diff --git a/Lib/test/libregrtest/win_utils.py b/Lib/test/libregrtest/win_utils.py
@@ -14,7 +14,7 @@
LOAD_FACTOR_1 = 0.9200444146293232478931553241

# Seconds per measurement
-SAMPLING_INTERVAL = 5
# Windows registry subkey of HKEY_LOCAL_MACHINE where the counter names
# of typeperf are registered
COUNTER_REGISTRY_KEY = (r"SOFTWARE\Microsoft\Windows NT\CurrentVersion"
@@ -32,6 +32,7 @@ class WindowsLoadTracker():
    def __init__(self):
        self.load = 0.0
        self.counter_name = ''
        self.popen = None
        self.start()

@@ -94,42 +95,60 @@ def close(self):
    def __del__(self):
        self.close()

-    def read_output(self):
        overlapped, _ = _winapi.ReadFile(self.pipe, BUFSIZE, True)
        bytes_read, res = overlapped.GetOverlappedResult(False)
        if res != 0:
-            return

        output = overlapped.getbuffer()
-        return output.decode('oem', 'replace')

    def getloadavg(self):
-        typeperf_output = self.read_output()
-        # Nothing to update, just return the current load
-        if not typeperf_output:
-            return self.load

-        # Process the backlog of load values
-        for line in typeperf_output.splitlines():
            # Ignore the initial header:
            # "(PDH-CSV 4.0)","\\\\WIN\\System\\Processor Queue Length"
-            if '\\\\' in line:
                continue

            # Ignore blank lines
-            if not line.strip():
                continue

-            # typeperf outputs in a CSV format like this:
-            # "07/19/2018 01:32:26.605","3.000000"
-            # (date, process queue length)
            try:
-                tokens = line.split(',')
-                if len(tokens) != 2:
-                    raise ValueError
-
-                value = tokens[1].replace('"', '')
-                load = float(value)
            except ValueError:
                print_warning("Failed to parse typeperf output: %a" % line)
                continue