Author: Matthew Hull
Date: 10:13:19 06/30/04
Go up one level in this thread
On June 30, 2004 at 13:08:48, Gian-Carlo Pascutto wrote: >On June 30, 2004 at 13:06:24, Matthew Hull wrote: > >>On June 30, 2004 at 12:57:26, Vincent Diepeveen wrote: >> >>>Hello, >>> >>>For diep moving from 32 to 64 bits is not so interesting. But the 8==>16 >>>registers is. >>> >>>All tested with same diep version : >>> >>>at windows 64 bits : >>> >>>net2003 32 bits : 135k nps >>>amd SDK 64 bits : 130k nps >>>gcc 3.4 32 bits : 130k nps (with pgo) >>> >>>at linux (gentoo) 64 bits : >>>gcc 3.3.3 64 bits : 140k nps >>> >>>So it's trivial that moving from 8 to 16 registers increased it by 10k nps, >>>despite also losing to larger instruction sizes. >> >> >> >>If you had gone with bitboards, you would have seen a 47% increase. > >Which would have been no help if it had slowed him down 47% in 32 bit mode to >begin with. Do you think bitboards are that much slower on 32 bit machines? > >-- >GCP
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