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authorTimo Teras <timo.teras@iki.fi>2009-02-26 10:55:43 +0200
committerTimo Teras <timo.teras@iki.fi>2009-02-26 10:55:43 +0200
commit52864ab4822b3d5ea5141d5c46edea6403438693 (patch)
tree23c3153dca3cd3f733271c57ae65d79beb04adf7 /bootchartd
parente93ecc6535fe1c99d93dfedf3f97af47f0f88887 (diff)
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initramfs: bootchart support
include a modified version of bootchartd, and modify the initramfs to take start recording of boot sequence to /var/log/bootchart.tgz if "chart" option is specified in boot command line.
Diffstat (limited to 'bootchartd')
-rwxr-xr-xbootchartd192
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