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-rw-r--r--generic/tclCmdMZ.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/generic/tclCmdMZ.c b/generic/tclCmdMZ.c
index 14ff5f0..b62ccf8 100644
--- a/generic/tclCmdMZ.c
+++ b/generic/tclCmdMZ.c
@@ -4282,6 +4282,13 @@ usage:
if (middle >= stop) {
break;
}
+
+ /* don't calculate threshold by few iterations, because sometimes
+ * first iteration(s) can be too fast (cached, delayed clean up, etc) */
+ if (count < 10) {
+ threshold = 1; continue;
+ }
+
/* average iteration time in microsecs */
threshold = (middle - start) / count;
if (threshold > maxIterTm) {