CODEWITHSUNDEEP
c#.netbenchmarkingbenchmarkdotnet
user11847100
user11847100

Reputation:

How to read the result table of BenchmarkDotNet

I ran a benchmark example and got this table.

BenchmarkDotNet=v0.12.0, OS=Windows 7 SP1 (6.1.7601.0)
Intel Xeon CPU E5-4660 v3 2.10GHz, 1 CPU, 28 logical and 14 physical cores
Frequency=2050214 Hz, Resolution=487.7540 ns, Timer=TSC
  [Host]     : .NET Framework 4.8 (4.8.4018.0), X86 LegacyJIT  [AttachedDebugger]
  DefaultJob : .NET Framework 4.8 (4.8.4018.0), X86 LegacyJIT


| Method |      Mean |    Error |   StdDev |
|------- |----------:|---------:|---------:|
| Sha256 | 173.60 us | 3.466 us | 9.604 us |
|    Md5 |  29.95 us | 0.599 us | 1.709 us |

Well... How to read it?

What is the actual meaning of [ Mean | Error | StdDev ] ?

I'm new to this...

I can't find any reference for this..

Anyone can provide a link that explains this?

Upvotes: 18

Views: 6309

Answers (2)

Vikram Reddy
Vikram Reddy

Reputation: 64

All Legends:

  Mean      : Arithmetic mean of all measurements
  Error     : Half of 99.9% confidence interval
  StdDev    : Standard deviation of all measurements
  Median    : Value separating the higher half of all measurements (50th percentile)
  Ratio     : Mean of the ratio distribution ([Current]/[Baseline])
  Rank      : Relative position of current benchmark mean among all benchmarks (Arabic style)
  Gen 0     : GC Generation 0 collects per 1000 operations
  Gen 1     : GC Generation 1 collects per 1000 operations
  Allocated : Allocated memory per single operation (managed only, inclusive, 1KB = 1024B)
  1 us      : 1 Microsecond (0.000001 sec)

Upvotes: 1

Pavel Anikhouski
Pavel Anikhouski

Reputation: 23268

You can get this information from author of BenchmarkDotNet blog post

  Mean      : Arithmetic mean of all measurements
  Error     : Half of 99.9% confidence interval
  StdDev    : Standard deviation of all measurements

Upvotes: 11

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