On Thu, Dec 23, 2010 at 2:48 PM, Mike Cao <[email protected]> wrote: > Scenario 1: > 1.Initialize TWO zram devices with 100MB each. ... > Scenario 2: > 1.Initialize ONE zram devices with 200MB ... > Both of scenarios,I can find 200MB swap new added.then What's the > difference between the two scenarios ,especially for performance > influence?
Probably not much. I imagine the main difference is that in Scenario 1 you can adjust the amount of compcache more easily as you have the option of disabling one of the two 100MB swap devices. Presumably Scenario 1 uses up a little more memory. It may also reduce lock contention slightly on machines with lots of cores, but I am not familiar enough with the code to know if that is the case. -- John C. McCabe-Dansted _______________________________________________ linux-mm-cc mailing list [email protected] http://lists.laptop.org/listinfo/linux-mm-cc
