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Benchmark: timing 1 iterations of uv_fits_double3, uv_fits_double_bitf
+iddle...
uv_fits_double3: 1 wallclock secs ( 0.45 usr + 0.00 sys = 0.45 CPU)
+ @ 2.21/s (n=1)
(warning: too few iterations for a reliable count)
uv_fits_double_bitfiddle: 0 wallclock secs ( 0.25 usr + 0.00 sys =
+0.25 CPU)@ 4.02/s (n=1)
(warning: too few iterations for a reliable count)