diff --git a/infer/man/man1/infer-analyze.txt b/infer/man/man1/infer-analyze.txt
index 7190c5d51..94f4ad9e4 100644
--- a/infer/man/man1/infer-analyze.txt
+++ b/infer/man/man1/infer-analyze.txt
@@ -201,7 +201,7 @@ OPTIONS
            (Conversely: --no-loop-hoisting-only)
 
        --perf-profiler-data-file file
-           Specify the file containing perf profiler data to read
+           DEPRECATED: Specify the file containing perf profiler data to read
 
        --print-active-checkers
            Activates: Print the active checkers before starting the analysis
diff --git a/infer/man/man1/infer-full.txt b/infer/man/man1/infer-full.txt
index 9dd58aa63..9e8d3fb9d 100644
--- a/infer/man/man1/infer-full.txt
+++ b/infer/man/man1/infer-full.txt
@@ -421,13 +421,10 @@ OPTIONS
              ERADICATE_UNVETTED_THIRD_PARTY_IN_NULLSAFE (enabled by
            default),
              EXECUTION_TIME_COMPLEXITY_INCREASE (enabled by default),
-             EXECUTION_TIME_COMPLEXITY_INCREASE_COLD_START (enabled by
-           default),
              EXECUTION_TIME_COMPLEXITY_INCREASE_UI_THREAD (enabled by
            default),
              EXECUTION_TIME_UNREACHABLE_AT_EXIT (disabled by default),
              EXPENSIVE_EXECUTION_TIME (disabled by default),
-             EXPENSIVE_EXECUTION_TIME_COLD_START (disabled by default),
              EXPENSIVE_EXECUTION_TIME_UI_THREAD (disabled by default),
              EXPENSIVE_LOOP_INVARIANT_CALL (enabled by default),
              EXPOSED_INSECURE_INTENT_HANDLING (enabled by default),
@@ -782,7 +779,7 @@ OPTIONS
            See also infer-analyze(1).
 
        --perf-profiler-data-file file
-           Specify the file containing perf profiler data to read       
+           DEPRECATED: Specify the file containing perf profiler data to read       
     See also infer-analyze(1).
 
        --print-active-checkers
diff --git a/infer/man/man1/infer-report.txt b/infer/man/man1/infer-report.txt
index 64cf1bca9..7c925e112 100644
--- a/infer/man/man1/infer-report.txt
+++ b/infer/man/man1/infer-report.txt
@@ -151,13 +151,10 @@ OPTIONS
              ERADICATE_UNVETTED_THIRD_PARTY_IN_NULLSAFE (enabled by
            default),
              EXECUTION_TIME_COMPLEXITY_INCREASE (enabled by default),
-             EXECUTION_TIME_COMPLEXITY_INCREASE_COLD_START (enabled by
-           default),
              EXECUTION_TIME_COMPLEXITY_INCREASE_UI_THREAD (enabled by
            default),
              EXECUTION_TIME_UNREACHABLE_AT_EXIT (disabled by default),
              EXPENSIVE_EXECUTION_TIME (disabled by default),
-             EXPENSIVE_EXECUTION_TIME_COLD_START (disabled by default),
              EXPENSIVE_EXECUTION_TIME_UI_THREAD (disabled by default),
              EXPENSIVE_LOOP_INVARIANT_CALL (enabled by default),
              EXPOSED_INSECURE_INTENT_HANDLING (enabled by default),
diff --git a/infer/man/man1/infer.txt b/infer/man/man1/infer.txt
index d8c720d57..00b5056fd 100644
--- a/infer/man/man1/infer.txt
+++ b/infer/man/man1/infer.txt
@@ -421,13 +421,10 @@ OPTIONS
              ERADICATE_UNVETTED_THIRD_PARTY_IN_NULLSAFE (enabled by
            default),
              EXECUTION_TIME_COMPLEXITY_INCREASE (enabled by default),
-             EXECUTION_TIME_COMPLEXITY_INCREASE_COLD_START (enabled by
-           default),
              EXECUTION_TIME_COMPLEXITY_INCREASE_UI_THREAD (enabled by
            default),
              EXECUTION_TIME_UNREACHABLE_AT_EXIT (disabled by default),
              EXPENSIVE_EXECUTION_TIME (disabled by default),
-             EXPENSIVE_EXECUTION_TIME_COLD_START (disabled by default),
              EXPENSIVE_EXECUTION_TIME_UI_THREAD (disabled by default),
              EXPENSIVE_LOOP_INVARIANT_CALL (enabled by default),
              EXPOSED_INSECURE_INTENT_HANDLING (enabled by default),
@@ -782,7 +779,7 @@ OPTIONS
            See also infer-analyze(1).
 
        --perf-profiler-data-file file
-           Specify the file containing perf profiler data to read       
+           DEPRECATED: Specify the file containing perf profiler data to read       
     See also infer-analyze(1).
 
        --print-active-checkers
diff --git a/infer/src/IR/ExternalPerfData.ml b/infer/src/IR/ExternalPerfData.ml
deleted file mode 100644
index 9d9de2911..000000000
--- a/infer/src/IR/ExternalPerfData.ml
+++ /dev/null
@@ -1,100 +0,0 @@
-(*
- * Copyright (c) Facebook, Inc. and its affiliates.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
- *)
-open! IStd
-module L = Logging
-
-module PerfProfilerDataMap = Caml.Map.Make (struct
-  type t = Procname.t
-
-  let compare = Procname.compare
-end)
-
-let global_perf_profiler_data : Perf_profiler_t.perf_profiler_item PerfProfilerDataMap.t ref =
-  ref PerfProfilerDataMap.empty
-
-
-let split_class_method_name =
-  let class_sep = String.Search_pattern.create "::" in
-  fun qualified_method_name ->
-    match String.Search_pattern.index class_sep ~in_:qualified_method_name with
-    | Some class_sep_pos ->
-        let class_name =
-          String.sub qualified_method_name ~pos:0 ~len:class_sep_pos
-          |> String.tr ~target:'/' ~replacement:'.'
-        in
-        let method_name =
-          let prefix_len = class_sep_pos + 2 in
-          String.sub qualified_method_name ~pos:prefix_len
-            ~len:(String.length qualified_method_name - prefix_len)
-        in
-        Some (class_name, method_name)
-    | _ ->
-        None
-
-
-let pp_perf_profiler_item itm =
-  let open Perf_profiler_t in
-  L.(debug Analysis Medium)
-    "@\n\n\
-    \               [Perf Profiler Log] Function: '%s'  @\n\
-    \               count trace id = %i @\n\
-    \               sum inclusive cpu time = %f@\n\
-    \               avg inclusive time = %f @\n\
-    \               sum exclusive cpu time = %f @\n\
-    \               avg exclusive_time = %f  @\n"
-    itm.function_name itm.approx_count_trace_id itm.sum_inclusive_cpu_time
-    itm.avg_inclusive_cpu_time_ms itm.sum_exclusive_cpu_time itm.avg_exclusive_cpu_time_ms
-
-
-let _read_file_perf_data fname =
-  let perf_profiler_data_str =
-    match Utils.read_file fname with
-    | Ok l ->
-        List.map ~f:Perf_profiler_j.perf_profiler_of_string l
-    | Error error ->
-        L.user_error "Failed to read file '%s': %s@." fname error ;
-        []
-  in
-  let do_item itm =
-    pp_perf_profiler_item itm ;
-    match split_class_method_name itm.Perf_profiler_t.function_name with
-    | Some (classname, methodname) ->
-        let procname = JProcname.make_void_signature_procname ~classname ~methodname in
-        global_perf_profiler_data := PerfProfilerDataMap.add procname itm !global_perf_profiler_data
-    | _ ->
-        ()
-  in
-  List.iter ~f:(fun items -> List.iter ~f:do_item items) perf_profiler_data_str
-
-
-let read_file_flag = ref false
-
-let prepare_perf_data fname =
-  if not !read_file_flag then (
-    _read_file_perf_data fname ;
-    read_file_flag := true ) ;
-  if PerfProfilerDataMap.is_empty !global_perf_profiler_data then
-    L.(debug Analysis Medium) "@\n\n[Perf Profiler Log] WARNING: EMPTY PERF PROFILER DATA@\n"
-
-
-let in_profiler_data_map key =
-  match Config.perf_profiler_data_file with
-  | Some fname ->
-      prepare_perf_data fname ;
-      PerfProfilerDataMap.mem key !global_perf_profiler_data
-  | _ ->
-      false
-
-
-let get_avg_inclusive_time_opt key =
-  let open IOption.Let_syntax in
-  let* fname = Config.perf_profiler_data_file in
-  prepare_perf_data fname ;
-  let+ {Perf_profiler_t.avg_inclusive_cpu_time_ms} =
-    PerfProfilerDataMap.find_opt key !global_perf_profiler_data
-  in
-  avg_inclusive_cpu_time_ms
diff --git a/infer/src/IR/ExternalPerfData.mli b/infer/src/IR/ExternalPerfData.mli
deleted file mode 100644
index 2e2de1250..000000000
--- a/infer/src/IR/ExternalPerfData.mli
+++ /dev/null
@@ -1,12 +0,0 @@
-(*
- * Copyright (c) Facebook, Inc. and its affiliates.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
- *)
-
-open! IStd
-
-val in_profiler_data_map : Procname.t -> bool
-
-val get_avg_inclusive_time_opt : Procname.t -> float option
diff --git a/infer/src/IR/JProcname.ml b/infer/src/IR/JProcname.ml
index 1af8b6bdf..d2f03539a 100644
--- a/infer/src/IR/JProcname.ml
+++ b/infer/src/IR/JProcname.ml
@@ -274,8 +274,3 @@ let create_procname ~classname ~methodname:method_name ~signature ~use_signature
   in
   Procname.make_java ~class_name ~return_type ~method_name ~parameters
     ~kind:Procname.Java.Non_Static ()
-
-
-let make_void_signature_procname ~classname ~methodname =
-  let signature = JNI.void_method_with_no_arguments in
-  create_procname ~signature ~classname ~methodname ~use_signature:true
diff --git a/infer/src/IR/JProcname.mli b/infer/src/IR/JProcname.mli
index e6bc5e9e8..18dfbad66 100644
--- a/infer/src/IR/JProcname.mli
+++ b/infer/src/IR/JProcname.mli
@@ -41,5 +41,3 @@ end
 
 val create_procname :
   classname:string -> methodname:string -> signature:string -> use_signature:bool -> Procname.t
-
-val make_void_signature_procname : classname:string -> methodname:string -> Procname.t
diff --git a/infer/src/atd/dune b/infer/src/atd/dune
index 55b2b59ba..ca440d73b 100644
--- a/infer/src/atd/dune
+++ b/infer/src/atd/dune
@@ -56,19 +56,6 @@
  (deps    java_method_decl.atd)
  (action  (run atdgen -t %{deps})))
 
-; ATD for perf_profiler
-(rule
- (targets perf_profiler_j.ml
-          perf_profiler_j.mli)
- (deps    perf_profiler.atd)
- (action  (run atdgen -j -j-std %{deps})))
-
-(rule
- (targets perf_profiler_t.ml
-          perf_profiler_t.mli)
- (deps    perf_profiler.atd)
- (action  (run atdgen -t %{deps})))
-
 ; ATD for java_profiler_samples
 (rule
  (targets java_profiler_samples_j.ml
diff --git a/infer/src/atd/perf_profiler.atd b/infer/src/atd/perf_profiler.atd
deleted file mode 100644
index 6c7613989..000000000
--- a/infer/src/atd/perf_profiler.atd
+++ /dev/null
@@ -1,17 +0,0 @@
-(*
- * Copyright (c) Facebook, Inc. and its affiliates.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
- *)
-
-type perf_profiler_item = {
-    function_name: string;
-    approx_count_trace_id: int; 
-    sum_inclusive_cpu_time: float;
-    avg_inclusive_cpu_time_ms: float;
-    sum_exclusive_cpu_time: float; 
-    avg_exclusive_cpu_time_ms: float;
-}
-
-type perf_profiler = perf_profiler_item list
diff --git a/infer/src/base/Config.ml b/infer/src/base/Config.ml
index a33af2ac3..01c4b7710 100644
--- a/infer/src/base/Config.ml
+++ b/infer/src/base/Config.ml
@@ -1451,10 +1451,10 @@ and _log_skipped =
      machine-readable format"
 
 
-and perf_profiler_data_file =
+and[@warning "-32"] perf_profiler_data_file =
   CLOpt.mk_path_opt ~long:"perf-profiler-data-file"
     ~in_help:InferCommand.[(Analyze, manual_generic)]
-    ~meta:"file" "Specify the file containing perf profiler data to read"
+    ~meta:"file" "DEPRECATED: Specify the file containing perf profiler data to read"
 
 
 and linter =
@@ -2775,8 +2775,6 @@ and load_average =
   match !load_average with None when !buck -> Some (float_of_int ncpu) | _ -> !load_average
 
 
-and perf_profiler_data_file = !perf_profiler_data_file
-
 and max_nesting = !max_nesting
 
 and method_decls_info = !method_decls_info
diff --git a/infer/src/base/Config.mli b/infer/src/base/Config.mli
index b714de432..eb5f4fd32 100644
--- a/infer/src/base/Config.mli
+++ b/infer/src/base/Config.mli
@@ -409,8 +409,6 @@ val only_cheap_debug : bool
 
 val only_footprint : bool
 
-val perf_profiler_data_file : string option
-
 val print_active_checkers : bool
 
 val print_builtins : bool
diff --git a/infer/src/base/CostIssues.ml b/infer/src/base/CostIssues.ml
index 73c8f0248..319e45435 100644
--- a/infer/src/base/CostIssues.ml
+++ b/infer/src/base/CostIssues.ml
@@ -10,8 +10,8 @@ type issue_spec =
   { extract_cost_f: Jsonbug_t.cost_item -> Jsonbug_t.cost_info
   ; name: string
   ; threshold: int option
-  ; complexity_increase_issue: is_on_cold_start:bool -> is_on_ui_thread:bool -> IssueType.t
-  ; expensive_issue: is_on_cold_start:bool -> is_on_ui_thread:bool -> IssueType.t
+  ; complexity_increase_issue: is_on_ui_thread:bool -> IssueType.t
+  ; expensive_issue: is_on_ui_thread:bool -> IssueType.t
   ; unreachable_issue: IssueType.t
   ; infinite_issue: IssueType.t
   ; top_and_unreachable: bool }
@@ -40,11 +40,9 @@ let enabled_cost_map =
         ; threshold= (if Config.use_cost_threshold then CostKind.to_threshold kind else None)
         ; extract_cost_f= (fun c -> CostKind.to_json_cost_info c kind)
         ; complexity_increase_issue=
-            (fun ~is_on_cold_start ~is_on_ui_thread ->
-              IssueType.complexity_increase ~kind ~is_on_cold_start ~is_on_ui_thread )
+            (fun ~is_on_ui_thread -> IssueType.complexity_increase ~kind ~is_on_ui_thread)
         ; expensive_issue=
-            (fun ~is_on_cold_start ~is_on_ui_thread ->
-              IssueType.expensive_cost_call ~kind ~is_on_cold_start ~is_on_ui_thread )
+            (fun ~is_on_ui_thread -> IssueType.expensive_cost_call ~kind ~is_on_ui_thread)
         ; unreachable_issue= IssueType.unreachable_cost_call ~kind
         ; infinite_issue= IssueType.infinite_cost_call ~kind
         ; top_and_unreachable }
diff --git a/infer/src/base/CostIssues.mli b/infer/src/base/CostIssues.mli
index a0015fa9d..8aa60fa25 100644
--- a/infer/src/base/CostIssues.mli
+++ b/infer/src/base/CostIssues.mli
@@ -11,8 +11,8 @@ type issue_spec =
   { extract_cost_f: Jsonbug_t.cost_item -> Jsonbug_t.cost_info
   ; name: string
   ; threshold: int option
-  ; complexity_increase_issue: is_on_cold_start:bool -> is_on_ui_thread:bool -> IssueType.t
-  ; expensive_issue: is_on_cold_start:bool -> is_on_ui_thread:bool -> IssueType.t
+  ; complexity_increase_issue: is_on_ui_thread:bool -> IssueType.t
+  ; expensive_issue: is_on_ui_thread:bool -> IssueType.t
   ; unreachable_issue: IssueType.t
   ; infinite_issue: IssueType.t
   ; top_and_unreachable: bool }
diff --git a/infer/src/base/IssueType.ml b/infer/src/base/IssueType.ml
index 5569ccc36..b39ea481d 100644
--- a/infer/src/base/IssueType.ml
+++ b/infer/src/base/IssueType.ml
@@ -24,7 +24,6 @@ module Unsafe : sig
 
   val register_from_cost_string :
        ?enabled:bool
-    -> ?is_on_cold_start:bool
     -> ?is_on_ui_thread:bool
     -> kind:CostKind.t
     -> (string -> string, Format.formatter, unit, string) format4
@@ -88,14 +87,10 @@ end = struct
 
 
   (** cost issues are already registered below.*)
-  let register_from_cost_string ?(enabled = true) ?(is_on_cold_start = false)
-      ?(is_on_ui_thread = false) ~(kind : CostKind.t) s =
+  let register_from_cost_string ?(enabled = true) ?(is_on_ui_thread = false) ~(kind : CostKind.t) s
+      =
     let issue_type_base = Format.asprintf s (CostKind.to_issue_string kind) in
-    let issue_type =
-      if is_on_ui_thread then issue_type_base ^ "_UI_THREAD"
-      else if is_on_cold_start then issue_type_base ^ "_COLD_START"
-      else issue_type_base
-    in
+    let issue_type = if is_on_ui_thread then issue_type_base ^ "_UI_THREAD" else issue_type_base in
     register_from_string ~enabled issue_type
 
 
@@ -325,8 +320,8 @@ let eradicate_meta_class_can_be_nullsafe =
       (* Should be enabled for special integrations *) ~enabled:false
 
 
-let expensive_cost_call ~kind ~is_on_cold_start ~is_on_ui_thread =
-  register_from_cost_string ~enabled:false ~kind ~is_on_cold_start ~is_on_ui_thread "EXPENSIVE_%s"
+let expensive_cost_call ~kind ~is_on_ui_thread =
+  register_from_cost_string ~enabled:false ~kind ~is_on_ui_thread "EXPENSIVE_%s"
 
 
 let exposed_insecure_intent_handling = register_from_string "EXPOSED_INSECURE_INTENT_HANDLING"
@@ -480,8 +475,8 @@ let symexec_memory_error =
 
 let thread_safety_violation = register_from_string "THREAD_SAFETY_VIOLATION"
 
-let complexity_increase ~kind ~is_on_cold_start ~is_on_ui_thread =
-  register_from_cost_string ~kind ~is_on_cold_start ~is_on_ui_thread "%s_COMPLEXITY_INCREASE"
+let complexity_increase ~kind ~is_on_ui_thread =
+  register_from_cost_string ~kind ~is_on_ui_thread "%s_COMPLEXITY_INCREASE"
 
 
 let topl_error = register_from_string "TOPL_ERROR"
@@ -541,10 +536,9 @@ let unreachable_cost_call ~kind =
 (* register enabled cost issues *)
 let () =
   List.iter CostKind.enabled_cost_kinds ~f:(fun CostKind.{kind} ->
-      List.iter [true; false] ~f:(fun is_on_cold_start ->
-          List.iter [true; false] ~f:(fun is_on_ui_thread ->
-              let _ = unreachable_cost_call ~kind in
-              let _ = expensive_cost_call ~kind ~is_on_cold_start ~is_on_ui_thread in
-              let _ = infinite_cost_call ~kind in
-              let _ = complexity_increase ~kind ~is_on_cold_start ~is_on_ui_thread in
-              () ) ) )
+      List.iter [true; false] ~f:(fun is_on_ui_thread ->
+          let _ = unreachable_cost_call ~kind in
+          let _ = expensive_cost_call ~kind ~is_on_ui_thread in
+          let _ = infinite_cost_call ~kind in
+          let _ = complexity_increase ~kind ~is_on_ui_thread in
+          () ) )
diff --git a/infer/src/base/IssueType.mli b/infer/src/base/IssueType.mli
index d430f2ea2..c15a72db5 100644
--- a/infer/src/base/IssueType.mli
+++ b/infer/src/base/IssueType.mli
@@ -103,7 +103,7 @@ val codequery : t
 
 val comparing_floats_for_equality : t
 
-val complexity_increase : kind:CostKind.t -> is_on_cold_start:bool -> is_on_ui_thread:bool -> t
+val complexity_increase : kind:CostKind.t -> is_on_ui_thread:bool -> t
 
 val component_factory_function : t
 
@@ -180,7 +180,7 @@ val eradicate_meta_class_needs_improvement : t
 
 val eradicate_meta_class_is_nullsafe : t
 
-val expensive_cost_call : kind:CostKind.t -> is_on_cold_start:bool -> is_on_ui_thread:bool -> t
+val expensive_cost_call : kind:CostKind.t -> is_on_ui_thread:bool -> t
 
 val exposed_insecure_intent_handling : t
 
diff --git a/infer/src/cost/cost.ml b/infer/src/cost/cost.ml
index 6b5e9eb20..53db68ffa 100644
--- a/infer/src/cost/cost.ml
+++ b/infer/src/cost/cost.ml
@@ -240,8 +240,7 @@ module Check = struct
       ~threshold ~is_on_ui_thread =
     let report_issue_type =
       L.(debug Analysis Medium) "@\n\n++++++ Checking error type for %a **** @\n" Procname.pp pname ;
-      let is_on_cold_start = ExternalPerfData.in_profiler_data_map pname in
-      expensive_issue ~is_on_cold_start ~is_on_ui_thread
+      expensive_issue ~is_on_ui_thread
     in
     let bigO_str =
       Format.asprintf ", %a"
diff --git a/infer/src/inferunit.ml b/infer/src/inferunit.ml
index c50670e01..21541a107 100644
--- a/infer/src/inferunit.ml
+++ b/infer/src/inferunit.ml
@@ -40,7 +40,6 @@ let () =
         ; LivenessTests.tests
         ; LRUHashtblTests.tests
         ; MaximumSharingTests.tests
-        ; PerfProfilerATDParserTest.tests
         ; ProcCfgTests.tests
         ; RestartSchedulerTests.tests
         ; SchedulerTests.tests
diff --git a/infer/src/integration/Differential.ml b/infer/src/integration/Differential.ml
index d0a213045..7ad684ea3 100644
--- a/infer/src/integration/Differential.ml
+++ b/infer/src/integration/Differential.ml
@@ -212,23 +212,11 @@ let issue_of_cost kind CostIssues.{complexity_increase_issue; unreachable_issue;
   let file = cost_info.Jsonbug_t.loc.file in
   let method_name = cost_info.Jsonbug_t.procedure_name in
   let is_on_ui_thread = cost_info.Jsonbug_t.is_on_ui_thread in
-  let class_name =
-    match Str.split (Str.regexp_string ("." ^ method_name)) cost_info.Jsonbug_t.procedure_id with
-    | [class_name; _] ->
-        class_name
-    | _ ->
-        ""
-  in
-  let procname =
-    JProcname.make_void_signature_procname ~classname:class_name ~methodname:method_name
-  in
   let source_file = SourceFile.create ~warn_on_error:false file in
   let issue_type =
     if CostItem.is_top curr_item then infinite_issue
     else if CostItem.is_unreachable curr_item then unreachable_issue
-    else
-      let is_on_cold_start = ExternalPerfData.in_profiler_data_map procname in
-      complexity_increase_issue ~is_on_cold_start ~is_on_ui_thread
+    else complexity_increase_issue ~is_on_ui_thread
   in
   if (not Config.filtering) || issue_type.IssueType.enabled then
     let qualifier =
@@ -246,20 +234,6 @@ let issue_of_cost kind CostIssues.{complexity_increase_issue; unreachable_issue;
             "Please make sure this is an expected change. You can inspect the trace to understand \
              the complexity increase:"
       in
-      let cold_start_or_ui_msg =
-        let common_msg = "It is very important to avoid potential regressions in this phase." in
-        if is_on_ui_thread then
-          Format.asprintf "%a %s" MarkupFormatter.pp_bold
-            "This function is called on the UI Thread!" common_msg
-        else
-          Option.value_map (ExternalPerfData.get_avg_inclusive_time_opt procname) ~default:""
-            ~f:(fun avg_inclusive_time ->
-              let pp_avg_inclusive_time f =
-                Format.fprintf f "(avg inclusive CPU time was %.1f ms)" avg_inclusive_time
-              in
-              Format.asprintf "%a %t %s" MarkupFormatter.pp_bold
-                "This function is called during cold start!" pp_avg_inclusive_time common_msg )
-      in
       let msg f =
         (* Java Only *)
         if String.equal method_name Procname.Java.constructor_method_name then
@@ -269,7 +243,7 @@ let issue_of_cost kind CostIssues.{complexity_increase_issue; unreachable_issue;
         else
           Format.fprintf f "%a" (MarkupFormatter.wrap_monospaced Format.pp_print_string) method_name
       in
-      Format.asprintf "%s of %t has %a from %a to %a. %s %a"
+      Format.asprintf "%s of %t has %a from %a to %a. %a"
         (CostKind.to_complexity_string kind)
         msg
         (MarkupFormatter.wrap_bold pp_delta)
@@ -277,7 +251,7 @@ let issue_of_cost kind CostIssues.{complexity_increase_issue; unreachable_issue;
         (MarkupFormatter.wrap_monospaced (CostItem.pp_degree ~only_bigO:true))
         prev_item
         (MarkupFormatter.wrap_monospaced (CostItem.pp_degree ~only_bigO:true))
-        curr_item cold_start_or_ui_msg pp_extra_msg ()
+        curr_item pp_extra_msg ()
     in
     let line = cost_info.Jsonbug_t.loc.lnum in
     let column = cost_info.Jsonbug_t.loc.cnum in
diff --git a/infer/src/unit/PerfProfilerATDParserTest.ml b/infer/src/unit/PerfProfilerATDParserTest.ml
deleted file mode 100644
index 188d9bfa7..000000000
--- a/infer/src/unit/PerfProfilerATDParserTest.ml
+++ /dev/null
@@ -1,35 +0,0 @@
-(*
- * Copyright (c) Facebook, Inc. and its affiliates.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
- *)
-
-open! IStd
-open OUnit2
-
-let test_parser =
-  let create_test input expected _ =
-    let found = Perf_profiler_j.perf_profiler_of_string input in
-    assert_equal expected found
-  in
-  [ ("test_parser_1", "[]", [])
-  ; ( "test_parser_2"
-    , {|[{"function_name":"pkg/cls::\u003Cclinit>",
-         "approx_count_trace_id": 2,
-         "sum_inclusive_cpu_time": 34.4324324,
-          "avg_inclusive_cpu_time_ms":123.01234567899,
-          "sum_exclusive_cpu_time": 17.4543543,
-          "avg_exclusive_cpu_time_ms":9.8765432123456
-          }]|}
-    , [ { Perf_profiler_t.function_name= "pkg/cls::<clinit>"
-        ; approx_count_trace_id= 2
-        ; sum_inclusive_cpu_time= 34.4324324
-        ; avg_inclusive_cpu_time_ms= 123.01234567899
-        ; sum_exclusive_cpu_time= 17.4543543
-        ; avg_exclusive_cpu_time_ms= 9.8765432123456 } ] ) ]
-  |> List.map ~f:(fun (name, test_input, expected_output) ->
-         name >:: create_test test_input expected_output )
-
-
-let tests = "java_profiler_samples" >::: test_parser
diff --git a/infer/tests/build_systems/differential_of_costs_report/Makefile b/infer/tests/build_systems/differential_of_costs_report/Makefile
index ecd59c5db..154432122 100644
--- a/infer/tests/build_systems/differential_of_costs_report/Makefile
+++ b/infer/tests/build_systems/differential_of_costs_report/Makefile
@@ -6,7 +6,7 @@
 # E2E test for differential of costs
 
 TESTS_DIR = ../..
-SOURCES = src/DiffExample.java.current src/DiffExample.java.previous src/DiffExampleColdStart.java.current src/DiffExampleColdStart.java.previous  src/DiffExampleUIThread.java.current src/DiffExampleUIThread.java.previous
+SOURCES = src/DiffExample.java.current src/DiffExample.java.previous src/DiffExampleUIThread.java.current src/DiffExampleUIThread.java.previous
 CLEAN_EXTRA = src/Diff*.java *.class
 include $(TESTS_DIR)/differential.make
 include $(TESTS_DIR)/java.make
@@ -17,14 +17,12 @@ $(CURRENT_REPORT) $(PREVIOUS_REPORT): $(JAVA_DEPS)
 
 $(CURRENT_REPORT):
 	$(QUIET)$(COPY) src/DiffExample.java.current src/DiffExample.java
-	$(QUIET)$(COPY) src/DiffExampleColdStart.java.current src/DiffExampleColdStart.java
 	$(QUIET)$(COPY) src/DiffExampleUIThread.java.current src/DiffExampleUIThread.java
 	$(QUIET)$(call silent_on_success,Testing Cost Differential: current,\
 	$(INFER_BIN) --enable-issue-type INFINITE_EXECUTION_TIME --cost-only -o $(CURRENT_DIR) -- $(JAVAC) -cp $(CLASSPATH)  src/*.java)
 
 $(PREVIOUS_REPORT):
 	$(QUIET)$(COPY) src/DiffExample.java.previous src/DiffExample.java
-	$(QUIET)$(COPY) src/DiffExampleColdStart.java.previous src/DiffExampleColdStart.java
 	$(QUIET)$(COPY) src/DiffExampleUIThread.java.previous src/DiffExampleUIThread.java
 	$(QUIET)$(call silent_on_success,Testing Cost Differential: previous,\
 	$(INFER_BIN) --debug --enable-issue-type INFINITE_EXECUTION_TIME --cost-only -o $(PREVIOUS_DIR) -- $(JAVAC)  -cp $(CLASSPATH) src/*.java)
diff --git a/infer/tests/build_systems/differential_of_costs_report/costs_summary.json.exp b/infer/tests/build_systems/differential_of_costs_report/costs_summary.json.exp
index 2387b5523..59041aa86 100644
--- a/infer/tests/build_systems/differential_of_costs_report/costs_summary.json.exp
+++ b/infer/tests/build_systems/differential_of_costs_report/costs_summary.json.exp
@@ -1 +1 @@
-{"top":{"current":4,"previous":2},"zero":{"current":0,"previous":0},"degrees":[{"degree":0,"current":9,"previous":7},{"degree":100,"current":3,"previous":5},{"degree":101,"current":4,"previous":0},{"degree":200,"current":1,"previous":4}]}
\ No newline at end of file
+{"top":{"current":2,"previous":1},"zero":{"current":0,"previous":0},"degrees":[{"degree":0,"current":6,"previous":5},{"degree":100,"current":2,"previous":3},{"degree":101,"current":2,"previous":0},{"degree":200,"current":1,"previous":2}]}
\ No newline at end of file
diff --git a/infer/tests/build_systems/differential_of_costs_report/fixed.exp b/infer/tests/build_systems/differential_of_costs_report/fixed.exp
index 1f51121ec..572d286a6 100644
--- a/infer/tests/build_systems/differential_of_costs_report/fixed.exp
+++ b/infer/tests/build_systems/differential_of_costs_report/fixed.exp
@@ -1,3 +1,2 @@
 EXECUTION_TIME_COMPLEXITY_INCREASE, no_bucket, src/DiffExample.java, DiffExample.f6(java.util.ArrayList):void, 0, [Updated Cost of f6 is 5 + list.length × log(list.length) (degree is 1 + 1⋅log),{list.length},call to void DiffExample.f5(ArrayList),Modeled call to Collections.sort,{list.length},call to void DiffExample.f5(ArrayList),Modeled call to Collections.sort]
-EXECUTION_TIME_COMPLEXITY_INCREASE_COLD_START, no_bucket, src/DiffExampleColdStart.java, DiffExampleColdStart.f6(java.util.ArrayList):void, 0, [Updated Cost of f6 is 5 + list.length × log(list.length) (degree is 1 + 1⋅log),{list.length},call to void DiffExampleColdStart.f5(ArrayList),Modeled call to Collections.sort,{list.length},call to void DiffExampleColdStart.f5(ArrayList),Modeled call to Collections.sort]
 EXECUTION_TIME_COMPLEXITY_INCREASE_UI_THREAD, no_bucket, src/DiffExampleUIThread.java, DiffExampleUIThread.f1(int):void, 0, [Updated Cost of f1 is 3 (degree is 0)]
diff --git a/infer/tests/build_systems/differential_of_costs_report/introduced.exp b/infer/tests/build_systems/differential_of_costs_report/introduced.exp
index f0053420e..efdb1fae3 100644
--- a/infer/tests/build_systems/differential_of_costs_report/introduced.exp
+++ b/infer/tests/build_systems/differential_of_costs_report/introduced.exp
@@ -1,7 +1,4 @@
 INFINITE_EXECUTION_TIME, no_bucket, src/DiffExample.java, DiffExample.f1(int):void, 0, [Unbounded loop,Loop at line 38]
 EXECUTION_TIME_COMPLEXITY_INCREASE, no_bucket, src/DiffExample.java, DiffExample.f4(int):int, 0, [Updated Cost of f4 is 6 + 5 ⋅ k (degree is 1),{k},Loop at line 57]
 EXECUTION_TIME_COMPLEXITY_INCREASE, no_bucket, src/DiffExample.java, DiffExample.f5(java.util.ArrayList):void, 0, [Updated Cost of f5 is 2 + list.length × log(list.length) (degree is 1 + 1⋅log),{list.length},Modeled call to Collections.sort,{list.length},Modeled call to Collections.sort]
-INFINITE_EXECUTION_TIME, no_bucket, src/DiffExampleColdStart.java, DiffExampleColdStart.f1(int):void, 0, [Unbounded loop,Loop at line 26]
-EXECUTION_TIME_COMPLEXITY_INCREASE_COLD_START, no_bucket, src/DiffExampleColdStart.java, DiffExampleColdStart.f4(int):int, 0, [Updated Cost of f4 is 6 + 7 ⋅ k (degree is 1),{k},Loop at line 45]
-EXECUTION_TIME_COMPLEXITY_INCREASE, no_bucket, src/DiffExampleColdStart.java, DiffExampleColdStart.f5(java.util.ArrayList):void, 0, [Updated Cost of f5 is 2 + list.length × log(list.length) (degree is 1 + 1⋅log),{list.length},Modeled call to Collections.sort,{list.length},Modeled call to Collections.sort]
 EXECUTION_TIME_COMPLEXITY_INCREASE_UI_THREAD, no_bucket, src/DiffExampleUIThread.java, DiffExampleUIThread.f2(int):void, 0, [Updated Cost of f2 is 5 + 5 ⋅ x (degree is 1),{x},Loop at line 27]
diff --git a/infer/tests/build_systems/differential_of_costs_report/preexisting.exp b/infer/tests/build_systems/differential_of_costs_report/preexisting.exp
index f2290a13b..5da894706 100644
--- a/infer/tests/build_systems/differential_of_costs_report/preexisting.exp
+++ b/infer/tests/build_systems/differential_of_costs_report/preexisting.exp
@@ -1,2 +1 @@
 INFINITE_EXECUTION_TIME, no_bucket, src/DiffExample.java, DiffExample.f7(int):void, 0, [Call to void DiffExample.f1(int),Unbounded loop,Loop at line 38]
-INFINITE_EXECUTION_TIME, no_bucket, src/DiffExampleColdStart.java, DiffExampleColdStart.f7(int):void, 0, [Call to void DiffExampleColdStart.f1(int),Unbounded loop,Loop at line 26]
diff --git a/infer/tests/build_systems/differential_of_costs_report/src/DiffExampleColdStart.java.current b/infer/tests/build_systems/differential_of_costs_report/src/DiffExampleColdStart.java.current
deleted file mode 100644
index 80023ed0d..000000000
--- a/infer/tests/build_systems/differential_of_costs_report/src/DiffExampleColdStart.java.current
+++ /dev/null
@@ -1,65 +0,0 @@
-/*
- * Copyright (c) Facebook, Inc. and its affiliates.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
- */
-
-import java.util.ArrayList;
-
-// This class has the following costs:
-// 1 bottom (zero), 2 constant, 1 linear, 1 top
-// constructor: constant
-// f1: top
-// f2: bottom (zero)
-// f3: constant
-// f4: linear
-// f5: n log n
-// f6: n log n
-// f7: top by call to f1
-
-public class DiffExampleColdStart {
-
-    // cost: top
-    private static void f1(int k) {
-        int i = 0;
-        while (i >=0) {
-            i++;
-        }
-    }
-
-    // cost: bottom (0)
-    private static void f2(int k) {}
-
-    // cost: constant (5)
-    private static int f3() {
-        int i, j;
-        i = 17;
-        j = 31;
-
-        return i + j + 3 + 7;
-    }
-
-    // cost: linear
-    private static int f4(int k) {
-        for (int i = 0; i < k; i++) {
-         int [] a = new int[100];
-        }
-        return 0;
-    }
-
-    // cost: n log n
-    private void f5(ArrayList<Integer> list) {
-      java.util.Collections.sort(list);
-    }
-
-    // cost: n log n
-    private void f6(ArrayList<Integer> list) {
-      f5(list);
-    }
-
-    // cost: top by call to f1
-    private static void f7(int k) {
-        f1(k);
-    }
-}
diff --git a/infer/tests/build_systems/differential_of_costs_report/src/DiffExampleColdStart.java.previous b/infer/tests/build_systems/differential_of_costs_report/src/DiffExampleColdStart.java.previous
deleted file mode 100644
index 8c22a0181..000000000
--- a/infer/tests/build_systems/differential_of_costs_report/src/DiffExampleColdStart.java.previous
+++ /dev/null
@@ -1,56 +0,0 @@
-/*
- * Copyright (c) Facebook, Inc. and its affiliates.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
- */
-
-// This class has the following costs:
-// 2 constant, 1 linear, 1 quadratic
-// constructor: constant
-// f1: linear
-// f2: quadratic
-// f4: constant
-// f5: linear
-// f6: quadratic
-// f7: top
-
-public class DiffExampleColdStart {
-    // cost: linear
-    private static int f1(int k) {
-        for (int i = 0; i < k; i++) {
-        }
-        return 0;
-    }
-
-    // cost: quadratic
-    private static void f2(int k) {
-        for (int i = 0; i < k; i++) {
-            f1(k);
-        }
-    }
-
-    // cost: constant
-    private static int f4(int k) {
-        int i = 1;
-        return i + k;
-    }
-
-    // cost: linear
-    private static void f5(int n) {
-        f1(n);
-    }
-
-    // cost: quadratic
-    private static void f6(int n) {
-        f2(n);
-    }
-
-    // cost: top
-    private static void f7(int k) {
-        int i = 0;
-        while (i >=0) {
-            i++;
-        }
-    }
-}