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1.发明授权Method and apparatus for virtual processor dispatching to a partition based on shared memory pages 失效基于共享存储器页面的虚拟处理器分配到分区的方法和装置公开(公告)号：US08271989B2
公开(公告)日：2012-09-18
申请号：US12027525
申请日：2008-02-07
CPC分类号： G06F9/5027 , G06F9/45558 , G06F9/5077 , G06F12/109 , G06F2009/45583 , G06F2212/656
摘要： The present invention provides a computer implemented method, data processing system, and computer program product for mapping and dispatching virtual processors in a data processing system having at least a first partition and a second partition. The data processing system runs a first partition on a virtual processor during a first timeslice. The data processing system identifies an at least one physical page used by the first partition and the second partition. The data processing system maps the at least one physical page to the first partition and the second partition. The data processing system determines a fitness value based on the mapping. The data processing system dispatches the Virtual processor to the second partition on a second timeslice based on the fitness value, wherein the second timeslice immediately succeeds after the first timeslice, whereby the at least one physical page remains in cache during at least the first timeslice and the second timeslice.
摘要翻译： 本发明提供了一种用于在具有至少第一分区和第二分区的数据处理系统中映射和分派虚拟处理器的计算机实现方法，数据处理系统和计算机程序产品。 数据处理系统在第一时间片段期间在虚拟处理器上运行第一分区。 数据处理系统识别由第一分区和第二分区使用的至少一个物理页面。 数据处理系统将至少一个物理页面映射到第一分区和第二分区。 数据处理系统基于映射确定适应度值。 所述数据处理系统基于所述适合度值将所述虚拟处理器分配到所述第二分区，其中所述第二时间片在所述第一时间片之后立即成功，由此所述至少一个物理页在至少所述第一时间片内保持在高速缓存中，以及 第二个时间片
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2.发明申请METHOD AND APPARATUS FOR VIRTUAL PROCESSOR DISPATCHING TO A PARTITION BASED ON SHARED MEMORY PAGES 失效基于共享存储器页面的虚拟处理器分配到分区的方法和装置公开(公告)号：US20090204959A1
公开(公告)日：2009-08-13
申请号：US12027525
申请日：2008-02-07
IPC分类号： G06F9/455
CPC分类号： G06F9/5027 , G06F9/45558 , G06F9/5077 , G06F12/109 , G06F2009/45583 , G06F2212/656
摘要： The present invention provides a computer implemented method, data processing system, and computer program product for mapping and dispatching virtual processors in a data processing system having at least a first partition and a second partition. The data processing system runs a first partition on a virtual processor during a first timeslice. The data processing system identifies an at least one physical page used by the first partition and the second partition. The data processing system maps the at least one physical page to the first partition and the second partition. The data processing system determines a fitness value based on the mapping. The data processing system dispatches the Virtual processor to the second partition on a second timeslice based on the fitness value, wherein the second timeslice immediately succeeds after the first timeslice, whereby the at least one physical page remains in cache during at least the first timeslice and the second timeslice.
摘要翻译： 本发明提供了一种用于在具有至少第一分区和第二分区的数据处理系统中映射和分派虚拟处理器的计算机实现方法，数据处理系统和计算机程序产品。 数据处理系统在第一时间片段期间在虚拟处理器上运行第一分区。 数据处理系统识别由第一分区和第二分区使用的至少一个物理页面。 数据处理系统将至少一个物理页面映射到第一分区和第二分区。 数据处理系统基于映射确定适应度值。 所述数据处理系统基于所述适合度值将所述虚拟处理器分配到所述第二分区，其中所述第二时间片在所述第一时间片之后立即成功，由此所述至少一个物理页在至少所述第一时间片内保持在高速缓存中，以及 第二个时间片
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3.发明授权Heuristic based affinity dispatching for shared processor partition dispatching 有权用于共享处理器分区调度的基于启发式的亲和性调度公开(公告)号：US07865895B2
公开(公告)日：2011-01-04
申请号：US11419019
申请日：2006-05-18
CPC分类号： G06F9/5033 , G06F9/5077 , G06F2209/508
摘要： A mechanism is provided for determining whether to use cache affinity as a criterion for software thread dispatching in a shared processor logical partitioning data processing system. The server firmware may store data about when and/or how often logical processors are dispatched. Given these data, the operating system may collect metrics. Using the logical processor metrics, the operating system may determine whether cache affinity is likely to provide a significant performance benefit relative to the cost of dispatching a particular logical processor to the operating system.
摘要翻译： 提供了一种用于确定是否使用高速缓存亲和力作为在共享处理器逻辑分区数据处理系统中的软件线程调度的标准的机制。 服务器固件可以存储关于何时和/或多少逻辑处理器被调度的数据。 鉴于这些数据，操作系统可能会收集指标。 使用逻辑处理器度量，操作系统可以确定高速缓存关联性是否可能相对于将特定逻辑处理器调度到操作系统的成本提供显着的性能优点。
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公开(公告)号：US20100115522A1
公开(公告)日：2010-05-06
申请号：US12261275
申请日：2008-10-30
CPC分类号： G06F9/485 , G06F9/4881 , Y02D10/24
摘要： A method, a system and a computer program product for controlling the hardware priority of hardware threads in a data processing system. A Thread Priority Control (TPC) utility assigns a primary level and one or more secondary levels of hardware priority to a hardware thread. When a hardware thread initiates execution in the absence of a system call, the TPC utility enables execution based on the primary level. When the hardware thread initiates execution within a system call, the TPC utility dynamically adjusts execution from the primary level to the secondary level associated with the system call. The TPC utility adjusts hardware priority levels in order to: (a) raise the hardware priority of one hardware thread relative to another; (b) reduce energy consumed by the hardware thread; and (c) fulfill requirements of time critical hardware sections.
摘要翻译： 一种用于控制数据处理系统中硬件线程的硬件优先级的方法，系统和计算机程序产品。 线程优先级控制（TPC）实用程序为硬件线程分配一级和一级以上的硬件优先级。 当硬件线程在没有系统调用的情况下启动执行时，TPC实用程序将启用基于主级别的执行。 当硬件线程在系统调用中启动执行时，TPC实用程序会将执行从主级别动态调整到与系统调用相关联的辅助级别。 TPC实用程序调整硬件优先级，以便：（a）提高一个硬件线程相对于另一个的硬件优先级; （b）减少硬件螺纹消耗的能量; 和（c）满足时间关键硬件部分的要求。
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公开(公告)号：US08930670B2
公开(公告)日：2015-01-06
申请号：US11936456
申请日：2007-11-07
CPC分类号： G06F12/1009 , G06F2212/401
摘要： Illustrated embodiments provide a computer implemented method and data processing system for redispatching a partition by tracking a set of memory pages, belonging to the dispatched partition. In one illustrative embodiment the computer implemented method comprises finding an effective page address to real page address mapping for a page address miss in response to determining the page address miss in a page addressing buffer, and saving the mapping as an entry in an array. The computer implemented method creates a preserved array from the array in response to determining the dispatched partition to be an undispatched partition. The computer implemented method further analyzes of the preserved array for a compressed page in response to determining the undispatched partition is now redispatched, and decompresses the compressed page prior to the partition being redispatched.
摘要翻译： 说明的实施例提供了一种计算机实现的方法和数据处理系统，用于通过跟踪属于所分派的分区的一组存储器页来重新分配分区。 在一个说明性实施例中，计算机实现的方法包括响应于确定页寻址缓冲器中的页面地址未命中而找到页面地址未命中的实际页面地址映射的有效页面地址，并将映射保存为阵列中的条目。 计算机实现的方法从数组中创建一个保留的数组，以响应将分派的分区确定为未分配的分区。 计算机实现的方法进一步分析压缩页面的保留数组，以响应确定未分配的分区现在被重新分配，并在重新分配分区之前解压缩压缩页面。
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公开(公告)号：US20130346967A1
公开(公告)日：2013-12-26
申请号：US13529790
申请日：2012-06-21
IPC分类号： G06F9/455
CPC分类号： G06F9/45558 , G06F9/45533 , G06F9/5077 , G06F2009/4557 , G06F2009/45583
摘要： A technique for determining placement fitness for partitions under a hypervisor in a host computing system having non-uniform memory access (NUMA) nodes. In an embodiment, a partition resource specification is received from a partition score requester. The partition resource specification identifies a set of computing resources needed for a virtual machine partition to be created by a hypervisor in the host computing system. Resource availability within the NUMA nodes of the host computing system is assessed to determine possible partition placement options. A partition fitness score of a most suitable one of the partition placement options is calculated. The partition fitness score is reported to the partition score requester.
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公开(公告)号：US08156498B2
公开(公告)日：2012-04-10
申请号：US12130064
申请日：2008-05-30
IPC分类号： G06F9/46
CPC分类号： G06F9/505 , G06F9/5033 , G06F9/5077
摘要： A mechanism is provided for biasing placement of a software thread on a currently idle and dispatched processor. The operating system starts with the last logical processor on which the software thread ran and determines whether that processor is idle and dispatched and considers each logical processor until a currently dispatched and idle logical processor is found. If a currently dispatched and idle logical processor is not found, then the operating system biases placing the software thread on an idle logical processor.
摘要翻译： 提供了一种用于偏置软件线程在当前空闲和调度的处理器上的布置的机制。 操作系统从软件线程运行的最后一个逻辑处理器开始，并确定该处理器是否空闲和调度，并考虑每个逻辑处理器，直到找到当前调度和空闲的逻辑处理器。 如果没有找到当前调度和空闲的逻辑处理器，则操作系统偏置将软件线程放置在空闲逻辑处理器上。
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8.发明申请Method, Apparatus, and Program Product for Heuristic Based Affinity Dispatching for Shared Processor Partition Dispatching 有权用于共享处理器分区调度的基于启发式的亲和度调度的方法，设备和程序产品公开(公告)号：US20070271563A1
公开(公告)日：2007-11-22
申请号：US11419019
申请日：2006-05-18
IPC分类号： G06F9/46
CPC分类号： G06F9/5033 , G06F9/5077 , G06F2209/508
摘要： A mechanism is provided for determining whether to use cache affinity as a criterion for software thread dispatching in a shared processor logical partitioning data processing system. The server firmware may store data about when and/or how often logical processors are dispatched. Given these data, the operating system may collect metrics. Using the logical processor metrics, the operating system may determine whether cache affinity is likely to provide a significant performance benefit relative to the cost of dispatching a particular logical processor to the operating system.
摘要翻译： 提供了一种用于确定是否使用高速缓存亲和力作为在共享处理器逻辑分区数据处理系统中的软件线程调度的标准的机制。 服务器固件可以存储关于何时和/或多少逻辑处理器被调度的数据。 鉴于这些数据，操作系统可能会收集指标。 使用逻辑处理器度量，操作系统可以确定高速缓存关联性是否可能相对于将特定逻辑处理器调度到操作系统的成本提供显着的性能优点。
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公开(公告)号：US09104453B2
公开(公告)日：2015-08-11
申请号：US13529790
申请日：2012-06-21
CPC分类号： G06F9/45558 , G06F9/45533 , G06F9/5077 , G06F2009/4557 , G06F2009/45583
摘要： A technique for determining placement fitness for partitions under a hypervisor in a host computing system having non-uniform memory access (NUMA) nodes. In an embodiment, a partition resource specification is received from a partition score requester. The partition resource specification identifies a set of computing resources needed for a virtual machine partition to be created by a hypervisor in the host computing system. Resource availability within the NUMA nodes of the host computing system is assessed to determine possible partition placement options. A partition fitness score of a most suitable one of the partition placement options is calculated. The partition fitness score is reported to the partition score requester.
摘要翻译： 一种用于确定具有非均匀存储器访问（NUMA）节点的主计算系统中的管理程序下的分区的放置适合度的技术。 在一个实施例中，从分区评分请求者接收分区资源规范。 分区资源规范识别由主机计算系统中的管理程序创建的虚拟机分区所需的一组计算资源。 评估主计算系统的NUMA节点内的资源可用性，以确定可能的分区放置选项。 计算最合适的一个分区放置选项的分区适合度分数。 分区适应度分数被报告给分区评分请求者。
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公开(公告)号：US08122167B1
公开(公告)日：2012-02-21
申请号：US12851634
申请日：2010-08-06
摘要： A software thread is dispatched for causing the system to poll a device for determining whether a condition has occurred. Subsequently, the software thread is undispatched and, in response thereto, an interrupt is enabled on the device, so that the device is enabled to generate the interrupt in response to an occurrence of the condition, and so that the system ceases polling the device for determining whether the condition has occurred. Eventually, the software thread is redispatched and, in response thereto, the interrupt is disabled on the device, so that the system resumes polling the device for determining whether the condition has occurred.
摘要翻译： 调度软件线程使系统轮询设备以确定是否已经发生条件。 随后，软件线程未分配，并且响应于此，在设备上启用中断，使得设备能够响应于条件的发生而产生中断，并且使得系统停止轮询设备 确定病情是否发生。 最终，软件线程被重新分配，并且响应于此，设备上的中断被禁用，使得系统恢复轮询该设备以确定该条件是否已经发生。
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