Timing requirements on multi-processing and reconfigurable embedded systems with multiple environments

Alonso, Sara; Lázaro, Jesús; Jiménez, Jaime; Muguira, Leire; Bidarte, Unai

doi:10.1109/dcis58620.2023.10335983

Cited by 1 publication

(3 citation statements)

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“…Xen usually allocates just one vCPU to each domain, thus containing the information related to scheduling and event channels. Figure 2 [10] shows the architecture of Xen.…”

Section: Xen Hypervisormentioning

confidence: 99%

“…Then, the OpenAMP master loads the remote processor firmware into the memory location. Finally, the OpenAMP master starts the remote processor, waits for it, and establishes a communication channel with it (Figure 4 [10]). OpenAMP can be complementary to hypervisors.…”

Section: Openampmentioning

confidence: 99%

“…where t is the total latency of the interrupt, t irq is the time required by the hardware to process the interrupt source and call the ISR, t hyp is the latency introduced by the hypervisor, t os is the delay introduced by the OS's internal mechanisms, and t user is the time for a task to be executed in response to the interrupt after it is handled. The parameter t hyp can be very important, as it depends on the state and utilization of all the VMs and CPUs [10]. 979-…”

mentioning

confidence: 99%

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Interrupt Latency Accurate Measurement in Multiprocessing Embedded Systems by Means of a Dedicated Circuit

Alonso,

Muguira,

Garate

et al. 2024

Electronics

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Modern multiprocessing embedded applications require, in many cases, two different environments on the same platform: one that meets real-time requirements and another one with a general purpose operating system. Although several technologies can be used, two of the most popular are virtualization based on hypervisors and asymmetric multiprocessing software. However, using these tools introduces latency, which must be measured to verify compliance with real-time requirements. With the aim of facilitating these measurements, this work provides a hardware tool that is more precise and easier to use than other existing software solutions. The paper also studies the interrupt latency generated by different hypervisors and asymmetric multiprocessing frameworks in a Zynq UltraScale+ platform. This research work facilitates the accurate study of the temporal response of multiprocessor embedded systems, which allows for evaluating their suitability for applications with real-time requirements.

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“…Xen usually allocates just one vCPU to each domain, thus containing the information related to scheduling and event channels. Figure 2 [10] shows the architecture of Xen.…”

Section: Xen Hypervisormentioning

confidence: 99%

Section: Openampmentioning

confidence: 99%

mentioning

confidence: 99%

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