Benchmark

Bcrypt Performance Micro Benchmark Comparison

The timing values are for a single bcrypt hash in milliseconds. Until cost 11, 250 rounds are calculated per implementation, from there on up the rounds are halved, beginning with cost 12 using 200, cost 14 50 rounds, etc.

PC/x86

Desktop i7-7700K

• Hardware: i7-7700K, 24GB Ram
• Software: Java 1.8.0_172 (Oracle Corporation), Windows 10 (10.0)
• Tool-Version: 0.4.0 (250 rounds max)

	cost 6	cost 8	cost 9	cost 10	cost 11	cost 12	cost 14	cost 15
FavreBcrypt	3.39 ms	13.57 ms	27.19 ms	55.08 ms	110.14 ms	217.71 ms	865.1 ms	1733.96 ms
JBcrypt	3.42 ms	13.8 ms	27.78 ms	56.31 ms	110.65 ms	221.6 ms	881.0 ms	1759.64 ms
BC	3.12 ms	12.51 ms	26.0 ms	50.59 ms	100.82 ms	203.43 ms	799.86 ms	1601.0 ms

Notebook Lenovo T460p

• Hardware: i5-6440HQ, 32GB Ram
• Software: Java 1.8.0_172 (Oracle Corporation), Windows 10 (10.0)
• Tool-Version: 0.4.0 (250 rounds max)

	cost 6	cost 8	cost 9	cost 10	cost 11	cost 12	cost 14	cost 15
FavreBcrypt	5.74 ms	21.56 ms	43.78 ms	78.54 ms	156.92 ms	311.9 ms	1250.94 ms	2529.56 ms
JBcrypt	5.63 ms	48.62 ms	40.54 ms	80.44 ms	159.84 ms	320.58 ms	1288.32 ms	2563.68 ms
BC	5.13 ms	24.22 ms	37.14 ms	73.43 ms	147.87 ms	293.07 ms	1178.74 ms	2347.36 ms

Surface Pro 4

• Hardware: i5-6300U, 8GB Ram
• Software: Java 1.8.0_172 (Oracle Corporation), Windows 10 (10.0)
• Tool-Version: 0.4.0

	cost 6	cost 8	cost 9	cost 10	cost 11	cost 12	cost 14	cost 15
FavreBcrypt	6.26 ms	22.99 ms	41.97 ms	95.91 ms	210.6 ms	354.71 ms	1413.58 ms	2715.72 ms
JBcrypt	6.18 ms	21.58 ms	42.64 ms	100.27 ms	187.34 ms	371.55 ms	1385.62 ms	2802.0 ms
BC	5.06 ms	19.38 ms	38.87 ms	97.2 ms	160.03 ms	322.63 ms	1257.66 ms	2496.52 ms

MacBook M1 Pro

• Hardware: M1 Pro, 32G Ram
• Software: Java temurin-1.8.0_362, MacOS 13.2
• Tool-Version: 0.10.1

	cost 4	cost 6	cost 8	cost 9	cost 10	cost 11	cost 12	cost 14	cost 15
JBcrypt	1.53 ms	5.6 ms	21.59 ms	41.66 ms	83.48 ms	170.68 ms	331.73 ms	1326.18 ms	2648.52 ms
BC	1.38 ms	5.3 ms	20.6 ms	40.32 ms	78.92 ms	157.67 ms	317.94 ms	1260.5 ms	2521.36 ms
FavreBcrypt	1.63 ms	5.99 ms	21.9 ms	41.17 ms	82.14 ms	164.42 ms	328.5 ms	1312.58 ms	2621.8 ms

Android

Samsung Note 8

• Hardware: SM-N950F
• Software: SDK 25, N950FXXS3BRB2, NMF26X, Linux (4.4.13-12472670)
• Tool-Version: 0.4.0 (250 rounds max)

	cost 6	cost 8	cost 9	cost 10	cost 11	cost 12	cost 14	cost 15
FavreBcrypt	7.7 ms	28.67 ms	56.69 ms	112.75 ms	224.94 ms	449.4 ms	1796.44 ms	3594.04 ms
JBcrypt	7.71 ms	29.16 ms	57.78 ms	115.0 ms	229.52 ms	458.34 ms	1834.66 ms	3670.52 ms
BC	9.3 ms	35.57 ms	70.58 ms	140.66 ms	280.91 ms	560.98 ms	2245.72 ms	4504.68 ms

Samsung Galaxy S8+

• Hardware: SM-G955F, 64GB
• Software: SDK 26, G955FXXU2CRF7, R16NW
• Tool-Version: 0.4.0 (250 rounds max)

	cost 6	cost 8	cost 9	cost 10	cost 11	cost 12	cost 14	cost 15
FavreBcrypt	8.04 ms	28.52 ms	55.72 ms	110.18 ms	219.75 ms	438.69 ms	1760.12 ms	3538.72 ms
JBcrypt	7.92 ms	29.43 ms	58.01 ms	115.51 ms	231.14 ms	462.24 ms	1856.24 ms	4037.4 ms
BC	10.06 ms	37.38 ms	76.74 ms	152.87 ms	300.66 ms	600.19 ms	2427.3 ms	4793.96 ms

Pixel 2

• Hardware: walleye
• Software: Android P DP4, PP4.180612.004, Linux (4.4.116-g5ec1df259c0f)
• Tool-Version: 0.4.0 (250 rounds max)

	cost 6	cost 8	cost 9	cost 10	cost 11	cost 12	cost 14	cost 15
FavreBcrypt	10.64 ms	39.33 ms	77.4 ms	154.21 ms	306.48 ms	611.13 ms	2442.48 ms	4877.28 ms
JBcrypt	10.65 ms	39.7 ms	78.66 ms	156.1 ms	311.5 ms	621.34 ms	2481.62 ms	4963.88 ms
BC	14.65 ms	57.34 ms	114.48 ms	228.04 ms	454.45 ms	908.46 ms	3632.18 ms	7267.24 ms

Pixel 1

• Hardware: sailfish
• Software: SDK 27, OPM1.171019.012, Linux (3.18.70-g520f6eb)
• Tool-Version: 0.4.0 (250 rounds max)

	cost 6	cost 8	cost 9	cost 10	cost 11	cost 12	cost 14	cost 15
FavreBcrypt	11.74 ms	50.94 ms	71.87 ms	140.08 ms	276.31 ms	547.92 ms	2190.28 ms	4366.56 ms
JBcrypt	11.36 ms	45.98 ms	73.52 ms	160.7 ms	284.31 ms	565.24 ms	2258.44 ms	4507.68 ms
BC	15.49 ms	89.74 ms	112.17 ms	221.06 ms	439.98 ms	877.18 ms	3510.62 ms	7026.96 ms

LG G5

• Hardware: LG-H850
• Software: SDK 24, 18082154383aa, Linux (3.10.73-gd5f156e7af96)
• Tool-Version: 0.4.0 (250 rounds max)

	cost 6	cost 8	cost 9	cost 10	cost 11	cost 12	cost 14	cost 15
FavreBcrypt	7.41 ms	27.4 ms	56.74 ms	117.75 ms	241.93 ms	490.57 ms	1986.48 ms	4005.96 ms
JBcrypt	7.24 ms	28.65 ms	56.89 ms	121.64 ms	246.13 ms	501.2 ms	2019.62 ms	4077.52 ms
BC	9.83 ms	40.52 ms	82.1 ms	169.95 ms	343.74 ms	703.77 ms	2841.28 ms	5694.52 ms

Nexus 5X

• Hardware: bullhead
• Software: SDK 27, OPM2.171018.029, Linux (3.18.31-perf-g25cc4c2-00017-gf51f86fa)
• Tool-Version: 0.4.0 (250 rounds max)

	cost 6	cost 8	cost 9	cost 10	cost 11	cost 12	cost 14	cost 15
FavreBcrypt	31.03 ms	104.66 ms	77.34 ms	186.39 ms	810.8 ms	1617.83 ms	3860.78 ms	8216.64 ms
JBcrypt	28.02 ms	39.69 ms	149.22 ms	265.72 ms	841.09 ms	1175.68 ms	3763.7 ms	7939.96 ms
BC	50.06 ms	128.4 ms	202.93 ms	408.63 ms	1540.98 ms	3086.58 ms	6670.66 ms	13826.56 ms

Moto G5

• Hardware: cedric
• Software: SDK 24, NPPS25.137-72-4
• Tool-Version: 0.4.0 (250 rounds max)

	cost 6	cost 8	cost 9	cost 10	cost 11	cost 12	cost 14	cost 15
FavreBcrypt	36.47 ms	141.48 ms	282.14 ms	562.0 ms	1122.04 ms	2242.84 ms	8985.64 ms	17942.12 ms
JBcrypt	36.08 ms	142.58 ms	284.33 ms	567.27 ms	1133.36 ms	2265.74 ms	9096.0 ms	18125.28 ms
BC	56.6 ms	222.89 ms	444.54 ms	886.62 ms	1773.0 ms	3546.03 ms	14178.62 ms	28354.52 ms

Moto G (4G)

• Hardware: Moto G
• Software: SDK 22, LPBS23.13-17.3-1, Linux (3.4.42-g1bf0c10-00008-g04c189a)
• Tool-Version: 0.4.0 (250 rounds max)

	cost 6	cost 8	cost 9	cost 10	cost 11	cost 12	cost 14	cost 15
FavreBcrypt	50.5 ms	180.92 ms	356.87 ms	707.67 ms	1410.14 ms	2807.7 ms	11228.48 ms	22422.16 ms
JBcrypt	56.4 ms	216.3 ms	428.84 ms	855.26 ms	1706.08 ms	3417.44 ms	13632.92 ms	27270.0 ms
BC	76.16 ms	295.14 ms	586.58 ms	1170.04 ms	2340.07 ms	4675.33 ms	18694.74 ms	37446.76 ms

Pixel 2 SDK 27 Emulator

• Hardware: i7-7700K, 24GB Ram
• Software: Android Emulator (HAXM), SDK 27, Java 1.8.0_172 (Oracle Corporation), Windows 10 (10.0)
• Tool-Version: 0.4.0 (250 rounds max)

	cost 6	cost 8	cost 9	cost 10	cost 11	cost 12	cost 14	cost 15
FavreBcrypt	6.56 ms	15.16 ms	30.41 ms	58.9 ms	120.32 ms	234.25 ms	941.22 ms	1805.56 ms
JBcrypt	3.86 ms	15.56 ms	30.02 ms	60.78 ms	122.66 ms	242.26 ms	961.44 ms	1830.48 ms
BC	4.64 ms	17.95 ms	36.48 ms	72.56 ms	146.56 ms	286.69 ms	1098.52 ms	2149.92 ms

JMH Benchmarks

The sub-module benchmark-jmh contains a simple JMH micro benchmark suite.

PC/x86

Desktop i7-7700K

Win 10

# JMH version: 1.21
# VM version: JDK 1.8.0_172, Java HotSpot(TM) 64-Bit Server VM, 25.172-b11
# Run complete. Total time: 00:10:31

REMEMBER: The numbers below are just data. To gain reusable insights, you need to follow up on
why the numbers are the way they are. Use profilers (see -prof, -lprof), design factorial
experiments, perform baseline and negative tests that provide experimental control, make sure
the benchmarking environment is safe on JVM/OS/HW level, ask for reviews from the domain experts.
Do not assume the numbers tell you what you want them to tell.

Benchmark                                (cost)  Mode  Cnt    Score    Error  Units
BcryptBenchmark.benchmarkBcBcryptLog          5  avgt    3    1,592 ±  0,036  ms/op
BcryptBenchmark.benchmarkBcBcryptLog          8  avgt    3   12,488 ±  0,078  ms/op
BcryptBenchmark.benchmarkBcBcryptLog         10  avgt    3   49,857 ±  0,269  ms/op
BcryptBenchmark.benchmarkBcBcryptLog         12  avgt    3  200,578 ± 25,269  ms/op
BcryptBenchmark.benchmarkFavreBcryptLog       5  avgt    3    1,759 ±  0,208  ms/op
BcryptBenchmark.benchmarkFavreBcryptLog       8  avgt    3   13,599 ±  0,297  ms/op
BcryptBenchmark.benchmarkFavreBcryptLog      10  avgt    3   54,062 ±  0,635  ms/op
BcryptBenchmark.benchmarkFavreBcryptLog      12  avgt    3  215,526 ±  6,247  ms/op
BcryptBenchmark.benchmarkJBcryptLog           5  avgt    3    1,774 ±  0,143  ms/op
BcryptBenchmark.benchmarkJBcryptLog           8  avgt    3   13,222 ±  0,135  ms/op
BcryptBenchmark.benchmarkJBcryptLog          10  avgt    3   52,583 ±  1,449  ms/op
BcryptBenchmark.benchmarkJBcryptLog          12  avgt    3  209,182 ±  4,118  ms/op

T460p (i5-6440HQ)

# JMH version: 1.21
# VM version: JDK 1.8.0_172, Java HotSpot(TM) 64-Bit Server VM, 25.172-b11
# Warmup: 2 iterations, 5 s each
# Measurement: 3 iterations, 10 s each
# Timeout: 10 min per iteration
# Threads: 1 thread, will synchronize iterations
# Benchmark mode: Average time, time/op

Benchmark                             (cost)  Mode  Cnt     Score     Error  Units
BcryptBenchmark.benchmarkBcBcrypt          5  avgt    3     2,376 ±   0,263  ms/op
BcryptBenchmark.benchmarkBcBcrypt          6  avgt    3     4,814 ±   3,855  ms/op
BcryptBenchmark.benchmarkBcBcrypt          8  avgt    3    19,985 ±  11,735  ms/op
BcryptBenchmark.benchmarkBcBcrypt         10  avgt    3    76,259 ±  13,979  ms/op
BcryptBenchmark.benchmarkBcBcrypt         12  avgt    3   305,592 ±  28,062  ms/op
BcryptBenchmark.benchmarkBcBcrypt         14  avgt    3  1220,479 ± 136,330  ms/op
BcryptBenchmark.benchmarkFavreBcrypt       5  avgt    3     2,635 ±   0,712  ms/op
BcryptBenchmark.benchmarkFavreBcrypt       6  avgt    3     5,219 ±   1,119  ms/op
BcryptBenchmark.benchmarkFavreBcrypt       8  avgt    3    20,340 ±   1,963  ms/op
BcryptBenchmark.benchmarkFavreBcrypt      10  avgt    3    81,841 ±   1,818  ms/op
BcryptBenchmark.benchmarkFavreBcrypt      12  avgt    3   322,325 ±  35,615  ms/op
BcryptBenchmark.benchmarkFavreBcrypt      14  avgt    3  1354,536 ± 204,433  ms/op
BcryptBenchmark.benchmarkJBcrypt           5  avgt    3     2,746 ±   0,738  ms/op
BcryptBenchmark.benchmarkJBcrypt           6  avgt    3     5,321 ±   2,289  ms/op
BcryptBenchmark.benchmarkJBcrypt           8  avgt    3    20,993 ±   8,999  ms/op
BcryptBenchmark.benchmarkJBcrypt          10  avgt    3    87,351 ±  64,060  ms/op
BcryptBenchmark.benchmarkJBcrypt          12  avgt    3   335,343 ± 160,473  ms/op
BcryptBenchmark.benchmarkJBcrypt          14  avgt    3  1319,662 ± 587,548  ms/op

Surface Pro 4 (i5-6300u)

# JMH version: 1.21
# VM version: JDK 1.8.0_172, Java HotSpot(TM) 64-Bit Server VM, 25.172-b11

Benchmark                             (cost)  Mode  Cnt     Score    Error  Units
BcryptBenchmark.benchmarkFavreBcrypt       5  avgt    3     2,736 ±  0,424  ms/op
BcryptBenchmark.benchmarkFavreBcrypt       6  avgt    3     5,378 ±  0,450  ms/op
BcryptBenchmark.benchmarkFavreBcrypt       8  avgt    3    21,416 ±  5,749  ms/op
BcryptBenchmark.benchmarkFavreBcrypt      10  avgt    3    84,175 ±  4,537  ms/op
BcryptBenchmark.benchmarkFavreBcrypt      12  avgt    3   335,873 ± 16,492  ms/op
BcryptBenchmark.benchmarkFavreBcrypt      14  avgt    3  1345,438 ± 40,216  ms/op
BcryptBenchmark.benchmarkJBcrypt           5  avgt    3     2,781 ±    0,267  ms/op
BcryptBenchmark.benchmarkJBcrypt           6  avgt    3     5,455 ±    0,077  ms/op
BcryptBenchmark.benchmarkJBcrypt           8  avgt    3    21,533 ±    0,833  ms/op
BcryptBenchmark.benchmarkJBcrypt          10  avgt    3    85,868 ±    8,942  ms/op
BcryptBenchmark.benchmarkJBcrypt          12  avgt    3   407,800 ± 2012,131  ms/op
BcryptBenchmark.benchmarkJBcrypt          14  avgt    3  1363,622 ±   11,306  ms/op