NET-933 Modify S1155: Add benchmarks (#4592)

rules/S1155/csharp/rule.adoc

@@ -5,6 +5,14 @@ When you call `Any()`, it clearly communicates the code's intention, which is to
 * if the collection is an `EntityFramework` or other ORM query, calling `Count()` will cause executing a potentially massive SQL query and could put a large overhead on the application database. Calling `Any()` will also connect to the database, but will generate much more efficient SQL.
 * if the collection is part of a LINQ query that contains `Select()` statements that create objects, a large amount of memory could be unnecessarily allocated. Calling `Any()` will be much more efficient because it will execute fewer iterations of the enumerable.
 
+== How to fix it
+
+Prefer using `Any()` to test for emptiness over `Count()`.
+
+=== Code examples
+
+==== Noncompliant code example
+
 [source,csharp,diff-id=1,diff-type=noncompliant]
 ----
 private static bool HasContent(IEnumerable<string> strings)
@@ -23,7 +31,7 @@ private static bool IsEmpty(IEnumerable<string> strings)
 }
 ----
 
-Prefer using `Any()` to test for emptiness over `Count()`.
+==== Compliant solution
 
 [source,csharp,diff-id=1,diff-type=compliant]
 ----
@@ -43,6 +51,59 @@ private static bool IsEmpty(IEnumerable<string> strings)
 }
 ----
 
+== Resources
+
+=== Benchmarks
+
+[options="header"]
+|===
+| Method | Runtime              | Mean          | Standard Deviation
+| Count  | .NET 9.0             |  2,841.003 ns | 266.0238 ns
+| Any    | .NET 9.0             |      1.749 ns |   0.1242 ns
+| Count  | .NET Framework 4.8.1 | 71,125.275 ns | 731.0382 ns
+| Any    | .NET Framework 4.8.1 |     31.774 ns |   0.3196 ns
+|===
+
+==== Glossary
+
+* https://en.wikipedia.org/wiki/Arithmetic_mean[Mean]
+* https://en.wikipedia.org/wiki/Standard_deviation[Standard Deviation]
+
+The results were generated by running the following snippet with https://github.com/dotnet/BenchmarkDotNet[BenchmarkDotNet]:
+
+[source,csharp]
+----
+private IEnumerable<int> collection;
+
+public const int N = 10_000;
+
+[GlobalSetup]
+public void GlobalSetup()
+{
+    collection = Enumerable.Range(0, N).Select(x => N - x);
+}
+
+[Benchmark(Baseline = true)]
+public bool Count() =>
+    collection.Count() > 0;
+
+[Benchmark]
+public bool Any() =>
+    collection.Any();
+----
+
+Hardware Configuration:
+
+[source]
+----
+BenchmarkDotNet v0.14.0, Windows 10 (10.0.19045.5247/22H2/2022Update)
+12th Gen Intel Core i7-12800H, 1 CPU, 20 logical and 14 physical cores
+  [Host]               : .NET Framework 4.8.1 (4.8.9282.0), X64 RyuJIT VectorSize=256
+  .NET 9.0             : .NET 9.0.0 (9.0.24.52809), X64 RyuJIT AVX2
+  .NET Framework 4.8.1 : .NET Framework 4.8.1 (4.8.9282.0), X64 RyuJIT VectorSize=256
+----
+
+
 ifdef::env-github,rspecator-view[]
 
 '''
@@ -101,7 +162,7 @@ Added the `Count() == 0` to the description and extended the code samples
 \[~ann.campbell.2] You are right, I removed the comparison to `0`.
 
 === on 27 May 2015, 14:04:31 Ann Campbell wrote:
-Thanks [~tamas.vajk]. I've merged the code blocks into one block each for Compliant and Noncompliant 
+Thanks [~tamas.vajk]. I've merged the code blocks into one block each for Compliant and Noncompliant
 
 === on 1 Jun 2015, 14:30:42 Ann Campbell wrote:
 I've updated the examples with `List<string>`. Please double-check me.