COOL Interesting that async messenger will consume more memory than simple, in my mind I always think async should use less memory. I will give a look at this
On Tue, Oct 13, 2015 at 12:50 AM, Mark Nelson <mnel...@redhat.com> wrote: > Hi Guy, > > Given all of the recent data on how different memory allocator > configurations improve SimpleMessenger performance (and the effect of > memory allocators and transparent hugepages on RSS memory usage), I thought > I'd run some tests looking how AsyncMessenger does in comparison. We spoke > about these a bit at the last performance meeting but here's the full write > up. The rough conclusion as of right now appears to be: > > 1) AsyncMessenger performance is not dependent on the memory allocator > like with SimpleMessenger. > > 2) AsyncMessenger is faster than SimpleMessenger with TCMalloc + 32MB (ie > default) thread cache. > > 3) AsyncMessenger is consistently faster than SimpleMessenger for 128K > random reads. > > 4) AsyncMessenger is sometimes slower than SimpleMessenger when memory > allocator optimizations are used. > > 5) AsyncMessenger currently uses far more RSS memory than SimpleMessenger. > > Here's a link to the paper: > > https://drive.google.com/file/d/0B2gTBZrkrnpZS1Q4VktjZkhrNHc/view > > Mark > _______________________________________________ > ceph-users mailing list > ceph-users@lists.ceph.com > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > -- Best Regards, Wheat
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