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From 23e523b6b9784390c7ce2c5af654ab497fb10aaf Mon Sep 17 00:00:00 2001
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From: Jose Castillo <jcastillo@redhat.com>
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Date: Wed, 8 Sep 2021 09:25:24 +0200
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Subject: [PATCH] [kernel] Capture Pressure Stall Information
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Kernel 4.20 includes PSI metrics for CPU, memeory and IO.
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The feature is enabled after adding "psi=1" as
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kernel boot parameter.
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The information is captured in files
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in the directory /proc/pressure.
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Signed-off-by: Jose Castillo <jcastillo@redhat.com>
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---
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sos/report/plugins/kernel.py | 3 ++-
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1 file changed, 2 insertions(+), 1 deletion(-)
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diff --git a/sos/report/plugins/kernel.py b/sos/report/plugins/kernel.py
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index 8c5e5e11..803f5e30 100644
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--- a/sos/report/plugins/kernel.py
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+++ b/sos/report/plugins/kernel.py
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@@ -112,7 +112,8 @@ class Kernel(Plugin, IndependentPlugin):
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"/sys/kernel/debug/extfrag/unusable_index",
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"/sys/kernel/debug/extfrag/extfrag_index",
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clocksource_path + "available_clocksource",
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- clocksource_path + "current_clocksource"
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+ clocksource_path + "current_clocksource",
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+ "/proc/pressure/"
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])
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if self.get_option("with-timer"):
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--
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2.31.1
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