"Mark Cave-Ayland" <[EMAIL PROTECTED]> writes: > Opt 32 32a 32b 2x32 64 64a 64b > -------------------------------------------------------- > O1 4.91 4.86 5.43 6.00 11.4 11.39 11.39 > O2 4.96 4.94 4.69 5.18 15.86 18.75 24.73 > O3 4.82 4.83 4.64 5.18 15.14 13.77 14.73
Not sure I believe these numbers. Shouldn't 2x32 be about twice as slow as just one 32-bit CRC? regards, tom lane ---------------------------(end of broadcast)--------------------------- TIP 5: Have you checked our extensive FAQ? http://www.postgresql.org/docs/faq