Filesys::DiskUsage::Fast - A fast disk usage counter (du) with XS
use Filesys::DiskUsage::Fast qw(du); my $total = du( $dir ); my $total = du( $dir1, $dir2, ... );
A simple but fast disk usage counter implemented as XS module.
Returns total byte number contained in directories specified.
my $total = du("/usr/local"); my $total = du("/bin", "/sbin", "/usr/bin", "/usr/sbin");
If true, errors will be warn()ed. Default is true. Set false to suppress warnings (not found, permission denied etc).
local $Filesys::DiskUsage::Fast::ShowWarnings = 0; du(...);
If > 0, the specified size is used to calculate the block size. Default value is 0, returns real occupied size.
local $Filesys::DiskUsage::Fast::SectorSize = 4096; du(...);
s/iter pp xs pp 1.35 -- -85% xs 0.197 584% --
tested on a directory contains around 11GB 3300+ files, CentOS 5 (HDD).
All symbolic links always result 0 byte. Block, FIFO and other special files may not be counted accurately.
Ryo Okamoto <firstname.lastname@example.org>
Copyright (c) Ryo Okamoto, all rights reserved.
This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.