2012/1/11 KOSAKI Motohiro <kosaki.motohiro@xxxxxxxxx>: >> Also, I doubt current swap_cluster default is best value on nowadays. > > I meant, current average hdd spec is, > - average seek time: 8.5ms > - sequential access performance: about 60MB/sec > > so, we can eat free lunch up to 7MB ~= 60(MB/sec) * 1000 / 8.5(ms). Bah! I'm moron. the correct fomura is, 500KB = 60(MB/sec) / 1000(msec/ssec) *8.5 (ms) -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: <a href