projects/aports·blob v3.4.0_rc5 · refs

198 lines · 4.5 KiB

1#!/bin/sh
2#
3# Bootchart logger script
4# Ziga Mahkovec <[email protected]>
5#
6# Modified heavily for Alpine Linux bootcharting
7# Timo Teras <[email protected]>
8#
9# This script is used for data collection for the bootchart
10# boot performance visualization tool (http://www.bootchart.org).
11#
12# This script is tied to Alpine Init scripts and charts the
13# bootup procedure only.
14#
15
16PATH="/sbin:/bin:/usr/sbin:/usr/bin:$PATH"
17
18# Configuration for bootchartd, the bootchart logger script.
19TMPFS_SIZE=32m
20SAMPLE_PERIOD=0.2
21PROCESS_ACCOUNTING="yes"
22BOOTLOG_DEST=/var/log/bootchart.tgz
23LOGDIR=/bootchart
24EXIT_PROC="mingetty agetty rungetty getty fgetty"
25
26# Monitoring commands
27log_cmd_1="cat /proc/stat"
28log_target_1=proc_stat.log
29
30# /proc/diskstats is available in 2.6 kernels
31log_cmd_2="cat /proc/diskstats"
32log_target_2=proc_diskstats.log
33
34log_cmd_3="cat /proc/[1-9]*/stat 2>/dev/null"
35log_target_3=proc_ps.log
36
37# Uncomment this line for diskless stations
38#log_cmd_4="cat /proc/net/dev"
39#log_target_4=proc_netdev.log
40
41max_log=3
42
43do_logging()
44{
45 # Enable process accounting if configured
46 if [ "$PROCESS_ACCOUNTING" = "yes" ]; then
47 [ -e kernel_pacct ] || : > kernel_pacct
48 accton kernel_pacct
49 fi
50
51 # open file descriptors
52 i=1
53 while [ $i -le $max_log ]; do
54 eval target=\"\$log_target_$i\"
55 if [ -z "$target" ]; then
56 max_log=$i
57 break
58 fi
59
60 fd=$((2 + $i))
61 eval exec $fd'>>$target'
62 eval log_fd_$i=$fd
63 i=$(($i + 1))
64 done
65
66 not_stop_logging=true
67 while $not_stop_logging && \
68 { ! pidof $EXIT_PROC >/dev/null; }; do
69 if [ -r /proc/uptime ]; then
70 # Write the time (in jiffies).
71 read uptime < /proc/uptime
72 uptime=${uptime%% [0-9]*}
73 uptime=${uptime%.*}${uptime#*.}
74
75 i=1
76 while [ $i -le $max_log ]; do
77 eval fd=\$log_fd_$i\; cmd=\$log_cmd_$i
78
79 {
80 echo $uptime
81 # Log the command output
82 eval $cmd
83 echo
84 } >&$fd
85 i=$(($i + 1))
86 done
87 fi
88
89 sleep $SAMPLE_PERIOD
90 done
91
92 # close file descriptors
93 i=1
94 while [ $i -le $max_log ]; do
95 eval fd=\$log_fd_$i
96 eval exec $fd'>&-'
97 i=$(($i + 1))
98 done
99
100 [ -e kernel_pacct ] && accton
101}
102
103# Stop the boot logger. The lock file is removed to force the loggers in
104# background to exit. Some final log files are created and then all log files
105# from the tmpfs are packaged and stored in $BOOTLOG_DEST.
106finalize()
107{
108 # Stop process accounting if configured
109 local pacct=
110 [ -e kernel_pacct ] && pacct=kernel_pacct
111
112 # Write system information
113 # Log some basic information about the system.
114 (
115 echo "version = $VERSION"
116 echo "title = Boot chart for $( hostname | sed q ) ($( date ))"
117 echo "system.uname = $( uname -srvm | sed q )"
118 if [ -f /etc/alpine-release ]; then
119 echo "system.release = $( sed q /etc/alpine-release )"
120 elif [ -f /etc/gentoo-release ]; then
121 echo "system.release = $( sed q /etc/gentoo-release )"
122 elif [ -f /etc/SuSE-release ]; then
123 echo "system.release = $( sed q /etc/SuSE-release )"
124 elif [ -f /etc/debian_version ]; then
125 echo "system.release = Debian GNU/$( uname -s ) $( cat /etc/debian_version )"
126 elif [ -f /etc/frugalware-release ]; then
127 echo "system.release = $( sed q /etc/frugalware-release )"
128 elif [ -f /etc/pardus-release ]; then
129 echo "system.release = $( sed q /etc/pardus-release )"
130 else
131 echo "system.release = $( sed 's/\\.//g;q' /etc/issue )"
132 fi
133
134 # Get CPU count
135 local cpucount=$(grep -c '^processor' /proc/cpuinfo)
136 if [ $cpucount -gt 1 -a -n "$(grep 'sibling.*2' /proc/cpuinfo)" ]; then
137 # Hyper-Threading enabled
138 cpucount=$(( $cpucount / 2 ))
139 fi
140 if grep -q '^model name' /proc/cpuinfo; then
141 echo "system.cpu = $( grep '^model name' /proc/cpuinfo | sed q )"\
142 "($cpucount)"
143 else
144 echo "system.cpu = $( grep '^cpu' /proc/cpuinfo | sed q )"\
145 "($cpucount)"
146 fi
147
148 echo "system.kernel.options = $( sed q /proc/cmdline )"
149 ) >> header
150
151 # Package log files
152 tar -zcf "$BOOTLOG_DEST" header $pacct *.log
153 rm "$LOGDIR"/*
154 rmdir "$LOGDIR"
155}
156
157case "$1" in
158start-initfs)
159 NEWROOT="$2"
160 (
161 cleanup=true
162 trap "not_stop_logging=false" USR1
163 trap "cleanup=false; not_stop_logging=false" USR2
164
165 mkdir "$LOGDIR"
166 cd "$LOGDIR"
167 do_logging
168 if $cleanup; then
169 sleep $SAMPLE_PERIOD
170 finalize
171 fi
172 ) &
173 echo $! > $LOGDIR/bootchart.pid
174 ;;
175stop-initfs)
176 NEWROOT="$2"
177
178 cd "$LOGDIR"
179 mkdir "$NEWROOT$LOGDIR"
180 cp /sbin/bootchartd $NEWROOT/sbin
181 PID=$(cat bootchart.pid)
182 kill -USR2 $PID
183 wait $PID
184 mv * "$NEWROOT$LOGDIR"
185 ;;
186start-rootfs)
187 (
188 trap "not_stop_logging=false" USR1
189 cd "$LOGDIR"
190 do_logging
191 finalize
192 ) &
193 shift
194 exec "$@"
195 ;;
196esac
197
198exit 0