On 16 January 2012 00:46, Andreas Färber <afaer...@suse.de> wrote: > For a loop count of 100,000 and 5 runs I got the following results: > > current: 138.9-204.1 Whetstone-MIPS > [u]int*_t: 185.2-188.7 Whetstone-MIPS > [u]int_fast*_t: 285.7-294.1 Whetstone-MIPS > > Toshiba AC100: 833.3-909.1 Whetstone-MIPS > > These results seem to indicate that the "fast" POSIX types are indeed > somewhat faster, both compared to exact-size POSIX types and to the > current state.
OTOH I did a run of scimark2 and got: current tree: ** ** ** SciMark2 Numeric Benchmark, see http://math.nist.gov/scimark ** ** for details. (Results can be submitted to p...@nist.gov) ** ** ** Using 2.00 seconds min time per kenel. Composite Score: 12.98 FFT Mflops: 7.66 (N=1024) SOR Mflops: 19.49 (100 x 100) MonteCarlo: Mflops: 6.12 Sparse matmult Mflops: 15.34 (N=1000, nz=5000) LU Mflops: 16.28 (M=100, N=100) with patches (yours and mine): ** ** ** SciMark2 Numeric Benchmark, see http://math.nist.gov/scimark ** ** for details. (Results can be submitted to p...@nist.gov) ** ** ** Using 2.00 seconds min time per kenel. Composite Score: 11.87 FFT Mflops: 7.12 (N=1024) SOR Mflops: 17.66 (100 x 100) MonteCarlo: Mflops: 5.75 Sparse matmult Mflops: 14.03 (N=1000, nz=5000) LU Mflops: 14.81 (M=100, N=100) Hmmm... -- PMM
