On a second glance, there's no real IP here. Let's not complicate things--I just ask that nobody judge the state of this code, unless that state is the reason for the strange benchmark results!
This won't run in playground since it's a benchmark, but provided as a nicer place to paste: https://play.golang.org/p/w9WYsNnkv6 On Thursday, 10 November 2016 17:34:08 UTC-8, Evan Digby wrote: > > I'm actually struggling to come up with a toy example that identically > reproduces the results. I wonder if there are some compiler optimizations > happening here. > > The example isn't a lot of source, but has some IP and code that's not > exactly in a state I wish to post publicly (rough draft). Is there > somewhere I can post privately? If not, I can continue to try to reproduce > with a non-IPish example. > > On Thursday, 10 November 2016 17:08:15 UTC-8, Dave Cheney wrote: >> >> Can you post a runable sample so that other can try to reproduce your >> issue? >> >> On Friday, 11 November 2016 12:06:21 UTC+11, Evan Digby wrote: >>> >>> Is it expected that if multiple sub-benchmarks are run in the same >>> benchmark, the cost of the setup will impact the results from the first >>> benchmark but not the second? >>> >>> func BenchmarkIntersection(b *testing.B) { >>> // Long setup -- ~5.5 seconds >>> >>> b.Run("basic 1", func(b *testing.B) { >>> for i := 0; i < b.N; i++ { >>> // Do benchmark stuff >>> } >>> }) >>> b.Run("basic 2", func(b *testing.B) { >>> for i := 0; i < b.N; i++ { >>> // Do benchmark stuff (EXACTLY THE SAME AS TEST 1) >>> } >>> }) >>> } >>> >>> Results in: >>> >>> BenchmarkIntersection/basic_1-4 1 5521938867 ns/op >>> BenchmarkIntersection/basic_2-4 200000000 8.89 ns/op >>> >>> Am I doing this wrong? >>> >>> I don't see an issue raised against this--should I be raising one? >>> >>> >>> -- You received this message because you are subscribed to the Google Groups "golang-nuts" group. To unsubscribe from this group and stop receiving emails from it, send an email to golang-nuts+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
