Re: Benchmark of try/catch

[davidl]

在 Mon, 23 Mar 2009 16:59:47 +0800，bearophile <bearophileh...@lycos.com>  
写道:

Part of the timings, seconds:
N = 4_000_000:
  C:       0.36
  Java:    5.59
  C++:     9.97
  Psyco:  29.28
  Python: 32.68
  D:      48.76  SLOW=false
  D:      88.45  SLOW=true
You can find it here, with C/D/Java/C++/Python code too:
http://leonardo-m.livejournal.com/78890.html

I'd like to see timing comparisons on Linux between a Java reference and  
LDC.

And I'd also like to know why using printf changes the situation so much.

Bye,
bearophile

Your C, C++ code won't catch exceptions:

try
{
  char*p;
  *p=0;
}
catch
{
}

The mechanism of exception system is different. So the performance differs.

In MSVC, you have __try / try , they are different things. The split of  
exception is quite uncomfortable.
Though, it's quite fair tradeoff. You can't work out a better solution.