[ARROW-16014] [C++] Create more benchmarks for measuring expression evaluation overhead

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 8.0.0
• Component/s: C++
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/31437
• Assignee: Sanjiban Sengupta
• Reporter: Weston Pace
• Created: 23/Mar/22 21:50
• Updated: 11/Jan/23 11:41
• Resolved: 20/Apr/22 13:35

Description

We have a lot of great benchmarks on individual kernels but I don't know if we have enough benchmarks on the function & expression evaluation itself.

There are some benchmarks (function_benchmark.cc) which measure this but I would like to get a better sense of a "bytes per second" number from the function system for a trivial function (e.g. an identity function that simply returns the values as is).

In addition, we should measure overhead for common tasks like preallocation, etc.

I would also like these benchmarks to be parameterized by batch size. Being able to run on small batches enables (in theory) better cache utilization. I suspect that the overhead here may start to become a bottleneck.

Issue Links

• links to: GitHub Pull Request #12755