From e0587d15645be0b1c8a11d3b4ea82a23ecebf595 Mon Sep 17 00:00:00 2001
From: "sergey.brester" <sergey.brester>
Date: Tue, 12 Feb 2019 19:46:29 +0000
Subject: fixes estimated time of too short execution considering calibrated
 overhead (it is 0us and not 1us, example: `timerate {break}` with and without
 calibration)

---
 generic/tclCmdMZ.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/generic/tclCmdMZ.c b/generic/tclCmdMZ.c
index 4ee43ea..cb44e08 100644
--- a/generic/tclCmdMZ.c
+++ b/generic/tclCmdMZ.c
@@ -4243,11 +4243,11 @@ usage:
 	    /* minimize influence of measurement overhead */
 	    if (overhead > 0) {
 		/* estimate the time of overhead (microsecs) */
-		Tcl_WideInt curOverhead = overhead * count;
+		Tcl_WideUInt curOverhead = overhead * count;
 		if (middle > curOverhead) {
 		    middle -= curOverhead;
 		} else {
-		    middle = 1;
+		    middle = 0;
 		}
 	    }
 	} else {
-- 
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