ninja_profile: add ninja profile analysis script

ninja_profile.awk

@@ -0,0 +1,14 @@
+#!/usr/bin/awk -f
+
+!/^#/ {
+    TIMES[$4] += ($2 - $1)/1000
+    COUNT[$4] += 1
+}
+
+END {
+    for (TGT in TIMES)
+        AVG[TGT]=TIMES[TGT]/COUNT[TGT]
+    asorti(AVG, SORTED, "@val_num_desc")
+    for (num in SORTED)
+        print AVG[SORTED[num]] " " SORTED[num]
+}