Invention Grant
US09069891B2 Hardware enabled performance counters with support for operating system context switching
有权
支持硬件的性能计数器,支持操作系统上下文切换
- Patent Title: Hardware enabled performance counters with support for operating system context switching
- Patent Title (中): 支持硬件的性能计数器,支持操作系统上下文切换
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Application No.: US12684190Application Date: 2010-01-08
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Publication No.: US09069891B2Publication Date: 2015-06-30
- Inventor: Valentina Salapura , Robert W. Wisniewski
- Applicant: Valentina Salapura , Robert W. Wisniewski
- Applicant Address: US NY Armonk
- Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
- Current Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
- Current Assignee Address: US NY Armonk
- Agency: Scully, Scott, Murphy and Presser, P.C.
- Agent Daniel P. Morris, Esq.
- Main IPC: G06F15/00
- IPC: G06F15/00 ; G06F7/38 ; G06F9/00 ; G06F9/44 ; G06F11/34 ; G06F9/46

Abstract:
A device for supporting hardware enabled performance counters with support for context switching include a plurality of performance counters operable to collect information associated with one or more computer system related activities, a first register operable to store a memory address, a second register operable to store a mode indication, and a state machine operable to read the second register and cause the plurality of performance counters to copy the information to memory area indicated by the memory address based on the mode indication.
Public/Granted literature
- US20110173503A1 HARDWARE ENABLED PERFORMANCE COUNTERS WITH SUPPORT FOR OPERATING SYSTEM CONTEXT SWITCHING Public/Granted day:2011-07-14
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