>>*/
>>+ ch->max_segment_size = (1<<16) - 512;
>>
>>
>>I would in esp. like to see the result of setting ch->max_segment_size
>>= (1 << 15).
>
>
> This might not be such a good idea, since the limit-bio-size etc stuff
> isn't in yet, depending on _exactly_ how big the bio's xfs are building
> are. If they are max 8 pages (I seem to recall so), then yeah the above
> test would be nice to see. If they are bigger than 8 pages, then the
> above would be a meaningless test.
Sure. I'm aware of this. And I haven't looked at the XFS code
yet, so I can only guess about it.
What I can do myself is just pushing this limit even lower just to
see at which point my own system (ext3) starts to turn tits up ...
> I'll hack up a rq_dump() function to slap in pcidma.c as well.
Yes that would be a "nice to have too".
But it is a request for actual data as far as I can see.
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