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IPCCC
1999
IEEE

Accurately modeling speculative instruction fetching in trace-driven simulation

12 years 4 months ago
Accurately modeling speculative instruction fetching in trace-driven simulation
Performance evaluation of modern, highly speculative, out-of-order microprocessors and the corresponding production of detailed, valid, accurate results have become serious challenges. A popular evaluation methodology is trace-driven simulation which provides the advantage of a highly portable simulator that is independent of the constraints of the trace generation system. While developing and maintaining a trace-driven simulator is relatively easier than other alternatives, a primary drawback is the inability to accurately simulate speculative instruction fetching and subsequent execution. Fetching from an incorrect path occurs often in a speculative processor, however it is di cult to capture this information in a trace. This paper investigates a scheme to accurately model instruction fetching within a trace-driven framework. This is accomplished by recreating an approximate copy of the object code segment, which we call resurrected code, using a preliminary pass through the trace. ...
R. Bhargava, L. K. John, F. Matus
Added 03 Aug 2010
Updated 03 Aug 2010
Type Conference
Year 1999
Where IPCCC
Authors R. Bhargava, L. K. John, F. Matus
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