Messages in this thread |  | | Date | Mon, 23 Oct 2000 12:27:47 +0200 (CEST) | From | Marco Colombo <> |
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On Fri, 20 Oct 2000, Andre Hedrick wrote:
> > Michael, > > Whatever card you are using, in you are getting that low I need to know > more info. That drive should cook at 30MB/sec.
Andre, he wrote "old triton 2 board (Intel 430HX)". Do you really mean you can do 30MB/sec on that board (no UDMA at all, AFAIK)?
# hdparm -i /dev/hda
/dev/hda:
Model=IBM-DPTA-372050, FwRev=P76OA30A, SerialNo=JMYJMG52550 Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs } RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=34 BuffType=3(DualPortCache), BuffSize=1961kB, MaxMultSect=16, MultSect=16 DblWordIO=no, maxPIO=2(fast), DMA=yes, maxDMA=2(fast) CurCHS=16383/16/63, CurSects=-66060037, LBA=yes LBA CHS=1023/256/63 Remapping, LBA=yes, LBAsects=40088160 tDMA={min:120,rec:120}, DMA modes: mword0 mword1 *mword2 IORDY=on/off, tPIO={min:240,w/IORDY:120}, PIO modes: mode3 mode4 UDMA modes: mode0 mode1 mode2
# hdparm -tT /dev/hda
/dev/hda: Timing buffer-cache reads: 128 MB in 4.95 seconds =25.86 MB/sec Timing buffered disk reads: 64 MB in 8.46 seconds = 7.57 MB/sec
Kernel is a 2.2.16 RedHat-patched but not IDE-patched. I suppose I could get more with your patches (but really? DMA seems to work, it's just a pre UDMA chipset, AFAIK), but I doubt I could go over the 25.10 MB/sec thing. It'a an *old* MB, with a *slow* CPU (133MHz).
# lspci 00:00.0 Host bridge: Intel Corporation 430FX - 82437FX TSC [Triton I] (rev 02) 00:07.0 ISA bridge: Intel Corporation 82371FB PIIX ISA [Triton I] (rev 02) 00:07.1 IDE interface: Intel Corporation 82371FB PIIX IDE [Triton I] (rev 02)
(OK, mine is a 430FX, even older than Michael's one. The chipset is buggy, I think, since doesn't let you go DMA on the second IDE channel. But a 430HX should be close in performance).
The DPTA-372050 does 20MB/sec on an Athlon MB, BTW. A DTLA-307030 does 35.5MB/sec on AMD-751/6-based boards (UDMA/66). But you know that... B-)
.TM. -- ____/ ____/ / / / / Marco Colombo ___/ ___ / / Technical Manager / / / ESI s.r.l. _____/ _____/ _/ Colombo@ESI.it
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