On 18/08/15 05:58 PM, Paul Marquess wrote: >>> Do you have any feeling whether it is safe to have jemalloc and THP at the >>> same time? >> >> I've had pretty poor experience with the mixture even within the past month. >> The problem is that at some point (under a day of intermittent benchmarking >> in all the cases I observed) the kernel gets into a fragmented memory state >> that it cannot recover from without a reboot, and the only obvious >> indications are decreased performance and increased page faults. > > Do you think that disabling madvise with opt.lg_dirty_mult:-1 allows jemalloc > & THP to co-exist without causing other unwanted side-effects? > > Paul
Well, you won't lose huge pages if you've disabled purging. It's going to increase memory usage but that may not be a problem for you.
signature.asc
Description: OpenPGP digital signature
_______________________________________________ jemalloc-discuss mailing list [email protected] http://www.canonware.com/mailman/listinfo/jemalloc-discuss
