Re: [Boost-users] [Regex] Major performance difference between Boost.Regex and Linux regex library

Subject: Re: [Boost-users] [Regex] Major performance difference between Boost.Regex and Linux regex library
From: Roland Bock (rbock_at_[hidden])
Date: 2010-04-04 14:58:16

Kieran O'Donohoe wrote:
> Hi,
> I am just starting to use Boost.Regex, porting from the Linux system 
> regex library to Boost.Regex, and after doing initial testing on my 
> first change I see a major performance impact, where Boost.Regex is 
> about 30 times slower than the system regex library.
>  
> The Boost.Regex documentation seems to imply that its performance has 
> a positive comparsion with existing libraries so I expect that I am 
> doing something wrong but can't see it.
[lots of details]

Hi,

it would be much easier to understand what you are doing if you could 
send your test program (compiling code, boiled down to the bare minimum).

Regards,

Roland