Re: [Boost-users] [Regex] anyone seeing performance dip w/regex matching moving from 1.47->1.48 w/gcc?

Subject: Re: [Boost-users] [Regex] anyone seeing performance dip w/regex matching moving from 1.47->1.48 w/gcc?
From: Kopet, Gary (gkopet_at_[hidden])
Date: 2011-12-20 17:57:30

Thanks for the reply. I'm going to roll back to boost 1.47 until I can more fully investigate my build environment.

Cheers,
Gary

-----Original Message-----
From: boost-users-bounces_at_[hidden] [mailto:boost-users-bounces_at_[hidden]] On Behalf Of John Maddock
Sent: Monday, December 19, 2011 10:24 AM
To: boost-users_at_[hidden]
Subject: Re: [Boost-users] [Regex] anyone seeing performance dip w/regex matching moving from 1.47->1.48 w/gcc?

>I just pulled down boost regex 1.48 and built it with gcc 4.3 on CentOS 
>5.5. My internal regex performance tests are showing > 30% performance 
>degradation between versions 1.47 and 1.48. I wanted to ask if anyone 
>else has seen anything like this?
>
>We've been using the same makefile to built boost regex for a long 
>time, and we haven't converted to bjam. So I am wondering if this could 
>be due to our particular build environment?

I doubt it, but more to the point, I don't think there were any significant changes between those version,

John.

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