Days ago, I gave a talk on an academic seminar at ACT of Beihang University (http://act.buaa.edu.cn/). In my talk, I introduced three typical system workloads we (a group of system software developers inside Taobao) observed from the most heavily used/deployed product lines. The introduction was quite brief, no detail touched here. we don’t mind to share what we did imperfectly, and we would like to open mind to cooperate with open source community and industries to improve 
If you find there is anything unclear or misleading, please let me know. Communication makes things better most of time
Wow, lots of information.
“Current page cache allocation priorities are devices and state based
In page cache reclaim, writing back is handled per block device inter-
face, not per inode interface.”
See my simple attempt here: http://lkml.indiana.edu/hypermail/linux/kernel/1008.2/00004.html
I think it is not exactly what you want, but something along those lines.
Comment by Nikanth Karthikesan — November 23, 2010 @ 12:32 am