On Thursday 12 November 2009, Mel Gorman wrote: > Changelog since V2 > o Dropped the kswapd-quickly-notice-high-order patch. In more detailed > testing, it made latencies even worse as kswapd slept more on > high-order congestion causing order-0 direct reclaims. > o Added changes to how congestion_wait() works > o Added a number of new patches altering the behaviour of reclaim I have tested this series on top of .32-rc7. First impression is that it does seem to improve my test case, but does not yet completely solve it. My last gitk instance now loads more smoothly for most of the time it takes to complete, but I still see a choke point where things freeze for a while and where I get SKB allocation errors from my wireless. However, that choke point does seem to happen later and to be shorter than without the patches. I'll try to do additional tests (with .31). If you'd like me to run this set with your instrumentation patch for congestion_wait, then please let me know. Chris Mason's analysis regarding dm-crypt workqueues in reply to your other mail looks very interesting. Cheers, FJP -- To unsubscribe from this list: send the line "unsubscribe kernel-testers" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
