arms. Karl Marx -- Introduction to the critique of Hegel's Philosophy of the right, 1843. - 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/