Add CRoaring benchmark in CI

Author: ogxd

.github/workflows/build.yml

@@ -12,6 +12,9 @@ jobs:
     steps:
     - uses: actions/checkout@v3
 
+    - name: lscpu
+      run: lscpu
+
     - name: Setup .NET
       uses: actions/setup-dotnet@v2
       with:
@@ -26,5 +29,8 @@ jobs:
     - name: Test
       run: dotnet test --no-build --verbosity normal --configuration Release
 
-    - name: Benchmark
-      run:  dotnet run -p Equativ.RoaringBitmaps.Benchmarks -c Release -- -f '*Popcnt*'
+    - name: Benchmark Popcnt
+      run:  dotnet run -p Equativ.RoaringBitmaps.Benchmarks -c Release -- -f '*Popcnt*'
+
+    - name: Benchmark against CRoaring
+      run:  dotnet run -p Equativ.RoaringBitmaps.Benchmarks -c Release -- -f '*CRoaring*'

README.md

@@ -33,7 +33,8 @@ Benchmarks include numbers on [Roaring.Net](https://github.com/k-wojcik/Roaring.
 Charts are generated using [chartbenchmark.net](https://chartbenchmark.net/).
 
 ### Macbook pro M1 (ARM64)
-![Performance](Resources/bench_m1.png)
+![Performance](Resources/bench_m1.png)  
+(lower is better)
 
 ### How can this be faster than the C implementation?