jayleeg

3 ms·

1. 1.▲
   by jayleeg 7y ago

   The ScyllaDB one is a bit funny anyway as it doesn't really target analytical workloads. On SSE/GPUs - the ClickHouse guys don't use GPUs today (GPUs are on the roadmap for next year) as their workloads target volumes greater
2. 2.▲
   by jayleeg 7y ago

   To add to pritambaral comments. The top commercial high performance timeseries databases, which ClickHouse can usually best, used by banks to make decisions on your money also don't use fsync. You can literally quit the software and wa
3. 3.▲
   by jayleeg 7y ago

   But they didn't set the temperature reading to anything that would advantage their tests. Without access to the original data they simply generated a dataset as close to the original dataset and volume as possible. The fact they took a
4. 4.▲
   by jayleeg 7y ago

   I've worked with MPP DBs, Hadoop, Spark, ElasticSearch, Druid, kdb, DolphinDB and now ClickHouse and performance wise it's all true - in our case ClickHouse was 10-20x faster than Spark and used 4x less memory. I've seen it o