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#!/bin/bash
usage()
{
printf "Usage: $0 [opt] [val]\n\n"
printf " -c cpuid Collect data of the specified cpu id\n"
printf " -t threadid Collect data of the specified thread id\n"
printf " -p processid Collect data of the specified process id\n"
printf " -h Help\e[0m\n\n"
exit 0
}
if [ ! -n "$1" ] || [ ! -n "$2" ]; then
usage
fi
opt_type="h"
while getopts c:t:p:h opt
do
case $opt in
c) opt_type="c" ;;
t) opt_type="t" ;;
p) opt_type="p" ;;
h|?) usage ;;
esac
done
# 执行后在当前目录下会生成采样数据 perf.data
rm -rf perf.data
if [ $opt_type == "c" ]; then
printf "\e[32m Collect data on cpu $2\e[0m\n"
perf record -e cpu-clock --call-graph dwarf -C $2 -- sleep 5
elif [ $opt_type == "t" ]; then
printf "\e[32m Collect data on thread $2\e[0m\n"
perf record -e cpu-clock --call-graph dwarf -t $2 -- sleep 5
elif [ $opt_type == "p" ]; then
printf "\e[32m Collect data on process $2\e[0m\n"
perf record -e cpu-clock --call-graph dwarf -p $2 -- sleep 5
else
usage
fi
if [ ! -f "perf.data" ]; then
echo "Please Collect data !"
exit 0
fi
if [ ! -d FlameGraph ]; then
echo "git clone https://github.com/brendangregg/FlameGraph.git"
git clone https://github.com/brendangregg/FlameGraph.git
fi
rm -rf perf.unfold
rm -rf perf.folded
rm -rf perf.svg
printf "\e[32m Convert data to flame graph\e[0m\n"
perf script | ./FlameGraph/stackcollapse-perf.pl | ./FlameGraph/flamegraph.pl >perf.svg
# 使用浏览器查看 perf.svg, 在浏览器中使用 Ctrl + F 进行关键字搜索
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