07-06-2011
I am also quite sceptical.
By the way,
ls perform an ascii sorting by default if you are in a directory with several tousands of files, this sorting operation can be consumming and may slow down the processing.
To avoid it you can use the
-f option to get the inode in the order they will comme from the directory structure, this will avoid useless sorting, especially when you pipe your ls output in a
wc -l
A lot of the performance problem are because of weak algorithm logic or approach, going through a redesigning step logic can then speed up processing.
I am curious to see the code of the initial "poor performance" script that was using the
find command.
Sharing your code is still a nice intention.
Here are some example of performance problem because of wrong logic or bad use of find command :
https://www.unix.com/shell-programmin...nce-issue.html
https://www.unix.com/unix-dummies-que...-txt-file.html
Last edited by ctsgnb; 07-06-2011 at 03:08 PM..
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LEARN ABOUT MOJAVE
uri::url
URI::URL(3) User Contributed Perl Documentation URI::URL(3)
NAME
URI::URL - Uniform Resource Locators
SYNOPSIS
$u1 = URI::URL->new($str, $base);
$u2 = $u1->abs;
DESCRIPTION
This module is provided for backwards compatibility with modules that depend on the interface provided by the "URI::URL" class that used to
be distributed with the libwww-perl library.
The following differences exist compared to the "URI" class interface:
o The URI::URL module exports the url() function as an alternate constructor interface.
o The constructor takes an optional $base argument. The "URI::URL" class is a subclass of "URI::WithBase".
o The URI::URL->newlocal class method is the same as URI::file->new_abs.
o URI::URL::strict(1)
o $url->print_on method
o $url->crack method
o $url->full_path: same as ($uri->abs_path || "/")
o $url->netloc: same as $uri->authority
o $url->epath, $url->equery: same as $uri->path, $uri->query
o $url->path and $url->query pass unescaped strings.
o $url->path_components: same as $uri->path_segments (if you don't consider path segment parameters)
o $url->params and $url->eparams methods
o $url->base method. See URI::WithBase.
o $url->abs and $url->rel have an optional $base argument. See URI::WithBase.
o $url->frag: same as $uri->fragment
o $url->keywords: same as $uri->query_keywords
o $url->localpath and friends map to $uri->file.
o $url->address and $url->encoded822addr: same as $uri->to for mailto URI
o $url->groupart method for news URI
o $url->article: same as $uri->message
SEE ALSO
URI, URI::WithBase
COPYRIGHT
Copyright 1998-2000 Gisle Aas.
perl v5.18.2 2012-02-11 URI::URL(3)