test ocaml/ocaml#13861

Author: SkySkimmer

dev/bench/bench.sh

@@ -35,8 +35,8 @@ check_variable () {
 
 : "${coq_pr_number:=}"
 : "${coq_pr_comment_id:=}"
-: "${new_ocaml_version:=4.14.1}"
-: "${old_ocaml_version:=4.14.1}"
+: "${new_ocaml_version:=5.2.0}"
+: "${old_ocaml_version:=5.2.0}"
 : "${new_ocaml_flambda:=0}"
 : "${old_ocaml_flambda:=0}"
 : "${new_coq_repository:=${CI_REPOSITORY_URL:-.}}"
@@ -386,6 +386,10 @@ create_opam() {
     opam var --global jobs=$number_of_processors >/dev/null
     if [ ! -z "$BENCH_DEBUG" ]; then opam config list; fi
 
+    if [ $RUNNER = NEW ]; then
+      opam pin add -y ocaml-base-compiler https://github.com/gasche/ocaml.git#gc-rampup-control-5.2
+    fi
+
     opam repo add -q --this-switch coq-core-dev "$OPAM_COQ_DIR/core-dev"  # For rocq-stdlib
     opam repo add -q --this-switch coq-extra-dev "$OPAM_COQ_DIR/extra-dev"
     opam repo add -q --this-switch coq-released "$OPAM_COQ_DIR/released"

vernac/library.ml

@@ -262,6 +262,7 @@ module Intern = struct
 end
 
 let intern_from_file file =
+  fst @@ Gc.ramp_up @@ fun () ->
   let ch = raw_intern_library file in
   let lsd, digest_lsd = ObjFile.marshal_in_segment ch ~segment:summary_seg in
   let lmd, digest_lmd = ObjFile.marshal_in_segment ch ~segment:library_seg in