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Is Java faster then JavaScript? Yes. Is it easier to write performant code with node.js vs Java Async IO? Subjective.

by Raynos 15y ago

grannyg00se 15y ago
Java is faster than Javascript on V8? This is accepted fact? Can you provide a reference?
- agnokapathetic 15y ago
  Java AIO $ ab -n 30000 -c 300 http://127.0.0.1:8080/ Concurrency Level: 300 Time taken for tests: 4.908 seconds Complete requests: 30000 Requests per second: 6112.65 [#/sec] (mean) Node (January 2011) $ ab -n 30000 -c 300 http://127.0.0.1:8124/ Concurrency Level: 300 Time taken for tests: 8.140 seconds Complete requests: 30000 Requests per second: 3685.69 [#/sec] (mean) http://www.olympum.com/java/java-aio-vs-nodejs/ http://www.olympum.com/java/java-aio-vs-nodejs/
- Raynos 15y ago
  It's pretty well known that Java hovers around 1.1x the speed of C where as JS hovers around 2-3x the speed of C. So yes Java is faster.
  - mappu 15y ago
    { 'offtopic' : " I totally agree with you, but i just want to draw your attention to the phrase 'the speed of C'. You almost make it seem like it's a global constant, like the real C-for-celeritas speed of light, some unobtainable blazingly fast mirage accessible only to quantum physicists and unix greybeards.. but we don't need a particle accelerator to beat the performance of C, just better JITters. There's not really anything in the language stopping the performance from being reached (okay, well for JS there's the type system.) " }
    - Raynos 15y ago
      When I say the speed of C. I'm really comparing various language X compilers to the GCC compiler under the assumption that the GCC compiler is the best. No it's not a magical constant but I think for a baseline comparison "how close your compiler X is to GCC" is a fair thing to compare. I also doubt V8 or spidermonkey can get better then GCC _on average_
  - grannyg00se 15y ago
    Thanks for the replies. I wasn't aware that JS was that much slower than Java, and I also wasn't aware that Java had closed the gap so significantly vs C.

Is Java faster then JavaScript? Yes. Is it easier to write performant code with node.js vs Java Async IO? Subjective.

by Raynos 15y ago

Is Java faster then JavaScript? Yes. Is it easier to write performant code with node.js vs Java Async IO? Subjective.

grannyg00se 15y ago

Java is faster than Javascript on V8? This is accepted fact? Can you provide a reference?

agnokapathetic 15y ago
Java AIO $ ab -n 30000 -c 300 http://127.0.0.1:8080/ Concurrency Level: 300 Time taken for tests: 4.908 seconds Complete requests: 30000 Requests per second: 6112.65 [#/sec] (mean) Node (January 2011) $ ab -n 30000 -c 300 http://127.0.0.1:8124/ Concurrency Level: 300 Time taken for tests: 8.140 seconds Complete requests: 30000 Requests per second: 3685.69 [#/sec] (mean) http://www.olympum.com/java/java-aio-vs-nodejs/ http://www.olympum.com/java/java-aio-vs-nodejs/
Raynos 15y ago
It's pretty well known that Java hovers around 1.1x the speed of C where as JS hovers around 2-3x the speed of C. So yes Java is faster.
- mappu 15y ago
  { 'offtopic' : " I totally agree with you, but i just want to draw your attention to the phrase 'the speed of C'. You almost make it seem like it's a global constant, like the real C-for-celeritas speed of light, some unobtainable blazingly fast mirage accessible only to quantum physicists and unix greybeards.. but we don't need a particle accelerator to beat the performance of C, just better JITters. There's not really anything in the language stopping the performance from being reached (okay, well for JS there's the type system.) " }
  - Raynos 15y ago
    When I say the speed of C. I'm really comparing various language X compilers to the GCC compiler under the assumption that the GCC compiler is the best. No it's not a magical constant but I think for a baseline comparison "how close your compiler X is to GCC" is a fair thing to compare. I also doubt V8 or spidermonkey can get better then GCC _on average_
- grannyg00se 15y ago
  Thanks for the replies. I wasn't aware that JS was that much slower than Java, and I also wasn't aware that Java had closed the gap so significantly vs C.