by shigemk2

当面は技術的なことしか書かない

2018-01-16から1日間の記事一覧

presto 0.192 memo

presto 0.192 Fix performance regression in split scheduling introduced in 0.191. If a query scans a non-trivial number of splits (~1M splits in an hour), the coordinator CPU utilization can be very high, leading to elevated communication f…

utilization

utilization 利用