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[/] [trunk/] [modules/] [system/] [platform/] [freebsd.pm] - Blame information for rev 6

 

Line No. Rev Author Line
11simandlpackage HotSaNICmod::OSdep;
2 
3use RRDs;
4 
5# return module version
6#
7sub version {
8 ($VERSION = '$Revision: 1.8 $') =~ s/.*(\d+\.\d+).*/$1/;
9 return "$^O.pm $VERSION";
10}
11 
12# sample data
13#
14sub sample {
15 my %args=@_;
16 
17 @sections = split " ", ($args{SECTIONS});
18 foreach (@sections){
19 if ($_ eq "cpu") {read_cpu(%args)}
20 if ($_ eq "load") {read_load(%args)}
21 if ($_ eq "proc") {read_proc(%args)}
22 if ($_ eq "mem") {read_mem(%args)}
23 if ($_ eq "users") {read_users(%args)}
24 }
25}
26 
27 
28# users.rrd -> tty pty pts
29# cpu.rrd -> cpuusr cpunic cpusys cpuint cpuidl
30# load.rrd -> load15 load5 load1
31# proc.rrd -> procslp procrun proczmb procstp
32# mem.rrd (Linux) -> memfre memshr membuf memcac swpfre swpuse
33 
34 
35#####################################################################################
36# build CPU statistics
37#
38# We get info from the kern.cp_time sysctl. works on 4.6-4.7-STABLE and
39# should work at least on single-cpu 5.0 boxes too. Values for SMP systems
40# are cumulative until I (or anyone else) can get per-cpu info out of
41# the kernel. Gkrellm can't even do that!!! :(
42#
43# sysctl order is: user nice sys intr idle
44 
45sub read_cpu {
46 my %args=@_;
47 
48 $rawcpu=`sysctl kern.cp_time`;
49 chomp $rawcpu; # don't get why this is needed...
50 (undef, $cpu1, $cpu2, $cpu3, $cpu4, $cpu5)=split(/ /,$rawcpu );
51 
52 $cpu1old=0; $cpu2old=0; $cpu3old=0; $cpu4old=0; $cpu5old=0;
53 
54 if ( -e "cpu.dat" ) {
55 open(CPU,"cpu.dat");
56 while (<CPU>) {
57 ($cpu1old, $cpu2old, $cpu3old, $cpu4old, $cpu5old)=split / /;
58 }
59 close(CPU);
60 }
61 
62 open(CPU,">cpu.dat");
63 print CPU $cpu1." ".$cpu2." ".$cpu3." ".$cpu4." ".$cpu5."\n";
64 close(CPU);
65 
66 # deltas
67 $all=($cpu1+$cpu2+$cpu3+$cpu4+$cpu5)-($cpu1old+$cpu2old+$cpu3old+$cpu4old+$cpu5old);
68 $cpuusr=($cpu1-$cpu1old)/$all;
69 $cpunic=($cpu2-$cpu2old)/$all;
70 $cpusys=($cpu3-$cpu3old)/$all;
71 $cpuint=($cpu4-$cpu4old)/$all;
72 $cpuidl=($cpu5-$cpu5old)/$all;
73 
74 if ( ! -e "rrd/cpu.rrd" ) { system("./makerrd","cpu"); }
75 RRDs::update "rrd/cpu.rrd", time.":".$cpuusr.":".$cpunic.":".$cpusys.":".$cpuidl.":".$cpuint;
76 if ($ERROR = RRDs::error) { print time," ",$args{MODNAME},": unable to update cpu.rrd: $ERROR\n"; }
77 
78}
79 
80 
81 
82#####################################################################################
83# here we go with the load-average value ...
84#
85sub read_load {
86 my %args=@_;
87 (undef,undef,$load1,$load5,$load15,undef)=split(/ /,`/sbin/sysctl vm.loadavg`);
88 
89 if ( ! -e "rrd/load.rrd" ) { system("./makerrd","load") }
90 RRDs::update "rrd/load.rrd", time.":".$load15.":".$load5.":".$load1;
91 if ($ERROR = RRDs::error) { print time," ",$args{MODNAME},": unable to update load.rrd: $ERROR\n"; }
92}
93 
94 
95 
96#####################################################################################
97# now the processes. We have to check how many processes are sleeping,
98# running, zombieng spwapped to disc or stopped. To do this we simply
99# have to walk through the /proc tree, check all "stat" files of each
100# process-id subdir and increment the according state-counter.
101#
102sub read_proc {
103 my %args=@_;
104 ($procslp,$procrun,$proczmb,$procstp,$procdsc)=(0,0,0,0,0);
105 
106 @states=`/bin/ps axostate`;
107 foreach (@states) {
108 $procslp++ if (/^[SI]/); #Sleeping (S=<20s, I=>20s)
109 $procdsc++ if (/^D/); #Disk wait
110 $procrun++ if (/^R/); #Running
111 $proczmb++ if (/^Z/); #Zombie
112 $procstp++ if (/^T/); #Stopped
113 }
114 
115 if ( ! -e "rrd/proc.rrd" ) { system("./makerrd","proc") }
116 RRDs::update "rrd/proc.rrd", time.":".$procslp.":".$procrun.":".$proczmb.":".$procstp.":".$procdsc;
117 if ($ERROR = RRDs::error) { print time," ",$args{MODNAME},": nable to update proc.rrd: $ERROR\n"; }
118}
119 
120 
121#####################################################################################
122# read users stats
123#
124sub read_users {
125 my %args=@_;
126 
127 # XXX im not shure if this will work. PR
128 @users=`who`;
129 ($tty,$pty,$pts)=(0,0,0);
130 foreach (@users) {
131 # print $_;
132 if (index($_," ttyv") >=0 ) { $tty++; }
133 elsif (index($_," ttyp") >=0 ) { $pty++; }
134 elsif (index($_," pts") >=0 ) { $pts++; }
135 }
136 
137 if ( ! -e "rrd/users.rrd" ) { system("./makerrd","users") }
138 RRDs::update "rrd/users.rrd", time.":".$tty.":".$pty.":".$pts;
139 if ($ERROR = RRDs::error) { print time," ",$args{MODNAME},": nable to update users.rrd: $ERROR\n"; }
140}
141 
142 
143####################################################################################
144# here we go with the memory and swap statistics...
145#
146sub read_mem {
147 my %args=@_;
148 
149 # FreeBSD sucks for this...
150 (undef, $pagesize) = split(/ /, `sysctl vm.stats.vm.v_page_size`);
151 (undef, $memtotl) = split(/ /, `sysctl vm.stats.vm.v_page_count`); $memtotl *= $pagesize;
152 (undef, $memfree) = split(/ /, `sysctl vm.stats.vm.v_free_count`); $memfree *= $pagesize;
153 (undef, $memwire) = split(/ /, `sysctl vm.stats.vm.v_wire_count`); $memwire *= $pagesize;
154 (undef, $memactv) = split(/ /, `sysctl vm.stats.vm.v_active_count`); $memactv *= $pagesize;
155 (undef, $meminac) = split(/ /, `sysctl vm.stats.vm.v_inactive_count`);$meminac *= $pagesize;
156 (undef, $memcach) = split(/ /, `sysctl vm.stats.vm.v_cache_count`); $memcach *= $pagesize;
157 
158 #get swap.
159 #may be dodgy on systems with multiple swap partitions. however the
160 #total should be printed on the last line, overwriting the vars
161 open(IN,"/usr/sbin/pstat -sk|");
162 while(<IN>) {
163 (undef, undef, $swpuse, $swpfre) = split;
164 }
165 
166 $swpuse*=1024;
167 $swpfre*=1024;
168 
169 if ( ! -e "rrd/mem.rrd" ) { system("./makerrd","mem") }
170 RRDs::update "rrd/mem.rrd", time.":".$memfree.":".$memwire.":".$memactv.":".$meminac.":".$memcach.":".$swpfre.":".$swpuse;
171 if ($ERROR = RRDs::error) { print time," ",$args{MODNAME},": nable to update `mem.rrd': $ERROR\n"; }
172 }
173 
1741;

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