#!/bin/sh

if [ $# -lt 2 ]; then
    echo './fg.sh pid times(秒)'
    exit 1
fi

rm -f perf.*
perf record -F 99 -p $1 -g -- sleep $2
perf script -i perf.data &> perf.unfold
./stackcollapse-perf.pl perf.unfold &> perf.folded
./flamegraph.pl perf.folded > perf.svg