On Mon, Nov 12, 2018 at 12:26:10AM +0300, Timofey Titovets wrote: > ksm by default working only on memory that added by > madvice(). > > And only way get that work on other applications: > - Use LD_PRELOAD and libraries > - Patch kernel > > Lets use kernel task list in ksm_scan_thread and add logic to allow ksm > import VMA from tasks. > That behaviour controlled by new attribute: mode > I try mimic hugepages attribute, so mode have two states: > - normal - old default behaviour > - always [new] - allow ksm to get tasks vma and try working on that. > > To reduce CPU load & tasklist locking time, > ksm try import VMAs from one task per loop. > > So add new attribute "mode" > Two passible values: > - normal [default] - ksm use only madvice > - always [new] - ksm will search vma over all processes memory and > add it to the dedup list Do you have any numbers for how much difference this change makes with various different workloads?
