公开(公告)号：US20190004916A1

公开(公告)日：2019-01-03

申请号：US16026870

申请日：2018-07-03

Applicant: Intel Corporation

Inventor： Raul Martinez ,  Enric Gibert Codina ,  Pedro Lopez ,  Marti Torrents Lapuerta ,  Polychronis Xekalakis ,  Georgios Tournavitis ,  Kyriakos A. Stavrou ,  Demos Pavlou ,  Daniel Ortega ,  Alejandro Martinez Vicente ,  Pedro Marcuello ,  Grigorios Magklis ,  Josep M. Codina ,  Crispin Gomez Requena ,  Antonio Gonzalez ,  Mirem Hyuseinova ,  Christos Kotselidis ,  Fernando Latorre ,  Marc Lupon ,  Carlos Madriles

IPC: G06F11/30 ,  G06F12/0862 ,  G06F11/34

Abstract: A combination of hardware and software collect profile data for asynchronous events, at code region granularity. An exemplary embodiment is directed to collecting metrics for prefetching events, which are asynchronous in nature. Instructions that belong to a code region are identified using one of several alternative techniques, causing a profile bit to be set for the instruction, as a marker. Each line of a data block that is prefetched is similarly marked. Events corresponding to the profile data being collected and resulting from instructions within the code region are then identified. Each time that one of the different types of events is identified, a corresponding counter is incremented. Following execution of the instructions within the code region, the profile data accumulated in the counters are collected, and the counters are reset for use with a new code region.