From f07c756494b0e473ff8e4ece6f04c7ababe93b01 Mon Sep 17 00:00:00 2001
From: Nobuyoshi Nakada <nobu@ruby-lang.org>
Date: Mon, 3 Apr 2023 14:10:16 +0900
Subject: core_assertions.rb: Tweak timeout limit

Increase the timeout limit when variance at rehearsal is small.
---
 tool/lib/core_assertions.rb | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

(limited to 'tool')

diff --git a/tool/lib/core_assertions.rb b/tool/lib/core_assertions.rb
index c5b4089862..6000d39c90 100644
--- a/tool/lib/core_assertions.rb
+++ b/tool/lib/core_assertions.rb
@@ -758,14 +758,14 @@ eom
         end
         times.compact!
         tmin, tmax = times.minmax
-        tmax *= tmax / tmin
-        tmax = 10**Math.log10(tmax).ceil
+        tbase = 10 ** Math.log10(tmax * ([(tmax / tmin), 2].max ** 2)).ceil
+        info = "(tmin: #{tmin}, tmax: #{tmax}, tbase: #{tbase})"
 
         seq.each do |i|
           next if i == first
-          t = tmax * i.fdiv(first)
+          t = tbase * i.fdiv(first)
           *arg = pre.call(i)
-          message = "[#{i}]: in #{t}s"
+          message = "[#{i}]: in #{t}s #{info}"
           Timeout.timeout(t, Timeout::Error, message) do
             st = Process.clock_gettime(Process::CLOCK_MONOTONIC)
             yield(*arg)
-- 
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