From: vda <vda@port.imtp.ilyichevsk.odessa.ua>
To: Mike Maravillo <mike.maravillo@q-linux.com>,
Ryan Hayle <hackel@walkingfish.com>
Cc: linux-kernel@vger.kernel.org, mike.maravillo@q-linux.com
Subject: Re: Poor IDE performance with VIA MVP3
Date: Tue, 6 Nov 2001 11:50:12 +0000 [thread overview]
Message-ID: <01110611501200.00798@nemo> (raw)
In-Reply-To: <20011105005033.A10060@isis.visi.com> <20011105114242.A8099@isis.visi.com> <20011106035452.A1221@maravillo.q-linux.com>
In-Reply-To: <20011106035452.A1221@maravillo.q-linux.com>
On Monday 05 November 2001 19:54, Mike Maravillo wrote:
> > That's the thing--it claims to be in UDMA mode, and again I get no
> > errors. Even when I do 'hdparm -d1 -X66 /dev/hda", everything works
> > fine, without errors, only the speed problems persist. Oh, and I have
> > compiled my kernel with VIA IDE support, it makes no difference in the
> > performance.
> >
> > It's sounding more and more like this isn't a driver/chipset problem, but
> > something wrong with the HD itself. Thanks for your insight.
>
> This has been a long-standing problem with my system as well. I
> have an MS-5187 VIA MVP4 board and ST320413A UltraATA/100 drive.
>
> Timing buffer-cache reads: 128 MB in 4.40 seconds = 29.09 MB/sec
> Timing buffered disk reads: 64 MB in 13.06 seconds = 4.90 MB/sec
>
> Model=ST320413A, FwRev=3.39, SerialNo=7ED05MNS
> Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs RotSpdTol>.5% }
> RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=0
> BuffType=unknown, BuffSize=512kB, MaxMultSect=16, MultSect=off
> CurCHS=16383/16/63, CurSects=-66060037, LBA=yes, LBAsects=39102336
> IORDY=on/off, tPIO={min:240,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
> AdvancedPM=no
> Drive Supports : Reserved : ATA-1 ATA-2 ATA-3 ATA-4
>
> I remember trying out the drive on a Soltek 75KAV and got better
> buffered disk results, ~25.0 MB/sec.
In my experience, if kernel has no support for your particular IDE
chip compiled in, you will likely be unable to get [u]dma working.
However, I have one hd which refuses to do dma even with proper support
compiled in (I have PIIX IDE). All I can do is
# hdparm -c1 -A1 -W1 /dev/hda
and get 8mb/s in
# hdparm -T -t /dev/hda
--
vda
next prev parent reply other threads:[~2001-11-06 9:52 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-11-05 6:50 Poor IDE performance with VIA MVP3 Ryan Hayle
2001-11-05 16:12 ` vda
2001-11-05 17:42 ` Ryan Hayle
2001-11-05 17:55 ` Daniel R. Warner
2001-11-05 19:54 ` Mike Maravillo
2001-11-06 11:50 ` vda [this message]
[not found] ` <Pine.LNX.4.10.10111051506270.13543-100000@coffee.psychology.mcmaster.ca>
2001-11-06 5:21 ` Ryan Hayle
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