Date: Tue, 14 Nov 1995 08:49:30 +1100 From: Bruce Evans <bde@zeta.org.au> To: peter@jhome.DIALix.COM, wollman@lcs.mit.edu Cc: security@FreeBSD.org Subject: Re: cvs commit: CVSROOT log_accum.pl Message-ID: <199511132149.IAA08615@godzilla.zeta.org.au>
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>> The order of cr_ngroups and cr_uid could be swapped making the whole >> thing 4 bytes smaller (assuming that I understand structure packing.. :-) >Better to make the shorts into longs if you're going to change the >structure. shorts are slow. Longs might be slow too. Use [unsigned] ints. I've seen reports that shorts (and chars?) are even slower (relatively) on the P6. I don't know why that would be - I would have thought that movsx and movzx were near the top of the list of things to optimize after the 486 optimized more important operations. Bruce
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