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Re^2: No Performance gain with Parallel::ForkManager

by walto (Pilgrim)
on Feb 24, 2014 at 16:55 UTC ( #1076003=note: print w/replies, xml ) Need Help??


in reply to Re: No Performance gain with Parallel::ForkManager
in thread No Performance gain with Parallel::ForkManager

Hi Karl, On Linux you can get the number of cores with
my $no_of_cores = system ('/usr/bin/nproc');
I also tested your approach to split the load onto each core. It was slower than McA suggegestion and the serial processing of files but faster than the original parallel processing.

real 0m0.531s, user 0m0.449s, sys 0m0.208s

But thanks for sharing your wisdom. I learnt a lot about making use of a multi core cpu and splitting workloads.

Replies are listed 'Best First'.
Re^3: No Performance gain with Parallel::ForkManager
by karlgoethebier (Abbot) on Feb 24, 2014 at 17:58 UTC
    " ...your approach to split the load...It was slower..."

    Seems like i lost once more ;-)

    "There seems to be something wrong with our bloody ships today." (David_Beatty,_1st_Earl_Beatty)

    Best regards, Karl

    «The Crux of the Biscuit is the Apostrophe»

      It was faster than...
      Always look on the bright side ;)

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