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Re: memcpy is not optimal implemented


From: Ulrich Drepper
Subject: Re: memcpy is not optimal implemented
Date: 15 Mar 2001 17:36:09 -0800
User-agent: Gnus/5.0807 (Gnus v5.8.7) XEmacs/21.2 (Thelxepeia)

"Wallner, Jens" <address@hidden> writes:

> the currend memcpy function for i686 is not optimal implemented.

That's not correct.  The underlying assumptions are different.  If the
number of bytes is not a multiple of the word size we make no
assumptions on the alignment of the pointer.  This might or might not
be correct.  You can collect some statistical data (very easy using
LD_PRELOAD and RTLD_NEXT) and convince me.

-- 
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Ulrich Drepper  \    ,-------------------'   \  Sunnyvale, CA 94089 USA
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