[IMPALA-4217] Consider using Google Benchmark library for microbenchmarks

• Type: Improvement
• Status: Open
• Priority: Minor
• Resolution: Unresolved
• Affects Version/s: Impala 2.8.0
• Component/s: Infrastructure
• Target Version: Product Backlog
• Assignee: Unassigned
• Reporter: Henry Robinson
• Created: 28/Sep/16 20:35
• Updated: 28/Sep/16 21:11

Description

We should consider using Google's Benchmark library (https://github.com/google/benchmark) to drive our microbenchmarks rather than util/benchmark.*.

Amongst other things, the library will run the benchmarks enough times to get a significant measurement, has hints to force the compiler not to optimize away otherwise dead code that we want to measure, and will warn if it detects frequency scaling.