[erlang-questions] erlang:now() vs os:timestamp()
Manuel A. Rubio "Bombadil"
bombadil@REDACTED
Wed Apr 3 19:07:31 CEST 2013
good point! I don't know about -mode(compile), thanks Magnus.
El 2013-04-03 18:57, Magnus Henoch escribió:
> "Manuel A. Rubio \"Bombadil\"" <bombadil@REDACTED> writes:
>
>> Hi,
>>
>> I saw a keynote[1] from Rick Reed (WhatsApp) and he said: "Prefer
>> os:timestamp to erlang:now"... I did a benchmark to test it[2], and
>> get the following results:
>>
>> os:timestamp = 1.44 1.38 1.38
>> erlang:now = 1.01 1.00 1.00
>>
>> I know that he says "prefer" and not "better"... but the benchmark
>> says that he should be say the opposite :-P
>>
>> What do you think?
>
> I added -mode(compile) to your script:
>
> https://gist.github.com/legoscia/5303050
>
> and now I get completely different results:
>
> os:timestamp = 0.36 0.15 0.17
> erlang:now = 1.00 1.00 1.00
>
>
> Regards,
> Magnus
More information about the erlang-questions
mailing list