From 8b2b036b4f045316032643c6170d694b0efd6788 Mon Sep 17 00:00:00 2001
From: Viacheslav Hletenko <v.gletenko@vyos.io>
Date: Sat, 1 Jul 2023 06:23:38 +0000
Subject: T1797: VPP verify minimal installed memory and apply sysctl

Do not allow configure VPP if on the systems with low amount
installed memory
Add sysctl VPP parameters (hugepages, kernel.shmmax)
---
 data/templates/vpp/sysctl.conf.j2 | 15 +++++++++++++++
 1 file changed, 15 insertions(+)
 create mode 100644 data/templates/vpp/sysctl.conf.j2

(limited to 'data/templates')

diff --git a/data/templates/vpp/sysctl.conf.j2 b/data/templates/vpp/sysctl.conf.j2
new file mode 100644
index 000000000..2207e2e38
--- /dev/null
+++ b/data/templates/vpp/sysctl.conf.j2
@@ -0,0 +1,15 @@
+# Number of 2MB hugepages desired
+vm.nr_hugepages=1024
+
+# Must be greater than or equal to (2 * vm.nr_hugepages).
+vm.max_map_count=3096
+
+# All groups allowed to access hugepages
+vm.hugetlb_shm_group=0
+
+# Shared Memory Max must be greater or equal to the total size of hugepages.
+# For 2MB pages, TotalHugepageSize = vm.nr_hugepages * 2 * 1024 * 1024
+# If the existing kernel.shmmax setting  (cat /proc/sys/kernel/shmmax)
+# is greater than the calculated TotalHugepageSize then set this parameter
+# to current shmmax value.
+kernel.shmmax=2147483648
-- 
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