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README.md000066600000003757151762172210006047 0ustar00# node-uuid Benchmarks

### Results

To see the results of our benchmarks visit https://github.com/broofa/node-uuid/wiki/Benchmark

### Run them yourself

node-uuid comes with some benchmarks to measure performance of generating UUIDs. These can be run using node.js. node-uuid is being benchmarked against some other uuid modules, that are available through npm namely `uuid` and `uuid-js`.

To prepare and run the benchmark issue;

```
npm install uuid uuid-js
node benchmark/benchmark.js
```

You'll see an output like this one:

```
# v4
nodeuuid.v4(): 854700 uuids/second
nodeuuid.v4('binary'): 788643 uuids/second
nodeuuid.v4('binary', buffer): 1336898 uuids/second
uuid(): 479386 uuids/second
uuid('binary'): 582072 uuids/second
uuidjs.create(4): 312304 uuids/second

# v1
nodeuuid.v1(): 938086 uuids/second
nodeuuid.v1('binary'): 683060 uuids/second
nodeuuid.v1('binary', buffer): 1644736 uuids/second
uuidjs.create(1): 190621 uuids/second
```

* The `uuid()` entries are for Nikhil Marathe's [uuid module](https://bitbucket.org/nikhilm/uuidjs) which is a wrapper around the native libuuid library.
* The `uuidjs()` entries are for Patrick Negri's [uuid-js module](https://github.com/pnegri/uuid-js) which is a pure javascript implementation based on [UUID.js](https://github.com/LiosK/UUID.js) by LiosK.

If you want to get more reliable results you can run the benchmark multiple times and write the output into a log file:

```
for i in {0..9}; do node benchmark/benchmark.js >> benchmark/bench_0.4.12.log; done;
```

If you're interested in how performance varies between different node versions, you can issue the above command multiple times.

You can then use the shell script `bench.sh` provided in this directory to calculate the averages over all benchmark runs and draw a nice plot:

```
(cd benchmark/ && ./bench.sh)
```

This assumes you have [gnuplot](http://www.gnuplot.info/) and [ImageMagick](http://www.imagemagick.org/) installed. You'll find a nice `bench.png` graph in the `benchmark/` directory then.
benchmark.js000066600000004275151762172210007054 0ustar00try {
  var nodeuuid = require('../uuid');
} catch (e) {
  console.error('node-uuid require failed - skipping tests');
}

try {
  var uuid = require('uuid');
} catch (e) {
  console.error('uuid require failed - skipping tests');
}

try {
  var uuidjs = require('uuid-js');
} catch (e) {
  console.error('uuid-js require failed - skipping tests');
}

var N = 5e5;

function rate(msg, t) {
  console.log(msg + ': ' +
    (N / (Date.now() - t) * 1e3 | 0) +
    ' uuids/second');
}

console.log('# v4');

// node-uuid - string form
if (nodeuuid) {
  for (var i = 0, t = Date.now(); i < N; i++) nodeuuid.v4();
  rate('nodeuuid.v4() - using node.js crypto RNG', t);

  for (var i = 0, t = Date.now(); i < N; i++) nodeuuid.v4({rng: nodeuuid.mathRNG});
  rate('nodeuuid.v4() - using Math.random() RNG', t);

  for (var i = 0, t = Date.now(); i < N; i++) nodeuuid.v4('binary');
  rate('nodeuuid.v4(\'binary\')', t);

  var buffer = new nodeuuid.BufferClass(16);
  for (var i = 0, t = Date.now(); i < N; i++) nodeuuid.v4('binary', buffer);
  rate('nodeuuid.v4(\'binary\', buffer)', t);
}

// libuuid - string form
if (uuid) {
  for (var i = 0, t = Date.now(); i < N; i++) uuid();
  rate('uuid()', t);

  for (var i = 0, t = Date.now(); i < N; i++) uuid('binary');
  rate('uuid(\'binary\')', t);
}

// uuid-js - string form
if (uuidjs) {
  for (var i = 0, t = Date.now(); i < N; i++) uuidjs.create(4);
  rate('uuidjs.create(4)', t);
}

// 140byte.es
for (var i = 0, t = Date.now(); i < N; i++) 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g,function(s,r){r=Math.random()*16|0;return (s=='x'?r:r&0x3|0x8).toString(16)});
rate('140byte.es_v4', t);

console.log('');
console.log('# v1');

// node-uuid - v1 string form
if (nodeuuid) {
  for (var i = 0, t = Date.now(); i < N; i++) nodeuuid.v1();
  rate('nodeuuid.v1()', t);

  for (var i = 0, t = Date.now(); i < N; i++) nodeuuid.v1('binary');
  rate('nodeuuid.v1(\'binary\')', t);

  var buffer = new nodeuuid.BufferClass(16);
  for (var i = 0, t = Date.now(); i < N; i++) nodeuuid.v1('binary', buffer);
  rate('nodeuuid.v1(\'binary\', buffer)', t);
}

// uuid-js - v1 string form
if (uuidjs) {
  for (var i = 0, t = Date.now(); i < N; i++) uuidjs.create(1);
  rate('uuidjs.create(1)', t);
}
bench.sh000066600000002115151762172210006166 0ustar00#!/bin/bash

# for a given node version run:
# for i in {0..9}; do node benchmark.js >> bench_0.6.2.log; done;

PATTERNS=('nodeuuid.v1()' "nodeuuid.v1('binary'," 'nodeuuid.v4()' "nodeuuid.v4('binary'," "uuid()" "uuid('binary')" 'uuidjs.create(1)' 'uuidjs.create(4)' '140byte')
FILES=(node_uuid_v1_string node_uuid_v1_buf node_uuid_v4_string node_uuid_v4_buf libuuid_v4_string libuuid_v4_binary uuidjs_v1_string uuidjs_v4_string 140byte_es)
INDICES=(2 3 2 3 2 2 2 2 2)
VERSIONS=$( ls bench_*.log | sed -e 's/^bench_\([0-9\.]*\)\.log/\1/' | tr "\\n" " " )
TMPJOIN="tmp_join"
OUTPUT="bench_results.txt"

for I in ${!FILES[*]}; do
  F=${FILES[$I]}
  P=${PATTERNS[$I]}
  INDEX=${INDICES[$I]}
  echo "version $F" > $F
  for V in $VERSIONS; do
    (VAL=$( grep "$P" bench_$V.log | LC_ALL=en_US awk '{ sum += $'$INDEX' } END { print sum/NR }' ); echo $V $VAL) >> $F
  done
  if [ $I == 0 ]; then
    cat $F > $TMPJOIN
  else
    join $TMPJOIN $F > $OUTPUT
    cp $OUTPUT $TMPJOIN
  fi
  rm $F
done

rm $TMPJOIN

gnuplot bench.gnu
convert -density 200 -resize 800x560 -flatten bench.eps bench.png
rm bench.eps
bench.gnu000066600000013276151762172210006357 0ustar00#!/opt/local/bin/gnuplot -persist
#
#    
#    	G N U P L O T
#    	Version 4.4 patchlevel 3
#    	last modified March 2011
#    	System: Darwin 10.8.0
#    
#    	Copyright (C) 1986-1993, 1998, 2004, 2007-2010
#    	Thomas Williams, Colin Kelley and many others
#    
#    	gnuplot home:     http://www.gnuplot.info
#    	faq, bugs, etc:   type "help seeking-assistance"
#    	immediate help:   type "help"
#    	plot window:      hit 'h'
set terminal postscript eps noenhanced defaultplex \
 leveldefault color colortext \
 solid linewidth 1.2 butt noclip \
 palfuncparam 2000,0.003 \
 "Helvetica" 14 
set output 'bench.eps'
unset clip points
set clip one
unset clip two
set bar 1.000000 front
set border 31 front linetype -1 linewidth 1.000
set xdata
set ydata
set zdata
set x2data
set y2data
set timefmt x "%d/%m/%y,%H:%M"
set timefmt y "%d/%m/%y,%H:%M"
set timefmt z "%d/%m/%y,%H:%M"
set timefmt x2 "%d/%m/%y,%H:%M"
set timefmt y2 "%d/%m/%y,%H:%M"
set timefmt cb "%d/%m/%y,%H:%M"
set boxwidth
set style fill  empty border
set style rectangle back fc lt -3 fillstyle   solid 1.00 border lt -1
set style circle radius graph 0.02, first 0, 0 
set dummy x,y
set format x "% g"
set format y "% g"
set format x2 "% g"
set format y2 "% g"
set format z "% g"
set format cb "% g"
set angles radians
unset grid
set key title ""
set key outside left top horizontal Right noreverse enhanced autotitles columnhead nobox
set key noinvert samplen 4 spacing 1 width 0 height 0 
set key maxcolumns 2 maxrows 0
unset label
unset arrow
set style increment default
unset style line
set style line 1  linetype 1 linewidth 2.000 pointtype 1 pointsize default pointinterval 0
unset style arrow
set style histogram clustered gap 2 title  offset character 0, 0, 0
unset logscale
set offsets graph 0.05, 0.15, 0, 0
set pointsize 1.5
set pointintervalbox 1
set encoding default
unset polar
unset parametric
unset decimalsign
set view 60, 30, 1, 1
set samples 100, 100
set isosamples 10, 10
set surface
unset contour
set clabel '%8.3g'
set mapping cartesian
set datafile separator whitespace
unset hidden3d
set cntrparam order 4
set cntrparam linear
set cntrparam levels auto 5
set cntrparam points 5
set size ratio 0 1,1
set origin 0,0
set style data points
set style function lines
set xzeroaxis linetype -2 linewidth 1.000
set yzeroaxis linetype -2 linewidth 1.000
set zzeroaxis linetype -2 linewidth 1.000
set x2zeroaxis linetype -2 linewidth 1.000
set y2zeroaxis linetype -2 linewidth 1.000
set ticslevel 0.5
set mxtics default
set mytics default
set mztics default
set mx2tics default
set my2tics default
set mcbtics default
set xtics border in scale 1,0.5 mirror norotate  offset character 0, 0, 0
set xtics  norangelimit
set xtics   ()
set ytics border in scale 1,0.5 mirror norotate  offset character 0, 0, 0
set ytics autofreq  norangelimit
set ztics border in scale 1,0.5 nomirror norotate  offset character 0, 0, 0
set ztics autofreq  norangelimit
set nox2tics
set noy2tics
set cbtics border in scale 1,0.5 mirror norotate  offset character 0, 0, 0
set cbtics autofreq  norangelimit
set title "" 
set title  offset character 0, 0, 0 font "" norotate
set timestamp bottom 
set timestamp "" 
set timestamp  offset character 0, 0, 0 font "" norotate
set rrange [ * : * ] noreverse nowriteback  # (currently [8.98847e+307:-8.98847e+307] )
set autoscale rfixmin
set autoscale rfixmax
set trange [ * : * ] noreverse nowriteback  # (currently [-5.00000:5.00000] )
set autoscale tfixmin
set autoscale tfixmax
set urange [ * : * ] noreverse nowriteback  # (currently [-10.0000:10.0000] )
set autoscale ufixmin
set autoscale ufixmax
set vrange [ * : * ] noreverse nowriteback  # (currently [-10.0000:10.0000] )
set autoscale vfixmin
set autoscale vfixmax
set xlabel "" 
set xlabel  offset character 0, 0, 0 font "" textcolor lt -1 norotate
set x2label "" 
set x2label  offset character 0, 0, 0 font "" textcolor lt -1 norotate
set xrange [ * : * ] noreverse nowriteback  # (currently [-0.150000:3.15000] )
set autoscale xfixmin
set autoscale xfixmax
set x2range [ * : * ] noreverse nowriteback  # (currently [0.00000:3.00000] )
set autoscale x2fixmin
set autoscale x2fixmax
set ylabel "" 
set ylabel  offset character 0, 0, 0 font "" textcolor lt -1 rotate by -270
set y2label "" 
set y2label  offset character 0, 0, 0 font "" textcolor lt -1 rotate by -270
set yrange [ 0.00000 : 1.90000e+06 ] noreverse nowriteback  # (currently [:] )
set autoscale yfixmin
set autoscale yfixmax
set y2range [ * : * ] noreverse nowriteback  # (currently [0.00000:1.90000e+06] )
set autoscale y2fixmin
set autoscale y2fixmax
set zlabel "" 
set zlabel  offset character 0, 0, 0 font "" textcolor lt -1 norotate
set zrange [ * : * ] noreverse nowriteback  # (currently [-10.0000:10.0000] )
set autoscale zfixmin
set autoscale zfixmax
set cblabel "" 
set cblabel  offset character 0, 0, 0 font "" textcolor lt -1 rotate by -270
set cbrange [ * : * ] noreverse nowriteback  # (currently [8.98847e+307:-8.98847e+307] )
set autoscale cbfixmin
set autoscale cbfixmax
set zero 1e-08
set lmargin  -1
set bmargin  -1
set rmargin  -1
set tmargin  -1
set pm3d explicit at s
set pm3d scansautomatic
set pm3d interpolate 1,1 flush begin noftriangles nohidden3d corners2color mean
set palette positive nops_allcF maxcolors 0 gamma 1.5 color model RGB 
set palette rgbformulae 7, 5, 15
set colorbox default
set colorbox vertical origin screen 0.9, 0.2, 0 size screen 0.05, 0.6, 0 front bdefault
set loadpath 
set fontpath 
set fit noerrorvariables
GNUTERM = "aqua"
plot 'bench_results.txt' using 2:xticlabel(1) w lp lw 2, '' using 3:xticlabel(1) w lp lw 2, '' using 4:xticlabel(1) w lp lw 2, '' using 5:xticlabel(1) w lp lw 2, '' using 6:xticlabel(1) w lp lw 2, '' using 7:xticlabel(1) w lp lw 2, '' using 8:xticlabel(1) w lp lw 2, '' using 9:xticlabel(1) w lp lw 2
#    EOF
benchmark-native.c000066600000001145151762172210010137 0ustar00/*
Test performance of native C UUID generation

To Compile: cc -luuid benchmark-native.c -o benchmark-native
*/

#include <stdio.h>
#include <unistd.h>
#include <sys/time.h>
#include <uuid/uuid.h>

int main() {
  uuid_t myid;
  char buf[36+1];
  int i;
  struct timeval t;
  double start, finish;

  gettimeofday(&t, NULL);
  start = t.tv_sec + t.tv_usec/1e6;

  int n = 2e5;
  for (i = 0; i < n; i++) {
    uuid_generate(myid);
    uuid_unparse(myid, buf);
  }

  gettimeofday(&t, NULL);
  finish = t.tv_sec + t.tv_usec/1e6;
  double dur = finish - start;

  printf("%d uuids/sec", (int)(n/dur));
  return 0;
}