Wing-Chi Poon

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A real-time scheduler is robust (sustainable) for a certain task set if its schedulability is preserved under lighter system load by the scheduler. The first part of this paper shows that NPr (non-preemptive) robustness of a zero-concrete periodic task set against increase in period is sufficient to guarantee NPr robustness for all variants of the task set.(More)
As virtualization becomes more common, the need for recursive virtualization is also rising. However, performance degrades exponentially as we go deeper in the number of levels in recursive virtualization. In this paper, one of the biggest challenges of improving the performance of recursive virtualization is explored, namely bounding the time for VMExit(More)
An exotic meson, the π1(1400) with J PC = 1−+, has been seen to decay into a p-wave ηπ system. If this decay conserves flavor SU(3), then it can be shown that this exotic meson must be a four-quark state (qq̄+ qq̄) belonging to a flavor 10 ⊕ 10 representation of SU(3). In contrast, the π1(1600) with a substantial decay mode into η′π is likely to be a member(More)
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