Messages in this thread | | | Date | Wed, 28 Jul 2010 20:12:29 +0530 | From | Balbir Singh <> | Subject | Re: [RFC][PATCH 0/7][memcg] towards I/O aware memory cgroup |
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* KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> [2010-07-27 16:51:55]:
> > From a view of patch management, this set is a mixture of a few features for > memcg, and I should divide them to some groups. But, at first, I'd like to > show the total view. This set is consists from 5 sets. Main purpose is > create a room in page_cgroup for I/O tracking and add light-weight access method > for file-cache related accounting. > > 1. An virtual-indexed array. > 2,3. Use virtual-indexed array for id-to-memory_cgroup detection. > 4. modify page_cgroup to use ID instead of pointer, this gives us enough > spaces for further memory tracking.
Yes, this is good, I've been meaning to merge the flags and the pointer. Thanks for looking into this.
> 5,6 Use light-weight locking mechanism for file related accounting. > 7. use spin_lock instead of bit_spinlock. > > > As a function, patch 5,6 can be an independent patch and I'll accept > reordering series of patch if someone requests. > But we'll need all, I think. > (irq_save for patch 7 will be required later.) >
-- Three Cheers, Balbir
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