Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   1) #!/usr/bin/env perl
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   2) # This is a POC (proof of concept or piece of crap, take your pick) for reading the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3) # text representation of trace output related to page allocation. It makes an attempt
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4) # to extract some high-level information on what is going on. The accuracy of the parser
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5) # may vary considerably
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6) #
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7) # Example usage: trace-pagealloc-postprocess.pl < /sys/kernel/debug/tracing/trace_pipe
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8) # other options
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9) #   --prepend-parent	Report on the parent proc and PID
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10) #   --read-procstat	If the trace lacks process info, get it from /proc
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11) #   --ignore-pid	Aggregate processes of the same name together
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12) #
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13) # Copyright (c) IBM Corporation 2009
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14) # Author: Mel Gorman <mel@csn.ul.ie>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15) use strict;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16) use Getopt::Long;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18) # Tracepoint events
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19) use constant MM_PAGE_ALLOC		=> 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20) use constant MM_PAGE_FREE		=> 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21) use constant MM_PAGE_FREE_BATCHED	=> 3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22) use constant MM_PAGE_PCPU_DRAIN		=> 4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23) use constant MM_PAGE_ALLOC_ZONE_LOCKED	=> 5;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24) use constant MM_PAGE_ALLOC_EXTFRAG	=> 6;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25) use constant EVENT_UNKNOWN		=> 7;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27) # Constants used to track state
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28) use constant STATE_PCPU_PAGES_DRAINED	=> 8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29) use constant STATE_PCPU_PAGES_REFILLED	=> 9;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31) # High-level events extrapolated from tracepoints
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32) use constant HIGH_PCPU_DRAINS		=> 10;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33) use constant HIGH_PCPU_REFILLS		=> 11;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34) use constant HIGH_EXT_FRAGMENT		=> 12;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35) use constant HIGH_EXT_FRAGMENT_SEVERE	=> 13;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36) use constant HIGH_EXT_FRAGMENT_MODERATE	=> 14;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37) use constant HIGH_EXT_FRAGMENT_CHANGED	=> 15;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39) my %perprocesspid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40) my %perprocess;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41) my $opt_ignorepid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42) my $opt_read_procstat;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43) my $opt_prepend_parent;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) # Catch sigint and exit on request
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) my $sigint_report = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47) my $sigint_exit = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48) my $sigint_pending = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49) my $sigint_received = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50) sub sigint_handler {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51) 	my $current_time = time;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52) 	if ($current_time - 2 > $sigint_received) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53) 		print "SIGINT received, report pending. Hit ctrl-c again to exit\n";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54) 		$sigint_report = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55) 	} else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56) 		if (!$sigint_exit) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57) 			print "Second SIGINT received quickly, exiting\n";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59) 		$sigint_exit++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62) 	if ($sigint_exit > 3) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63) 		print "Many SIGINTs received, exiting now without report\n";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64) 		exit;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67) 	$sigint_received = $current_time;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68) 	$sigint_pending = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70) $SIG{INT} = "sigint_handler";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72) # Parse command line options
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73) GetOptions(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74) 	'ignore-pid'	 =>	\$opt_ignorepid,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75) 	'read-procstat'	 =>	\$opt_read_procstat,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76) 	'prepend-parent' =>	\$opt_prepend_parent,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77) );
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79) # Defaults for dynamically discovered regex's
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80) my $regex_fragdetails_default = 'page=([0-9a-f]*) pfn=([0-9]*) alloc_order=([-0-9]*) fallback_order=([-0-9]*) pageblock_order=([-0-9]*) alloc_migratetype=([-0-9]*) fallback_migratetype=([-0-9]*) fragmenting=([-0-9]) change_ownership=([-0-9])';
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82) # Dyanically discovered regex
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83) my $regex_fragdetails;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85) # Static regex used. Specified like this for readability and for use with /o
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86) #                      (process_pid)     (cpus      )   ( time  )   (tpoint    ) (details)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87) my $regex_traceevent = '\s*([a-zA-Z0-9-]*)\s*(\[[0-9]*\])\s*([0-9.]*):\s*([a-zA-Z_]*):\s*(.*)';
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) my $regex_statname = '[-0-9]*\s\((.*)\).*';
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89) my $regex_statppid = '[-0-9]*\s\(.*\)\s[A-Za-z]\s([0-9]*).*';
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) sub generate_traceevent_regex {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) 	my $event = shift;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) 	my $default = shift;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) 	my $regex;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) 	# Read the event format or use the default
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) 	if (!open (FORMAT, "/sys/kernel/debug/tracing/events/$event/format")) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) 		$regex = $default;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) 	} else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) 		my $line;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) 		while (!eof(FORMAT)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) 			$line = <FORMAT>;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) 			if ($line =~ /^print fmt:\s"(.*)",.*/) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) 				$regex = $1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) 				$regex =~ s/%p/\([0-9a-f]*\)/g;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) 				$regex =~ s/%d/\([-0-9]*\)/g;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) 				$regex =~ s/%lu/\([0-9]*\)/g;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) 			}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) 	# Verify fields are in the right order
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) 	my $tuple;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) 	foreach $tuple (split /\s/, $regex) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) 		my ($key, $value) = split(/=/, $tuple);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) 		my $expected = shift;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) 		if ($key ne $expected) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) 			print("WARNING: Format not as expected '$key' != '$expected'");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) 			$regex =~ s/$key=\((.*)\)/$key=$1/;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) 	if (defined shift) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) 		die("Fewer fields than expected in format");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) 	return $regex;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) $regex_fragdetails = generate_traceevent_regex("kmem/mm_page_alloc_extfrag",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) 			$regex_fragdetails_default,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) 			"page", "pfn",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) 			"alloc_order", "fallback_order", "pageblock_order",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) 			"alloc_migratetype", "fallback_migratetype",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) 			"fragmenting", "change_ownership");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) sub read_statline($) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) 	my $pid = $_[0];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) 	my $statline;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) 	if (open(STAT, "/proc/$pid/stat")) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) 		$statline = <STAT>;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) 		close(STAT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) 	if ($statline eq '') {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) 		$statline = "-1 (UNKNOWN_PROCESS_NAME) R 0";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) 	return $statline;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) sub guess_process_pid($$) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) 	my $pid = $_[0];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) 	my $statline = $_[1];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) 	if ($pid == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) 		return "swapper-0";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) 	if ($statline !~ /$regex_statname/o) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) 		die("Failed to math stat line for process name :: $statline");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) 	return "$1-$pid";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) sub parent_info($$) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) 	my $pid = $_[0];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) 	my $statline = $_[1];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) 	my $ppid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) 	if ($pid == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) 		return "NOPARENT-0";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) 	if ($statline !~ /$regex_statppid/o) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) 		die("Failed to match stat line process ppid:: $statline");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) 	# Read the ppid stat line
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) 	$ppid = $1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) 	return guess_process_pid($ppid, read_statline($ppid));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) sub process_events {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) 	my $traceevent;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) 	my $process_pid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) 	my $cpus;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) 	my $timestamp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) 	my $tracepoint;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) 	my $details;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) 	my $statline;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) 	# Read each line of the event log
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) EVENT_PROCESS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) 	while ($traceevent = <STDIN>) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) 		if ($traceevent =~ /$regex_traceevent/o) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) 			$process_pid = $1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) 			$tracepoint = $4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) 			if ($opt_read_procstat || $opt_prepend_parent) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) 				$process_pid =~ /(.*)-([0-9]*)$/;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) 				my $process = $1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) 				my $pid = $2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) 				$statline = read_statline($pid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) 				if ($opt_read_procstat && $process eq '') {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) 					$process_pid = guess_process_pid($pid, $statline);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) 				}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) 				if ($opt_prepend_parent) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) 					$process_pid = parent_info($pid, $statline) . " :: $process_pid";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) 				}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) 			}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) 			# Unnecessary in this script. Uncomment if required
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) 			# $cpus = $2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) 			# $timestamp = $3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) 		} else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) 			next;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) 		# Perl Switch() sucks majorly
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) 		if ($tracepoint eq "mm_page_alloc") {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) 			$perprocesspid{$process_pid}->{MM_PAGE_ALLOC}++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) 		} elsif ($tracepoint eq "mm_page_free") {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) 			$perprocesspid{$process_pid}->{MM_PAGE_FREE}++
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) 		} elsif ($tracepoint eq "mm_page_free_batched") {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) 			$perprocesspid{$process_pid}->{MM_PAGE_FREE_BATCHED}++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) 		} elsif ($tracepoint eq "mm_page_pcpu_drain") {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) 			$perprocesspid{$process_pid}->{MM_PAGE_PCPU_DRAIN}++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) 			$perprocesspid{$process_pid}->{STATE_PCPU_PAGES_DRAINED}++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) 		} elsif ($tracepoint eq "mm_page_alloc_zone_locked") {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) 			$perprocesspid{$process_pid}->{MM_PAGE_ALLOC_ZONE_LOCKED}++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) 			$perprocesspid{$process_pid}->{STATE_PCPU_PAGES_REFILLED}++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) 		} elsif ($tracepoint eq "mm_page_alloc_extfrag") {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) 			# Extract the details of the event now
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) 			$details = $5;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) 			my ($page, $pfn);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) 			my ($alloc_order, $fallback_order, $pageblock_order);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) 			my ($alloc_migratetype, $fallback_migratetype);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) 			my ($fragmenting, $change_ownership);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) 			if ($details !~ /$regex_fragdetails/o) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) 				print "WARNING: Failed to parse mm_page_alloc_extfrag as expected\n";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) 				next;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) 			}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) 			$perprocesspid{$process_pid}->{MM_PAGE_ALLOC_EXTFRAG}++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) 			$page = $1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) 			$pfn = $2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) 			$alloc_order = $3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) 			$fallback_order = $4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) 			$pageblock_order = $5;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) 			$alloc_migratetype = $6;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) 			$fallback_migratetype = $7;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) 			$fragmenting = $8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) 			$change_ownership = $9;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) 			if ($fragmenting) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) 				$perprocesspid{$process_pid}->{HIGH_EXT_FRAG}++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) 				if ($fallback_order <= 3) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) 					$perprocesspid{$process_pid}->{HIGH_EXT_FRAGMENT_SEVERE}++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) 				} else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) 					$perprocesspid{$process_pid}->{HIGH_EXT_FRAGMENT_MODERATE}++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) 				}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) 			}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) 			if ($change_ownership) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) 				$perprocesspid{$process_pid}->{HIGH_EXT_FRAGMENT_CHANGED}++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) 			}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) 		} else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) 			$perprocesspid{$process_pid}->{EVENT_UNKNOWN}++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) 		# Catch a full pcpu drain event
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) 		if ($perprocesspid{$process_pid}->{STATE_PCPU_PAGES_DRAINED} &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) 				$tracepoint ne "mm_page_pcpu_drain") {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) 			$perprocesspid{$process_pid}->{HIGH_PCPU_DRAINS}++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) 			$perprocesspid{$process_pid}->{STATE_PCPU_PAGES_DRAINED} = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) 		# Catch a full pcpu refill event
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) 		if ($perprocesspid{$process_pid}->{STATE_PCPU_PAGES_REFILLED} &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) 				$tracepoint ne "mm_page_alloc_zone_locked") {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) 			$perprocesspid{$process_pid}->{HIGH_PCPU_REFILLS}++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) 			$perprocesspid{$process_pid}->{STATE_PCPU_PAGES_REFILLED} = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) 		if ($sigint_pending) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) 			last EVENT_PROCESS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) sub dump_stats {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) 	my $hashref = shift;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) 	my %stats = %$hashref;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) 	# Dump per-process stats
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) 	my $process_pid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) 	my $max_strlen = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) 	# Get the maximum process name
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) 	foreach $process_pid (keys %perprocesspid) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) 		my $len = length($process_pid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) 		if ($len > $max_strlen) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) 			$max_strlen = $len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) 	$max_strlen += 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) 	printf("\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) 	printf("%-" . $max_strlen . "s %8s %10s   %8s %8s   %8s %8s %8s   %8s %8s %8s %8s %8s %8s\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) 		"Process", "Pages",  "Pages",      "Pages", "Pages", "PCPU",  "PCPU",   "PCPU",    "Fragment",  "Fragment", "MigType", "Fragment", "Fragment", "Unknown");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) 	printf("%-" . $max_strlen . "s %8s %10s   %8s %8s   %8s %8s %8s   %8s %8s %8s %8s %8s %8s\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) 		"details", "allocd", "allocd",     "freed", "freed", "pages", "drains", "refills", "Fallback", "Causing",   "Changed", "Severe", "Moderate", "");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) 	printf("%-" . $max_strlen . "s %8s %10s   %8s %8s   %8s %8s %8s   %8s %8s %8s %8s %8s %8s\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) 		"",        "",       "under lock", "direct", "pagevec", "drain", "", "", "", "", "", "", "", "");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) 	foreach $process_pid (keys %stats) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) 		# Dump final aggregates
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) 		if ($stats{$process_pid}->{STATE_PCPU_PAGES_DRAINED}) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) 			$stats{$process_pid}->{HIGH_PCPU_DRAINS}++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) 			$stats{$process_pid}->{STATE_PCPU_PAGES_DRAINED} = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) 		if ($stats{$process_pid}->{STATE_PCPU_PAGES_REFILLED}) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) 			$stats{$process_pid}->{HIGH_PCPU_REFILLS}++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) 			$stats{$process_pid}->{STATE_PCPU_PAGES_REFILLED} = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) 		printf("%-" . $max_strlen . "s %8d %10d   %8d %8d   %8d %8d %8d   %8d %8d %8d %8d %8d %8d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) 			$process_pid,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) 			$stats{$process_pid}->{MM_PAGE_ALLOC},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) 			$stats{$process_pid}->{MM_PAGE_ALLOC_ZONE_LOCKED},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) 			$stats{$process_pid}->{MM_PAGE_FREE},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) 			$stats{$process_pid}->{MM_PAGE_FREE_BATCHED},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) 			$stats{$process_pid}->{MM_PAGE_PCPU_DRAIN},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) 			$stats{$process_pid}->{HIGH_PCPU_DRAINS},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) 			$stats{$process_pid}->{HIGH_PCPU_REFILLS},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) 			$stats{$process_pid}->{MM_PAGE_ALLOC_EXTFRAG},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) 			$stats{$process_pid}->{HIGH_EXT_FRAG},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) 			$stats{$process_pid}->{HIGH_EXT_FRAGMENT_CHANGED},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) 			$stats{$process_pid}->{HIGH_EXT_FRAGMENT_SEVERE},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) 			$stats{$process_pid}->{HIGH_EXT_FRAGMENT_MODERATE},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) 			$stats{$process_pid}->{EVENT_UNKNOWN});
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) sub aggregate_perprocesspid() {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) 	my $process_pid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) 	my $process;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) 	undef %perprocess;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) 	foreach $process_pid (keys %perprocesspid) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) 		$process = $process_pid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) 		$process =~ s/-([0-9])*$//;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) 		if ($process eq '') {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) 			$process = "NO_PROCESS_NAME";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) 		$perprocess{$process}->{MM_PAGE_ALLOC} += $perprocesspid{$process_pid}->{MM_PAGE_ALLOC};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) 		$perprocess{$process}->{MM_PAGE_ALLOC_ZONE_LOCKED} += $perprocesspid{$process_pid}->{MM_PAGE_ALLOC_ZONE_LOCKED};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) 		$perprocess{$process}->{MM_PAGE_FREE} += $perprocesspid{$process_pid}->{MM_PAGE_FREE};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) 		$perprocess{$process}->{MM_PAGE_FREE_BATCHED} += $perprocesspid{$process_pid}->{MM_PAGE_FREE_BATCHED};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) 		$perprocess{$process}->{MM_PAGE_PCPU_DRAIN} += $perprocesspid{$process_pid}->{MM_PAGE_PCPU_DRAIN};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) 		$perprocess{$process}->{HIGH_PCPU_DRAINS} += $perprocesspid{$process_pid}->{HIGH_PCPU_DRAINS};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) 		$perprocess{$process}->{HIGH_PCPU_REFILLS} += $perprocesspid{$process_pid}->{HIGH_PCPU_REFILLS};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) 		$perprocess{$process}->{MM_PAGE_ALLOC_EXTFRAG} += $perprocesspid{$process_pid}->{MM_PAGE_ALLOC_EXTFRAG};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) 		$perprocess{$process}->{HIGH_EXT_FRAG} += $perprocesspid{$process_pid}->{HIGH_EXT_FRAG};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) 		$perprocess{$process}->{HIGH_EXT_FRAGMENT_CHANGED} += $perprocesspid{$process_pid}->{HIGH_EXT_FRAGMENT_CHANGED};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) 		$perprocess{$process}->{HIGH_EXT_FRAGMENT_SEVERE} += $perprocesspid{$process_pid}->{HIGH_EXT_FRAGMENT_SEVERE};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) 		$perprocess{$process}->{HIGH_EXT_FRAGMENT_MODERATE} += $perprocesspid{$process_pid}->{HIGH_EXT_FRAGMENT_MODERATE};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) 		$perprocess{$process}->{EVENT_UNKNOWN} += $perprocesspid{$process_pid}->{EVENT_UNKNOWN};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) sub report() {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) 	if (!$opt_ignorepid) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) 		dump_stats(\%perprocesspid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) 	} else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) 		aggregate_perprocesspid();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) 		dump_stats(\%perprocess);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) # Process events or signals until neither is available
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) sub signal_loop() {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) 	my $sigint_processed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) 	do {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) 		$sigint_processed = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) 		process_events();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) 		# Handle pending signals if any
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) 		if ($sigint_pending) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) 			my $current_time = time;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) 			if ($sigint_exit) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) 				print "Received exit signal\n";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) 				$sigint_pending = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) 			}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) 			if ($sigint_report) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) 				if ($current_time >= $sigint_received + 2) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) 					report();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) 					$sigint_report = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) 					$sigint_pending = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) 					$sigint_processed = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) 				}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) 			}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) 	} while ($sigint_pending || $sigint_processed);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) signal_loop();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) report();