Re: [boost] [xpressive] Performance Tuning?

Subject: Re: [boost] [xpressive] Performance Tuning?
From: OvermindDL1 (overminddl1_at_[hidden])
Date: 2009-07-28 10:25:43

On Tue, Jul 28, 2009 at 7:35 AM, Edward Grace<ej.grace_at_[hidden]> wrote:
> Perhaps you could try a more canonical test - running
> "ejg_uint_parser_0_0_4.cpp"
>
> http://tinyurl.com/lro5ok
>
> That does not make use of boost::bind - but tries to avoid the optimizer
> getting rid of void(void) functions by using globals.

I have no clue why I am still awake, brain is already shut down, code
is a blurry blob to me right now, but I still compiled and ran your
latest file.  :)

The results:

initializing input strings...
Calibrating overhead......done
Timer overhead (t_c) ~= : 12
Jitter               ~= : 8.43769e-015
qi_parse vs atoi    : 1381.05 1385.57 1389.6% faster.
qi_parse vs strtol  : 1365.82 1389.6 1597.94% faster.
strtol vs atoi      : 1.03202 1.04052 10.6428% faster.
qi_parse vs qi_parse : 0 0 0% faster.

Checking that the results are correct...
atoi is behaving itself!
strtol is behaving itself!
qi is behaving itself!

All done!