[tools] Beef up GC eval scripts

tools/eval_gc_time.sh

 #!/bin/bash
 #
 # Copyright 2015 the V8 project authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 # Convenience Script used to rank GC NVP output.
 
 print_usage_and_die() {
-  echo "Usage: $0 RANK SORT [LOGFILE]"
+  echo "Usage: $0 [OPTIONS]"
   echo ""
-  echo "Arguments:"
-  echo "  RANK: old-gen-rank | new-gen-rank"
-  echo "  SORT: max | avg"
-  echo "  LOGFILE: the file to process. will default to /dev/stdin"
+  echo "OPTIONS"
+  echo  "  -r|--rank new-gen-rank|old-gen-rank    GC mode to profile"
+  echo  "                                         (default: old-gen-rank)"
+  echo  "  -s|--sort avg|max                      sorting mode (default: max)"
+  echo  "  -t|--top-level                         include top-level categories"
+  echo  "  -c|--csv                               provide csv output"
+  echo  "  -f|--file FILE                         profile input in a file"
+  echo  "                                         (default: stdin)"
   exit 1
 }
 
-if [[ $# -lt 2 || $# -gt 3 ]]; then
+OP=old-gen-rank
+RANK_MODE=max
+TOP_LEVEL=no
+CSV=""
+LOGFILE=/dev/stdin
+
+while [[ $# -ge 1 ]]
+do
+  key="$1"
+  case $key in
+    -r|--rank)
+      case $2 in
+        new-gen-rank|old-gen-rank)
+          OP="$2"
+          ;;
+        *)
+          print_usage_and_die
+      esac
+      shift
+      ;;
+    -s|--sort)
+      case $2 in
+        max|avg)
+          RANK_MODE=$2
+          ;;
+        *)
+          print_usage_and_die
+      esac
+      shift
+      ;;
+    -t|--top-level)
+      TOP_LEVEL=yes
+      ;;
+    -c|--csv)
+      CSV=" --csv "
+      ;;
+    -f|--file)
+      LOGFILE=$2
+      shift
+      ;;
+    *)
+      break
+      ;;
+  esac
+  shift
+done
+
+if [[ $# -ne 0 ]]; then
+  echo "Unknown option(s): $@"
+  echo ""
   print_usage_and_die
 fi
 
-case $1 in
-  new-gen-rank|old-gen-rank)
-    OP=$1
-    ;;
-  *)
-    print_usage_and_die
-esac
-
-case $2 in 
-  max|avg)
-    RANK_MODE=$2
-    ;;
-  *)
-    print_usage_and_die
-esac
-
-if [ $# -eq 3 ]; then
-  LOGFILE=$3
-else
-  LOGFILE=/dev/stdin
-fi
-
-GENERAL_INTERESTING_KEYS="\
-  pause \
-"
-
 INTERESTING_NEW_GEN_KEYS="\
-  ${GENERAL_INTERESTING_KEYS} \
   scavenge \
   weak \
   roots \
   old_new \
   code \
   semispace \
   object_groups \
 "
 
 INTERESTING_OLD_GEN_KEYS="\
-  ${GENERAL_INTERESTING_KEYS} \
-  clear \
   clear.code_flush \
   clear.dependent_code \
   clear.global_handles \
   clear.maps \
   clear.slots_buffer \
   clear.store_buffer \
   clear.string_table \
   clear.weak_cells \
   clear.weak_collections \
   clear.weak_lists \
-  finish \
-  evacuate \
   evacuate.candidates \
   evacuate.clean_up \
   evacuate.copy \
   evacuate.update_pointers \
   evacuate.update_pointers.between_evacuated \
   evacuate.update_pointers.to_evacuated \
   evacuate.update_pointers.to_new \
   evacuate.update_pointers.weak \
   external.mc_prologue \
   external.mc_epilogue \
   external.mc_incremental_prologue \
   external.mc_incremental_epilogue \
   external.weak_global_handles \
-  mark \
   mark.finish_incremental \
   mark.prepare_code_flush \
   mark.roots \
   mark.weak_closure \
   mark.weak_closure.ephemeral \
   mark.weak_closure.weak_handles \
   mark.weak_closure.weak_roots \
   mark.weak_closure.harmony \
-  sweep \
   sweep.code \
   sweep.map \
   sweep.old \
-  incremental_finalize \
 "
 
+if [[ "$TOP_LEVEL" = "yes" ]]; then
+  INTERESTING_OLD_GEN_KEYS="\
+    ${INTERESTING_OLD_GEN_KEYS} \
+    clear \
+    evacuate \
+    finish \
+    incremental_finalize \
+    mark \
+    pause
+    sweep \
+  "
+  INTERESTING_NEW_GEN_KEYS="\
+    ${INTERESTING_NEW_GEN_KEYS} \
+  "
+fi
+
 BASE_DIR=$(dirname $0)
 
 case $OP in
   new-gen-rank)
     cat $LOGFILE | grep "gc=s" \
       | $BASE_DIR/eval_gc_nvp.py \
       --no-histogram \
       --rank $RANK_MODE \
+      $CSV \
       ${INTERESTING_NEW_GEN_KEYS}
     ;;
   old-gen-rank)
     cat $LOGFILE | grep "gc=ms" \
       | $BASE_DIR/eval_gc_nvp.py \
       --no-histogram \
       --rank $RANK_MODE \
+      $CSV \
       ${INTERESTING_OLD_GEN_KEYS}
     ;;
   *)
     ;;
 esac
-