On 01/31/2013 07:39 PM, Simon Jeons wrote: > Hi Seth, > On Tue, 2013-01-29 at 15:40 -0600, Seth Jennings wrote: <snip> >> Performance, Kernel Building: >> >> Setup >> ======== >> Gentoo w/ kernel v3.7-rc7 >> Quad-core i5-2500 @ 3.3GHz >> 512MB DDR3 1600MHz (limited with mem=512m on boot) >> Filesystem and swap on 80GB HDD (about 58MB/s with hdparm -t) >> majflt are major page faults reported by the time command >> pswpin/out is the delta of pswpin/out from /proc/vmstat before and after >> then make -jN >> >> Summary >> ======== >> * Zswap reduces I/O and improves performance at all swap pressure levels. >> >> * Under heavy swaping at 24 threads, zswap reduced I/O by 76%, saving >> over 1.5GB of I/O, and cut runtime in half. > > How to get your benchmark? It's just kernel building. So "make" :) I intentionally choose this workload so people wouldn't have to jump through hoops to replicate the results. Seth -- 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/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>