package rocq-runtime
The Rocq Prover -- Core Binaries and Tools
Install
Dune Dependency
Authors
Maintainers
Sources
rocq-9.0.0.tar.gz
md5=8d522602d23e7a665631826dab9aa92b
sha512=f4f76a6a178e421c99ee7a331a2fd97a06e9c5d0168d7e60c44e3820d8e1a124370ea104ad90c7f87a9a1e9d87b2d0d7d2d387c998feeaed4a75ed04e176a4be
doc/src/rocq-runtime.lib/newProfile.ml.html
Source file newProfile.ml
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(************************************************************************) (* * The Rocq Prover / The Rocq Development Team *) (* v * Copyright INRIA, CNRS and contributors *) (* <O___,, * (see version control and CREDITS file for authors & dates) *) (* \VV/ **************************************************************) (* // * This file is distributed under the terms of the *) (* * GNU Lesser General Public License Version 2.1 *) (* * (see LICENSE file for the text of the license) *) (************************************************************************) module MiniJson = struct type t =[ | `Intlit of string | `String of string | `Assoc of (string * t) list | `List of t list ] (* https://www.ietf.org/rfc/rfc4627.txt *) (* https://github.com/ocaml-community/yojson/blob/4c1d4b52f9e87a4bd3b7f26111e8a4976c1e8676/lib/write.ml#L27 *) let prstring ch s = let buf = Buffer.create (String.length s) in let encode c = match c with | '"' -> Buffer.add_string buf "\\\"" | '\\' -> Buffer.add_string buf "\\\\" | '\b' -> Buffer.add_string buf "\\b" | '\012' -> Buffer.add_string buf "\\f" | '\n' -> Buffer.add_string buf "\\n" | '\r' -> Buffer.add_string buf "\\r" | '\t' -> Buffer.add_string buf "\\t" | '\x00'..'\x1F' | '\x7F' -> Buffer.add_string buf (Printf.sprintf "\\u%04x" (Char.code c)) | _ -> Buffer.add_char buf c in String.iter encode s; Format.fprintf ch "\"%s\"" (Buffer.contents buf) let rec pr ch : t -> _ = function | `String s -> prstring ch s | `Intlit s -> Format.fprintf ch "%s" s | `Assoc elts -> Format.fprintf ch "{ %a }" prrecord elts | `List elts -> Format.fprintf ch "[\n%a\n]" prarray elts and prrecord ch = function | [] -> () | [(x,v)] -> Format.fprintf ch "%a: %a" prstring x pr v | (x,v) :: l -> Format.fprintf ch "%a: %a, %a" prstring x pr v prrecord l and prarray ch = function | [] -> () | [x] -> pr ch x | x :: l -> Format.fprintf ch "%a,\n%a" pr x prarray l let pid = Unix.getpid() let pids = string_of_int pid let base = [("pid", `Intlit pids); ("tid", `Intlit pids)] let duration ~name ~ph ~ts ?args () = let l = ("name", `String name) :: ("ph", `String ph) :: ("ts", `Intlit ts) :: base in let l = match args with | None -> l | Some args -> ("args", `Assoc args) :: l in `Assoc l end type sums = (float * int) CString.Map.t let empty_sums : sums = CString.Map.empty let sums_union a b = CString.Map.union (fun _name (l,cnt) (r,cnt') -> Some (l +. r, cnt + cnt')) a b type accu = { output : Format.formatter option; accumulate : MiniJson.t list ref option; mutable sums : (float * sums) list; } let accu = ref None let is_profiling () = Option.has_some !accu let gettime = Unix.gettimeofday let gettimeopt = function | Some t -> t | None -> gettime() let prtime t = Format.sprintf "%.0f" (t *. 1E6) module Counters = struct (* time is handled separately because it has special status in the output format *) type t = { major_words : float; minor_words : float; major_collections : int; minor_collections : int; instr : System.instruction_count; } let zero = { major_words = 0.; minor_words = 0.; major_collections = 0; minor_collections = 0; instr = Ok 0L; } let get () = let gc = Gc.quick_stat() in { major_words = gc.major_words; minor_words = gc.minor_words; major_collections = gc.major_collections; minor_collections = gc.minor_collections; instr = Instr.read_counter(); } let global_start = get () let (+) a b = { major_words = a.major_words +. b.major_words; minor_words = a.minor_words +. b.minor_words; major_collections = a.major_collections + b.major_collections; minor_collections = a.minor_collections + b.minor_collections; instr = System.instruction_count_add a.instr b.instr; } let (-) b a = { major_words = b.major_words -. a.major_words; minor_words = b.minor_words -. a.minor_words; major_collections = b.major_collections - a.major_collections; minor_collections = b.minor_collections - a.minor_collections; instr = System.instructions_between ~c_start:a.instr ~c_end:b.instr; } let print x = let open Pp in let ppw diff = str (Format.sprintf "%.3G words" diff) in v 0 @@ prlist_with_sep spc (fun x -> hov 0 x) ((str "major words:" ++ spc() ++ ppw x.major_words) :: (str "minor words:" ++ spc() ++ ppw x.minor_words) :: (str "major collections:" ++ spc() ++ int x.major_collections) :: (str "minor collections:" ++ spc() ++ int x.minor_collections) :: match x.instr with | Ok count -> [str "instructions:" ++ spc() ++ str (Int64.to_string count)] | Error _ -> []) let format x = let ppw diff = `String (Format.sprintf "%.3G w" diff) in let ppi i = `Intlit (string_of_int i) in let instr = match x.instr with | Ok count -> [("instr", `Intlit (Int64.to_string count))] | Error _ -> [] in ("major_words",ppw x.major_words) :: ("minor_words", ppw x.minor_words) :: ("major_collect", ppi x.major_collections) :: ("minor_collect", ppi x.minor_collections) :: instr let make_diffs ~start ~stop = format (stop - start) end let global_start_time = gettime () let output_event json ?(last=",") () = let accu = Option.get !accu in accu.output |> Option.iter (fun ch -> Format.fprintf ch "%a%s\n" MiniJson.pr json last); accu.accumulate |> Option.iter (fun out -> out := json :: !out) let duration ~time name ph ?args ?last () = let duration = MiniJson.duration ~name ~ph ~ts:(prtime time) ?args () in output_event duration ?last () let enter_sums ?time () = let accu = Option.get !accu in let time = gettimeopt time in accu.sums <- (time, CString.Map.empty) :: accu.sums let enter ?time name ?args () = let time = gettimeopt time in enter_sums ~time (); duration ~time name "B" ?args () let leave_sums ?time name () = let accu = Option.get !accu in let time = gettimeopt time in match accu.sums with | [] -> assert false | [start,sum] -> accu.sums <- []; sum, time -. start | (start, sum) :: (start', next) :: rest -> let dur = time -. start in let next = CString.Map.update name (function | None -> Some (dur, 1) | Some (dur', cnt) -> Some (dur +. dur', cnt+1)) next in let next = CString.Map.union (fun name' (l,cnt) (r,cnt') -> if String.equal name name' then Some (r,cnt+cnt') else Some (l +. r, cnt+cnt')) sum next in accu. sums <- (start', next) :: rest; sum, dur let rec pptime fmt t = let open Format in function | [] -> assert false | [unit] -> if t >= 1. then fprintf fmt "%03.0f%s" t unit else fprintf fmt "0%s" unit | unit :: nextunit :: rest -> (* float t is time in [unit] *) if t >= 1. then fprintf fmt "%03.0f%s %03.0f%s" t unit (Float.rem (t *. 1_000.) 1_000.) nextunit else pptime fmt (t *. 1_000.) (nextunit :: rest) let pptime fmt t = pptime fmt t ["s";"ms";"us";"ns"] let leave ?time name ?(args=[]) ?last () = let time = gettimeopt time in let sum, dur = leave_sums ~time name () in let sum = CString.Map.bindings sum in let sum = List.sort (fun (_,(t1,_)) (_,(t2,_)) -> Float.compare t2 t1) sum in let sum = List.map (fun (name, (t, cnt)) -> name, `String (Format.asprintf "%a, %d %s" pptime t cnt (CString.plural cnt "call"))) sum in let args = ("subtimes", `Assoc sum) :: args in duration ~time name "E" ~args ?last () (* NB: "process" and "init" are unconditional because they don't go through [profile] and I'm too lazy to make them conditional *) let components = let from_env = Envars.getenv_rocq "_PROFILE_COMPONENTS" in match from_env with | None -> CString.Pred.(full |> remove "unification" |> remove "Conversion") | Some s -> List.fold_left (fun cs c -> CString.Pred.add c cs) CString.Pred.empty (String.split_on_char ',' s) let profile name ?args f () = if not (is_profiling ()) then f () else if CString.Pred.mem name components then begin let args = Option.map (fun f -> f()) args in enter name ?args (); let start = Counters.get () in let v = try f () with e -> let e = Exninfo.capture e in let args = Counters.make_diffs ~start ~stop:(Counters.get()) in leave name ~args (); Exninfo.iraise e in let args = Counters.make_diffs ~start ~stop:(Counters.get()) in leave name ~args (); v end else begin enter_sums (); let v = try f () with e -> let e = Exninfo.capture e in ignore (leave_sums name () : _ * _); Exninfo.iraise e in ignore (leave_sums name () : _ * _); v end let format_header ch = Format.fprintf ch "{ \"traceEvents\": [\n" let ch = Format.fprintf ch "],\n\"displayTimeUnit\": \"us\" }@." type settings = { output : Format.formatter; fname : string; } let init { output; fname; } = let () = assert (not (is_profiling())) in accu := Some { output = Some output; accumulate = None; sums = []; }; format_header output; enter ~time:global_start_time ~args:["fname", `String fname] "process" (); enter ~time:global_start_time "init" (); let args = Counters.(make_diffs ~start:global_start ~stop:(get())) in leave "init" ~args () let pause () = let v = !accu in accu := None; v let resume v = assert (not (is_profiling())); accu := Some v let finish () = match !accu with | None | Some { output = None } -> assert false | Some { output = Some ch } -> let args = Counters.(make_diffs ~start:global_start ~stop:(get())) in leave "process" ~last:"" ~args (); format_footer ch; accu := None let insert_sums sums = let accu = Option.get !accu in match accu.sums with | [] -> assert false | (start, sums') :: rest -> let sums = sums_union sums sums' in accu.sums <- (start, sums) :: rest let insert_results events sums = List.iter (fun e -> output_event e ()) events; insert_sums sums let with_profiling f = let out = ref [] in let this_accu, old_accu = match !accu with | None -> { output = None; accumulate = Some out; sums = [0., empty_sums]; } , None | Some accu -> { output = accu.output; accumulate = Some out; sums = [0., empty_sums]; } , Some accu in let finally () = let out = List.rev !out in let sums = match this_accu.sums with | [_, x] -> x | _ -> assert false in accu := old_accu; let () = match old_accu with | None -> () | Some accu -> (* events have already been output to the formatter if there is one *) accu.accumulate |> Option.iter (fun accumulate -> accumulate := List.rev_append out !accumulate); insert_sums sums in out, sums in accu := Some this_accu; let v = try f () with e -> let e = Exninfo.capture e in ignore (finally() : _ * _); Exninfo.iraise e in let out, sums = finally () in out, sums, v
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