mirror of
https://github.com/percona/percona-toolkit.git
synced 2025-09-10 05:00:45 +00:00
141 lines
4.0 KiB
Perl
141 lines
4.0 KiB
Perl
# This program is copyright 2011 Percona Inc.
|
|
# Feedback and improvements are welcome.
|
|
#
|
|
# THIS PROGRAM IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR IMPLIED
|
|
# WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
|
|
# MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
|
|
#
|
|
# This program is free software; you can redistribute it and/or modify it under
|
|
# the terms of the GNU General Public License as published by the Free Software
|
|
# Foundation, version 2; OR the Perl Artistic License. On UNIX and similar
|
|
# systems, you can issue `man perlgpl' or `man perlartistic' to read these
|
|
# licenses.
|
|
#
|
|
# You should have received a copy of the GNU General Public License along with
|
|
# this program; if not, write to the Free Software Foundation, Inc., 59 Temple
|
|
# Place, Suite 330, Boston, MA 02111-1307 USA.
|
|
# ###########################################################################
|
|
# DiskstatsGroupByDisk package
|
|
# ###########################################################################
|
|
{
|
|
# Package: DiskstatsGroupByDisk
|
|
#
|
|
|
|
package DiskstatsGroupByDisk;
|
|
|
|
use warnings;
|
|
use strict;
|
|
use English qw(-no_match_vars);
|
|
use constant MKDEBUG => $ENV{MKDEBUG} || 0;
|
|
|
|
use base qw( Diskstats );
|
|
|
|
sub new {
|
|
my ($class, %args) = @_;
|
|
my $self = $class->SUPER::new(%args);
|
|
$self->{_iterations} = 0;
|
|
$self->{_print_header} = 1;
|
|
return $self;
|
|
}
|
|
|
|
sub group_by {
|
|
my $self = shift;
|
|
$self->group_by_disk(@_);
|
|
}
|
|
|
|
# Prints out one line for each disk, summing over the interval from first to
|
|
# last sample.
|
|
sub group_by_disk {
|
|
my ($self, %args) = @_;
|
|
my ($header_cb, $rest_cb) = $args{ qw( header_cb rest_cb ) };
|
|
|
|
if (!$self->interactive()) {
|
|
$self->clear_state();
|
|
}
|
|
|
|
my $original_offset = $args{filehandle} ? tell($args{filehandle}) : undef;
|
|
|
|
my $lines_read = $self->parse_from(
|
|
sample_callback => sub {
|
|
my ($self, $ts) = @_;
|
|
|
|
if ( $self->has_stats ) {
|
|
$self->{_iterations}++;
|
|
if ($self->interactive() && $self->{_iterations} >= 2) {
|
|
my $elapsed =
|
|
( $self->current_ts() || 0 ) -
|
|
( $self->first_ts() || 0 );
|
|
if ( $ts > 0 && $elapsed >= $self->{interval} ) {
|
|
$self->print_deltas(
|
|
header_cb => sub {
|
|
my ($self, @args) = @_;
|
|
|
|
if ( $self->{_print_header} ) {
|
|
my $meth = $args{header_cb} || "print_header";
|
|
$self->$meth(@args);
|
|
}
|
|
$self->{_print_header} = undef;
|
|
},
|
|
rest_cb => $args{rest_cb},
|
|
);
|
|
|
|
$self->{_iterations} = -1;
|
|
return "Stop interactive reading";
|
|
}
|
|
}
|
|
}
|
|
},
|
|
map({ ($_ => $args{$_}) } qw(filehandle filename data)),
|
|
);
|
|
|
|
if ($self->interactive) {
|
|
if ($self->{_iterations} == -1 && defined($original_offset) && eof($args{filehandle})) {
|
|
$self->clear_state;
|
|
seek $args{filehandle}, $original_offset, 0;
|
|
}
|
|
return $lines_read;
|
|
}
|
|
|
|
if ( $self->{_iterations} < 2 ) {
|
|
return;
|
|
}
|
|
|
|
$self->print_deltas( map( { ( $_ => $args{$_} ) } qw( header_cb rest_cb ) ) );
|
|
|
|
$self->clear_state;
|
|
|
|
return $lines_read;
|
|
}
|
|
|
|
sub clear_state {
|
|
my ($self, @args) = @_;
|
|
$self->{_iterations} = 0;
|
|
$self->SUPER::clear_state(@args);
|
|
}
|
|
|
|
sub compute_line_ts {
|
|
my ($self, %args) = @_;
|
|
return "{" . ($self->{_iterations} - 1) . "}";
|
|
}
|
|
|
|
sub delta_against {
|
|
my ($self, $dev) = @_;
|
|
return $self->first_stats_for($dev);
|
|
}
|
|
|
|
sub delta_against_ts {
|
|
my ($self) = @_;
|
|
return $self->first_ts();
|
|
}
|
|
|
|
sub compute_in_progress {
|
|
my ($self, $in_progress, $tot_in_progress) = @_;
|
|
return $tot_in_progress / ($self->{_iterations} - 1);
|
|
}
|
|
|
|
1;
|
|
}
|
|
# ###########################################################################
|
|
# End DiskstatsGroupByDisk package
|
|
# ###########################################################################
|