Re: Problem allocating DMA memory

Alan Cox (alan@lxorguk.ukuu.org.uk)
Mon, 6 Sep 1999 17:11:26 +0100 (BST)

> This patch allows you to turn it off if you have few RAMs or your arch
> doesn't care. I turn it off on my alpha. It seems to work ok.

I saw the patch. It doesnt address the performance issue

> You can also do something clever to check the ratio of DMA and none DMA
> memories. If it is above certain threshold, don't preserve DMA.

That doesn't work - tried it 8).

Alan

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