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Re^2: Edit huge file

by BrowserUk (Pope)
on Jun 18, 2013 at 22:45 UTC ( #1039685=note: print w/ replies, xml ) Need Help??


in reply to Re: Edit huge file
in thread Edit huge file

Disclaimer: I have limited experience with Tie::File, so not sure how it performs w/ larger files.

Horribly!


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.


Comment on Re^2: Edit huge file
Re^3: Edit huge file
by frozenwithjoy (Curate) on Jun 19, 2013 at 00:49 UTC
    Thanks. For my own future reference, do you have a suggestion for a file size that is too large to use with Tie::File?

      Hm. Say 1000 lines/100kB.

      Its actually not too bad for files ~10x that iff you know

      1. how it works:

        An LRU cache of limited size:

      2. what not to do:

        Don't use @theArray in either a list or scalar context;

      3. configure it correctly:

        The memory and dw_size options can interact in interesting but unintuitive ways.

        Bigger is not always better, especially if the predominant operations are deletion or insertion of whole lines, rather than in-place modification of existing lines.


      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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