On Wed, 2007-06-20 at 10:17 -0700, Linus Torvalds wrote: > > On Wed, 20 Jun 2007, Peter Zijlstra wrote: > > > > Building on the per BDI patches, how about integrating feedback from the > > full-ness of device queues. That is, when we are happily doing IO and we > > cannot possibly saturate the active devices (as measured by their queue > > never reaching 75%?) then we can safely increase the total dirty limit. > > The really annoying things are the one-off things. You've been happily > working for a while (never even being _close_ to saturatign any IO > queues), and then you untar a large tree. > > If the kernel now let's you dirty lots of memory, you'll have a very > unpleasant experience.
maybe that needs to be fixed? If you stopped dirtying after the initial bump.. is there a reason for the kernel to dump all that data to the disk in such a way that it disturbs interactive users? so the question maybe is.. is the vm tunable the cause or the symptom of the bad experience? - 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/
