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Re^2: Subroutine overhead in Perl

by enemyofthestate (Scribe)
on Nov 06, 2007 at 18:40 UTC ( #649314=note: print w/ replies, xml ) Need Help??


in reply to Re: Subroutine overhead in Perl
in thread Subroutine overhead in Perl

We just used /usr/bin/time to measure the over all execution time:

$ time java -cp $CLASSPATH:. SudoKu d.txt $ time ./sudoku.pl <d.txt


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Re^3: Subroutine overhead in Perl
by traveler (Parson) on Nov 07, 2007 at 00:03 UTC
    It has been a while since I have developed java code, but I think this means the java was already compiled, while the compile time was included in the perl.

      So? Aside that it's not entirely true — Java run-time engines typically compile Java bytecode into native code at run-time — it is not standard behaviour to run Java programs from their sources. Perl's developers made a choice to parse the source every time, and Java should not be penalized for it.

        I'm sorry: I was probably not clear. The timing for 'java' does not include the 'javac' step, but the perl timing includes the conversion of source to code for the interpreter. I was just suggesting that the 'time' commands were not timing the same things.

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