Go micro-benchmarks for calculating the speed of language constructs

README
Issues 1

== About ==

Gospeed is a library of micro-benchmarks for Go which evolved from the GoLightly project. It's main
utility is for understanding and reasoning about the performance of Go programs.


== Usage ==

Download the repo to a convenient location in your $GOPATH and then run the benchmarks with:

	go test -v -test.bench=".*" -test.timeout="60m"

the sixty minute timeout may be necessary when running the entire benchmark suite or portions which
make significant use of channels as the default aggregate test timeout is ten minutes.

0 Open More issues

Closed

OOM

I encountered a out of memory error when running the full benchmark. Obviously not your fault, but just wanted to give you a heads up.

It seems the memory overhead for creating a mere 500 000 go routines required more than my 4GB. I added another 1GB of swap just to test and it still crashed with an OOM.

The issue is reproducible on my machine by running the benchmarks with

$ go test -v -test.bench=".*"

which would throw out the following when hitting the BaselineGo benchmark.

throw: out of memory (FixAlloc)

goroutine 1 [chan receive]:
testing.(*B).run(0xf8400730a0, 0x9732500000003, 0x7ff66dc53e10, 0x100000001)
    /home/simon/lib/golang/src/pkg/testing/benchmark.go:133 +0x49
testing.RunBenchmarks(0x400c00, 0x571850, 0x6700000067, 0x0)
    /home/simon/lib/golang/src/pkg/testing/benchmark.go:244 +0x4c1
testing.Main(0x400c00, 0x56c528, 0x100000001, 0x571850, 0x6700000067, ...)
    /home/simon/lib/golang/src/pkg/testing/testing.go:293 +0x180
main.main()
    /tmp/go-build113068524/github.com/feyeleanor/gospeed/_test/_testmain.go:249 +0x91

goroutine 2 [syscall]:
created by runtime.main
    /home/simon/lib/golang/src/pkg/runtime/proc.c:221

goroutine 54 [running]:
github.com/feyeleanor/gospeed.BenchmarkBaselineGo(0xf8400730a0, 0x41f661)
    /home/simon/src/github.com/feyeleanor/gospeed/baseline_benchmark_test.go:282 +0x37
testing.(*B).runN(0xf8400730a0, 0xf4240, 0x2710000f4240, 0xbabf2000babf2)
    /home/simon/lib/golang/src/pkg/testing/benchmark.go:84 +0x4e
testing.(*B).launch(0xf8400730a0, 0x0)
    /home/simon/lib/golang/src/pkg/testing/benchmark.go:169 +0x147
created by testing.(*B).run
    /home/simon/lib/golang/src/pkg/testing/benchmark.go:132 +0x2c

Simply running