Created
December 9, 2014 13:24
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#!/bin/bash | |
# Usage: ./gen.sh collected-stacks.txt | |
TMPSTACKS=/tmp/flamegraph-stacks-collapsed.txt | |
TMPPALETTE=/tmp/flamegraph-palette.map | |
./stackcollapse-jstack.pl $1 > $TMPSTACKS | |
# 1st run - hot: default | |
./flamegraph.pl --cp $TMPSTACKS > stacks.svg | |
# 2nd run - blue: I/O | |
cp palette.map $TMPPALETTE | |
cat $TMPPALETTE | grep -v '\.read' | grep -v '\.write' | grep -v 'socketRead' | grep -v 'socketWrite' | grep -v 'socketAccept' > palette.map | |
./flamegraph.pl --cp --colors=io $TMPSTACKS > stacks.svg | |
echo "Done! Now see the output in stacks.svg" |
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#!/bin/sh | |
# Usage: ./profile.sh pid output.txt | |
PROFILED_PID=$1 | |
OUTPUT_FILE=$2 | |
echo "Getting stacktraces from process $PROFILED_PID... Will stop on ^C or when the process exits." | |
rm -f "$OUTPUT_FILE" | |
while true; do | |
jstack "$PROFILED_PID" >> "$OUTPUT_FILE" && sleep 0.01 || break | |
done | |
echo | |
echo "Done! Stacks saved to $OUTPUT_FILE" |
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