benchmarks/gc_latency: add new microbenchmark for tricky mutator latency issues
Gc_latency is a modified version of a program that tickled multiple
latency glitches in the Go GC/runtime. This version reports the time
of the worst observed glitches so that they can be easily located in
a trace file and debugged. This program can also be run as a benchmark
to allow easier automated performance monitoring; by default the benchmark doesn't report worst case times because those are too noisy.
Updates golang/go#27732.
Change-Id: I19b9060f24cda1547b8d75f762316dd5271e32c6
Reviewed-on: https://go-review.googlesource.com/c/benchmarks/+/372256
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Austin Clements <austin@google.com>
Run-TryBot: David Chase <drchase@google.com>
3 files changed
