Yocto Installer

•  TODO

Debian Installer

To install the cluster, you need to generate an ISO for each host with this repository here.

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In this part, the playbook define the scheduling and the prioritization (see the section).

Kernel

The project uses a real-time kernel, the linux kernel with the PREEMPT_RT patch. So, he needs to have some parameters as:

• processors.max_cstate=1 and intel_idle.max_cstate=1: Discards of all the idle states deeper than idle state 1, for the acpi_idle and intel_idle drivers, respectively (more details here).
• cpufreq.default_governor=performance: Use the performance governor by default (more details here).
• hugepagesz=1G: Uses 1 giga-bytes for HugeTLB pages (more details here).
• skew_tick=1: Helps to smooth jitter on systems with latency-sensitive applications running.
• tsc=reliable: Disables clocksource verification at runtime, as well as the stability checks done at bootup.

More details on the kernel's parameteres here.

Disks

The disk is composed:

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