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1. 发明授权

US09286089B2 Just-in time expensive compilation hints 有权
标题翻译：刚刚的时间昂贵的汇编提示
公开(公告)号：US09286089B2
公开(公告)日：2016-03-15
申请号：US14162929
申请日：2014-01-24
申请人： International Business Machines Corporation
发明人： Marius Pirvu
IPC分类号： G06F9/45 , G06F9/455
CPC分类号： G06F8/4441 , G06F9/45516 , G06F9/4552
摘要： Using stored information about the compilation environment during compilation of a code segment to improve performance of just-in-time compilers. A set of characteristic(s) of a compilation environment is measured during compilation of a code segment. Information that may be relevant to how the compilation is performed is derived from at least one of the measured characteristics and stored in a persistent storage device. Upon a subsequent request to compile that code segment, the information is retrieved and used to change compilation behavior. The set of characteristic(s) relate to at least either compilation backlog or peak memory usage. The changed compilation behavior involves at least adjusting the scheduling of the subsequent compilation request or adjusting the compiler optimization level.
摘要翻译：在编译代码段期间使用有关编译环境的存储信息，以提高即时编译器的性能。在编译代码段期间测量一组编译环境的特征。可能与如何执行编译相关的信息来源于所测量的特征中的至少一个并存储在持久存储设备中。在后续请求编译该代码段时，将检索该信息并用于更改编译行为。特征集合至少与编译积压或峰值存储器使用有关。改变的编译行为至少调整后续编译请求的调度或调整编译器优化级别。

2. 发明授权

US11188354B1 Sharing cached class data in a containerized environment 有权
公开(公告)号：US11188354B1
公开(公告)日：2021-11-30
申请号：US17029483
申请日：2020-09-23
申请人： International Business Machines Corporation
发明人： Anyang Yu , Dhruv Chopra , Alen Badel , Vijay Sundaresan , Marius Pirvu , Michael Dawson , Daniel Heidinga
IPC分类号： G06F9/44 , G06F9/445 , G06F8/65
摘要： Embodiments of the present invention comprise a class sharing orchestrator (CSO) operating as a subsystem of a container orchestrator. The CSO manages sharing of class data among containerized applications to improve startup performance, CPU consumption and memory footprint. The CSO stores application class data in a shared class cache (SCC). The CSO provides a compatible SCC to every deployed application running within the CSO's purview. The CSO collects SCC data from running applications, and processes the data offline to continuously improve the quality of SCCs provided to each deployment, while causing minimum impact to running applications. The CSO combines updates from running applications of a given type to generate an improved quality SCC for use by newly launched applications of the same type. The CSO comprises an SCC update mechanism that optimizes the size, and network traffic, associated with SCC data exchange, and guarantees SCC quality improves over time.

3. 发明授权

US10725914B2 Lightweight mechanisms for selecting infrequently executed methods for eviction from code cache 有权
公开(公告)号：US10725914B2
公开(公告)日：2020-07-28
申请号：US16399389
申请日：2019-04-30
申请人： International Business Machines Corporation
发明人： Marius Pirvu
IPC分类号： H01L35/34 , G06F12/0808 , G06F12/1009 , G06F12/128 , G06F11/34 , G06F12/0875 , G06F12/122 , G06F11/30 , G06F12/12
摘要： An infrequently used method is selected for eviction from a code cache repository by accessing a memory management data structure from an operating system, using the data structure to identify a first set of pages that are infrequently referenced relative to a second set of pages, determining whether or not a page of the first set of pages is part of a code cache repository and includes at least one method, in response to the page of the first set of pages being part of the code cache repository and including at least one method, flagging the at least one method as a candidate for eviction from the code cache repository, determining whether or not a code cache storage space limit has been reached for the code cache repository, and, in response to the storage space limit being reached, evicting the at least one flagged method from the code cache repository.

4. 发明授权

US10318421B2 Lightweight mechanisms for selecting infrequently executed methods for eviction from code cache 有权
公开(公告)号：US10318421B2
公开(公告)日：2019-06-11
申请号：US15485981
申请日：2017-04-12
申请人： International Business Machines Corporation
发明人： Marius Pirvu
IPC分类号： G06F12/0808 , G06F12/1009 , G06F12/128 , G06F12/12
摘要： An infrequently used method is selected for eviction from a code cache repository by accessing a memory management data structure from an operating system, using the data structure to identify a first set of pages that are infrequently referenced relative to a second set of pages, determining whether or not a page of the first set of pages is part of a code cache repository and includes at least one method, in response to the page of the first set of pages being part of the code cache repository and including at least one method, flagging the at least one method as a candidate for eviction from the code cache repository, determining whether or not a code cache storage space limit has been reached for the code cache repository, and, in response to the storage space limit being reached, evicting the at least one flagged method from the code cache repository.

5. 发明申请

US20180300243A1 Lightweight Mechanisms for Selecting Infrequently Executed Methods for Eviction from Code Cache 审中-公开
公开(公告)号：US20180300243A1
公开(公告)日：2018-10-18
申请号：US15485981
申请日：2017-04-12
申请人： International Business Machines Corporation
发明人： Marius Pirvu
IPC分类号： G06F12/0808 , G06F12/1009 , G06F12/128
CPC分类号： G06F12/0808 , G06F12/1009 , G06F12/128 , G06F2212/621 , G06F2212/69
摘要： An infrequently used method is selected for eviction from a code cache repository by accessing a memory management data structure from an operating system, using the data structure to identify a first set of pages that are infrequently referenced relative to a second set of pages, determining whether or not a page of the first set of pages is part of a code cache repository and includes at least one method, in response to the page of the first set of pages being part of the code cache repository and including at least one method, flagging the at least one method as a candidate for eviction from the code cache repository, determining whether or not a code cache storage space limit has been reached for the code cache repository, and, in response to the storage space limit being reached, evicting the at least one flagged method from the code cache repository.

6. 发明授权

US10445075B2 Just-in-time expensive compilations hints 有权
公开(公告)号：US10445075B2
公开(公告)日：2019-10-15
申请号：US15616958
申请日：2017-06-08
申请人： International Business Machines Corporation
发明人： Marius Pirvu
IPC分类号： G06F9/455 , G06F8/41
摘要： Using stored information about the compilation environment during compilation of a code segment to improve performance of just-in-time compilers. A set of characteristic(s) of a compilation environment is measured during compilation of a code segment. Information that may be relevant to how the compilation is performed is derived from at least one of the measured characteristics and stored in a persistent storage device. Upon a subsequent request to compile that code segment, the information is retrieved and used to change compilation behavior. The set of characteristic(s) relate to at least either compilation backlog or peak memory usage. The changed compilation behavior involves at least adjusting the scheduling of the subsequent compilation request or adjusting the compiler optimization level.

7. 发明申请

US20160085532A1 JUST-IN-TIME EXPENSIVE COMPILATION HINTS 有权
公开(公告)号：US20160085532A1
公开(公告)日：2016-03-24
申请号：US14962068
申请日：2015-12-08
申请人： International Business Machines Corporation
发明人： Marius Pirvu
IPC分类号： G06F9/45 , G06F9/455
CPC分类号： G06F8/4441 , G06F9/45516 , G06F9/4552
摘要： Using stored information about the compilation environment during compilation of a code segment to improve performance of just-in-time compilers. A set of characteristic(s) of a compilation environment is measured during compilation of a code segment. Information that may be relevant to how the compilation is performed is derived from at least one of the measured characteristics and stored in a persistent storage device. Upon a subsequent request to compile that code segment, the information is retrieved and used to change compilation behavior. The set of characteristic(s) relate to at least either compilation backlog or peak memory usage. The changed compilation behavior involves at least adjusting the scheduling of the subsequent compilation request or adjusting the compiler optimization level.

8. 发明授权

US09268543B1 Efficient code cache management in presence of infrequently used complied code fragments 有权
标题翻译：存在不经常使用的已编码代码片段的高效代码缓存管理
公开(公告)号：US09268543B1
公开(公告)日：2016-02-23
申请号：US14493503
申请日：2014-09-23
申请人： International Business Machines Corporation
发明人： Patrick R. Doyle , Marcel Mitran , Marius Pirvu , Kevin A. Stoodley , Vijay Sundaresan
IPC分类号： G06F9/45
CPC分类号： G06F9/45525
摘要： A process, a computer program product, and a computer system for efficient code cache management implemented by a just-in-time compiler are provided. Embodiments of the present invention provide a practical approach to compile effectively for methods that are frequently executed over a short time period but are subsequently not executed frequently. The disclosed approach reduces the detrimental effects of compilation of such infrequently executed methods on throughput and garbage collection pause times.
摘要翻译：提供了一种过程，计算机程序产品和用于由即时编译器实现的有效代码高速缓存管理的计算机系统。本发明的实施例提供了一种有效地编译在短时间内频繁执行但随后不经常执行的方法的实用方法。所公开的方法减少了这种不经常执行的方法对吞吐量和垃圾回收暂停时间的编译的不利影响。

9. 发明申请

US20190258571A1 LIGHTWEIGHT MECHANISMS FOR SELECTING INFREQUENTLY EXECUTED METHODS FOR EVICTION FROM CODE CACHE 审中-公开
公开(公告)号：US20190258571A1
公开(公告)日：2019-08-22
申请号：US16399389
申请日：2019-04-30
申请人： International Business Machines Corporation
发明人： Marius Pirvu
IPC分类号： G06F12/0808 , G06F11/34 , G06F12/128 , G06F12/0875 , G06F12/1009 , G06F12/122
摘要： An infrequently used method is selected for eviction from a code cache repository by accessing a memory management data structure from an operating system, using the data structure to identify a first set of pages that are infrequently referenced relative to a second set of pages, determining whether or not a page of the first set of pages is part of a code cache repository and includes at least one method, in response to the page of the first set of pages being part of the code cache repository and including at least one method, flagging the at least one method as a candidate for eviction from the code cache repository, determining whether or not a code cache storage space limit has been reached for the code cache repository, and, in response to the storage space limit being reached, evicting the at least one flagged method from the code cache repository.

10. 发明授权

US09710246B2 Just-in-time expensive compilation hints 有权
公开(公告)号：US09710246B2
公开(公告)日：2017-07-18
申请号：US14962068
申请日：2015-12-08
申请人： International Business Machines Corporation
发明人： Marius Pirvu
IPC分类号： G06F9/45 , G06F9/455
CPC分类号： G06F8/4441 , G06F9/45516 , G06F9/4552
摘要： Using stored information about the compilation environment during compilation of a code segment to improve performance of just-in-time compilers. A set of characteristic(s) of a compilation environment is measured during compilation of a code segment. Information that may be relevant to how the compilation is performed is derived from at least one of the measured characteristics and stored in a persistent storage device. Upon a subsequent request to compile that code segment, the information is retrieved and used to change compilation behavior. The set of characteristic(s) relate to at least either compilation backlog or peak memory usage. The changed compilation behavior involves at least adjusting the scheduling of the subsequent compilation request or adjusting the compiler optimization level.

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