Hi, On Tue, Jan 09, 2001 at 11:23:41AM +0100, Ingo Molnar wrote: > > > Having proper kiobuf support would make it possible to, for example, > > do zerocopy network->disk data transfers and lots of other things. > > i used to think that this is useful, but these days it isnt. It's a waste > of PCI bandwidth resources, and it's much cheaper to keep a cache in RAM > instead of doing direct disk=>network DMA *all the time* some resource is > requested. No. I'm certain you're right when talking about things like web serving, but it just doesn't apply when you look at some other applications, such as streaming out video data or performing fileserving in a high-performance compute cluster where you are serving bulk data. The multimedia and HPC worlds typically operate on datasets which are far too large to cache, so you want to keep them in memory as little as possible when you ship them over the wire. Cheers, Stephen - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] Please read the FAQ at http://www.tux.org/lkml/
- Re: [PLEASE-TESTME] Zerocopy networking pat... Linus Torvalds
- Re: [PLEASE-TESTME] Zerocopy networking pat... Albert D. Cahalan
- Re: [PLEASE-TESTME] Zerocopy networking pat... Linus Torvalds
- Re: [PLEASE-TESTME] Zerocopy networking pat... Benjamin C.R. LaHaise
- Re: [PLEASE-TESTME] Zerocopy networking pat... Linus Torvalds
- Re: [PLEASE-TESTME] Zerocopy networking pat... Gerd Knorr
- Re: [PLEASE-TESTME] Zerocopy networking pat... Stephen C. Tweedie
- Re: [PLEASE-TESTME] Zerocopy networking patch, ... Ingo Molnar
- Re: [PLEASE-TESTME] Zerocopy networking pat... Christoph Hellwig
- Re: [PLEASE-TESTME] Zerocopy networking pat... Ingo Molnar
- Re: [PLEASE-TESTME] Zerocopy networking patch, 2.4.0... Stephen C. Tweedie
- Re: [PLEASE-TESTME] Zerocopy networking patch, ... Ingo Molnar
- Re: [PLEASE-TESTME] Zerocopy networking pat... Alan Cox
- Re: [PLEASE-TESTME] Zerocopy networking pat... Stephen C. Tweedie
- Re: [PLEASE-TESTME] Zerocopy networking pat... Ingo Molnar
- Re: [PLEASE-TESTME] Zerocopy networking pat... David S. Miller
- Re: [PLEASE-TESTME] Zerocopy networking pat... Linus Torvalds
- Re: [PLEASE-TESTME] Zerocopy networking pat... Stephen C. Tweedie
- Re: [PLEASE-TESTME] Zerocopy networking pat... Stephen Frost
- Re: [PLEASE-TESTME] Zerocopy networking pat... Ingo Molnar
- Re: [PLEASE-TESTME] Zerocopy networking pat... Stephen Frost