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| author | Jari Vetoniemi <jari.vetoniemi@indooratlas.com> | 2020-03-16 18:49:26 +0900 |
|---|---|---|
| committer | Jari Vetoniemi <jari.vetoniemi@indooratlas.com> | 2020-03-30 00:39:06 +0900 |
| commit | fcbf63e62c627deae76c1b8cb8c0876c536ed811 (patch) | |
| tree | 64cb17de3f41a2b6fef2368028fbd00349946994 /jni/ruby/benchmark/bm_so_sieve.rb | |
Fresh start
Diffstat (limited to 'jni/ruby/benchmark/bm_so_sieve.rb')
| -rw-r--r-- | jni/ruby/benchmark/bm_so_sieve.rb | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/jni/ruby/benchmark/bm_so_sieve.rb b/jni/ruby/benchmark/bm_so_sieve.rb new file mode 100644 index 0000000..43dc302 --- /dev/null +++ b/jni/ruby/benchmark/bm_so_sieve.rb @@ -0,0 +1,24 @@ +# from http://www.bagley.org/~doug/shootout/bench/sieve/sieve.ruby +num = 500 +count = i = j = 0 +flags0 = Array.new(8192,1) +k = 0 +while k < num + k += 1 + count = 0 + flags = flags0.dup + i = 2 + while i<8192 + i += 1 + if flags[i] + # remove all multiples of prime: i + j = i*i + while j < 8192 + j += i + flags[j] = nil + end + count += 1 + end + end +end +count |