On Saturday, June 18, 2016 at 6:15:11 AM UTC+2, gordo...@gmail.com wrote:
>
> Here is a golang version of Daniel Bernstein's "eratspeed", which is a
> straight translation of his C code to golang without any changes other than
> as necessary to make it work: https://play.golang.org/p/Sd6qlMQcHF.
>
$ perf stat --repeat=100 -- ./eratspeed-go1.7tip
Performance counter stats for './eratspeed-go1.7tip' (100 runs):
612.731838 task-clock (msec) # 1.002 CPUs utilized
( +- 0.06% )
129 context-switches # 0.210 K/sec
( +- 0.50% )
7 cpu-migrations # 0.012 K/sec
( +- 3.95% )
185 page-faults # 0.302 K/sec
( +- 0.10% )
2,442,624,802 cycles # 3.986 GHz
( +- 0.06% )
33,146,164 stalled-cycles-frontend # 1.36% frontend
cycles idle ( +- 0.33% )
611,827,173 stalled-cycles-backend # 25.05% backend cycles
idle ( +- 0.21% )
6,851,374,060 instructions # 2.80 insn per cycle
# 0.09 stalled cycles
per insn ( +- 0.00% )
1,277,112,717 branches # 2084.293 M/sec
( +- 0.00% )
2,924,448 branch-misses # 0.23% of all
branches ( +- 0.09% )
0.611729451 seconds time elapsed
( +- 0.06% )
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