On Mon, 2009-01-26 at 10:58 +0100, Stephan Kulow wrote:
I guess sreadahead is helping with certain SSDs only, there it's necessary to get the kernel to create throughput as quickly as possible and seeks don't hurt. That's different to my laptop hdd. According to the sources, sreadahead doesn't need the kernel patch, it only optimzes the order. But still, calling sreadahead early doesn't improve my boot time. And it's much harder to deploy too, more suited to show cases ;)
We have a patched kernel in devel:playground:fastboot now, in case you feel like testing it. I'd guess using an unsorted block list can really hurt HDD performance. I find sreadahead interesting, since it loads individual blocks, not entire files. I can test it on SSD quickly if you have a package I can drop into 11.1. I'm also interested in testing preload on SSD. -- Hans Petter -- To unsubscribe, e-mail: opensuse-factory+unsubscribe@opensuse.org For additional commands, e-mail: opensuse-factory+help@opensuse.org