From 80e441ff6683f74d9567f5ea1c96554a5a8836c3 Mon Sep 17 00:00:00 2001
From: tompng <tomoyapenguin@gmail.com>
Date: Sun, 9 Nov 2025 22:23:42 +0900
Subject: [PATCH] Sync https://github.com/ruby/ruby/pull/14866

Low resolution-clock is added in windows, but it shouldn't be used in assert_linear_performance.
ruby/ruby's core_assertion.rb selects clock that has enough resolution.
---
 lib/core_assertions.rb | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/lib/core_assertions.rb b/lib/core_assertions.rb
index 00d180f..02038aa 100644
--- a/lib/core_assertions.rb
+++ b/lib/core_assertions.rb
@@ -835,6 +835,9 @@ def assert_all_assertions_foreach(msg = nil, *keys, &block)
             rescue
               # Constants may be defined but not implemented, e.g., mingw.
             else
+              unless Process.clock_getres(clk) < 1.0e-03
+                next # needs msec precision
+              end
               PERFORMANCE_CLOCK = clk
             end
           end