From 6f13d6a900a423219af4d9f947f8f584635c520e Mon Sep 17 00:00:00 2001 From: pmikus Date: Tue, 4 Oct 2016 13:31:25 +0100 Subject: [PATCH 1/1] CSIT-429: Add hugepages configuration to ansible-host - Add sysctl configuration to allocate HugePages into ansible SUT host section Change-Id: Iba6e9da1d92b4ddbc04a99817e098306e68c179d Signed-off-by: pmikus --- .../tools/testbed-setup/playbooks/01-host-setup.yaml | 2 ++ resources/tools/testbed-setup/playbooks/files/90-csit | 16 ++++++++++++++++ 2 files changed, 18 insertions(+) create mode 100644 resources/tools/testbed-setup/playbooks/files/90-csit diff --git a/resources/tools/testbed-setup/playbooks/01-host-setup.yaml b/resources/tools/testbed-setup/playbooks/01-host-setup.yaml index 4640260a2d..b4907c6d45 100644 --- a/resources/tools/testbed-setup/playbooks/01-host-setup.yaml +++ b/resources/tools/testbed-setup/playbooks/01-host-setup.yaml @@ -79,6 +79,8 @@ remote_user: testuser sudo: yes tasks: + - name: copy sysctl file + template: src=files/90-csit dest=/etc/sysctl.d/90-csit.conf owner=root group=root mode=644 - name: Install dkms apt: name=dkms state=present - name: isolcpus and pstate parameter diff --git a/resources/tools/testbed-setup/playbooks/files/90-csit b/resources/tools/testbed-setup/playbooks/files/90-csit new file mode 100644 index 0000000000..b9e0b0fbab --- /dev/null +++ b/resources/tools/testbed-setup/playbooks/files/90-csit @@ -0,0 +1,16 @@ +# Number of 2MB hugepages desired +vm.nr_hugepages=4096 + +# Must be greater than or equal to (2 * vm.nr_hugepages). +vm.max_map_count=20000 + +# All groups allowed to access hugepages +vm.hugetlb_shm_group=0 + +# Shared Memory Max must be greator 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 /sys/proc/kernel/shmmax) +# is greater than the calculated TotalHugepageSize then set this parameter +# to current shmmax value. +kernel.shmmax=8589934592 + -- 2.16.6