HI, If some guy is interested in this topic, i would like to talk about VFS hot tracking. The feature will add the support for tracking data temperature information in VFS layer. Essentially, this means maintaining some key hot data statistics (like number of reads/writes, last read/write time, frequency of reads/writes), then distilling those numbers down to a single "temperature" value that reflects what data is "hot", then specific FS such as btrfs will take use of the temperature infomation to move hot data to SSDs, or do the defragmetation. In this talk, i would discuss its current implementation and how its key points are resolved such as memory consumption, how its hot data is updated periodically, etc. If you have any suggestions, pleas let me know, thanks. -- Regards, Zhi Yong Wu -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
