초록 ▼

An apparatus and method for cache fencing allows programmatic control of the access and duration of stay of selected executables within processor cache. In one example, an instruction set implementing a virtual machine may store each instruction in a single cache line as a compiled, linked loaded im

An apparatus and method for cache fencing allows programmatic control of the access and duration of stay of selected executables within processor cache. In one example, an instruction set implementing a virtual machine may store each instruction in a single cache line as a compiled, linked loaded image. After loading, cache fencing is conducted to prevent the cache from flushing the contents or replacing the contents of any cache line. Typically, in so doing, attributes associated with pages in physical memory are employed. The attributes include an "uncacheable" attribute flag, which is set for the entire contents of physical memory except that containing the selected executables which are intended to remain within cache memory. The attributes may also include page sizing attributes which are utilized to define pages that contain interpreter instructions and pages that do not contain interpreter instructions.

대표청구항 ▼

1. A memory device comprising data structures storing executables for executing by a processor operably connected to the memory device and a processor cache, the data structures comprising:an operating system structure containing an operating system having a scheduler; a pin manager structure contai

1. A memory device comprising data structures storing executables for executing by a processor operably connected to the memory device and a processor cache, the data structures comprising:an operating system structure containing an operating system having a scheduler; a pin manager structure containing a driver effective to hook the driver into the scheduler and to control persistence of the contents of the processor cache; and a page attribute manager effective to define pages containing interpreter instructions and pages not containing interpreter instructions and to set the pages containing interpreter instructions as cacheable and the pages not containing interpreter instructions as noncacheable.