25-Nov-2014 02:43, bearophile пишет:
Dmitry Olshansky:
Which is 1:1 parity. Another myth busted? ;)
> dmitry@Ubu64 ~ $ time ./my2 log
>
> real 0m0.065s
> user 0m0.042s
> sys 0m0.023s
> dmitry@Ubu64 ~ $ time ./my2 log
>
> real 0m0.063s
> user 0m0.040s
> sys 0m0.023s
>
Read the above more carefully.
OMG. I really need to watch my fingers, and double-check:)
dmitry@Ubu64 ~ $ time ./my log
real 0m0.156s
user 0m0.130s
sys 0m0.026s
dmitry@Ubu64 ~ $ time ./my2 log
real 0m0.063s
user 0m0.040s
sys 0m0.023s
Which is quite bad. Optimizations do help but not much.
There is still an open bug report:
https://issues.dlang.org/show_bug.cgi?id=11810
Do you want also to benchmark that byLineFast that for me is usually
significantly faster than the byLine?
And it seems like byLineFast is indeed fast.
dmitry@Ubu64 ~ $ time ./my3 log
real 0m0.056s
user 0m0.031s
sys 0m0.025s
dmitry@Ubu64 ~ $ time ./my2 log
real 0m0.065s
user 0m0.041s
sys 0m0.024s
Now once I was destroyed the question is who is going to make a PR of this?
--
Dmitry Olshansky
