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