DOS ain't dead

IDE performance | bugs in IDECHECK, UIDE, XDMA, XDMA32 (Users)

posted by DOS386, 10.09.2008, 02:41
(edited by DOS386 on 10.09.2008, 03:11)

Some IDE-related observations:

- UIDE drivers don't work at all for me. Either freezer immediately after correct recognizing the drive names, or "working" but no speedup at all. Seems to like (surprisingly ?) more XMGR than HIMEMX. Anyone uses them with success ?

- XDMA works for me any arguments against using it ? Incredible age of 2+1/2 years

- XDMA32 works also (but "expensive").

- IDECHECK has some bugs.

"idecheck 0 /DMA /U:5"

CFG  49=2F00: DMA=1, LBA=1
CFG  51= 200: PIO mode 0-2 timing: 2
CFG  63=   7: Multiword DMA modes supported: 0 1 2
CFG  64=   3: Advanced PIO modes supported: 3 4
CFG  53=   7: UDMA valid=1
setting UDMA mode ... ok
CFG  88= 43F: UDMA modes supported: 0 1 2 3 4 5, current 2
CFG  85=3469: Write cache: enabled
CFG  47=  10: max. multiple sector value is 16
CFG  59=  10: current multiple sector value: 16 (valid setting)
start: 8:35:55,40

   Sector
---------
     2560

end: 8:36:00,89
time: 0:00:05,49 for 2560 sectors -> 233 kB/sec

Why does it offer modes 0 to 5 and pick only 2 then ? "supported" modes >2 are VERY slow (see above) ... but the antique HD indeed might support UDMA 2 at best ...

"IDECHECK 0" or "IDECHECK 0 /I13" (some PC's do work, some not) :

PCI v2.0c BIOS found
PCI 0039 ( 0): vendor ID=8086, device ID=7111
PCI 0039 ( 4): command register=5, status register=280
PCI 0039 ( 8): revision ID=1, class code=10180
PCI 0039 (32): Busmaster DMA controller port base=F000
flushing cache ... ok
reading partition table ... ok
start: 8:35:15,58

   Sector
---------
        0 00 00[DAM not found track 0 not found command aborted uncorrectable EC
C error ] 00 error

end: 8:35:15,58
time: 0:00:00,00 for 0 sectors -> 0 kB/sec

I13 doesn't work on some PC's, while PIO and DMA always do. Report is not very well formatted (minor bug), but what's worse, I13 doesn't work at all, no idea why

- XDMA32 is faster than IDECHECK. Is it possible ? PIO of IDECHECK cca 9 MiB/s, DMA of IDECHECK cca 15 MiB/s, I13 of IDECHECK via XDMA32 18 MiB/s !!! Bug or "feature" ?

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Complete thread:

• IDE performance | bugs in IDECHECK, UIDE, XDMA, XDMA32 - DOS386, 10.09.2008, 02:41 (Users)
  • IDE performance | bugs in IDECHECK, UIDE, XDMA, XDMA32 - Japheth, 10.09.2008, 07:50
    • IDE performance | bugs in IDECHECK, UIDE, XDMA, XDMA32 - DOS386, 23.09.2008, 15:58
      • IDE performance | bugs in IDECHECK, UIDE, XDMA, XDMA32 - DOS386, 25.09.2008, 16:00
        • IDE performance | new bugs discovered in IDECHECK - DOS386, 04.10.2008, 04:57
          • IDE performance | new bugs discovered in IDECHECK - Japheth, 04.10.2008, 09:01
            • IDE performance | new bugs discovered in IDECHECK - DOS386, 05.10.2008, 13:58
  • IDE performance | bugs in IDECHECK, UIDE, XDMA, XDMA32 - rr, 10.09.2008, 11:57
  • IDE performance | bugs in IDECHECK, UIDE, XDMA, XDMA32 - RayeR, 10.09.2008, 15:34
    • IDE performance | bugs in IDECHECK, UIDE, XDMA, XDMA32 - Rugxulo, 10.09.2008, 16:03
  • IDE performance | bugs in IDECHECK, UIDE, XDMA, XDMA32 - Khusraw, 10.09.2008, 16:12