Messages in this thread | | | Date | Wed, 19 Dec 2001 17:05:29 +0100 | From | Thomas Deselaers <> | Subject | Re: IDE Harddrive Performance |
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On Wed, Dec 19, 2001 at 06:55:38PM +0300, Oleg Artamonov wrote: > Thomas Deselaers ???????: > > /dev/hdc: > > Timing buffered disk reads: 64 MB in 5.63 seconds = 11.37 MB/sec > > > > What would be a value I can expect from my hardware? > > I have a Maxtor D541X (20Gbytes, 5400rpm), and its results are about > 37MB/sec... Motherboard is Epox 8KTA3 with VIA 686B southbridge (HDD runs in > UDMA5 mode). > > > And what might result in higher speeds? > > Did you enable UltraDMA2 (P2B-S supports only UDMA2, not UDMA4 nor UDMA5)? > 32-bit transfer? What 'hdparm /dev/hda' and 'hdpram -i /dev/hda' says?
Here are the results, and maybe I should have told, that I am using 2.4.16 without any further patches applied.
It seems that I have udma2 enabled.
leukertje:/home/thomasd# hdparm /dev/hdc
/dev/hdc: multcount = 16 (on) I/O support = 0 (default 16-bit) unmaskirq = 0 (off) using_dma = 1 (on) keepsettings = 0 (off) nowerr = 0 (off) readonly = 0 (off) readahead = 8 (on) geometry = 7297/255/63, sectors = 117231408, start = 0 busstate = 1 (on) leukertje:/home/thomasd# hdparm -i /dev/hdc
/dev/hdc:
Model=MAXTOR 4K060H3, FwRev=A08.1500, SerialNo=373120024159 Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs } RawCHS=16383/16/63, TrkSize=32256, SectSize=21298, ECCbytes=4 BuffType=DualPortCache, BuffSize=2000kB, MaxMultSect=16, MultSect=16 CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=117231408 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 AdvancedPM=no WriteCache=enabled Drive Supports : ATA/ATAPI-5 T13 1321D revision 1 : ATA-1 ATA-2 ATA-3 ATA-4 ATA-5
thomas
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