add benchmarks, closes #23

Author: sjkelly

bench/.gitignore

@@ -0,0 +1 @@
+params.json

bench/benchmark.jl

@@ -0,0 +1,38 @@
+using BenchmarkTools
+using Meshing
+using GeometryTypes
+
+# Define a parent BenchmarkGroup to contain our suite
+const suite = BenchmarkGroup()
+
+println("Benchmarking Meshing.jl...")
+
+algos = [MarchingCubes(), MarchingTetrahedra(), NaiveSurfaceNets()]
+
+torus = SignedDistanceField(HyperRectangle(Vec(-2,-2,-2.),Vec(4,4,4.)),0.05) do v
+    (sqrt(v[1]^2+v[2]^2)-0.5)^2 + v[3]^2 - 0.25 # torus
+end
+
+for algo in algos
+    suite[string(typeof(algo))] = @benchmarkable HomogenousMesh(torus, $algo)
+end
+
+# If a cache of tuned parameters already exists, use it, otherwise, tune and cache
+# the benchmark parameters. Reusing cached parameters is faster and more reliable
+# than re-tuning `suite` every time the file is included.
+paramspath = joinpath(dirname(@__FILE__), "params.json")
+
+if isfile(paramspath)
+    loadparams!(suite, BenchmarkTools.load(paramspath)[1], :evals);
+else
+    tune!(suite)
+    BenchmarkTools.save(paramspath, params(suite));
+end
+
+results = run(suite)
+for trial in results
+    ctx = IOContext(stdout, :verbose => true, :compact => false)
+    println(ctx)
+    println(ctx, trial.first)
+    println(ctx, trial.second)
+end

bench/profile.jl

@@ -0,0 +1,18 @@
+using Meshing
+using GeometryTypes
+using Juno
+using Profile
+
+
+algo = NaiveSurfaceNets()
+
+torus = SignedDistanceField(HyperRectangle(Vec(-2,-2,-2.),Vec(4,4,4.)),0.05) do v
+    (sqrt(v[1]^2+v[2]^2)-0.5)^2 + v[3]^2 - 0.25 # torus
+end
+
+m2 = HomogenousMesh(torus, algo)
+
+Profile.clear()
+Juno.@profiler HomogenousMesh(torus, algo)
+
+Juno.profiler()