add nested commutator benchmark (#26)

Author: oameye

benchmarks/commutator.jl

@@ -0,0 +1,20 @@
+function nested_commutator(term, n)
+    if n == 0
+        return term
+    else
+        return commutator(term, nested_commutator(term, n - 1))
+    end
+end
+
+function benchmark_commutator!(SUITE)
+    h = FockSpace(:cavity)
+    @qnumbers a::Destroy(h)
+
+    term = a'*a
+    n=5
+
+    SUITE["Micro Benchmarks"]["Nested commutator"] = @benchmarkable nested_commutator(
+        $term, $n
+    ) seconds = 20
+    return nothing
+end

benchmarks/runbenchmarks.jl

@@ -5,9 +5,11 @@ const SUITE = BenchmarkGroup()
 
 include("SW.jl")
 include("numeric_conversion.jl")
+include("commutator.jl")
 
 # benchmark_numeric_conversion!(SUITE) # need a more complex example (this one is too fast)
 benchmark_Schrieffer_Wolf!(SUITE)
+benchmark_commutator!(SUITE)
 
 BenchmarkTools.tune!(SUITE)
 results = BenchmarkTools.run(SUITE; verbose=true)