thanks, i was guessing something like that, these are very short pieces of linear code.
so i did try; using returned values, repeating the test 10x in the loop, and adding stop/start. the code's on github, (https://github.com/splace/signals) but this is a selective test, so its really buried, if i cant get it to work after reading up, i'll snip it out and post. On Sunday, 19 June 2016 00:32:32 UTC+1, Dave Cheney wrote: > > Without seeing the code (hint, hint) I'm guessing that your benchmark got > optimised away. > > Here are some links with suggestions on how to make your benchmark > reliable. > > > http://dave.cheney.net/2013/06/30/how-to-write-benchmarks-in-go#compiler-optimisation > > http://talks.godoc.org/github.com/davecheney/presentations/writing-high-performance-go.slide#19 > > > > On Sunday, 19 June 2016 09:17:31 UTC+10, simon place wrote: >> >> any ideas? i've run out. >> >> this only happens with one program, and only in go1.7beta1(and 2). >> >> (i notice PASS is now at the end rather than the start. FWIW) >> >> see below >> /* Hal3 Sat Jun 18 21:52:37 BST 2016 go version go1.7beta1 linux/amd64 >> >> BenchmarkPCM8bitEncode-2 2000000000 0.39 ns/op >> BenchmarkPCM8bitDecode-2 2000000000 0.39 ns/op >> BenchmarkPCM16bitEncode-2 2000000000 0.39 ns/op >> BenchmarkPCM16bitDecode-2 2000000000 0.39 ns/op >> BenchmarkPCM24bitEncode-2 2000000000 0.39 ns/op >> BenchmarkPCM24bitDecode-2 2000000000 0.39 ns/op >> BenchmarkPCM32bitEncode-2 2000000000 0.39 ns/op >> BenchmarkPCM32bitDecode-2 2000000000 0.39 ns/op >> PASS >> ok _/home/simon/Dropbox/github/working/signals 6.570s >> Sat Jun 18 21:52:49 BST 2016 */ >> >> /* Hal3 Sat Jun 18 22:07:30 BST 2016 go version go1.5.1 linux/amd64 >> PASS >> BenchmarkPCM8bitEncode-2 300000000 4.25 ns/op >> BenchmarkPCM8bitDecode-2 300000000 5.58 ns/op >> BenchmarkPCM16bitEncode-2 300000000 5.57 ns/op >> BenchmarkPCM16bitDecode-2 200000000 8.33 ns/op >> BenchmarkPCM24bitEncode-2 200000000 8.10 ns/op >> BenchmarkPCM24bitDecode-2 100000000 12.3 ns/op >> BenchmarkPCM32bitEncode-2 100000000 10.7 ns/op >> BenchmarkPCM32bitDecode-2 100000000 16.2 ns/op >> ok _/home/simon/Dropbox/github/working/signals 15.140s >> Sat Jun 18 22:07:47 BST 2016 */ >> /* Hal3 Sat Jun 18 23:35:10 BST 2016 go version go1.6.2 linux/amd64 >> >> PASS >> BenchmarkPCM8bitEncode-2 300000000 4.25 ns/op >> BenchmarkPCM8bitDecode-2 300000000 5.59 ns/op >> BenchmarkPCM16bitEncode-2 300000000 5.56 ns/op >> BenchmarkPCM16bitDecode-2 200000000 8.37 ns/op >> BenchmarkPCM24bitEncode-2 200000000 8.12 ns/op >> BenchmarkPCM24bitDecode-2 100000000 12.4 ns/op >> BenchmarkPCM32bitEncode-2 100000000 10.7 ns/op >> BenchmarkPCM32bitDecode-2 100000000 16.2 ns/op >> ok _/home/simon/Dropbox/github/working/signals 15.145s >> Sat Jun 18 23:35:27 BST 2016 */ >> >> -- 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.
