[boost] Re: performance using accumulate, bind, and make_transform_iterator

From: David Abrahams (dave_at_[hidden])
Date: 2004-11-12 21:08:33

Richard Newman <richard_at_[hidden]> writes:

> Thank you, Dave, for replying.  I will check out the link.  
>
> Do you have specific advice/experience for Linux's g++ that might
> improve or explain what we're seeing here?

I'm sure others can do better than this, but:

  1. Optimization quality has varied widely over recent compiler
     versions

  2. The compiler has *many* optimization options so it's easy to
     overlook some (e.g. inlining limits)

  3. g++ has never been known as a compiler with extremely low
     abstraction penalty.

HTH,

-- 
Dave Abrahams
Boost Consulting
http://www.boost-consulting.com