Home » Code » x86 Compiler Flags, The irrelevance of Microsoft, and Insider Trading

x86 Compiler Flags, The irrelevance of Microsoft, and Insider Trading

Andrzej Nowak, 2nd Annual Concurrency Forum Meeting, Feb. 5 2013, A brief correlation study of x86 compiler flags and performance events, here. Omits flags that “tune for this architecture” sort of a disappointment.

Inlining: at O2 in ICC, at O3 in GCC
•IPO: at O2 in ICC
•Vectorization: at O2 in ICC
•Strict aliasing: At O2 in GCC, in ICC you have to ask for it explicitly
•Loop unrolling: O2 in ICC, but only some loop optimizations available in GCC with “frerun-loop-opt”
•ICC uses optimized math library functions by default

Benedict Evans, The irrelevance of Microsoft, here.

Justin Fox, Harvard Business Review, Sac and the Strange Focus on Insider Trading, here.

But the emphasis does seem to be off. The ban on insider trading dates to an era when the stock market was the biggest financial show in town, and small investors still controlled a big percentage of it. Now institutions dominate stock trading, and publicly traded stocks are a relatively small part of a burgeoning financial universe of private equity, debt, commodities, derivatives, and more. Yet most government investigative and prosecutorial energy seems to remain focused on insider trading in stocks — because that’s where cases can be won.

 

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