[Benchmark X64] [stephentoub] Rewrite BigInteger internals to use native-wid ...

Job completed in 1 hour 39 minutes (remote runner delay: 1 minute 15 seconds).
dotnet/runtime#125799
Using arguments: benchmark BigInteger -medium
Main commit: dotnet/runtime@aeffb4c
PR commit: stephentoub/runtime@d480a31

System.Numerics.Tests.Perf_BigInteger

BenchmarkDotNet v0.16.0-nightly.20260302.459, Linux Ubuntu 24.04.4 LTS (Noble Numbat)
AMD EPYC 9V74 2.60GHz, 1 CPU, 8 logical and 4 physical cores
Memory: 31.34 GB Total, 5.4 GB Available
MediumRun : .NET 11.0.0 (11.0.0-dev, 42.42.42.42424), X64 RyuJIT x86-64-v4
Job=MediumRun  IterationCount=15  LaunchCount=2
WarmupCount=10

Method	Toolchain	numberString	arguments	Mean	Error	Ratio	Allocated	Alloc Ratio
Ctor_ByteArray	Main	-2147483648	?	11.172 ns	0.0317 ns	1.00	-	NA
Ctor_ByteArray	PR	-2147483648	?	11.310 ns	0.0270 ns	1.01	-	NA

ToByteArray	Main	-2147483648	?	9.405 ns	0.0090 ns	1.00	32 B	1.00
ToByteArray	PR	-2147483648	?	13.884 ns	0.0945 ns	1.48	32 B	1.00

Parse	Main	-2147483648	?	92.217 ns	0.2665 ns	1.00	-	NA
Parse	PR	-2147483648	?	96.036 ns	0.0502 ns	1.04	-	NA

ToStringX	Main	-2147483648	?	48.010 ns	0.0655 ns	1.00	40 B	1.00
ToStringX	PR	-2147483648	?	54.346 ns	0.0511 ns	1.13	40 B	1.00

ToStringD	Main	-2147483648	?	71.490 ns	0.1587 ns	1.00	48 B	1.00
ToStringD	PR	-2147483648	?	53.538 ns	0.1550 ns	0.75	48 B	1.00

Add	Main	?	1024,1024 bits	60.242 ns	0.2658 ns	1.00	160 B	1.00
Add	PR	?	1024,1024 bits	56.239 ns	0.0513 ns	0.93	160 B	1.00

Subtract	Main	?	1024,1024 bits	59.608 ns	0.0459 ns	1.00	152 B	1.00
Subtract	PR	?	1024,1024 bits	57.278 ns	0.4483 ns	0.96	152 B	1.00

GreatestCommonDivisor	Main	?	1024,1024 bits	4,432.629 ns	0.4544 ns	1.00	-	NA
GreatestCommonDivisor	PR	?	1024,1024 bits	4,623.695 ns	3.0054 ns	1.04	-	NA

Multiply	Main	?	1024,1024 bits	789.083 ns	0.6645 ns	1.00	280 B	1.00
Multiply	PR	?	1024,1024 bits	446.559 ns	1.6992 ns	0.57	280 B	1.00

ModPow	Main	?	1024,1024,64 bits	59,358.962 ns	122.2159 ns	1.00	32 B	1.00
ModPow	PR	?	1024,1024,64 bits	24,540.236 ns	71.7314 ns	0.41	32 B	1.00

Divide	Main	?	1024,512 bits	362.883 ns	0.8123 ns	1.00	96 B	1.00
Divide	PR	?	1024,512 bits	241.610 ns	0.1503 ns	0.67	96 B	1.00

Remainder	Main	?	1024,512 bits	376.420 ns	0.5621 ns	1.00	88 B	1.00
Remainder	PR	?	1024,512 bits	251.726 ns	2.3174 ns	0.67	88 B	1.00

Multiply	Main	?	1024,512 bits	465.757 ns	0.8628 ns	1.00	216 B	1.00
Multiply	PR	?	1024,512 bits	238.014 ns	0.3201 ns	0.51	216 B	1.00

Ctor_ByteArray	Main	123	?	8.570 ns	0.0024 ns	1.00	-	NA
Ctor_ByteArray	PR	123	?	8.613 ns	0.0054 ns	1.01	-	NA

ToByteArray	Main	123	?	7.565 ns	0.0149 ns	1.00	32 B	1.00
ToByteArray	PR	123	?	8.411 ns	0.0142 ns	1.11	32 B	1.00

Parse	Main	123	?	63.764 ns	0.0416 ns	1.00	-	NA
Parse	PR	123	?	68.774 ns	0.1331 ns	1.08	-	NA

ToStringX	Main	123	?	41.757 ns	0.3771 ns	1.00	32 B	1.00
ToStringX	PR	123	?	43.691 ns	0.3632 ns	1.05	32 B	1.00

ToStringD	Main	123	?	21.285 ns	0.0179 ns	1.00	-	NA
ToStringD	PR	123	?	21.683 ns	0.0237 ns	1.02	-	NA

Ctor_ByteArray	Main	123456789012(...)901234567890 [200]	?	15.518 ns	0.0340 ns	1.00	112 B	1.00
Ctor_ByteArray	PR	123456789012(...)901234567890 [200]	?	16.042 ns	0.0470 ns	1.03	112 B	1.00

ToByteArray	Main	123456789012(...)901234567890 [200]	?	13.209 ns	0.0376 ns	1.00	112 B	1.00
ToByteArray	PR	123456789012(...)901234567890 [200]	?	15.443 ns	0.0162 ns	1.17	112 B	1.00

Parse	Main	123456789012(...)901234567890 [200]	?	904.236 ns	1.7544 ns	1.00	112 B	1.00
Parse	PR	123456789012(...)901234567890 [200]	?	913.443 ns	0.7270 ns	1.01	112 B	1.00

ToStringX	Main	123456789012(...)901234567890 [200]	?	191.975 ns	0.7438 ns	1.00	360 B	1.00
ToStringX	PR	123456789012(...)901234567890 [200]	?	196.321 ns	0.4323 ns	1.02	360 B	1.00

ToStringD	Main	123456789012(...)901234567890 [200]	?	638.099 ns	3.5865 ns	1.00	424 B	1.00
ToStringD	PR	123456789012(...)901234567890 [200]	?	648.584 ns	3.7462 ns	1.02	424 B	1.00

Ctor_ByteArray	Main	12345678901(...)00000000000 [20000]	?	299.312 ns	1.8388 ns	1.00	8336 B	1.00
Ctor_ByteArray	PR	12345678901(...)00000000000 [20000]	?	301.172 ns	3.6368 ns	1.01	8336 B	1.00

ToByteArray	Main	12345678901(...)00000000000 [20000]	?	305.703 ns	3.3963 ns	1.00	8336 B	1.00
ToByteArray	PR	12345678901(...)00000000000 [20000]	?	298.559 ns	0.9298 ns	0.98	8336 B	1.00

Parse	Main	12345678901(...)00000000000 [20000]	?	510,650.561 ns	880.4476 ns	1.00	8336 B	1.00
Parse	PR	12345678901(...)00000000000 [20000]	?	323,565.851 ns	524.3145 ns	0.63	8336 B	1.00

ToStringX	Main	12345678901(...)00000000000 [20000]	?	11,994.519 ns	49.7575 ns	1.00	33248 B	1.00
ToStringX	PR	12345678901(...)00000000000 [20000]	?	11,943.769 ns	38.7860 ns	1.00	33248 B	1.00

ToStringD	Main	12345678901(...)00000000000 [20000]	?	1,164,839.605 ns	1,228.1964 ns	1.00	40024 B	1.00
ToStringD	PR	12345678901(...)00000000000 [20000]	?	554,266.448 ns	795.3574 ns	0.48	40024 B	1.00

Ctor_ByteArray	Main	12345678901(...)01234567890 [20000]	?	302.707 ns	4.6337 ns	1.00	8336 B	1.00
Ctor_ByteArray	PR	12345678901(...)01234567890 [20000]	?	305.049 ns	4.8384 ns	1.01	8336 B	1.00

ToByteArray	Main	12345678901(...)01234567890 [20000]	?	298.442 ns	2.3341 ns	1.00	8336 B	1.00
ToByteArray	PR	12345678901(...)01234567890 [20000]	?	305.536 ns	3.1002 ns	1.02	8336 B	1.00

Parse	Main	12345678901(...)01234567890 [20000]	?	788,348.823 ns	1,904.8741 ns	1.00	8336 B	1.00
Parse	PR	12345678901(...)01234567890 [20000]	?	453,240.665 ns	321.2609 ns	0.57	8336 B	1.00

ToStringX	Main	12345678901(...)01234567890 [20000]	?	12,017.180 ns	48.5948 ns	1.00	33248 B	1.00
ToStringX	PR	12345678901(...)01234567890 [20000]	?	11,983.923 ns	25.6282 ns	1.00	33248 B	1.00

ToStringD	Main	12345678901(...)01234567890 [20000]	?	1,585,266.249 ns	4,584.6829 ns	1.00	40024 B	1.00
ToStringD	PR	12345678901(...)01234567890 [20000]	?	792,352.493 ns	1,094.1976 ns	0.50	40024 B	1.00

Add	Main	?	16,16 bits	3.274 ns	0.0013 ns	1.00	-	NA
Add	PR	?	16,16 bits	3.277 ns	0.0014 ns	1.00	-	NA

Subtract	Main	?	16,16 bits	3.275 ns	0.0018 ns	1.00	-	NA
Subtract	PR	?	16,16 bits	3.275 ns	0.0021 ns	1.00	-	NA

GreatestCommonDivisor	Main	?	16,16 bits	21.270 ns	0.0065 ns	1.00	-	NA
GreatestCommonDivisor	PR	?	16,16 bits	21.265 ns	0.0040 ns	1.00	-	NA

Multiply	Main	?	16,16 bits	3.274 ns	0.0014 ns	1.00	-	NA
Multiply	PR	?	16,16 bits	3.275 ns	0.0038 ns	1.00	-	NA

ModPow	Main	?	16,16,16 bits	50.498 ns	0.0100 ns	1.00	-	NA
ModPow	PR	?	16,16,16 bits	61.361 ns	0.7693 ns	1.22	-	NA

Divide	Main	?	16,8 bits	16.192 ns	3.1308 ns	1.00	-	NA
Divide	PR	?	16,8 bits	11.828 ns	0.0027 ns	0.79	-	NA

Remainder	Main	?	16,8 bits	11.548 ns	0.0160 ns	1.00	-	NA
Remainder	PR	?	16,8 bits	11.429 ns	0.0915 ns	0.99	-	NA

Multiply	Main	?	16,8 bits	3.274 ns	0.0016 ns	1.00	-	NA
Multiply	PR	?	16,8 bits	3.273 ns	0.0021 ns	1.00	-	NA

ModPow	Main	?	16384,16384,64 bits	1,679,327.043 ns	1,767.9715 ns	1.00	32 B	1.00
ModPow	PR	?	16384,16384,64 bits	403,060.848 ns	2,315.8781 ns	0.24	32 B	1.00

Equals	Main	?	259 bytes, DiffFirstByte	2.259 ns	0.0093 ns	1.00	-	NA
Equals	PR	?	259 bytes, DiffFirstByte	2.263 ns	0.0069 ns	1.00	-	NA

Equals	Main	?	259 bytes, DiffLastByte	6.147 ns	0.0369 ns	1.00	-	NA
Equals	PR	?	259 bytes, DiffLastByte	5.896 ns	0.0230 ns	0.96	-	NA

Equals	Main	?	259 bytes, DiffMiddleByte	4.625 ns	0.1217 ns	1.00	-	NA
Equals	PR	?	259 bytes, DiffMiddleByte	4.462 ns	0.0210 ns	0.97	-	NA

Equals	Main	?	259 bytes, Same	6.048 ns	0.0799 ns	1.00	-	NA
Equals	PR	?	259 bytes, Same	5.673 ns	0.0302 ns	0.94	-	NA

Divide	Main	?	65536,32768 bits	458,333.410 ns	1,379.2191 ns	1.00	4128 B	1.00
Divide	PR	?	65536,32768 bits	273,226.925 ns	203.9525 ns	0.60	4128 B	1.00

Remainder	Main	?	65536,32768 bits	460,300.666 ns	1,717.3428 ns	1.00	4120 B	1.00
Remainder	PR	?	65536,32768 bits	274,707.368 ns	1,064.5532 ns	0.60	4120 B	1.00

Multiply	Main	?	65536,32768 bits	425,541.744 ns	564.6115 ns	1.00	12312 B	1.00
Multiply	PR	?	65536,32768 bits	277,840.518 ns	2,162.5177 ns	0.65	12312 B	1.00

Add	Main	?	65536,65536 bits	2,101.383 ns	9.7707 ns	1.00	8224 B	1.00
Add	PR	?	65536,65536 bits	1,816.524 ns	6.4593 ns	0.86	8224 B	1.00

Subtract	Main	?	65536,65536 bits	2,135.898 ns	13.5537 ns	1.00	8216 B	1.00
Subtract	PR	?	65536,65536 bits	1,819.194 ns	9.4846 ns	0.85	8216 B	1.00

GreatestCommonDivisor	Main	?	65536,65536 bits	4,087,784.838 ns	968.0474 ns	1.00	-	NA
GreatestCommonDivisor	PR	?	65536,65536 bits	4,094,046.987 ns	1,130.4961 ns	1.00	-	NA

Multiply	Main	?	65536,65536 bits	622,608.653 ns	914.4125 ns	1.00	16408 B	1.00
Multiply	PR	?	65536,65536 bits	387,694.439 ns	1,372.3194 ns	0.62	16408 B	1.00

Equals	Main	?	67 bytes, DiffFirstByte	2.255 ns	0.0072 ns	1.00	-	NA
Equals	PR	?	67 bytes, DiffFirstByte	2.255 ns	0.0078 ns	1.00	-	NA

Equals	Main	?	67 bytes, DiffLastByte	3.345 ns	0.0194 ns	1.00	-	NA
Equals	PR	?	67 bytes, DiffLastByte	3.343 ns	0.0196 ns	1.00	-	NA

Equals	Main	?	67 bytes, DiffMiddleByte	2.259 ns	0.0092 ns	1.00	-	NA
Equals	PR	?	67 bytes, DiffMiddleByte	2.254 ns	0.0080 ns	1.00	-	NA

Equals	Main	?	67 bytes, Same	3.271 ns	0.0241 ns	1.00	-	NA
Equals	PR	?	67 bytes, Same	2.816 ns	0.0181 ns	0.86	-	NA

Artifacts:

BDN_Artifacts.zip (571 KB)
results.md (30 KB)

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[Benchmark X64] [stephentoub] Rewrite BigInteger internals to use native-wid ... #1830

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[Benchmark X64] [stephentoub] Rewrite BigInteger internals to use native-wid ... #1830

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