minix/commands/profile/tools/profextr.pl

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660 B
Perl
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#!/usr/local/bin/perl
$SAMPLE_SZ = 12;
$file = shift;
open (FILE, $file) or die ("Unable to open $file: $!");
$_ = <FILE>;
until (eof(FILE)) {
read(FILE, $buf, $SAMPLE_SZ) == $SAMPLE_SZ or die ("Short read.");
($exe, $pc) = unpack("A8i", $buf);
# System and clock task are in kernel image.
# $exe =~ s/^system/kernel/;
# $exe =~ s/^clock/kernel/;
# Memory has p_name "mem" in kernel.
# $exe =~ s/^mem/memory/;
$pcs{$pc}++ if ($exe eq "fs");
}
foreach $pc (sort { $a <=> $b } keys %pcs) {
print "$pc $pcs{$pc}\n";
}