Saving and Restoring Implementation Contexts with co-Designed Virtual Machines
نویسندگان
چکیده
It is proposed that a co-designed Virtual Machine Monitor (VMM) can be used for saving and restoring implementation state when context switches occur in a manner that is completely transparent to all conventional software. As an extended case study, we use the VMM to save and restore branch predictor contents. For an 8Kbit gshare predictor and a context switch interval of 100K instructions, the performance benefit is 4% over initializing the predictor to weakly taken following context switches (the best alternative we could find).
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تاریخ انتشار 2001