On 2/20/2011 5:52 PM, Joel Falcou wrote: > 1/ how do you measure performances ? Anything which is not the median of > 1-5K runs is meaningless.
You can see how he measures it in the code he posted. > 2/ Don't use context, transform are usually better optimized by compilers That really shouldn't matter. > 3/ are you using gcc on a 64 bits system ? On this configuration a gcc > bug prevent proto to be inlined. Naive question: are you actually compiling with optimizations on? -O3 -DNDEBUG? And are you sure the compiler isn't lifting the whole thing out of the loop, since the computation is the same with each iteration? -- Eric Niebler BoostPro Computing http://www.boostpro.com
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