Messages in this thread | | | Date | Sat, 8 Jan 2005 14:29:49 -0800 (PST) | From | Davide Libenzi <> | Subject | Re: Make pipe data structure be a circular list of pages, rather than |
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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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