While experimenting with zcache on various systems, we discovered what seems to be a different impact on CPU and power consumption, varying from system to system and workload. While there has been some research effort about the effect of on-line memory compression on power consumption [1], the trade-off, for example when using SSDs or on mobile platforms (e.g. Android), remains still unclear. Therefore it would be desirable to improve the possibilities to study this effects on the example of zcache. But zcache is missing an important feature: dynamic disabling and enabling. This is a big obstacle for further analysis. Since we have to do some free-to-choose work on a Linux related topic while doing an internship at the University in Erlangen, we'd like to implement this feature. Moreover, if we achieve our goal, the way to an unloadable zcache module isn’t far way. If that is accomplished, one of the blockers to get zcache out of the staging tree is gone. Any advice is appreciated. Florian Schmaus Stefan Hengelein Andor Daam [1] http://ziyang.eecs.umich.edu/~dickrp/publications/yang-crames-tecs.pdf _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/devel
