Messages in this thread | | | Date | Tue, 27 Jul 2010 16:51:55 +0900 | From | KAMEZAWA Hiroyuki <> | Subject | [RFC][PATCH 0/7][memcg] towards I/O aware memory cgroup |
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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. 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.)
Any comments are welcome.
Thanks, -Kame
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