Question #254386 on sysbench changed: https://answers.launchpad.net/sysbench/+question/254386
Alexey Kopytov proposed the following answer: My understanding from that description is that KSM does not optimize memory bandwidth (on the contrary, it can make memory access less efficient), but it does optimize memory footprint by sharing pages between VMs/processes. That is, whenever a process writes to a page, a real write occurs, regardless of its contents. However, a page merge can be performed _after_ the write by some background scan in the kernel. -- You received this question notification because you are a member of sysbench-developers, which is an answer contact for sysbench. _______________________________________________ Mailing list: https://launchpad.net/~sysbench-developers Post to : [email protected] Unsubscribe : https://launchpad.net/~sysbench-developers More help : https://help.launchpad.net/ListHelp
