Golang, Performance, Programming.
contention, and pprof quantifies it to 613ms. $ time ./mandelbrot > workers-buf.trace ./mandelbrot > workers-buf.trace 8.06s user 0.29s system 542% cpu 1.539 total $ go tool trace workers-buf.trace 2017/10/23 12:04:51 Parsing trace... 2017/10/23 12:04:51 Serializing trace... 2017/10/23 12:04:51