发明授权
US08539455B2 System for and method of capturing performance characteristics data from a computer system and modeling target system performance
有权
从计算机系统捕获性能特征数据的系统和方法以及对目标系统性能的建模
- 专利标题: System for and method of capturing performance characteristics data from a computer system and modeling target system performance
- 专利标题(中): 从计算机系统捕获性能特征数据的系统和方法以及对目标系统性能的建模
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申请号: US12055996申请日: 2008-03-26
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公开(公告)号: US08539455B2公开(公告)日: 2013-09-17
- 发明人: Erik Berg , Erik Hagersten , Hakan Zeffer , Magnus Vesterlund , Mats Nilsson , Mikael Petterson
- 申请人: Erik Berg , Erik Hagersten , Hakan Zeffer , Magnus Vesterlund , Mats Nilsson , Mikael Petterson
- 申请人地址: US CO Boulder
- 专利权人: Rogue Wave Software, Inc.
- 当前专利权人: Rogue Wave Software, Inc.
- 当前专利权人地址: US CO Boulder
- 主分类号: G06F9/44
- IPC分类号: G06F9/44 ; G06F15/00 ; G06F12/00
摘要:
A system, method, and computer program product that captures performance-characteristic data from the execution of a program and models system performance based on that data. Performance-characterization data based on easily captured reuse distance metrics is targeted. Reuse distance for one memory operation may be measured as the number of memory operations that have been performed since the memory object it accesses was last accessed. Separate call stacks leading up to the same memory operation are identified and statistics are separated for the different call stacks. Methods for efficiently capturing this kind of metrics are described. These data can be refined into easily interpreted performance metrics, such as performance data related to caches with LRU replacement and random replacement strategies in combination with fully associative as well as limited associativity cache organizations. Methods for assessing cache utilization as well as parallel execution are covered. The method includes modeling multithreaded memory systems and detecting false sharing coherence misses.
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