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 <mnelson@xxxxxxxxxx> 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
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Best Regards,
Wheat
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