释义 |
virtual storage interruptVSI /segment in secondary storage, locate a place for it in primary storage, read it into primary storage, and adjust table entries to indicate its new location.When a VSI occurs, instruction execution is commonly passed to another program.;程序运行时的一种中断,由于访问不在主存中的一个页或段所引起。在VS I之后,系统例行程序在辅存中找到所需页段,并为其在主存中找到适当的空间,将所需页段读进主存,然后修改表项以指出它的新地址。当VSI发生时,通常将指令执行转到另一个程序。参阅discard, thrashing。 |