0106-ksm-wakeups.patch

From 8350ca263ae0f06ae6a40b5e9ba280fb09aff895 Mon Sep 17 00:00:00 2001
From: Arjan van de Ven <arjan@linux.intel.com>
Date: Mon, 14 Mar 2016 11:06:46 -0600
Subject: [PATCH 106/126] ksm-wakeups

reduce wakeups in ksm by adding rounding (aligning) when the sleep times are 1 second or longer

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
---
 mm/ksm.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/mm/ksm.c b/mm/ksm.c
index 6cb60f46cce5..883a9441e055 100644
--- a/mm/ksm.c
+++ b/mm/ksm.c
@@ -2335,8 +2335,12 @@ static int ksm_scan_thread(void *nothing)
 		try_to_freeze();
 
 		if (ksmd_should_run()) {
-			schedule_timeout_interruptible(
-				msecs_to_jiffies(ksm_thread_sleep_millisecs));
+			if (ksm_thread_sleep_millisecs >= 1000)
+				schedule_timeout_interruptible(
+					msecs_to_jiffies(round_jiffies_relative(ksm_thread_sleep_millisecs)));
+			else
+				schedule_timeout_interruptible(
+					msecs_to_jiffies(ksm_thread_sleep_millisecs));
 		} else {
 			wait_event_freezable(ksm_thread_wait,
 				ksmd_should_run() || kthread_should_stop());
-- 
2.15.0

--- linux-4.14/kernel/watchdog.c~	2017-11-12 18:46:13.000000000 +0000
+++ linux-4.14/kernel/watchdog.c	2017-11-19 17:34:20.740254694 +0000
@@ -44,7 +44,7 @@
 int __read_mostly watchdog_user_enabled = 1;
 int __read_mostly nmi_watchdog_user_enabled = NMI_WATCHDOG_DEFAULT;
 int __read_mostly soft_watchdog_user_enabled = 1;
-int __read_mostly watchdog_thresh = 10;
+int __read_mostly watchdog_thresh = 40;
 int __read_mostly nmi_watchdog_available;
 
 struct cpumask watchdog_allowed_mask __read_mostly;