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Re^3: Perl slower than java

by trwww (Priest)
on Dec 09, 2010 at 04:51 UTC ( #876164=note: print w/ replies, xml ) Need Help??


in reply to Re^2: Perl slower than java
in thread Perl slower than java

perl >= 5.10 has gotten pretty bulky compared to older versions.

I'm a bit curious as to how fast the newest ruby and python run the same algorithms.

I bet if you would run the same code under perl 5.6 it would run a lot faster (the C data structures behind perl 5.6's variables are a lot more light weight). At least based on a very informal test we did here: Re^3: Why is this code so much slower than the same algorithm in C?.


Comment on Re^3: Perl slower than java
Re^4: Perl slower than java
by ysth (Canon) on Dec 09, 2010 at 07:10 UTC
    You have it backwards. The C data structures in 5.10 and greater are more light weight. Look elsewhere for the speed differences you have seen.
    --
    A math joke: r = | |csc(θ)|+|sec(θ)|-||csc(θ)|-|sec(θ)|| |
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      Yeah shouldn't have pointed out data structures being the cause when really I have no clue. I'm not really interested in digging up why one is faster than the other.

      I am interested in any educated guesses or ideas others may have. Any opinion/evidence on why 5.6 was so much faster in that example?

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