[Issue 18388] std.experimental.logger slow performance

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=18388

--- Comment #10 from Arun Chandrasekaran <aruncxy at gmail.com> ---
s/_logger.tracef/printf/


06-09-2018 18:25:51 vaalaham ~/code/d/std-log-benchmark
$ time ./std-log-benchmark 8 1000000 > /dev/null

real    0m0.495s
user    0m1.254s
sys     0m2.100s
06-09-2018 19:02:22 vaalaham ~/code/d/std-log-benchmark
$

So the slowdown is definitely related to phobos.

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