5 my @cpu_stat_t0 = proc_stat
();
7 my @cpu_stat_t1 = proc_stat
();
9 for (my $cpu_i = 0; $cpu_i < (scalar @cpu_stat_t0); $cpu_i++) {
10 my @stat_t0 = split /\s+/, $cpu_stat_t0[$cpu_i];
11 my @stat_t1 = split /\s+/, $cpu_stat_t1[$cpu_i];
12 my ($t0_idle, $t1_idle) = ($stat_t0[3], $stat_t1[3]);
13 my ($t0_total, $t1_total) = (0, 0);
14 $t0_total += $_ foreach @stat_t0;
15 $t1_total += $_ foreach @stat_t1;
17 my $load = ($t1_total - $t0_total == 0) ?
100:
18 int((100 * (($t1_total - $t0_total) - ($t1_idle - $t0_idle))/($t1_total - $t0_total)) + 0.5);
19 print " +" unless ($cpu_i == 0);
20 printf "% 5.1f%% ", $load;
23 printf " = % 6.1f%%\n", $total;
26 return grep {s/^cpu\d+\s//} read_file
('/proc/stat');