4 ms·

Does anyone have any benchmarks on how fast this will run? For comparison C++ based implementations range from 13.5 seconds to 0.65 seconds when iterating over

by feniv 14y ago

Does anyone have any benchmarks on how fast this will run? For comparison C++ based implementations range from 13.5 seconds to 0.65 seconds when iterating over 1,000,000,000 elements on an Intel Core i7 860, quad-core, hyperthreading, 2.8Ghz cpu. (http://create.stephan-brumme.com/eratosthenes/ http://create.stephan-brumme.com/eratosthenes/)

Scaevolus 14y ago
Pretty slow. This is intended to demonstrate how Go concurrency works, so there's a lot of communication overhead. Someone ported djb's primegen (uses the Sieve of Atkin) to Go, and got comparable performance-- .7s for primes up to a trillion. https://groups.google.com/forum/m/?fromgroups#!topic/golang-nuts/zRvkdfpeOY8 https://groups.google.com/forum/m/?fromgroups#!topic/golang-...
- StavrosK 14y ago
  Does anyone know which ballpark Go is in, performance-wise? In my mind, it's a bit faster than Python, whereas I would expect it to be closer to C. However, I have no clue how I formed this opinion, so actual benchmarks would help. I wonder how it compares to pypy.
  - icebraining 14y ago
    Well, there's lies, damn lies and benchmarks, but the Shootout has Go: http://shootout.alioth.debian.org/u64q/compare.php?lang=go http://shootout.alioth.debian.org/u64q/compare.php?lang=go (only the standard compiler, though. No gccgo)
    - StavrosK 14y ago
      That's very useful, thank you. I wish it had PyPy, though...
      - igouy 14y ago
        "If you're interested in something not shown then please take the program source code and the measurement scripts and publish your own measurements." http://shootout.alioth.debian.org/more.php#languagex http://shootout.alioth.debian.org/more.php#languagex
    - igouy 14y ago
      "After all, facts are facts, and although we may quote one to another with a chuckle the words of the Wise Statesman, 'Lies--damned lies--and statistics,' still there are some easy figures the simplest must understand, and the astutest cannot wriggle out of." Leonard Henry Courtney, 1895

by feniv 14y ago

Scaevolus 14y ago

Pretty slow. This is intended to demonstrate how Go concurrency works, so there's a lot of communication overhead. Someone ported djb's primegen (uses the Sieve of Atkin) to Go, and got comparable performance-- .7s for primes up to a trillion. https://groups.google.com/forum/m/?fromgroups#!topic/golang-nuts/zRvkdfpeOY8 https://groups.google.com/forum/m/?fromgroups#!topic/golang-...

StavrosK 14y ago
Does anyone know which ballpark Go is in, performance-wise? In my mind, it's a bit faster than Python, whereas I would expect it to be closer to C. However, I have no clue how I formed this opinion, so actual benchmarks would help. I wonder how it compares to pypy.
- icebraining 14y ago
  Well, there's lies, damn lies and benchmarks, but the Shootout has Go: http://shootout.alioth.debian.org/u64q/compare.php?lang=go http://shootout.alioth.debian.org/u64q/compare.php?lang=go (only the standard compiler, though. No gccgo)
  - StavrosK 14y ago
    That's very useful, thank you. I wish it had PyPy, though...
    - igouy 14y ago
      "If you're interested in something not shown then please take the program source code and the measurement scripts and publish your own measurements." http://shootout.alioth.debian.org/more.php#languagex http://shootout.alioth.debian.org/more.php#languagex
  - igouy 14y ago
    "After all, facts are facts, and although we may quote one to another with a chuckle the words of the Wise Statesman, 'Lies--damned lies--and statistics,' still there are some easy figures the simplest must understand, and the astutest cannot wriggle out of." Leonard Henry Courtney, 1895