utilities: Add kernel_delay.py script to debug a busy Linux kernel.

This patch adds an utility that can be used to determine if an issue is related to a lack of Linux kernel resources. This tool is also featured in a Red Hat developers blog article: https://developers.redhat.com/articles/2023/07/24/troubleshooting-open-vswitch-kernel-blame Reviewed-by: Adrian Moreno <[email protected]> Acked-by: Aaron Conole <[email protected]> Signed-off-by: Eelco Chaudron <[email protected]>
openvswitch · Sep 27, 2023 · 13dde11 · 13dde11
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commit 13dde11
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diff --git a/utilities/automake.mk b/utilities/automake.mk
@@ -23,6 +23,8 @@ scripts_DATA += utilities/ovs-lib
 usdt_SCRIPTS += \
 	utilities/usdt-scripts/bridge_loop.bt \
 	utilities/usdt-scripts/dpif_nl_exec_monitor.py \
+	utilities/usdt-scripts/kernel_delay.py \
+	utilities/usdt-scripts/kernel_delay.rst \
 	utilities/usdt-scripts/reval_monitor.py \
 	utilities/usdt-scripts/upcall_cost.py \
 	utilities/usdt-scripts/upcall_monitor.py
@@ -70,6 +72,8 @@ EXTRA_DIST += \
 	utilities/docker/debian/build-kernel-modules.sh \
 	utilities/usdt-scripts/bridge_loop.bt \
 	utilities/usdt-scripts/dpif_nl_exec_monitor.py \
+	utilities/usdt-scripts/kernel_delay.py \
+	utilities/usdt-scripts/kernel_delay.rst \
 	utilities/usdt-scripts/reval_monitor.py \
 	utilities/usdt-scripts/upcall_cost.py \
 	utilities/usdt-scripts/upcall_monitor.py