Re: Cracking DES with C++ is faster than Java?

From: Andrew Swallow (am.swallow_at_eatspam.btinternet.com)
Date: 04/28/04

  • Next message: Neil Daniell: "Menu accelerators in Java app" 
    Date: Wed, 28 Apr 2004 12:18:12 +0000 (UTC)

    "Jerry Coffin" <jcoffin@taeus.com> wrote in message
    news:b2e4b04.0404271646.24e70541@posting.google.com...
    [snip]
    > If anything, it looks to me like thie situation is getting worse: I
    > don't think I've looked at anything in the last 5 years that was
    > nearly AS CLOSE to optimal as Control Data's FORTRAN IV compiler
    > typically produced 20+ years ago!
    >
    Computers can access fixed locations in memory
    faster that relative locations. Recursion requires
    local variables to be stored on the stack, i.e. to
    be accessed using relative locations. Data structures
    on the heap are even more complicated to access.

    Dynamic storage is very bad, you can see the computer
    stop for several thousand million clock cycles whilst the
    garbage collector tries to find some more memory.

    Andrew Swallow

  • Next message: Neil Daniell: "Menu accelerators in Java app"

    Relevant Pages

    • Re: Cracking DES with C++ is faster than Java?
      ... >> Computers can access fixed locations in memory ... One of the disadvantages of using absolute memory ... When the instruction is longer, either it will take more time ... >> be accessed using relative locations. ...
      (comp.lang.java)
    • Re: Cracking DES with C++ is faster than Java?
      ... >> Computers can access fixed locations in memory ... One of the disadvantages of using absolute memory ... When the instruction is longer, either it will take more time ... >> be accessed using relative locations. ...
      (comp.lang.cpp)
    • Re: Cracking DES with C++ is faster than Java?
      ... >> Computers can access fixed locations in memory ... One of the disadvantages of using absolute memory ... When the instruction is longer, either it will take more time ... >> be accessed using relative locations. ...
      (sci.crypt)
    • Re: Cracking DES with C++ is faster than Java?
      ... Computers can access fixed locations in memory ... be accessed using relative locations. ... garbage collector tries to find some more memory. ...
      (sci.crypt)
    • Re: Cracking DES with C++ is faster than Java?
      ... Computers can access fixed locations in memory ... be accessed using relative locations. ... garbage collector tries to find some more memory. ...
      (comp.lang.cpp)