Initial Values for On-line Response Time Calculations
نویسندگان
چکیده
• Basic (discrete) model – Set Γ of n independent, periodic tasks τ1,..., τn; – with periods Ti, deadlines Di, worst-case computation times Ci, and phasing φi; – where Di ≤ Ti, and {Ti, Di, Ci} ∈ Z+; – arbitrary phasings. • Necessary (but insufficient) test for Γ: – Liu & Layland: Un = ∑j≤n Cj/Tj ≤ 1 • Sufficient (but unnecessary) test for Γ for RM: – Liu & Layland (LL(n)): Un ≤ n(21/n – 1) – Bini & Buttazzo2 (HB(n)): ∏j ≤ n (Cj/Tj + 1) ≤ 2
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