unikernel/duniverse/bstr/bench/blit.ml

@@ -0,0 +1,50 @@
+open Bechamel
+open Toolkit
+
+let src = String.make 256 '\x10'
+let cs = Cstruct.create 512
+let bstr = Bstr.create 512
+let bigstringaf = Bigstringaf.create 512
+let cstruct_blit () = Cstruct.blit_from_string src 0 cs 0 256
+let bstr_blit () = Bstr.blit_from_string src ~src_off:0 bstr ~dst_off:0 ~len:256
+
+let bigstringaf_blit () =
+  Bigstringaf.blit_from_string src ~src_off:0 bigstringaf ~dst_off:0 ~len:256
+
+let cstruct_blit = Staged.stage cstruct_blit
+let bstr_blit = Staged.stage bstr_blit
+let bigstringaf_blit = Staged.stage bigstringaf_blit
+let test0 = Test.make ~name:"Cstruct" cstruct_blit
+let test1 = Test.make ~name:"Bstr" bstr_blit
+let test2 = Test.make ~name:"Bigstringaf" bigstringaf_blit
+
+let benchmark () =
+  let bootstrap = 0 and r_square = true and predictors = Measure.[| run |] in
+  let ols = Analyze.ols ~bootstrap ~r_square ~predictors in
+  let instances = Instance.[ monotonic_clock ] in
+  let limit = 2000
+  and stabilize = true
+  and quota = Time.second 1.0
+  and kde = Some 1000 in
+  let cfg = Benchmark.cfg ~limit ~stabilize ~quota ~kde () in
+  let tests =
+    Test.make_grouped ~name:"blit" ~fmt:"%s %s" [ test0; test1; test2 ]
+  in
+  let raw = Benchmark.all cfg instances tests in
+  let res = List.map (fun i -> Analyze.all ols i raw) instances in
+  let res = Analyze.merge ols instances res in
+  (res, raw)
+
+let nothing _ = Ok ()
+let compare = String.compare
+
+let () =
+  let res = benchmark () in
+  let res =
+    let open Bechamel_js in
+    let dst = Channel stdout
+    and x_label = Measure.run
+    and y_label = Measure.label Instance.monotonic_clock in
+    emit ~dst nothing ~compare ~x_label ~y_label res
+  in
+  match res with Ok () -> () | Error (`Msg msg) -> failwith msg