Hello , I would like to know if there is any existing mechanism in the kernel to get the page-cache statistics like hit-ratios etc. So far i have found 2 ways of doing this: First is to instrument the find_get_page routine using ftrace trace-events, as done here : [http://lkml.org/lkml/2011/7/21/25] . The other is to use something like system tap : http://serverfault.com/questions/157612/is-there-a-way-to-get-cache-hit-miss-ratios-for-block-devices-in-linux However i seem to getting different results from these two approaches. I'd like to know if there is any framework for evaluating linux-mm performance (which has cache statistics) ? Thanks! -- 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=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>