4 ms·
Hi @jeremyjh - you are absolutely correct about p99 being more important than avg latency for critical services. We have done the following p99 measurements: -
by rkarthik007 9y ago
Hi @jeremyjh - you are absolutely correct about p99 being more important than avg latency for critical services.
We have done the following p99 measurements:
- a p99 comparison of YugaByte vs Cassandra using YCSB
- ran ndbench for a week and looked at the p99 of YB
The results are looking really good for YugaByte in both cases. We are going to post that very soon to our forum, will x-post here as well.
- rpang 9y agoOur ndbench results for YugaByte DB were just posted on our forum https://forum.yugabyte.com/t/ndbench-results-for-yugabyte-db https://forum.yugabyte.com/t/ndbench-results-for-yugabyte-db. In gist, we ran ndbench for 7 days and our p99 was under 6 ms with no "long tail". It is achieved by cautious architectural design and implementation choices. More details are available in our post.
- rpang 9y agoFor those who are interested, our ndbench results post has just been moved to a new location: https://forum.yugabyte.com/t/yugabyte-db-p99-latencies-with-netflix-data-store-benchmark https://forum.yugabyte.com/t/yugabyte-db-p99-latencies-with-...
- rpang 9y agoSome new updates on YCSB and p99 latencies. https://forum.yugabyte.com/t/ycsb-benchmark-results-for-yugabyte-and-apache-cassandra-again-with-p99-latencies/99 https://forum.yugabyte.com/t/ycsb-benchmark-results-for-yuga.... In our new benchmark run, we set up Apache Cassandra using G1 GC and a smaller heap size as suggested. Still, we observed a multitude of differences in throughput and p99 latencies in YugaByte over Apache Cassandra.