Compressed caching improves LTSP memory efficiency

hi, all

Compressed Caching for Linux (http://code.google.com/p/compcache/) is
a project that creates RAM based block device (named ramzswap) which
acts as swap disk. Pages swapped to this disk are compressed and
stored in memory itself. Compressing pages and keeping them in RAM
virtually increases its capacity. This allows more applications to fit
in given amount of memory. This is especially useful for LTSP
environment where  swapping is either unavailable or expensive(through
nbd or NFS).

We have done some testing in LTSP of debian with limited memory and
analyzed the memory behavior of two popular program -- kpdf & firefox.
The result shows compcache greatly improves the memory efficiency.
And what is most important is that you can install and use compcache
very easily and feel the significant improvement with you own eyes.

Please take a look at the URLs for detailed information:

Project homepage: http://code.google.com/p/compcache/
Kpdf & firefox testing result:
http://code.google.com/p/compcache/wiki/LTSPPerf


Best Regards,
Nai Xia

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