From 23e523b6b9784390c7ce2c5af654ab497fb10aaf Mon Sep 17 00:00:00 2001
From: Jose Castillo <jcastillo@redhat.com>
Date: Wed, 8 Sep 2021 09:25:24 +0200
Subject: [PATCH] [kernel] Capture Pressure Stall Information

Kernel 4.20 includes PSI metrics for CPU, memeory and IO.
The feature is enabled after adding "psi=1" as
kernel boot parameter.
The information is captured in files
in the directory /proc/pressure.

Signed-off-by: Jose Castillo <jcastillo@redhat.com>
---
 sos/report/plugins/kernel.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/sos/report/plugins/kernel.py b/sos/report/plugins/kernel.py
index 8c5e5e11..803f5e30 100644
--- a/sos/report/plugins/kernel.py
+++ b/sos/report/plugins/kernel.py
@@ -112,7 +112,8 @@ class Kernel(Plugin, IndependentPlugin):
             "/sys/kernel/debug/extfrag/unusable_index",
             "/sys/kernel/debug/extfrag/extfrag_index",
             clocksource_path + "available_clocksource",
-            clocksource_path + "current_clocksource"
+            clocksource_path + "current_clocksource",
+            "/proc/pressure/"
         ])
 
         if self.get_option("with-timer"):
-- 
2.31.1