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Re^3: Optimise file line by line parsing, substitute SPLIT

by BrowserUk (Pope)
on Jun 05, 2013 at 00:14 UTC ( #1037081=note: print w/ replies, xml ) Need Help??


in reply to Re^2: Optimise file line by line parsing, substitute SPLIT
in thread Optimise file line by line parsing, substitute SPLIT

... thus confirming that, indeed, this is an I/O-bound process that benefits quite substantially from parallelism at (at least...) a factor of x4. As would be expected.

Even with the code and evidence right there for your inspection, you draw completely the wrong conclusion.

{blah} In this way, each utility could be told to process a segment of the file.

Prove it by posting the code. You won't (because you can't). Talk is cheap (and in your case invariably wrong!).

What makes my code work is that all the IO is sequential. And that requires shared state.


With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday'
Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
"Science is about questioning the status quo. Questioning authority".
In the absence of evidence, opinion is indistinguishable from prejudice.


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