Re: Make pipe data structure be a circular list of pages, ratherthan

[Davide Libenzi]

On Sat, 8 Jan 2005, Linus Torvalds wrote:

> Short and sweet: the latency changes are in the noise for SMP, but can be
> seen on UP. I'll look at it a bit more:  since I had to add the coalescing
> code anyway, I might also decide to re-use a buffer page rather than free
> it immediately, since that may help latency for small writes.

Yeah, I noticed you clean the page's magazine down to the bottom. Maybe 
keeping one (or more) page in there might help something, due to cache 
improvements and alloc/free page savings.


- Davide

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