Messages in this thread | | | From | "Boris Seifert" <> | Date | Thu, 18 Dec 1997 09:26:07 +0100 | Subject | Re: UDMA |
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On Dec 17, 21:57, mlord wrote:
> The 32-bit IO and multcount work only for PIO, not DMA. > On some drives (?), multcount might even slow down DMA, > though there is no evidence to support this theory. > Neither of these buys anything when DMA is used.
How come it (seems to) work here ?
[root@clito /root]# hdparm /dev/hda
/dev/hda: multcount = 0 (off) I/O support = 1 (32-bit) <---here unmaskirq = 0 (off) using_dma = 1 (on) <---and here keepsettings = 0 (off) nowerr = 0 (off) readonly = 0 (off) readahead = 8 (on) geometry = 621/128/63, sectors = 5009760, start = 0
or did i misunderstand something ?
Boris
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