On Fri, Feb 15, 2008 at 10:11:26AM -0700, Zan Lynx wrote: > Yes, I see this often myself. It's like the disk IO queue (I set mine > to 1024) fills up, and pdflush and friends can stuff write requests into > it much more quickly than any other programs can provide read requests. > > CFQ and ionice work very well up until iostat shows average IO queuing > above 1024 (where I set the queue number).
I though that CFQ would maintain IO queues per process and pick up request in round robin from non-empty queues. Am I wrong? And if wrong, isn't it desired behavior for desktop? -- Lukáš Hejtmánek -- 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/
