On Wed, Jun 15, 2011 at 03:33:19PM +0900, Kazuya Mio wrote: > This patch adds get_fragment_score() to libe2p. get_fragment_score() returns > the fragmentation score. It shows the percentage of extents whose size is > smaller than the input argument "threshold". It perhaps might be useful to also articulate what are the goals of this metric. Is just just to decide which files should be defragmented, and which should be left alone? Or do you want to be able to compare which file is "worse off"? I can imagine two files that have a score of 100%, but one is much worse off than the other. Does that matter? It may or might not, depending how you plan to use the fragmentation score, both now and in the future. So it might be good to explicitly declare what are the goals for this metrics, and its planned use cases. Regards, - Ted -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
