Benchmarks for dotnet/runtime#136063 (for @Copilot) #659

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1. EgorBot commented on Oct 19, 2026

   

   EgorBot

   on Oct 19, 2026

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   Results for macos15_helix_arm64

   @Copilot

   BenchmarkDotNet v0.16.0-preview.1, macOS Sequoia 15.7.5 (24G624) [Darwin 24.6.0]
   Apple M4, 1 CPU, 10 logical and 10 physical cores
   Memory: 16 GB Total, 1.64 GB Available
   .NET SDK 11.0.100
     [Host]     : .NET 11.0.0 (11.0.0, 11.0.26.51518), Arm64 RyuJIT armv8.0-a
   

   Method	Toolchain	Count	Mean	Error	Ratio	Gen0	Gen1	Allocated	Alloc Ratio
   Reverse	main**	100	2,277.5 ns	23.26 ns	5.76	0.5760	0.0076	4824 B	1.58
   Reverse	PR #136063	100	395.6 ns	1.30 ns	1.00	0.3643	0.0019	3048 B	1.00
   FrozenBuilderReverse	main	100	2,169.1 ns	32.67 ns	6.33	0.5760	0.0076	4848 B	1.58
   FrozenBuilderReverse	PR #136063	100	342.8 ns	2.76 ns	1.00	0.3672	0.0038	3072 B	1.00
   MutableBuilderReverse	main	100	1,863.4 ns	12.68 ns	10.99	-	-	-	NA
   MutableBuilderReverse	PR #136063	100	169.5 ns	0.49 ns	1.00	-	-	-	NA
   Reverse	main**	10000	692,071.7 ns	1,437.95 ns	14.02	56.6406	23.4375	480024 B	1.69
   Reverse	PR #136063	10000	49,356.4 ns	221.60 ns	1.00	33.8745	10.4370	283416 B	1.00
   FrozenBuilderReverse	main	10000	688,063.1 ns	3,109.62 ns	18.14	56.6406	23.4375	480048 B	1.69
   FrozenBuilderReverse	PR #136063	10000	37,939.2 ns	73.52 ns	1.00	33.8745	12.0239	283440 B	1.00
   MutableBuilderReverse	main	10000	598,315.9 ns	7,120.06 ns	29.12	-	-	-	NA
   MutableBuilderReverse	PR #136063	10000	20,546.6 ns	91.38 ns	1.00	-	-	-	NA
   Reverse	main**	100000	9,124,812.2 ns	43,092.46 ns	12.33	562.5000	484.3750	4800024 B	1.53
   Reverse	PR #136063	100000	740,246.2 ns	4,861.65 ns	1.00	375.9766	311.5234	3145704 B	1.00
   FrozenBuilderReverse	main	100000	8,927,580.2 ns	25,228.05 ns	14.00	562.5000	484.3750	4800048 B	1.53
   FrozenBuilderReverse	PR #136063	100000	637,879.3 ns	3,690.51 ns	1.00	375.9766	311.5234	3145728 B	1.00
   MutableBuilderReverse	main	100000	7,647,817.0 ns	15,713.62 ns	36.43	-	-	-	NA
   MutableBuilderReverse	PR #136063	100000	209,957.3 ns	1,082.88 ns	1.00	-	-	-	NA

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2. EgorBot commented on Oct 19, 2026

   

   EgorBot

   on Oct 19, 2026

   OwnerAuthor

   More actions

   Results for ubuntu24_azure_turin

   @Copilot

   BenchmarkDotNet v0.16.0-preview.1, Linux Ubuntu 24.04.5 LTS (Noble Numbat)
   AMD EPYC 9V45 2.60GHz, 1 CPU, 8 logical and 4 physical cores
   Memory: 31.33 GB Total, 8.3 GB Available
   .NET SDK 11.0.100
     [Host]     : .NET 11.0.0 (11.0.0, 11.0.26.51518), X64 RyuJIT x86-64-v4
   

   Method	Toolchain	Count	Mean	Error	Ratio	Gen0	Gen1	Allocated	Alloc Ratio
   Reverse	main**	100	2,489.8 ns	25.44 ns	5.39	0.2861	0.0038	4824 B	1.58
   Reverse	PR #136063	100	462.3 ns	9.17 ns	1.00	0.1822	0.0010	3048 B	1.00
   FrozenBuilderReverse	main	100	2,302.4 ns	44.32 ns	5.63	0.2861	0.0038	4848 B	1.58
   FrozenBuilderReverse	PR #136063	100	409.0 ns	8.14 ns	1.00	0.1836	0.0019	3072 B	1.00
   MutableBuilderReverse	main	100	1,946.9 ns	17.60 ns	8.96	-	-	-	NA
   MutableBuilderReverse	PR #136063	100	217.4 ns	3.21 ns	1.00	-	-	-	NA
   Reverse	main**	10000	956,881.4 ns	4,145.39 ns	18.14	28.3203	10.7422	480024 B	1.69
   Reverse	PR #136063	10000	52,764.2 ns	983.79 ns	1.00	16.9067	4.4556	283416 B	1.00
   FrozenBuilderReverse	main	10000	991,041.2 ns	7,014.44 ns	22.10	27.3438	9.7656	480048 B	1.69
   FrozenBuilderReverse	PR #136063	10000	44,865.4 ns	836.15 ns	1.00	16.9067	5.7373	283440 B	1.00
   MutableBuilderReverse	main	10000	892,884.0 ns	15,254.73 ns	40.37	-	-	-	NA
   MutableBuilderReverse	PR #136063	10000	22,121.6 ns	209.65 ns	1.00	-	-	-	NA
   Reverse	main**	100000	12,491,784.4 ns	232,300.74 ns	17.26	281.2500	265.6250	4800024 B	1.53
   Reverse	PR #136063	100000	724,191.2 ns	14,389.05 ns	1.00	187.5000	127.9297	3145704 B	1.00
   FrozenBuilderReverse	main	100000	11,525,844.1 ns	226,587.77 ns	18.90	281.2500	265.6250	4800048 B	1.53
   FrozenBuilderReverse	PR #136063	100000	610,242.8 ns	11,802.53 ns	1.00	187.5000	127.9297	3145728 B	1.00
   MutableBuilderReverse	main	100000	9,953,515.0 ns	96,502.41 ns	42.96	-	-	-	NA
   MutableBuilderReverse	PR #136063	100000	231,812.0 ns	4,600.78 ns	1.00	-	-	-	NA

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