4 # Copyright (c) 2008 Peter Holm <pho@FreeBSD.org>
7 # Redistribution and use in source and binary forms, with or without
8 # modification, are permitted provided that the following conditions
10 # 1. Redistributions of source code must retain the above copyright
11 # notice, this list of conditions and the following disclaimer.
12 # 2. Redistributions in binary form must reproduce the above copyright
13 # notice, this list of conditions and the following disclaimer in the
14 # documentation and/or other materials provided with the distribution.
16 # THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 # ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 # FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 # OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 # HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 # OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 # Script to catch possible leaks in vm, malloc and mbufs
32 # Report values growing in 10 consecuitive samples
36 # Check for leaks in vm.zone
38 # ITEM SIZE LIMIT USED FREE REQUESTS
40 # UMA Kegs: 140, 0, 66, 6, 66
41 # UMA Zones: 120, 0, 66, 24, 66
44 vmstat -z | sed '1,3d;s/://g' | \
45 sed 's/ */ /g;s/\([0-9]\) *\([0-9]\)/\1,\2/g;s/ \([0-9]\)/,\1/;s/^ *//' | \
50 printf "vmstat -z %s,%s\n", $1, size;
55 # Type InUse MemUse HighUse Requests Size(s)
56 # DEVFS3 168 21K - 169 128
57 # DEVFS1 157 40K - 157 256
58 # DEVFS 12 1K - 13 16,128
60 sed '1,1d;s/K .*//;s/ [0-9][0-9]* //;s/ */ /g;s/^ *//;s/ /_/g;s/_\([0-9][0-9]*$\)/ \1/' | \
61 awk '{printf "vmstat -m %s, %d\n", $1, $2}'
63 # Check for leaks in mbufs
66 # 1233/597/1830 mbufs in use (current/cache/total)
67 # 1232/196/1428/8896 mbuf clusters in use (current/cache/total/max)
68 # 1232/74 mbuf+clusters out of packet secondary zone in use (current/cache)
69 # 0/0/0/0 4k (page size) jumbo clusters in use (current/cache/total/max)
70 # 0/0/0/0 9k jumbo clusters in use (current/cache/total/max)
71 # 0/0/0/0 16k jumbo clusters in use (current/cache/total/max)
72 # 2772K/541K/3313K bytes allocated to network (current/cache/total)
73 # 508/7778/5734 requests for mbufs denied (mbufs/clusters/mbuf+clusters)
74 # 0/0/0 requests for jumbo clusters denied (4k/9k/16k)
75 # 0/6/2480 sfbufs in use (current/peak/max)
76 # 0 requests for sfbufs denied
77 # 0 requests for sfbufs delayed
78 # 0 requests for I/O initiated by sendfile
79 # 251 calls to protocol drain routines
82 netstat -m | head -10 | sed 's#/# #g;s/k / /;s/K / /' | awk '
84 / clusters/ {clusters=$2};
85 /sfbufs in use/ {sfbufs=$3};
86 /allocated/ {allocated=$1}
88 print "mbufs,", mbufs;
89 print "clusters,", clusters;
90 print "sfbufs,", sfbufs;
91 print "allocatedToNetwork,", allocated;
94 sysctl vm.kvm_free | tail -1 | sed 's/:/,/'
98 # Pairs of "name, value" are passed to this awk script
101 # print "name, size :", name, size;
103 print "Number of fields for ", name, "is ", NF;
104 if (size > s[name]) {
110 printf "%s \"%s\" may be leaking, size %d\n", t, name, size;