tests: Standardise output of connection benchmarks

docs/changelog.rst

@@ -25,6 +25,7 @@ In progress (unreleased)
   ``if sys.version_info`` blocks
 * :gh:issue:`1423` tests: Group and unify naming of connection benchmarks
 * :gh:issue:`1424` tests: Parameterize connection benchmarks
+* :gh:issue:`1424` tests: Standardise output of connection benchmarks
 
 
 v0.3.37 (2026-01-08)

tests/bench/connection/fork_lifecycle.py

@@ -26,4 +26,7 @@ def main(router):
         t = mitogen.core.now()
         ctx = router.fork(debug=opts.debug)
         ctx.shutdown(wait=True)
-    print('++ %d' % 1000 * ((mitogen.core.now() - t0) / (1.0+x)))
+
+    t1 = mitogen.core.now()
+    mean = (t1 - t0) / opts.iterations
+    print('++ iterations %d, mean %.03f ms' % (opts.iterations, 1e3 * mean))

tests/bench/connection/fork_roundtrip.py

@@ -32,4 +32,7 @@ def main(router):
     t0 = mitogen.core.now()
     for x in xrange(opts.iterations):
         f.call(do_nothing)
-    print('++', int(1e6 * ((mitogen.core.now() - t0) / (1.0+x))), 'usec')
+
+    t1 = mitogen.core.now()
+    mean = (t1 - t0) / opts.iterations
+    print('++ iterations %d, mean %.03f us' % (opts.iterations, 1e6 * mean))

tests/bench/connection/local_lifecycle.py

@@ -27,5 +27,7 @@ def main(router):
         t = mitogen.core.now()
         f = router.local(debug=opts.debug)
         tt = mitogen.core.now()
-        print(x, 1000 * (tt - t))
-    print('%.03f ms' % (1000 * (mitogen.core.now() - t0) / (1.0 + x)))
+
+    t1 = mitogen.core.now()
+    mean = (t1 - t0) / opts.iterations
+    print('++ iterations %d, mean %.03f ms' % (opts.iterations, 1e3 * mean))

tests/bench/connection/ssh_roundtrip.py

@@ -43,6 +43,8 @@ def main(router):
     while mitogen.core.now() < end:
         f.call(do_nothing)
         i += 1
-        t1 = mitogen.core.now()
 
-    print('++', float(1e3 * (t1 - t0) / (1.0+i)), 'ms')
+    t1 = mitogen.core.now()
+    iterations = i + 1
+    mean = (t1 - t0) / iterations
+    print('++ iterations %d, mean %.03f ms' % (iterations, 1e3 * mean))