The x32 system call ABI
The x32 system call ABI
Posted Sep 1, 2011 3:57 UTC (Thu) by njs (subscriber, #40338)Parent article: The x32 system call ABI
Curiously, that first link does have some benchmarks, and in none of them is x32 actually the best choice -- on one of them ia32 wins, and on one of them x86-64 wins. I guess this must reflect some lack of optimization in the toolchain or something, since I can't see how adding more registers could ever legitimately make a CPU-bound 32-bit program *slower*...?
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