From: John Max Skaller (skaller_at_[hidden])
Date: 2001-08-22 12:29:06
Peter Dimov wrote:
> 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.
Sure, but how many C compilers let you use it?
Usually, such special hardware is reserved for the kernel
and device drivers.
-- John (Max) Skaller, mailto:skaller_at_[hidden] 10/1 Toxteth Rd Glebe NSW 2037 Australia voice: 61-2-9660-0850 New generation programming language Felix http://felix.sourceforge.net Literate Programming tool Interscript http://Interscript.sourceforge.net
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