Hi Lu, At present, Flink is still based on row format in the runtime execution layer and vectorization relies mostly on automatic compiler optimizations of the JVM.
Best regards, Weijie Shammon FY <zjur...@gmail.com> 于2023年4月27日周四 10:52写道： > Hi Lu, > > Currently, Flink does not have official benchmark results compared to > Spark and Presto. You can run the TPC-DS benchmark yourself to compare to > different engines, Flink supports all queries for TPC-DS, for example, the > benchmark project [1]. Of course, other companies have made similar > comparisons, such as this document [2], and the results are for reference > only. > > [1] https://github.com/ververica/flink-sql-benchmark > [2] > https://files.alicdn.com/tpsservice/c399186c83bb17dc5dd72cbd0c6ccf71.pdf?spm=a2csy.flink.0.0.49496ea8lXSLb8&file=c399186c83bb17dc5dd72cbd0c6ccf71.pdf > > Best, > Shammon FY > > On Thu, Apr 27, 2023 at 1:33 AM Lu Niu <qqib...@gmail.com> wrote: > >> Hi, Flink users >> >> I am trying to understand the internals of flink batch mode. some >> questions: >> >> 1. Does flink batch mode use columnar in-memory format? >> 2. Does flink batch mode use vectorization technique? >> 3. any performance benchmark available compared with batch engines like >> spark or presto? >> >> Some code pointers would be great! Thanks! >> >> Best >> Lu >> >> >>
