Re: OT: Re: Sieve of Erastosthenes optimized to the max

Am 20.08.2024 um 17:24 schrieb Bonita Montero:

     C:\Users\Boni\Documents\Source\bitmapSieve>timep "x64\Release- clang++\bitmapSieve.exe" 0x100000000 "" 1
     real   1.795s
     user   1.766s
     sys    0.000s
     cylces 8.011.804.500
 Thats less than half the computation time.

And printing the primees to a file is rather slow with your code
as you use C++ stream I/O.
C:\Users\Boni\Documents\Source\test>timep x64\Release-clang-cl\test.exe 4294967296 primes.txt
tinyCount 7 smallCount 10 bigCache 0x80000
real   41.756s
user   36.734s
sys    4.734s
cylces 186.843.020.132
This is my code:
C:\Users\Boni\Documents\Source\bitmapSieve>timep "x64\Release-clang++\bitmapSieve.exe" 4294967296 primes.txt
real   6.460s
user   5.828s
sys    4.344s
cylces 46.660.685.085