When dealing with quantities of this amount, you probably want to know the behaviors of your file system.

To continue on kennethk's post, you should also make a decision based on your type of file system. 10K files can be too many files for a standard UFS file system to stand up to (because of needing to read more blocks for a directory than can be handled by a single read). One email processing system uses a directory size of 23 (IIRC) to increase its performance because of this. In the case of 1 million files, you would need to go 4 directories deep to handle 1,000,000 files in a small number of reads.

See Re: Efficient processing of large directory and Unix_File_System for more information.

--MidLifeXis

In reply to Re: how to write < 10K files to folder by MidLifeXis
in thread how to write < 10K files to folder by chuckd

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.