> From: jemalloc-discuss-boun...@canonware.com > [mailto:jemalloc-discuss-boun...@canonware.com] On Behalf Of Daniel Micay
> 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. Thanks Daniel, that's what I was expecting. Just checking if anyone has encountered any nasty surprises (like a hit on performance) with the workaround to get jemalloc & THP to play together. Paul _______________________________________________ jemalloc-discuss mailing list jemalloc-discuss@canonware.com http://www.canonware.com/mailman/listinfo/jemalloc-discuss
