On Fri, Feb 02, 2007 at 03:17:57PM -0800, Linus Torvalds wrote: > threads. But you need to look at what it is we parallelize here, and ask > yourself why we're doing what we're doing, and why people aren't *already* > just using a separate thread for it.
Partially this is for the bad reason that creating "i/o threads" (or even processes) has a bad stigma to it, and additionally has always felt crummy. On the first reason, the 'pain' of creating threads is actually rather minor, so this feeling may have been wrong. The main thing is that you don't wantonly create a thousand i/o threads, whereas you conceivably might want to have a thousand outstanding i/o requests. At least I know I want to have that ability. Secondly, the actual mechanics of i/o processes isn't trivial, and feels wasteful with lots of additional copying, or in the case of threads, queueing and posting. Bert -- http://www.PowerDNS.com Open source, database driven DNS Software http://netherlabs.nl Open and Closed source services - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/