[lopkeny12ko]

I assume you are the lead developer or someone in an exeuctive position associated with Dragonfly. Your defensive, holier-than-thou attitude and tone here and elsewhere is another reason we decided not to adopt Dragonfly internally.

Yes, your results are either inaccurate or deceptive at best. I challenge you run to memcached, under all default settings, and Dragonfly, under all default settings, and memtier_benchmark, under all default settings. Performance is reproducibly orders of magnitude slower, and Dragonfly is also much less efficient--consuming more than double the CPU usage for the same workload.

We also created a test Dragonfly cluster mirroring a small percentage of production traffic in order to do a side-by-side comparison with Memcache. Dragonfly consumed 47% higher CPU usage and regressed P99 latency by 22%. Perhaps our workload is unique, but claiming Dragonfly outperforms Memcache the way you do in your marketing material is an outright lie.

[romange]

I apologize. I must say that my tone, as you rightly wrote, was inappropriate. Indeed, I am the lead developer for Dragonfly. As such, I am deeply concerned with the performance aspects of our product. Dragonfly claims to be a drop-in, better performant replacement for Redis and Memcached. Every test & benchmark we've run on multiple cpus reinforced that. I've never faked or tweaked any of these benchmarks. That is, of course, not an excuse, and is why I opened by apologizing. I'd like to take this opportunity, if I can kindly ask so, to learn what made your results differ so much from ours. I'll personally try to reproduce what you described. If you could also reach out to me, I'd be happy to learn more about the environments in which you've conducted the aforementioned tests.