From 99ef9166ae84ee72c4b9d47d6af90e2cc20881a3 Mon Sep 17 00:00:00 2001
From: "Justin C. Miller" <justin@devjustinian.com>
Date: Mon, 18 Jan 2021 18:25:44 -0800
Subject: [PATCH] [kernel] Lower APIC calibration timer

Now that the spinwait bug is fixed, the raised time for APIC calibration
can be put back to a lower value. It was previously raised thinking more
time would get a more accurate result -- but accuracy was not the issue.
---
 src/kernel/apic.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/kernel/apic.cpp b/src/kernel/apic.cpp
index e62a591..7515d1c 100644
--- a/src/kernel/apic.cpp
+++ b/src/kernel/apic.cpp
@@ -68,7 +68,7 @@ lapic::calibrate_timer()
 	set_divisor(1);
 	apic_write(m_base, lapic_timer_init, initial);
 
-	uint64_t us = 200000;
+	uint64_t us = 20000;
 	clock::get().spinwait(us);
 
 	uint32_t remaining = apic_read(m_base, lapic_timer_cur);