quantitative evaluation of embedded systems
DESCRIPTION
Quantitative Evaluation of Embedded Systems. Latency as a throughput constraint. Latency through periodic scheduling. T output = 8ms. T input = 34ms. D. S. δ. 34ms. μ = 22ms. Adding a feedback loop. L. Periodic schedule is unchanged iff MCM is unchanged. β. α. T output = 8ms. - PowerPoint PPT PresentationTRANSCRIPT
Quantitative Evaluation of Embedded Systems
Latency as a throughput constraint
Latency through periodic scheduling
μ = 22ms
STinput = 34ms Toutput = 8ms
D34ms
δ
Adding a feedback loop
μ = 22ms
STinput = 34ms Toutput = 8ms
D34ms
L
δ
βα
Periodic schedule is unchangediff
MCM is unchanged
Latency as a throughput constraint
μ = 22ms
S D?
L
δ
βα
βμ ≥ Toutput + Eoutput + α – Tinput
Delayed latency ≤ Toutput + Eoutput – Tinput + δμ≤ (β+δ)μ – α