Re: poor 164SX IDE drive performance, dma enabled
Hmm. Thanks. looking closer it appears that you're right, its only
using 10-15% of my CPU when reading. I had assumed it was pegged based on
some stalling behaviour i had seen doing some copies. Well thats good,
at least its doing DMA. Disappointing performance when I see my x86
boxes getting 10 times that but plenty for what i'm using the drive for.
> the 164SX supports DMA. I have an Eiger, which also uses
> the Contaq Cypress 693 IDE-chip. It maxes out at 3MB/s as
> well, but doesn't eat up that much CPU. Did you compile in
> support for the CY693? Try that. It might help. IIRC, someone
> mentioned, that he got IDE up to 6MB/sec. It isn't that much
> either, but still better than 3MB/s.
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