Merge pull request #72 from LanderU/71-disable-memory-compaction

Disable memory compaction
ros-realtime · Oct 16, 2023 · 38089c6 · 38089c6
2 parents 3c2024f + 5c5d211
commit 38089c6
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diff --git a/image_builder/data/jammy-rt/rootfs/etc/systemd/system/memory-compaction.service b/image_builder/data/jammy-rt/rootfs/etc/systemd/system/memory-compaction.service
@@ -0,0 +1,11 @@
+[Unit]
+Description=Disable memory compaction
+ConditionPathExists=/proc/sys/vm/compact_unevictable_allowed
+
+[Service]
+Type=oneshot
+RemainAfterExit=yes
+ExecStart=/opt/ros2-rt-rpi4/memory-compaction
+
+[Install]
+WantedBy=multi-user.target
diff --git a/image_builder/data/jammy-rt/rootfs/opt/ros2-rt-rpi4/memory-compaction b/image_builder/data/jammy-rt/rootfs/opt/ros2-rt-rpi4/memory-compaction
@@ -0,0 +1,3 @@
+#!/bin/bash
+
+echo 0 | tee /proc/sys/vm/compact_unevictable_allowed
diff --git a/image_builder/data/jammy-rt/scripts/phase1-target b/image_builder/data/jammy-rt/scripts/phase1-target
@@ -64,6 +64,9 @@ systemctl enable cpu-frequency
 # Disable rt-throttling
 systemctl enable rt-throttling
 
+# Disable memory compaction
+systemctl enable memory-compaction
+
 # Disable unattended-upgrades
 apt remove -y unattended-upgrades
Original file line number	Diff line number	Diff line change
		@@ -0,0 +1,3 @@
		#!/bin/bash

		echo 0 \| tee /proc/sys/vm/compact_unevictable_allowed