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|
(* TEST
flags = "-g";
{
reference = "${test_source_directory}/callstacks.flat-float-array.reference";
flat-float-array;
}{
reference = "${test_source_directory}/callstacks.no-flat-float-array.reference";
no-flat-float-array;
}
*)
module MP = Gc.Memprof
let alloc_list_literal () =
ignore (Sys.opaque_identity [Sys.opaque_identity 1])
let alloc_pair () =
ignore (Sys.opaque_identity (Sys.opaque_identity 1, Sys.opaque_identity 2))
type record = { a : int; b : int }
let alloc_record () =
ignore (Sys.opaque_identity
{a = Sys.opaque_identity 1; b = Sys.opaque_identity 2})
let alloc_some () =
ignore (Sys.opaque_identity (Some (Sys.opaque_identity 2)))
let alloc_array_literal () =
ignore (Sys.opaque_identity [|Sys.opaque_identity 1|])
let alloc_float_array_literal () =
ignore (Sys.opaque_identity
[|Sys.opaque_identity 1.; Sys.opaque_identity 2.|])
let[@inline never] do_alloc_unknown_array_literal x =
Sys.opaque_identity [|x|]
let alloc_unknown_array_literal () =
ignore (Sys.opaque_identity (do_alloc_unknown_array_literal 1.))
let alloc_small_array () =
ignore (Sys.opaque_identity (Array.make 10 (Sys.opaque_identity 1)))
let alloc_large_array () =
ignore (Sys.opaque_identity (Array.make 100000 (Sys.opaque_identity 1)))
let alloc_closure () =
let x = Sys.opaque_identity 1 in
ignore (Sys.opaque_identity (fun () -> x))
let floatarray = [| 1.; 2. |]
let[@inline never] get0 a = a.(0)
let getfloatfield () =
ignore (Sys.opaque_identity (get0 floatarray))
let marshalled =
Marshal.to_string [Sys.opaque_identity 1] []
let alloc_unmarshal () =
ignore (Sys.opaque_identity
((Marshal.from_string [@inlined never]) (Sys.opaque_identity marshalled) 0))
let alloc_ref () =
ignore (Sys.opaque_identity (ref (Sys.opaque_identity 1)))
let fl = 1.
let[@inline never] prod_floats a b = a *. b
let alloc_boxedfloat () =
ignore (Sys.opaque_identity (prod_floats fl fl))
let allocators =
[alloc_list_literal; alloc_pair; alloc_record; alloc_some;
alloc_array_literal; alloc_float_array_literal; alloc_unknown_array_literal;
alloc_small_array; alloc_large_array; alloc_closure;
getfloatfield; alloc_unmarshal; alloc_ref; alloc_boxedfloat]
let test alloc =
Printf.printf "-----------\n%!";
let callstack = ref None in
let _:MP.t = MP.start ~callstack_size:10 ~sampling_rate:1.
{ MP.null_tracker with
alloc_minor = (fun info ->
callstack := Some info.callstack;
None
);
alloc_major = (fun info ->
callstack := Some info.callstack;
None
);
}
in
alloc ();
MP.stop ();
match !callstack with
| None -> Printf.printf "No callstack\n%!";
| Some cs -> Printexc.print_raw_backtrace stdout cs
let () =
List.iter test allocators
|
