4 System provisioning is done by combination of PXE boot unattented
6 `Ansible <https://www.ansible.com>`_ described in `CSIT Testbed Setup`_.
8 Below a subset of the running configuration:
10 1. Xeon Haswell - Ubuntu 16.04.1 LTS
15 No LSB modules are available.
16 Distributor ID: Ubuntu
17 Description: Ubuntu 16.04.1 LTS
21 2. Xeon Skylake - Ubuntu 18.04 LTS
26 No LSB modules are available.
27 Distributor ID: Ubuntu
28 Description: Ubuntu 18.04 LTS
35 - **isolcpus=<cpu number>-<cpu number>** used for all cpu cores apart from
36 first core of each socket used for running VPP worker threads and Qemu/LXC
38 https://www.kernel.org/doc/Documentation/admin-guide/kernel-parameters.txt
39 - **intel_pstate=disable** - [X86] Do not enable intel_pstate as the default
40 scaling driver for the supported processors. Intel P-State driver decide what
41 P-state (CPU core power state) to use based on requesting policy from the
42 cpufreq core. [X86 - Either 32-bit or 64-bit x86]
43 https://www.kernel.org/doc/Documentation/cpu-freq/intel-pstate.txt
44 - **nohz_full=<cpu number>-<cpu number>** - [KNL,BOOT] In kernels built with
45 CONFIG_NO_HZ_FULL=y, set the specified list of CPUs whose tick will be stopped
46 whenever possible. The boot CPU will be forced outside the range to maintain
47 the timekeeping. The CPUs in this range must also be included in the
48 rcu_nocbs= set. Specifies the adaptive-ticks CPU cores, causing kernel to
49 avoid sending scheduling-clock interrupts to listed cores as long as they have
50 a single runnable task. [KNL - Is a kernel start-up parameter, SMP - The
51 kernel is an SMP kernel].
52 https://www.kernel.org/doc/Documentation/timers/NO_HZ.txt
53 - **rcu_nocbs** - [KNL] In kernels built with CONFIG_RCU_NOCB_CPU=y, set the
54 specified list of CPUs to be no-callback CPUs, that never queue RCU callbacks
56 https://www.kernel.org/doc/Documentation/admin-guide/kernel-parameters.txt
57 - **numa_balancing=disable** - [KNL,X86] Disable automatic NUMA balancing.
58 - **intel_iommu=enable** - [DMAR] Enable Intel IOMMU driver (DMAR) option.
59 - **iommu=on, iommu=pt** - [x86, IA-64] Disable IOMMU bypass, using IOMMU for
61 - **nmi_watchdog=0** - [KNL,BUGS=X86] Debugging features for SMP kernels. Turn
62 hardlockup detector in nmi_watchdog off.
63 - **nosoftlockup** - [KNL] Disable the soft-lockup detector.
64 - **tsc=reliable** - Disable clocksource stability checks for TSC.
65 [x86] reliable: mark tsc clocksource as reliable, this disables clocksource
66 verification at runtime, as well as the stability checks done at bootup.
67 Used to enable high-resolution timer mode on older hardware, and in
68 virtualized environment.
69 - **hpet=disable** - [X86-32,HPET] Disable HPET and use PIT instead.
74 1. Xeon Haswell - Ubuntu 16.04.1 LTS
79 BOOT_IMAGE=/vmlinuz-4.4.0-72-generic root=UUID=35ea11e4-e44f-4f67-8cbe-12f09c49ed90 ro isolcpus=1-17,19-35 nohz_full=1-17,19-35 rcu_nocbs=1-17,19-35 intel_pstate=disable console=tty0 console=ttyS0,115200n8
81 2. Xeon Skylake - Ubuntu 18.04 LTS
86 BOOT_IMAGE=/vmlinuz-4.15.0-23-generic root=UUID=3fa246fd-1b80-4361-bb90-f339a6bbed51 ro isolcpus=1-27,29-55,57-83,85-111 nohz_full=1-27,29-55,57-83,85-111 rcu_nocbs=1-27,29-55,57-83,85-111 numa_balancing=disable intel_pstate=disable intel_iommu=on iommu=pt nmi_watchdog=0 audit=0 nosoftlockup processor.max_cstate=1 intel_idle.max_cstate=1 hpet=disable tsc=reliable mce=off console=tty0 console=ttyS0,115200n8