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[RFC] memory controller : backgorund reclaim and avoid excessive locking [0/5]
Hi, these are patches on my stack, now. I believe test is not enough. Maybe there is BUG. Before updating patches, I'd like to hear guys' advice against my concept before going further. TODO: - test on NUMA (machine is not avilable in these days. but I will do) This series inludes 2 series of patches. One is updated "back-ground reclaiming with high-low watermark". One is for avoid locking. Updated series. [1/5] -- high-low watermark for resource counter. [2/5] -- background reclaim with high-low watermark. [3/5] -- throttle # of direct reclaim This series tries to improve page reclaiming. New ones. [4/5] -- borrow resource for avoiding counter->lock [5/5] -- bulk freeing page_cgroup This series tries to reduce contention on counter->lock and mz->lru_lock. This 2 are the top most contended lock in lock_stat. Any commetns are welcome. Regards, -Kame |
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