Konferenzen und Rahmenprogramm
Xen on Arm: Real-Time Virtualization with Cache Coloring
When developing embedded systems, it is common to have mixed-criticality requirements: one application is critical, and typically comes with real-time requirements, while the other is far less critical and it is often based on Linux. Xen on ARM enables static partitioning configurations with Dom0-less, a recent feature to boot multiple domains in parallel directly from the hypervisor. IRQ latency and real-time are critical enablers, but real-time cannot be guaranteed when the underlying cache is shared across CPU cores: cache interference degrades IRQ latency, causing real-time applications to lose deadlines even on native. This talk will go into details on the issues caused by cache interference on Arm CPU cores; it will introduce Xen Cache Coloring, a new technology to zero cache interference effects between domains. We will demonstrate applications retaining their expected level of IRQ latency under severe stress conditions.
--- Datum: 27.02.2020 Uhrzeit: 10:30 - 11:00 Uhr Ort: Conference Counter NCC Ost