diff options
Diffstat (limited to 'bootchartd')
| -rwxr-xr-x | bootchartd | 192 |
1 files changed, 192 insertions, 0 deletions
diff --git a/bootchartd b/bootchartd new file mode 100755 index 0000000..0b0db4e --- /dev/null +++ b/bootchartd @@ -0,0 +1,192 @@ +#!/bin/sh +# +# Bootchart logger script +# Ziga Mahkovec <ziga.mahkovec@klika.si> +# +# Modified heavily for Alpine Linux bootcharting +# Timo Teras <timo.teras@iki.fi> +# +# This script is used for data collection for the bootchart +# boot performance visualization tool (http://www.bootchart.org). +# +# This script is tied to Alpine Init scripts and charts the +# bootup procedure only. +# + +PATH="/sbin:/bin:/usr/sbin:/usr/bin:$PATH" + +# Configuration for bootchartd, the bootchart logger script. +TMPFS_SIZE=32m +SAMPLE_PERIOD=0.1 +PROCESS_ACCOUNTING="no" +BOOTLOG_DEST=/var/log/bootchart.tgz +LOGDIR=/bootchart +EXIT_PROC="mingetty agetty rungetty getty fgetty" + +# Monitoring commands +log_cmd_1="cat /proc/stat" +log_target_1=proc_stat.log + +# /proc/diskstats is available in 2.6 kernels +log_cmd_2="cat /proc/diskstats" +log_target_2=proc_diskstats.log + +log_cmd_3="cat /proc/[1-9]*/stat 2>/dev/null" +log_target_3=proc_ps.log + +# Uncomment this line for diskless stations +#log_cmd_4="cat /proc/net/dev" +#log_target_4=proc_netdev.log + +max_log=3 + +do_logging() +{ + # Enable process accounting if configured + if [ "$PROCESS_ACCOUNTING" = "yes" ]; then + [ -e kernel_pacct ] || : > kernel_pacct + accton kernel_pacct + fi + + # open file descriptors + i=1 + while [ $i -le $max_log ]; do + eval target=\"\$log_target_$i\" + if [ -z "$target" ]; then + max_log=$i + break + fi + + fd=$((2 + $i)) + eval exec $fd'>>$target' + eval log_fd_$i=$fd + i=$(($i + 1)) + done + + not_stop_logging=true + while $not_stop_logging && \ + { ! pidof $EXIT_PROC >/dev/null; }; do + if [ -r /proc/uptime ]; then + # Write the time (in jiffies). + read uptime < /proc/uptime + uptime=${uptime%% [0-9]*} + uptime=${uptime%.*}${uptime#*.} + + i=1 + while [ $i -le $max_log ]; do + eval fd=\$log_fd_$i\; cmd=\$log_cmd_$i + + { + echo $uptime + # Log the command output + eval $cmd + echo + } >&$fd + i=$(($i + 1)) + done + fi + + sleep $SAMPLE_PERIOD + done + + # close file descriptors + i=1 + while [ $i -le $max_log ]; do + eval fd=\$log_fd_$i + eval exec $fd'>&-' + i=$(($i + 1)) + done + + [ -e kernel_pacct ] && accton off +} + +# Stop the boot logger. The lock file is removed to force the loggers in +# background to exit. Some final log files are created and then all log files +# from the tmpfs are packaged and stored in $BOOTLOG_DEST. +finalize() +{ + # Stop process accounting if configured + local pacct= + [ -e kernel_pacct ] && pacct=kernel_pacct + + # Write system information + # Log some basic information about the system. + ( + echo "version = $VERSION" + echo "title = Boot chart for $( hostname | sed q ) ($( date ))" + echo "system.uname = $( uname -srvm | sed q )" + if [ -f /etc/alpine-release ]; then + echo "system.release = $( sed q /etc/alpine-release )" + elif [ -f /etc/gentoo-release ]; then + echo "system.release = $( sed q /etc/gentoo-release )" + elif [ -f /etc/SuSE-release ]; then + echo "system.release = $( sed q /etc/SuSE-release )" + elif [ -f /etc/debian_version ]; then + echo "system.release = Debian GNU/$( uname -s ) $( cat /etc/debian_version )" + elif [ -f /etc/frugalware-release ]; then + echo "system.release = $( sed q /etc/frugalware-release )" + elif [ -f /etc/pardus-release ]; then + echo "system.release = $( sed q /etc/pardus-release )" + else + echo "system.release = $( sed 's/\\.//g;q' /etc/issue )" + fi + + # Get CPU count + local cpucount=$(grep -c '^processor' /proc/cpuinfo) + if [ $cpucount -gt 1 -a -n "$(grep 'sibling.*2' /proc/cpuinfo)" ]; then + # Hyper-Threading enabled + cpucount=$(( $cpucount / 2 )) + fi + if grep -q '^model name' /proc/cpuinfo; then + echo "system.cpu = $( grep '^model name' /proc/cpuinfo | sed q )"\ + "($cpucount)" + else + echo "system.cpu = $( grep '^cpu' /proc/cpuinfo | sed q )"\ + "($cpucount)" + fi + + echo "system.kernel.options = $( sed q /proc/cmdline )" + ) >> header + + # Package log files + tar -zcf "$BOOTLOG_DEST" header $pacct *.log + rm "$LOGDIR"/* + rmdir "$LOGDIR" +} + +case "$1" in +init) + # Started by the kernel or by the init script. + NEWROOT="$2" + mkdir "$LOGDIR" + cd "$LOGDIR" + + ( + trap "not_stop_logging=false" USR1 + reexec=false + trap "reexec=true; not_stop_logging=false" USR2 + + do_logging + if $reexec; then + mkdir "$NEWROOT$LOGDIR" + mv * "$NEWROOT$LOGDIR" + cp /sbin/bootchartd $NEWROOT/sbin + exec chroot $NEWROOT /sbin/bootchartd continue_logging \ + "$LOGDIR" </newroot/dev/null \ + >$NEWROOT/dev/console 2>&1 + else + sleep $SAMPLE_PERIOD + sleep $SAMPLE_PERIOD + finalize + fi + ) & + ;; +continue_logging) + cd "$2" + trap "not_stop_logging=false" USR1 + do_logging + finalize + ;; +esac + +exit 0 |