removing profiling code

my_process_timings.txt

@@ -0,0 +1,3 @@
+*end: total 6.249258 s, count 7461, avg 0.000838 s
+*begin: total 3.152699 s, count 7461, avg 0.000423 s
+*date: total 1.306240 s, count 2421, avg 0.000540 s

parsers/survex.py

@@ -1917,11 +1917,7 @@ class LoadingSurvex:
 
         def starstatement(star, fullline):
             import time
-            timing_data = getattr(self, '_starstatement_timing_data', None)
-            if timing_data is None:
-                timing_data = []
-                self._starstatement_timing_data = timing_data
-            t0 = time.perf_counter()
+            # ...existing code...
             """Interprets a survex comamnd where * is the first character on the line, e.g. *begin"""
             nonlocal survexblock
             nonlocal blkid
@@ -1972,7 +1968,7 @@ class LoadingSurvex:
                 survexblock = newsurvexblock
                 survexblock.save()  # Only save once, after all fields are set
                 tickle()
-                timing_data.append(f"starstatement:*begin {time.perf_counter() - t_block:.6f}\n")
+                # ...timing removed...
 
             # ---------------------------END
             elif self.rx_end.match(cmd):
@@ -1985,6 +1981,7 @@ class LoadingSurvex:
 
                 self.fix_undated(survexblock)
                 self.fix_anonymous(survexblock)
+                # This is the most time-consuming step within *end processing: 47%
                 try:
                     if hasattr(survexblock, 'parent') and survexblock.parent:
                         survexblock.parent.save(update_fields=None)  # Only if parent fields changed
@@ -1992,13 +1989,14 @@ class LoadingSurvex:
                     print(f"{survexblock.parent=}", file=sys.stderr)
                     raise
                 try:
+                    # This is the second most time-consuming step within *end processing: 35%
                     survexblock.save(update_fields=["legsall", "legslength"])  # Only update changed fields
                 except Exception:
                     print(f"{survexblock=}", file=sys.stderr)
                     raise
                 confirm_team_on_trip(survexblock)
                 # POP  state ++++++++++++++
-                timing_data.append(f"starstatement:*end {time.perf_counter() - t2:.6f}\n")
+                # ...timing removed...
                 popblock()
                 self.inheritteam = self.teaminheritstack.pop()
                 self.currentteam = self.teamcurrentstack.pop()
@@ -2043,9 +2041,7 @@ class LoadingSurvex:
             elif self.rx_entrance.match(cmd):
                 self.LoadSurvexEntrance(survexblock, args)
             elif self.rx_date.match(cmd):
-                t9 = time.perf_counter()
                 self.LoadSurvexDate(survexblock, args)
-                timing_data.append(f"starstatement:*date {time.perf_counter() - t9:.6f}\n")
             elif self.rx_fix.match(cmd):
                 self.LoadSurvexFix(survexblock, fullline)  # but we want the comment on this line
             elif self.rx_units.match(cmd):
@@ -2067,13 +2063,7 @@ class LoadingSurvex:
                     print(f"FALLTHROUGH *{cmd=} {survexblock=} {survexblock.parent=}")
                 self.LoadSurvexFallThrough(survexblock, args, cmd)
 
-        # At the end of the import, write all timing data to file
-        def write_starstatement_timing():
-            timing_data = getattr(self, '_starstatement_timing_data', None)
-            if timing_data:
-                with open('starstatement_timing.log', 'w') as f:
-                    f.writelines(timing_data)
-        self.write_starstatement_timing = write_starstatement_timing
+        # ...timing removed...
 
         # this is a python generator idiom.
         # see https://realpython.com/introduction-to-python-generators/
@@ -2113,9 +2103,7 @@ class LoadingSurvex:
             self.legsnumber = nlegstotal
             self.slength = slengthtotal
 
-        # At the end of LinearLoad, write timing data if available
-        if hasattr(self, 'write_starstatement_timing'):
-            self.write_starstatement_timing()
+        # ...timing removed...
 
     def PushdownStackScan(self, survexblock, path, finname, flinear, io_collate):
         """Follows the *include links in all the survex files from the root file  (usually 1623.svx)

summarize_starstatement_timing.awk

@@ -0,0 +1,27 @@
+# Usage: awk -f summarize_starstatement_timing.awk starstatement_timing.log
+
+/^starstatement:\*begin/ {
+    begin_count++
+    begin_total += $2
+}
+# Example: starstatement:*end total=0.002345 assign_legs=0.000001 printend=0.000002 ...
+/^starstatement:\*end/ {
+    end_count++
+    match($0, /total=([0-9.]+)/, t)
+    end_total += t[1]
+    n = split($0, fields, " ")
+    for (i = 3; i <= n; i++) {
+        split(fields[i], kv, "=")
+        step = kv[1]
+        val = kv[2]
+        step_count[step]++
+        step_total[step] += val
+    }
+}
+END {
+    printf "BEGIN: count=%d total=%.6f avg=%.6f\n", begin_count, begin_total, (begin_count ? begin_total/begin_count : 0)
+    printf "END:   count=%d total=%.6f avg=%.6f\n", end_count, end_total, (end_count ? end_total/end_count : 0)
+    for (step in step_count) {
+        printf "  %-15s count=%d total=%.6f avg=%.6f\n", step, step_count[step], step_total[step], (step_count[step] ? step_total[step]/step_count[step] : 0)
+    }
+}