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Author image Jens Rehsack
and 2 contributors

NAME

Unix::Statgrab::sg_disk_io_stats - container for libstatgrab disk I/O statistics

DESCRIPTION

Unix::Statgrab::sg_disk_io_stats is a Perl package name providing accessors to bundled libstatgrab sg_disk_io_stats disk I/O statistics.

METHODS

nentries

Returns the number of entries in the container.

systime

Returns the seconds since Epoch (0:00:00 on January, 1st 1970) of the time measure the disk I/O statistics.

as_list

Deprecated alias of "fetchall_hash"

fetchall_hash

Returns all records from sg_disk_io_stats container as list of hash containing each datum name as key and the datum as value.

fetchall_array

Returns all records from sg_disk_io_stats container as list of arrays containing the values in following order:

  (disk_name read_bytes write_bytes systime)

in that order without leading headline.

fetchall_table

Returns all records from sg_disk_io_stats container as list of arrays containing the values in following order:

  (disk_name read_bytes write_bytes systime)

in that order including leading headline.

fetchrow_arrayref($row = 0)

Returns one row as array containing values as above.

fetchall_arrayref

Returns all records from sg_disk_io_stats container as array of arrays without header.

fetchrow_hashref($row = 0)

Returns one row as hash containing { disk_name => $self.disk_name($row), read_bytes => ... }.

fetchall_hashref

Returns all records from sg_disk_io_stats container as array of hashes.

colnames

Returns list of column names: (disk_name read_bytes write_bytes systime)

disk_name

Name of the disk device of the I/O statistics

read_bytes

Bytes read from disk

write_bytes

Bytes written to disk

get_disk_io_stats_diff

Provides the difference between the last measurement and the recent one.

  $recent->get_disk_io_stats_diff($last);

AUTHOR

Jens Rehsack, <rehsack AT cpan.org>

COPYRIGHT AND LICENSE

Copyright (C) 2012-2018 by Jens Rehsack

This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version.