RE: Poor PPP performance in 2.2.x

David Mansfield (david@cobite.com)
Tue, 2 Feb 1999 14:58:03 -0500 (EST)

>on the disk. This did not fix the problem. I tried the other settings
>with hdparm, too, turning everything off and leaving the readahead at
>just 2. This did not help at all. I recompiled the kernel to not
>automatically turn on DMA as well. The next step would be to disable DMA
>entirely in the kernel, I suppose, but it doesn't look like this DMA
>thing is the answer, at least for me.

By 'turning off everything' you really mean you turned ON the IRQ
unmasking, right? It's kinda a double-negative, but this is what you mf
want:

hdparm -u 1 /dev/hda

****DISCLAIMER**** in the man page for hdparm you will note that unmasking
the IRQ has been known to cause filesystem corruption in some certain
(buggy?) configurations. Therefore, while the above works for me and for
others, I didn't tell you to do it.

-- 
/==============================\
| David Mansfield              |
| david@cobite.com             |
\==============================/




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