Re: the fastest way to create a directory

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From	Rainer Weikusat <rweikusat@mssgmbh.com>
Newsgroups	comp.lang.perl.misc
Subject	Re: the fastest way to create a directory
Date	Fri, 19 Jul 2013 10:46:05 +0100
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"George Mpouras"
<nospam.gravitalsun.antispam@spamno.hotmail.anispam.com.nospam>
writes:
> Believe it or the following makes 18 uneccassery disk accesses

[...]

> use Errno qw(EEXIST ENOTDIR);
> my $access=0;
> mkdir_p("/opt/d1/d2/d3/d4/d5") or die("$!");
> mkdir_p("/opt/d1/d2/d3/d4/d5") or die("$!");
> mkdir_p("/opt/d1/d2/d3/d4/d5") or die("$!");
> print "disk touches : $access\n";

If it does, you're kernel is seriously disabled. Leaving this aside,
that's the expected result when you call it uselessly three times in a
row with an argument like that.

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the fastest way to create a directory George Mpouras <nospam.gravitalsun.noadsplease@hotmail.noads.com> - 2013-07-15 14:09 +0300
  Re: the fastest way to create a directory Henry Law <news@lawshouse.org> - 2013-07-15 15:44 +0100
    Re: the fastest way to create a directory "George Mpouras" <nospam.gravitalsun.antispam@spamno.hotmail.anispam.com.nospam> - 2013-07-15 18:45 +0300
      Re: the fastest way to create a directory Charlton Wilbur <cwilbur@chromatico.net> - 2013-07-15 15:36 -0400
        Re: the fastest way to create a directory "George Mpouras" <nospam.gravitalsun.antispam@spamno.hotmail.anispam.com.nospam> - 2013-07-16 00:07 +0300
      Re: the fastest way to create a directory "Peter J. Holzer" <hjp-usenet3@hjp.at> - 2013-07-15 23:55 +0200
  Re: the fastest way to create a directory tmcd@panix.com (Tim McDaniel) - 2013-07-15 20:27 +0000
    Re: the fastest way to create a directory "George Mpouras" <nospam.gravitalsun.antispam@spamno.hotmail.anispam.com.nospam> - 2013-07-16 00:04 +0300
      Re: the fastest way to create a directory "Peter J. Holzer" <hjp-usenet3@hjp.at> - 2013-07-16 00:02 +0200
        Re: the fastest way to create a directory "George Mpouras" <nospam.gravitalsun.antispam@spamno.hotmail.anispam.com.nospam> - 2013-07-18 00:16 +0300
      Re: the fastest way to create a directory tmcd@panix.com (Tim McDaniel) - 2013-07-15 22:16 +0000
      Re: the fastest way to create a directory Charlton Wilbur <cwilbur@chromatico.net> - 2013-07-18 15:49 -0400
        Re: the fastest way to create a directory Henry Law <news@lawshouse.org> - 2013-07-18 21:47 +0100
          Re: the fastest way to create a directory "Peter J. Holzer" <hjp-usenet3@hjp.at> - 2013-07-19 15:25 +0200
            Re: the fastest way to create a directory Rainer Weikusat <rweikusat@mssgmbh.com> - 2013-07-19 14:51 +0100
            Re: the fastest way to create a directory Keith Keller <kkeller-usenet@wombat.san-francisco.ca.us> - 2013-07-19 08:39 -0700
          Re: the fastest way to create a directory Charlton Wilbur <cwilbur@chromatico.net> - 2013-07-21 23:19 -0400
            Re: the fastest way to create a directory Henry Law <news@lawshouse.org> - 2013-07-22 07:10 +0100
              Re: the fastest way to create a directory Charlton Wilbur <cwilbur@chromatico.net> - 2013-07-22 17:31 -0400
        Re: the fastest way to create a directory Rainer Weikusat <rweikusat@mssgmbh.com> - 2013-07-19 16:40 +0100
  Re: the fastest way to create a directory Ben Morrow <ben@morrow.me.uk> - 2013-07-15 23:40 +0100
    Re: the fastest way to create a directory "Peter J. Holzer" <hjp-usenet3@hjp.at> - 2013-07-16 23:44 +0200
      Re: the fastest way to create a directory George Mpouras <nospam.gravitalsun.noadsplease@hotmail.noads.com> - 2013-07-17 11:09 +0300
        Re: the fastest way to create a directory "Peter J. Holzer" <hjp-usenet3@hjp.at> - 2013-07-17 10:24 +0200
      Re: the fastest way to create a directory George Mpouras <nospam.gravitalsun.noadsplease@hotmail.noads.com> - 2013-07-17 11:10 +0300
      Re: the fastest way to create a directory Rainer Weikusat <rweikusat@mssgmbh.com> - 2013-07-17 10:49 +0100
        Re: the fastest way to create a directory "Peter J. Holzer" <hjp-usenet3@hjp.at> - 2013-07-17 22:37 +0200
          Re: the fastest way to create a directory Rainer Weikusat <rweikusat@mssgmbh.com> - 2013-07-17 22:22 +0100
          Re: the fastest way to create a directory Ben Morrow <ben@morrow.me.uk> - 2013-07-19 16:21 +0100
            Re: the fastest way to create a directory "Peter J. Holzer" <hjp-usenet3@hjp.at> - 2013-07-19 22:11 +0200
        Re: the fastest way to create a directory "George Mpouras" <nospam.gravitalsun.antispam@spamno.hotmail.anispam.com.nospam> - 2013-07-18 00:14 +0300
          Re: the fastest way to create a directory tmcd@panix.com (Tim McDaniel) - 2013-07-17 21:21 +0000
          Re: the fastest way to create a directory Rainer Weikusat <rweikusat@mssgmbh.com> - 2013-07-17 22:31 +0100
            Re: the fastest way to create a directory "George Mpouras" <nospam.gravitalsun.antispam@spamno.hotmail.anispam.com.nospam> - 2013-07-19 00:02 +0300
              Re: the fastest way to create a directory Rainer Weikusat <rweikusat@mssgmbh.com> - 2013-07-19 10:46 +0100
                Re: the fastest way to create a directory Rainer Weikusat <rweikusat@mssgmbh.com> - 2013-07-19 10:51 +0100
                Re: the fastest way to create a directory Rainer Weikusat <rweikusat@mssgmbh.com> - 2013-07-19 12:09 +0100
          Re: the fastest way to create a directory Keith Keller <kkeller-usenet@wombat.san-francisco.ca.us> - 2013-07-17 22:37 -0700
            Re: the fastest way to create a directory Justin C <justin.1303@purestblue.com> - 2013-07-18 09:15 +0100
  Re: the fastest way to create a directory "George Mpouras" <nospam.gravitalsun.antispam@spamno.hotmail.anispam.com.nospam> - 2013-07-19 01:01 +0300
    Re: the fastest way to create a directory "George Mpouras" <nospam.gravitalsun.antispam@spamno.hotmail.anispam.com.nospam> - 2013-07-19 01:07 +0300
  Re: the fastest way to create a directory "George Mpouras" <nospam.gravitalsun.antispam@spamno.hotmail.anispam.com.nospam> - 2013-07-23 09:33 +0300

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