Personally, I prefer it like now and find it clear enough.

I'd like, now, that someone starts exploring other parameters value to see if we can put together some better set of parameters, or optimize them for various tasks.

I'm currently exploring the effect of vfs_cache_pressure - you'll find references to it both on talk.maemo.org and on the big Internet, in several places where there are discussions on linux desktop tuning.

Vfs_cache_pressure: "Controls the tendency of the kernel to reclaim the memory which is used for caching of directory and inode objects.

At the default value of vfs_cache_pressure = 100 the kernel will attempt to reclaim dentries and inodes at a "fair" rate with respect to pagecache and swapcache reclaim. Decreasing vfs_cache_pressure causes the kernel to prefer to retain dentry and inode caches. Increasing vfs_cache_pressure beyond 100 causes the kernel to prefer to reclaim dentries and inodes."

Other readings:
http://duopetalflower.blogspot.com/2...speed-and.html
http://rudd-o.com/en/linux-and-free-...ow-to-fix-that