Yep, on some processors with some workloads it really makes a huge difference. As others have commented, there may be significant trade-offs with regard to numerical behaviro.
Some of my observations: dump1090 loses accuracy below the 7th digit when calculating precision, but consumes 10% less power on the device under test rtl_433 runs about 35% faster and acarsdec runs over 400% faster. On Sun, Sep 1, 2019, 07:11 Albin Stigö <albin.st...@gmail.com> wrote: > Anyone has experience with the real world impact of using gcc -ffast-math > with SDR in general, and GNURadio/Volk in particular? > > > --Albin SM6WJM > _______________________________________________ > Discuss-gnuradio mailing list > Discuss-gnuradio@gnu.org > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio >
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