Create test_timings.jl

Author: dlfivefifty

test/test_timings.jl

@@ -0,0 +1,13 @@
+using InfiniteLinearAlgebra, BandedMatrices, LazyArrays, FillArrays, BenchmarkTools, Test
+import LazyArrays: MemoryLayout, arguments
+
+@testset "Bessel timings" begin
+    A = BandedMatrix(0 => -2*(0:∞)/10.0, 1 => Ones(∞), -1 => Ones(∞))
+    n = 1_000_000
+    V = view(A.data.args[2],:,1:n)
+    b = similar(V)
+    @test @belapsed(copyto!(b,V)) ≤ 0.01
+    @test @belapsed(A.data[:,1:n]) ≤ 0.02
+    @test @belapsed(A[1:n,1:n]) ≤ 0.02
+end
+