FIX: forgot to checkin the perf_counter class

chorus_upload/perf_counter.py

@@ -0,0 +1,73 @@
+import time
+
+
+class PerformanceCounter:
+    def __init__(self, total_file_count: int = None):
+        self.has_total = total_file_count is not None
+        self.total_file_count = total_file_count
+
+        self.file_count = 0
+        self.file_size = 0
+        self.session_file_count = 0
+        self.session_file_size = 0
+        self.session_start_time = time.time()
+        self.start_time = time.time()
+
+    def __del__(self):
+        elapsed = time.time() - self.start_time
+        if elapsed > 0:
+            size_throughput = self.file_size / elapsed
+            file_throughput = self.file_count / elapsed
+            if self.has_total:
+                percent_files = (self.file_count / self.total_file_count) * 100
+                remaining_time = (elapsed / self.file_count) * (self.total_file_count - self.file_count) 
+                print("Total elapsed: ", elapsed, " seconds, with ",
+                    self.file_count, " files (", file_throughput, " files/s) and ", 
+                    self.file_size, " bytes (", size_throughput, " bytes/s). ", 
+                    percent_files, "% files and ",
+                    "Estimated remaining time: ", remaining_time, " seconds")
+            else:
+                print("Total elapsed: ", elapsed, " seconds, with ",
+                    self.file_count, " files (", file_throughput, " files/s) and ", 
+                    self.file_size, " bytes (", size_throughput, " bytes/s). ")
+        else:
+            print("Warning: total elapsed time is 0")
+
+    def add_file(self, file_size):
+        self.file_size += file_size
+        self.file_count += 1
+        self.session_file_count += 1
+        self.session_file_size += file_size
+
+    def report(self):
+        # first compute the throughput for the session
+        elapsed = time.time() - self.session_start_time
+        if elapsed > 0:
+            size_throughput = self.session_file_size / elapsed
+            file_throughput = self.session_file_count / elapsed
+            print("Session elapsed: ", elapsed, " seconds, with ", 
+                  self.session_file_count, " files (", file_throughput, " files/s) and ",
+                  self.session_file_size, " bytes (", size_throughput, " bytes/s)")
+        else:
+            print("Warning: session elapsed time is 0")
+
+        elapsed = time.time() - self.start_time
+        if elapsed > 0:
+            size_throughput = self.file_size / elapsed
+            file_throughput = self.file_count / elapsed
+            if self.has_total:
+                percent_files = (self.file_count / self.total_file_count) * 100
+                remaining_time = (elapsed / self.file_count) * (self.total_file_count - self.file_count) 
+                print("Cumulative elapsed: ", elapsed, " seconds, with ",
+                    self.file_count, " files (", file_throughput, " files/s) and ", 
+                    self.file_size, " bytes (", size_throughput, " bytes/s). ", 
+                    percent_files, "% files and ",
+                    "Estimated remaining time: ", remaining_time, " seconds")
+            else:
+                print("Cumulative elapsed: ", elapsed, " seconds, with ",
+                    self.file_count, " files (", file_throughput, " files/s) and ", 
+                    self.file_size, " bytes (", size_throughput, " bytes/s). ")
+        else:
+            print("Warning: cumulative elapsed time is 0")
+
+