Quote: speed varies widely across test data, computers, compilers, and optimization level; simple measures such as comparisons may be ineffectual

Quotation Skeleton

This paper has been presented as a case … the appearance of the algorithm may be of … between compilers and optimization levels on a single … another. @ Very simple algorithms are often in … by caches. @ Complex algorithms tend to use … @ Algorithms may have strong data dependencies. … Is the test data appropriate to the intended … convenient measures such as character comparisons, memory references … [memory] references may be at least as important as their mere …   Google-1   Google-2

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Quote: simple algorithms often faster because easily optimized and good cache performance

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