mirror of
https://github.com/nodejs/node.git
synced 2024-11-30 07:27:22 +01:00
117 lines
2.8 KiB
Bash
117 lines
2.8 KiB
Bash
#!/bin/bash
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cd "$(dirname "$(dirname $0)")"
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node=${NODE:-./node}
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name=${NAME:-stacks}
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if type sysctl &>/dev/null; then
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# darwin and linux
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sudo sysctl -w net.inet.ip.portrange.first=12000
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sudo sysctl -w net.inet.tcp.msl=1000
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sudo sysctl -w kern.maxfiles=1000000 kern.maxfilesperproc=1000000
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elif type /usr/sbin/ndd &>/dev/null; then
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# sunos
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/usr/sbin/ndd -set /dev/tcp tcp_smallest_anon_port 12000
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/usr/sbin/ndd -set /dev/tcp tcp_largest_anon_port 65535
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/usr/sbin/ndd -set /dev/tcp tcp_max_buf 2097152
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/usr/sbin/ndd -set /dev/tcp tcp_xmit_hiwat 1048576
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/usr/sbin/ndd -set /dev/tcp tcp_recv_hiwat 1048576
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fi
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ulimit -n 100000
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$node benchmark/http_simple.js &
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nodepid=$!
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echo "node pid = $nodepid"
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sleep 1
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# has to stay alive until dtrace exits
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dtrace -n 'profile-97/pid == '$nodepid' && arg1/{ @[jstack(150, 8000)] = count(); } tick-60s { exit(0); }' \
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| grep -v _ZN2v88internalL21Builtin_HandleApiCallENS0_12_GLOBAL__N_116BuiltinA \
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> "$name".src &
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dtracepid=$!
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echo "dtrace pid = $dtracepid"
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sleep 1
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test () {
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c=$1
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t=$2
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l=$3
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k=$4
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ab $k -t 10 -c $c http://127.0.0.1:8000/$t/$l \
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2>&1 | grep Req
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}
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#test 100 bytes 1024
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#test 10 bytes 100 -k
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#test 100 bytes 1024 -k
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#test 100 bytes 1024 -k
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#test 100 bytes 1024 -k
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echo 'Keep going until dtrace stops listening...'
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while pargs $dtracepid &>/dev/null; do
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test 100 bytes ${LENGTH:-1} -k
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done
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kill $nodepid
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echo 'Turn the stacks into a svg'
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stackvis dtrace flamegraph-svg < "$name".src > "$name".raw.svg
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echo 'Prune tiny stacks out of the graph'
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node -e '
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var infile = process.argv[1];
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var outfile = process.argv[2];
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var output = "";
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var fs = require("fs");
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var input = fs.readFileSync(infile, "utf8");
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input = input.split("id=\"details\" > </text>");
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var head = input.shift() + "id=\"details\" > </text>";
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input = input.join("id=\"details\" > </text>");
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var tail = "</svg>";
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input = input.split("</svg>")[0];
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var minyKept = Infinity;
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var minyOverall = Infinity;
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var rects = input.trim().split(/\n/).filter(function(rect) {
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var my = rect.match(/y="([0-9\.]+)"/);
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if (!my)
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return false;
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var y = +my[1];
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if (!y)
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return false;
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minyOverall = Math.min(minyOverall, y);
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// pluck off everything that will be less than one pixel.
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var mw = rect.match(/width="([0-9\.]+)"/)
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if (mw) {
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var width = +mw[1];
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if (!(width >= 1))
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return false;
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}
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minyKept = Math.min(minyKept, y);
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return true;
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});
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// move everything up to the top of the page.
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var ydiff = minyKept - minyOverall;
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rects = rects.map(function(rect) {
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var my = rect.match(/y="([0-9\.]+)"/);
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var y = +my[1];
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var newy = y - ydiff;
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rect = rect.replace(/y="([0-9\.]+)"/, "y=\"" + newy + "\"");
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return rect;
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});
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fs.writeFileSync(outfile, head + "\n" + rects.join("\n") + "\n" + tail);
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' "$name".raw.svg "$name".svg
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echo ''
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echo 'done. Results in '"$name"'.svg'
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