Re: [boost] Re: Technical session at the October C++ meeting?

From: Peter Dimov (pdimov_at_[hidden])
Date: 2001-08-22 05:57:03

From: "John Max Skaller" <skaller_at_[hidden]>
> > memset() is incredibly fast nowadays. :-)
>
> Sure, but as long as the limit is bus/memory cycle times,
> its still an order of magnitude slower than the CPU.

A very complicated issue since caches and other brilliant inventions enter
the picture. Burst-filling a block of memory is likely to be the most
optimized operation in the memory subsystem; for instance, some RAM designs
have a 'memset' that works in parallel with the CPU.

Let's just say that I've never seen a memset() in a profiler report. Perhaps
it's just me.

--
Peter Dimov
Multi Media Ltd.