383 lines
9.1 KiB
Perl
Executable file
383 lines
9.1 KiB
Perl
Executable file
#!/usr/pkg/bin/perl
|
|
#
|
|
# sprofalyze.pl
|
|
#
|
|
# Analyzes the output files created by the profile command for
|
|
# Statistical Profiling.
|
|
#
|
|
# Changes:
|
|
# 14 Aug, 2006 Created (Rogier Meurs)
|
|
#
|
|
|
|
# Configuration options:
|
|
|
|
# Location and parameters of nm program to extract symbol tables
|
|
$acknm = "/usr/bin/acknm -dn";
|
|
$gnm = "/usr/pkg/bin/nm --radix=d -n";
|
|
|
|
# Location of src (including trailing /)
|
|
$src_root = qw(
|
|
/usr/src/
|
|
);
|
|
|
|
# Location of system executables within src. Add new servers/drivers here.
|
|
# This should be replaced with something less maintenance-prone some day.
|
|
@exes = qw(
|
|
kernel/kernel
|
|
|
|
servers/ds/ds
|
|
servers/hgfs/hgfs
|
|
servers/inet/inet
|
|
servers/ipc/ipc
|
|
servers/is/is
|
|
servers/iso9660fs/isofs
|
|
servers/mfs/mfs
|
|
servers/pfs/pfs
|
|
servers/pm/pm
|
|
servers/procfs/procfs
|
|
servers/rs/rs
|
|
servers/sched/sched
|
|
servers/vfs/vfs
|
|
servers/vm/vm
|
|
servers/sched/sched
|
|
commands/service/service
|
|
|
|
drivers/ahci/ahci
|
|
drivers/acpi/acpi
|
|
drivers/amddev/amddev
|
|
drivers/at_wini/at_wini
|
|
drivers/atl2/atl2
|
|
drivers/audio/es1370/es1370
|
|
drivers/audio/es1371/es1371
|
|
drivers/bios_wini/bios_wini
|
|
drivers/dec21140A/dec21140A
|
|
drivers/dp8390/dp8390
|
|
drivers/dpeth/dpeth
|
|
drivers/e1000/e1000
|
|
drivers/filter/filter
|
|
drivers/floppy/floppy
|
|
drivers/fxp/fxp
|
|
drivers/lance/lance
|
|
drivers/log/log
|
|
drivers/memory/memory
|
|
drivers/orinoco/orinoco
|
|
drivers/pci/pci
|
|
drivers/printer/printer
|
|
drivers/random/random
|
|
drivers/rtl8139/rtl8139
|
|
drivers/rtl8169/rtl8169
|
|
drivers/ti1225/ti1225
|
|
drivers/tty/tty
|
|
);
|
|
|
|
# 8< ----------- no user configurable parameters below this line ----------- >8
|
|
|
|
$SAMPLE_SIZE = 12;
|
|
$MINIMUM_PERC = 1.0;
|
|
|
|
|
|
if ($#ARGV < 0 || process_args(@ARGV)) {
|
|
print "Usage:\n";
|
|
print " sprofalyze.pl [-p percentage] file ...\n\n";
|
|
print " percentage print only processes/functions >= percentage\n";
|
|
exit 1;
|
|
}
|
|
|
|
sub process_args {
|
|
$_ = shift;
|
|
|
|
if (/^-p$/) {
|
|
$_ = shift;
|
|
return 1 unless /^(\d{1,2})(.\d+)?$/;
|
|
$MINIMUM_PERC = $1 + $2;
|
|
} else {
|
|
unshift @_, $_;
|
|
}
|
|
|
|
@files = @_;
|
|
|
|
return 1 unless @files > 0;
|
|
|
|
return 0;
|
|
}
|
|
|
|
if (read_symbols()) { exit 1; }
|
|
|
|
print "Showing processes and functions using at least $MINIMUM_PERC% time.\n";
|
|
|
|
foreach $file (@files) {
|
|
if (process_datafile($file)) { exit 1; }
|
|
}
|
|
|
|
exit 0;
|
|
|
|
|
|
sub short_name
|
|
{
|
|
my $shortname = shift;
|
|
$shortname =~ s/^.*\///;
|
|
return substr($shortname, 0, 7);
|
|
}
|
|
|
|
|
|
sub read_symbols
|
|
{
|
|
print "Building indexes from symbol tables:";
|
|
|
|
for ($i=0; $i<= $#exes; $i++) {
|
|
my $exe = @exes[$i];
|
|
$shortname = $exe;
|
|
$shortname =~ s/^.*\///;
|
|
print " " if $i <= $#exes;
|
|
print $shortname;
|
|
$shortname = short_name($exe);
|
|
|
|
$fullname = $src_root . $exe;
|
|
|
|
if ((! -x $fullname) || (! -r $fullname)) {
|
|
print "\nWARNING: $fullname does not exist or not readable.\n";
|
|
print "Did you do a make?\n";
|
|
next;
|
|
}
|
|
|
|
if (`file $fullname | grep NSYM`) {
|
|
$nm = $gnm;
|
|
} else {
|
|
$nm = $acknm;
|
|
}
|
|
# Create a hash entry for each symbol table (text) entry.
|
|
foreach $_ (`$nm $fullname`) {
|
|
if (/^0{0,7}(\d{0,8})\s[tT]\s(\w{1,32})\n$/) {
|
|
${$shortname."_hash"}{$1} = $2;
|
|
}
|
|
}
|
|
|
|
# Create hash entries for every possible pc value. This will pay off.
|
|
@lines = sort { $a <=> $b } keys %{$shortname."_hash"};
|
|
|
|
for ($y = 0; $y <= $#lines; $y++) {
|
|
for ($z = @lines->[$y] + 1; $z < @lines->[$y + 1]; $z++) {
|
|
${$shortname."_hash"}{$z} =
|
|
${$shortname."_hash"}{@lines->[$y]}
|
|
}
|
|
}
|
|
}
|
|
|
|
# Clock and system are in kernel image but are seperate processes.
|
|
push(@exes, "clock");
|
|
push(@exes, "system");
|
|
%clock_hash = %kernel_hash;
|
|
%system_hash = %kernel_hash;
|
|
|
|
print ".\n\n";
|
|
return 0;
|
|
}
|
|
|
|
|
|
sub process_datafile
|
|
{
|
|
my %res = ();
|
|
my %merged = ();
|
|
my $file = shift;
|
|
my $buf, $pc, $exe, $total_system_perc;
|
|
|
|
unless (open(FILE, $file)) {
|
|
print "\nERROR: Unable to open $file: $!\n";
|
|
return 0;
|
|
}
|
|
|
|
# First line: check file type.
|
|
$_ = <FILE>; chomp;
|
|
if (!/^stat$/) {
|
|
if (/^call$/) {
|
|
print "Call Profiling output file: ";
|
|
print "Use cprofalyze.pl instead.\n";
|
|
} else {
|
|
print "Not a profiling output file.\n";
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
$file =~ s/^.*\///;
|
|
|
|
printf "\n========================================";
|
|
printf "========================================\n";
|
|
printf("Data file: %s\n", $file);
|
|
printf "========================================";
|
|
printf "========================================\n\n";
|
|
|
|
# Read header with total, idle, system and user hits.
|
|
$_ = <FILE>;
|
|
chomp;
|
|
|
|
($total_hits, $idle_hits, $system_hits, $user_hits) = split (/ /);
|
|
|
|
my $system_perc = sprintf("%3.f", $system_hits / $total_hits * 100);
|
|
my $user_perc = sprintf("%3.f", $user_hits / $total_hits * 100);
|
|
my $idle_perc = 100 - $system_perc - $user_perc;
|
|
|
|
printf(" System process ticks: %10d (%3d%%)\n", $system_hits, $system_perc);
|
|
printf(" User process ticks: %10d (%3d%%)", $user_hits, $user_perc);
|
|
printf(" Details of system process\n");
|
|
printf(" Idle time ticks: %10d (%3d%%)", $idle_hits, $idle_perc);
|
|
printf(" samples, aggregated and\n");
|
|
printf(" ---------- ----");
|
|
printf(" per process, are below.\n");
|
|
printf(" Total ticks: %10d (100%)\n\n", $total_hits);
|
|
|
|
# Read sample records from file and increase relevant counters.
|
|
until (eof(FILE)) {
|
|
read(FILE, $buf, $SAMPLE_SIZE) == $SAMPLE_SIZE or die ("Short read.");
|
|
($exe, $pc) = unpack("Z8i", $buf);
|
|
|
|
# The kernel mangles process names for debugging purposes.
|
|
# We compensate for that here.
|
|
$exe =~ s/\*F$//;
|
|
|
|
# We can access the hash by pc because they are all in there.
|
|
if (!defined(${$exe."_hash"}{$pc})) {
|
|
print "ERROR: Undefined in symbol table indexes: ";
|
|
print "executable $exe address $pc\n";
|
|
print "Did you include this executable in the configuration?\n";
|
|
return 1;
|
|
}
|
|
$res{$exe}{${$exe."_hash"}{$pc}} ++;
|
|
}
|
|
|
|
# We only need to continue with executables that had any hits.
|
|
my @actives = ();
|
|
foreach my $exe (@exes) {
|
|
$exe = short_name($exe);
|
|
next if (!exists($res{$exe}));
|
|
push(@actives, $exe);
|
|
}
|
|
|
|
# Calculate number of samples for each executable and create aggregated hash.
|
|
%exe_hits = ();
|
|
foreach $exe (@actives) {
|
|
foreach my $hits (values %{$res{$exe}}) {
|
|
$exe_hits{$exe} += $hits;
|
|
}
|
|
|
|
foreach my $key (keys %{$res{$exe}}) {
|
|
$merged{sprintf("%8s %32s", $exe, $key)} = $res{$exe}{$key};
|
|
}
|
|
}
|
|
|
|
$total_system_perc = 0;
|
|
# Print the aggregated results.
|
|
process_hash("", \%merged);
|
|
|
|
# Print results for each executable in decreasing order.
|
|
foreach my $exe
|
|
(reverse sort { $exe_hits{$a} <=> $exe_hits{$b} } keys %exe_hits)
|
|
{
|
|
process_hash($exe, \%{$res{$exe}}) if
|
|
$exe_hits{$exe} >= $system_hits / 100 * $MINIMUM_PERC;
|
|
}
|
|
|
|
# Print total of processes <threshold.
|
|
printf "----------------------------------------";
|
|
printf "----------------------------------------\n";
|
|
printf("%-47s %5.1f%% of system process samples\n",
|
|
"processes <$MINIMUM_PERC% (not showing functions)",
|
|
100 - $total_system_perc);
|
|
printf "----------------------------------------";
|
|
printf "----------------------------------------\n";
|
|
printf("%-47s 100.0%%\n\n", "total");
|
|
|
|
close(FILE);
|
|
return 0;
|
|
}
|
|
|
|
|
|
sub process_hash
|
|
{
|
|
my $exe = shift;
|
|
my $ref = shift;
|
|
%hash = %{$ref};
|
|
my $aggr = $exe eq "";
|
|
|
|
# Print a header.
|
|
printf "----------------------------------------";
|
|
printf "----------------------------------------\n";
|
|
if ($aggr) {
|
|
$astr_max = 31;
|
|
$perc_hits = $system_hits / 100;
|
|
printf("Total system process time %46d samples\n", $system_hits);
|
|
} else {
|
|
$astr_max = 40;
|
|
$perc_hits = $exe_hits{$exe} / 100;
|
|
$total_system_perc += $exe_perc =
|
|
sprintf("%5.1f", $exe_hits{$exe} / $system_hits * 100);
|
|
printf("%-47s %5.1f%% of system process samples\n", $exe, $exe_perc);
|
|
}
|
|
printf "----------------------------------------";
|
|
printf "----------------------------------------\n";
|
|
|
|
|
|
# Delete functions <threshold. Get percentage for all functions >threshold.
|
|
my $below_thres_hits;
|
|
my $total_exe_perc;
|
|
foreach my $func (keys %hash)
|
|
{
|
|
if ($hash{$func} < $perc_hits * $MINIMUM_PERC) {
|
|
$below_thres_hits += $hash{$func};
|
|
delete($hash{$func});
|
|
} else {
|
|
$total_exe_perc += sprintf("%3.1f", $hash{$func} / $perc_hits);
|
|
}
|
|
}
|
|
|
|
# Now print the hash entries in decreasing order.
|
|
@sorted = reverse sort { $hash{$a} <=> $hash{$b} } keys %hash;
|
|
|
|
$astr_hits = ($hash{@sorted->[0]} > $below_thres_hits ?
|
|
$hash{@sorted->[0]} : $below_thres_hits) / $astr_max;
|
|
|
|
foreach $func (@sorted) {
|
|
process_line($func, $hash{$func});
|
|
}
|
|
|
|
# Print <threshold hits.
|
|
my $below_thres;
|
|
if ($aggr) { $below_thres = " "; }
|
|
$below_thres .= sprintf("%8s", "<" . $MINIMUM_PERC . "%");
|
|
process_line($below_thres, $below_thres_hits, 100 - $total_exe_perc);
|
|
|
|
# Print footer.
|
|
printf "----------------------------------------";
|
|
printf "----------------------------------------\n";
|
|
printf("%-73s 100.0%%\n\n", $aggr ? "total" : $exe);
|
|
}
|
|
|
|
|
|
sub process_line
|
|
{
|
|
my $func = shift;
|
|
my $hits = shift;
|
|
|
|
my $perc = $hits / $perc_hits;
|
|
my $astr = $hits / $astr_hits;
|
|
|
|
if ($aggr) {
|
|
print "$func ";
|
|
} else {
|
|
printf("%32s ", $func);
|
|
}
|
|
for ($i = 0; $i < $astr_max; $i++) {
|
|
if ($i <= $astr) {
|
|
print "*";
|
|
} else {
|
|
print " ";
|
|
}
|
|
}
|
|
print " ";
|
|
if (my $rest = shift) {
|
|
printf("%5.1f%%\n", $rest);
|
|
} else {
|
|
printf("%5.1f%%\n", $perc);
|
|
}
|
|
}
|
|
|