Nigel Cunningham <[EMAIL PROTECTED]> ha scritto: > On Thu, 2007-04-26 at 11:17 +0300, Pekka Enberg wrote: >> On 4/26/07, Nigel Cunningham <[EMAIL PROTECTED]> wrote: >> > * Mulithreaded I/O (might as well use multiple cores to compress the >> > image, now that we're hotplugging later). >> >> I assume this doesn't affect the kernel at all with uswsusp? > > Well uswsusp would benefit from using multiple threads - if it can - to > do the work. I saw quite an improvement from implementing it.
It's doable[1], but I'm not sure that the added complexity is worth of it. I'm suprised that you see a big improvement. I'd expect that the image write is bottlenecked by the disk performance. On my PC (Core2, locked at 1.6GHz) lzf can compress 250-280MB/s; even with an older CPU that can do 1/3 it's still more than the disk can handle. Luca [1] We may even use MPI to compress over a Beowulf cluster, it's userspace ;) -- "Ricorda sempre che sei unico, esattamente come tutti gli altri". - 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/