Timings of pifast version 4.3 (see http://numbers.computation.free.fr/Constants/PiProgram/pifast.html) Timings by R. J. Matheson (Oct. 2004)  Machine:           Dell Corp. XPSGen 3  Operating system:  XP Professional  Processor:         Pentium 4 ; 3.4 Gigahertz  Ram:               1 Gigabyte; 533 Megahertz 100 m 16 m 1 m Catalan_Broadhurst 29045.09 3232.94 112.34 Catalan_Huvent 26287.11 2884.94 100.53 Catalan_Lupas 18446.95 2002.83 66.44 Catalan_Sebah1 28351.05 3191.25 114.70 Pi_Atan1 2402.69 269.38 10.47 Pi_Atan_Gauss 2272.08 265.58 9.39 Pi_BBP 7370.47 820.77 29.81 Pi_Machin 2137.88 239.55 8.86 Pi_Rational 2398.03 269.34 10.14 Pi_Sebah1 2078.11 238.24 8.73 Pi_Stormer 2268.14 256.92 9.52 Pi_Lyster 2441.03 282.44 10.70 Pi Chudnovsky 594.56 66.77 2.27 Pi Ramanujan 853.28 93.39 3.25 E SUM 1/n! 188.00 18.38 0.75 E 1/SUM (-1)^n/n! 188.42 18.28 0.81 Golden_Easy 2890.23 320.99 11.63 Golden_Sebah1 761.45 85.88 3.12 Golden_Sebah2 510.38 57.19 2.14 Golden_Sebah3 414.30 47.13 1.77 Golden_Sebah4 365.63 42.59 1.59 Golden_Sebah5 342.03 40.05 1.52 Lemniscate_Sebah1 6767.08 748.28 25.98 Lemniscate Gauss 5377.97 590.61 20.61 ln2_cube_huvent 14830.94 1609.97 54.53 Log2_Basic 2154.56 238.14 8.58 Log2_Easy 6503.70 727.66 25.41 Log2_Sebah1 2035.61 224.58 8.25 Log2_Sebah2 2223.11 244.36 8.98 Log2_Sebah3 1674.36 197.05 7.25 Log2_Sebah4 1866.58 206.44 7.69 Log2_Sebah5 1945.44 230.77 8.17 Log2_Sebah6 2147.76 239.97 8.81 Log10_Easy 3333.56 366.45 13.39 Log10_Sebah1 2156.59 240.06 8.81 Log10_Sebah2 1906.22 210.86 7.56 Sqrt2 menu 37.39 4.05 0.20 Sqrt2_Easy 1276.67 158.45 5.13 Sqrt2_Sebah1 578.22 67.44 2.38 Sqrt2_Sebah2 495.44 53.39 2.08 Sqrt2_Sebah3 419.49 50.17 1.81 Sqrt2_Sebah4 382.44 43.25 1.66 Sqrt2_Sebah5 357.58 40.91 1.59 Zeta3_Apery 8937.22 970.39 32.78 Zeta3_Zeilberger 4006.92 423.58 14.05 Zeta3_Zeilberger2 4350.28 469.11 15.20 zeta5_broadhurst 92645.88 9996.25 334.61 zeta5_huvent 83144.56 9012.76 309.86