Java Microbenchmark Applet

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Run the microbenchmarks

Note: now that Doug Bell's more comprehensive Benchmark applet is out, I'm no longer recording times for these microbenchmarks. You can get a lot more information from Doug's applet -- but it takes a while longer :-).

This applet runs the last version of the Java Microbenchmarks. Make sure that your machine is idle before starting the applet; it will take about 45 seconds to run. Each of the microbenchmarks is run three times for one second at a time, and the maximum number of operations completed within a second is used to calculate the time per operation.

[Your browser doesn't run Java]

For an analysis of the results for a range of Java implementations on a single machine, see Java Microbenchmarks.

The tables below show results in microseconds contributed by other users for v1.1 of the Java microbenchmarks (see also older results for previous versions). Lower times are better. I've separated the results into x86 and non-x86 architectures, grouped results for similar platforms, and put them in rough order of speed. Browser names are abbreviated:

I've highlighted the names of browsers that use a just-in-time compiler.

Results for x86 architectures

Browser CPU
& speed		 Null
Loop		 Local
i=n		 this.
i=n		 Array
a[0]=n		 Byte
b++		 Short
s++		 Int
i++		 Long
l++		 Float
f++		 Doub.
d++		 New
obj.		 int
[10]		 Call
f()		 Sync
f()		 Math
abs()		 Inline
abs()
NN 2.02
(OS/2)		 486
66 MHz		 0.170 0.017 0.069 0.150 0.110 0.110 0.037 0.170 0.560 0.660 23.0 27.0 1.200 88.0 2.800 0.380
IE
3.01		 486
100 MHz		 0.079 0.010 0.190 0.310 0.070 0.067 0.010 0.390 0.570 0.770 55.0 51.0 0.600 21.0 2.300 0.600
NN 3.0
(Linux)		 486
133 MHz		 1.200 0.580 0.930 1.200 1.400 1.400 0.270 1.700 1.300 1.300 22.0 28.0 2.400 12.0 5.1 0.630
NN 3.0
(Linux)		 Pentium
OD 83MHz		 1.300 0.680 1.100 1.500 1.600 1.700 0.290 1.600 1.200 1.300 21.0 27.0 2.500 12.0 5.300 0.760
IE
3.0b2		 Pentium
OD 83MHz		 1.400 0.440 0.800 1.000 1.100 1.000 0.260 0.970 0.860 1.100 16.0 13.0 3.300 4.7 5.800 0.580
NN
3.0		 Pentium
OD 83MHz		 0.049 0.006 0.110 0.110 0.076 0.076 0.012 0.037 0.086 0.086 23.0 45.0 0.200 11.0 0.530 0.120
NS
4.0b1		 Pentium
60 MHz		 0.069 0.020 0.110 0.086 0.100 0.100 0.017 0.049 0.120 0.120 31.0 69.0 0.270 16.0 1.000 0.140
JDK
1.0.2		 Pentium
75 MHz		 1.100 0.540 0.980 1.200 1.400 1.400 0.250 1.300 1.200 1.300 8.8 2.6 2.000 19.0 4.400 0.550
NN
3.0		 Pentium
75 MHz		 0.055 0.013 0.089 0.069 0.080 0.080 0.013 0.039 0.097 0.100 26.0 51.0 0.220 19.0 0.600 0.092
IE
3.0		 Pentium
75 MHz		 0.055 0.007 0.088 0.054 0.067 0.068 0.006 0.041 0.096 0.220 12.0 11.0 0.180 3.6 0.700 0.190
NN 3.01
(FreeBSD)		 Pentium
100 MHz		 1.100 0.510 0.860 1.100 1.300 1.300 0.240 1.300 1.100 1.100 17.0 21.0 2.100 10.00 4.400 0.570
NN
3.0		 Pentium
100 MHz		 0.041 0.005 0.038 0.052 0.062 0.064 0.011 0.029 0.073 0.073 19.0 33.0 0.160 11.0 0.450 0.051
IE
3.0		 Pentium
100 MHz		 0.043 0.005 0.037 0.040 0.052 0.050 0.005 0.030 0.074 0.140 8.6 7.5 0.140 2.8 0.540 0.079
NN 3b2
(OS/2)		 Pentium
100 MHz		 0.041 0.008 0.067 0.062 0.041 0.041 0.010 0.031 0.095 0.096 21.0 22.0 0.360 46.0 0.810 0.066
NN 2.02GA
(OS/2)		 Pentium
100 MHz		 0.041 0.010 0.067 0.066 0.041 0.041 0.012 0.031 0.096 0.095 6.4 12.0 0.420 16.0 0.910 0.067
NN
4.0b1		 Pentium
120 MHz		 0.034 0.011 0.077 0.043 0.051 0.051 0.009 0.023 0.059 0.060 16.0 27.0 0.130 7.4 0.390 0.073
NN 2.02
(OS/2)		 Pentium
133 MHz		 0.031 0.006 0.083 0.039 0.031 0.032 0.008 0.025 0.071 0.072 3.9 5.4 0.280 9.1 0.064 0.049
NN
3.0		 Pentium
133 MHz		 0.031 0.004 0.039 0.038 0.046 0.046 0.008 0.021 0.053 0.053 14.0 25.0 0.130 8.0 0.320 0.040
NN
4.0b1		 Pentium
133 MHz		 0.030 0.011 0.086 0.070 0.044 0.046 0.007 0.022 0.053 0.055 15.0 24.0 0.120 7.9i 0.340 0.086
NN 2.02
(OS/2)		 Pentium
166 MHz		 0.025 0.005 0.040 0.040 0.025 0.025 0.006 0.019 0.058 0.058 9.0 14.0 0.210 8.0 0.049 0.040
NN 3.01
(FreeBSD)		 PPro
200 MHz		 0.650 0.350 0.550 0.710 0.910 0.890 0.060 0.870 0.750 0.780 6.5 8.8 1.000 3.7 2.500 0.410
NN
3.0		 PPro
200 MHz		 0.015 0.003 0.007 0.021 0.008 0.006 0.004 0.014 0.009 0.014 6.0 9.4 0.046 3.6 0.120 0.025
IE
3.0		 PPro
200 MHz		 0.010 0.003 0.005 0.011 0.007 0.007 0.002 0.022 0.013 0.011 3.0 3.9 0.046 1.2 0.100 0.011
NN 2.02GA
(OS/2)		 PPro
200 MHz		 0.015 0.001 0.018 0.023 0.010 0.010 0.004 0.021 0.014 0.009 5.1 6.2 0.180 7.7 0.029 0.018

Results for non-x86 architectures

Browser CPU
& speed		 Null
Loop		 Local
i=n		 this.
i=n		 Array
a[0]=n		 Byte
b++		 Short
s++		 Int
i++		 Long
l++		 Float
f++		 Doub.
d++		 New
obj.		 int
[10]		 Call
f()		 Sync
f()		 Math
abs()		 Inline
abs()
NN
3.0b7		 68040
25 MHz		 72.0 22.0 40.0 41.0 60.0 59.0 24.0 71.0 59.0 81.0 220.0 180.0 66.0 140.0 220.0 37.0
NN
3.0		 RS/6000
40 MHz		 5.900 0.890 2.400 2.700 3.200 3.100 0.340 4.000 2.300 2.600 61.0 71.0 7.800 45.0 16.00 1.200
NN
3.0		 PA7100
60 MHz		 1.800 0.700 1.200 1.900 1.900 1.800 0.43 2.300 1.600 2.300 15.0 16.0 4.000 24.0 9.100 1.200
NN
3.0		 PPC601
66 MHz		 1.700 0.770 1.100 1.800 1.900 2.000 0.460 2.900 1.500 1.900 29.0 37.0 4.600 24.0 7.800 0.870
NN
3.0		 PPC601
80 MHz		 1.100 0.450 0.900 0.950 1.100 1.100 0.260 1.100 0.890 0.950 18.0 22.0 2.700 14.0 4.800 0.560
NN
3.0		 PPC 604
120 MHz		 0.660 0.290 0.470 0.630 0.740 0.740 0.170 1.400 0.610 0.700 11.0 15.0 1.400 7.8 2.800 0.350
NN
3.0		 PPC 604
120 MHz		 0.540 0.250 0.360 0.490 0.570 0.570 0.120 1.100 0.470 0.540 14.0 37.0 1.500 7.2 2.800 0.270
NN
3.01		 PPC 603e
180 MHz		 0.430 0.180 0.310 0.450 0.460 0.460 0.100 0.720 0.390 0.430 11.0 13.0 1.900 7.500 2.0 0.210
MRJ
1.0		 PPC 603e
180 MHz		 0.690 0.300 0.490 0.680 0.750 0.750 0.160 0.700 0.600 0.640 6.1 8.6 1.200 7.0 2.300 0.320
CW
1.03		 PPC 603e
180 MHz		 0.290 0.110 0.170 0.230 0.270 0.270 0.070 0.260 0.220 0.270 6.1 11.0 0.410 16.0 0.910 0.130
CW
1.04b1		 PPC 603e
180 MHz		 0.079 0.012 0.056 0.096 0.024 0.024 0.004 0.041 0.047 0.072 6.9 14.0 0.400 13.0 0.610 0.034
NN
3.0		 PPC 604e
180 MHz		 0.370 0.160 0.260 0.350 0.410 0.410 0.097 0.800 0.340 0.390 6.3 9.8 0.780 4.4 1.600 0.200
NN
3.0		 PPC604e
225 MHz		 0.290 0.130 0.210 0.280 0.340 0.340 0.079 0.630 0.270 0.320 5.2 6.9 0.620 3.6 1.200 0.160
NN
3.0		 A21064
133 MHz		 0.990 0.470 0.750 1.000 1.300 1.300 0.270 1.100 1.000 1.200 25.0 20.0 2.200 15.0 4.800 0.640
NN
3.01		 21064A
233 MHz		 0.670 0.270 0.430 0.580 0.670 0.670 0.160 0.590 0.590 0.630 12.0 11.0 1.400 9.4 3.800 0.320
IE
3.0		 A21164
500 MHz		 0.430 0.110 0.180 0.200 0.250 0.270 0.087 0.270 0.220 0.320 6.100 5.200 0.370 1.200 1.200 0.150
NN
3.0		 R4600
100 MHz		 1.000 0.500 0.790 1.100 1.100 1.100 0.260 1.000 0.920 1.000 17.0 25.0 2.000 11.0 4.800 0.520
NN
2.01S		 R4400
150 MHz		 0.770 0.380 0.760 0.850 0.910 0.920 0.220 0.900 0.800 0.940 11.0 37.0 1.800 15.0 3.800 0.490
NN
3.0		 Sparc5
85 MHz		 1.100 0.550 0.880 1.200 1.400 1.400 0.310 1.300 1.100 1.400 19.0 23.0 2.500 19.0 6.400 0.690
JDK
1.1		 Sparc5
110 MHz		 0.390 0.180 0.300 0.400 0.420 0.420 0.100 0.450 0.360 0.480 7.100 9.400 1.100 3.700 2.500 0.260
JDK
1.1		 Ultra 1
170 MHz		 0.330 0.150 0.250 0.340 0.410 0.410 0.097 0.370 0.320 0.360 3.5 4.9 0.490 2.100 1.200 0.180
NN
3.0		 UltraSPARC
167 MHz		 0.540 0.300 0.450 0.630 0.750 0.740 0.170 0.650 0.600 0.850 6.2 7.6 1.200 4.4 2.500 0.330
Guava
(proto)		 UltraSPARC
167 MHz		 0.024 0.005 0.006 0.036 0.024 0.024 0.003 0.030 0.150 0.280 22.0 9.9 0.170 3.8 0.960 0.740

Contributors

See also older results for previous versions of the microbenchmarks. Source code is available on request.
http://www.cs.cmu.edu/~jch/java/microbench.html Java Microbenchmark Applet
Last modified: Wed 21 May 1997 Copyright © 1996, 1997 Jonathan Hardwick