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1. 发明授权

US09754007B2 Checkpoint capture and tracking in a high availability system 有权
公开(公告)号：US09754007B2
公开(公告)日：2017-09-05
申请号：US14027795
申请日：2013-09-16
申请人： International Business Machines Corporation
发明人： Stuart Z. Jacobs , David A. Larson , Kyle A. Lucke
IPC分类号： G06F11/14 , G06F17/30 , G06F11/20
CPC分类号： G06F17/30584 , G06F11/1407 , G06F11/1443 , G06F11/1484 , G06F11/2038 , G06F11/2097
摘要： The present disclosure includes a method for transferring checkpoint information of a primary virtual machine from a primary host to a secondary host that includes, by the primary host, capturing checkpoint information from the primary virtual machine to a primary holding buffer on the primary host, generating a first number of partition state records from the checkpoint information, transmitting the first number of partition state records to the secondary host, receiving acknowledgements from the secondary host for a second number of partition state records, and tracking the second number of partition state records acknowledged by the secondary host.

2. 发明授权

US09727358B2 Failover detection and treatment in checkpoint systems 有权
公开(公告)号：US09727358B2
公开(公告)日：2017-08-08
申请号：US14067420
申请日：2013-10-30
申请人： International Business Machines Corporation
发明人： Stuart Z. Jacobs , David A. Larson , Kyle A. Lucke
IPC分类号： G06F9/455 , G06F11/14 , G06F11/07 , G06F9/48
CPC分类号： G06F9/45533 , G06F9/45558 , G06F9/4856 , G06F11/006 , G06F11/0712 , G06F11/14 , G06F11/1484 , G06F11/203 , G06F2009/45591
摘要： A method for treatment of a hypervisor call sequence, in a system having a plurality of hosts, includes assigning a host ID to a plurality of hosts in the system; identifying a first host ID for a host from which a first hypervisor call of a hypervisor call sequence originates; identifying a second host ID for a host from which a second hypervisor call of the hypervisor call sequence originates, wherein the second hypervisor call is a call subsequent to the first hypervisor call; and determining whether the second host ID is equal to the first host ID.

3. 发明授权

US09298622B2 Affinity group access to global data 有权
公开(公告)号：US09298622B2
公开(公告)日：2016-03-29
申请号：US13779912
申请日：2013-02-28
申请人： International Business Machines Corporation
发明人： Stuart Z. Jacobs , David A. Larson
IPC分类号： G06F12/00 , G06F12/08 , G06F9/00 , G06F3/06
CPC分类号： G06F12/0815 , G06F3/0655 , G06F9/00
摘要： A method, system, and computer readable medium to share data on a global basis within a symmetric multiprocessor (SMP) computer system are disclosed. The method may include grouping a plurality of processor cores into a plurality of affinity groups. Global data may be copied into a plurality of group data structures. Each group data structure may correspond to an affinity group. The method may read a first group data structure by a thread executing on a processor core associated with a first affinity group.

4. 发明授权

US09250977B2 Tiered locking of resources 有权
标题翻译：分层锁定资源
公开(公告)号：US09250977B2
公开(公告)日：2016-02-02
申请号：US13834178
申请日：2013-03-15
申请人： International Business Machines Corporation
发明人： Stuart Z. Jacobs , David A. Larson
IPC分类号： G06F12/00 , G06F9/46 , G06F9/52
CPC分类号： G06F9/524 , G06F9/46 , G06F9/526 , G06F12/00
摘要： In an embodiment, a lock command is received from a thread that specifies a resource. If tier status in a nodal lock indicates the nodal lock is currently owned, an identifier of the thread is added to a nodal waiters list, and if the thread's lock wait indicator indicates that the thread owns the nodal lock, then a successful completion status is returned for the lock command to the thread after waiting until a next tier wait indicator in the nodal lock indicates that any thread owns a global lock on the resource. If the tier status indicates no thread holds the nodal lock, the tier status is changed to indicate the nodal lock is owned, and if a global waiters and holder list is empty, an identifier of a node at which the thread executes is added to the global waiters and holder list.
摘要翻译：在一个实施例中，从指定资源的线程接收到锁定命令。如果节点锁中的层状态表示节点锁当前拥有，线程的标识符将添加到节点服务器列表中，并且如果线程的锁等待指示器指示线程拥有节点锁，则成功完成状态为在等待直到下一层等待指示符在节点锁中表示任何线程拥有该资源上的全局锁定后，为该线程返回的锁定命令。如果层状态表示没有线程保存节点锁，则更改层状态以指示节点锁拥有，并且如果全局服务器和持有者列表为空，则将线程执行的节点的标识符添加到全球服务员和持有人名单。

5. 发明授权

US09104496B2 Submitting operations to a shared resource based on busy-to-success ratios 有权
标题翻译：根据繁忙到成功的比例将操作提交给共享资源
公开(公告)号：US09104496B2
公开(公告)日：2015-08-11
申请号：US13837113
申请日：2013-03-15
申请人： International Business Machines Corporation
发明人： Stuart Z. Jacobs , Andrew T. Koch , David A. Larson
IPC分类号： G06F9/455 , G06F9/46 , G06F9/50 , G06F9/48
CPC分类号： G06F9/5077 , G06F9/4887 , G06F9/50 , G06F2209/504 , Y02D10/22
摘要： In an embodiment, an average busy-to-success ratio is calculated for partitions that submitted operations to a shared resource during a first time period. A first busy-to-success ratio for a first partition during the first time period is calculated. If the first busy-to-success ratio is greater than the average busy-to-success ratio and a difference between the first busy-to-success ratio and the average busy-to-success ratio is greater than a threshold amount, a throttle amount for the first partition is increased. A first operation from the first partition during a first time subdivision of a second time period is received. If a number of operations received from the first partition during the first time subdivision of the second time period is greater than the throttle amount for the first partition, a busy indication is returned to the first partition and the first operation is not submitted to the shared resource.
摘要翻译：在一个实施例中，针对在第一时间段期间向共享资源提交操作的分区计算平均忙到成功率。计算在第一时间段期间第一分区的第一个忙到成功率。如果第一个忙到成功率大于平均占线成功率，并且第一繁忙成功率与平均占线成功率之间的差异大于阈值量，则节流阀第一分区的数量增加。接收在第二时间段的第一时间细分期间来自第一分区的第一操作。如果在第二时间段的第一时间细分期间从第一分区接收到的多个操作大于第一分区的油门量，则将忙指示返回到第一分区，并且第一操作未被提交给共享资源。

6. 发明申请

US20150026508A1 MOVING OBJECTS IN A PRIMARY COMPUTER BASED ON MEMORY ERRORS IN A SECONDARY COMPUTER 有权
标题翻译：根据二次计算机中的存储器错误在主计算机中移动对象
公开(公告)号：US20150026508A1
公开(公告)日：2015-01-22
申请号：US13947420
申请日：2013-07-22
申请人： International Business Machines Corporation
发明人： Stuart Z. Jacobs , David A. Larson
IPC分类号： G06F11/20
CPC分类号： G06F11/2094 , G06F11/1658 , G06F11/1666 , G06F11/2035 , G06F11/2048 , G06F11/2082
摘要： In an embodiment, a partition is executed at a primary server, wherein the partition accesses a first memory location at a first memory block address at the primary server. If a first corresponding memory location at a secondary server has an error, wherein the first corresponding memory location at the secondary server corresponds to the first memory location at the primary server, then an object is moved from the first memory location at the primary server to a second memory location at the primary server.
摘要翻译：在一个实施例中，在主服务器处执行分区，其中所述分区以主服务器上的第一存储器块地址访问第一存储器位置。如果辅助服务器上的第一对应的存储器位置具有错误，其中辅助服务器处的第一对应存储器位置对应于主服务器处的第一存储器位置，则将对象从主服务器处的第一存储器位置移动到主服务器上的第二个内存位置。

7. 发明申请

US20140244943A1 AFFINITY GROUP ACCESS TO GLOBAL DATA 有权
公开(公告)号：US20140244943A1
公开(公告)日：2014-08-28
申请号：US13799350
申请日：2013-03-13
申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人： Stuart Z. Jacobs , David A. Larson
IPC分类号： G06F12/14 , G06F12/08
CPC分类号： G06F12/0815 , G06F9/526 , G06F12/0813 , G06F2209/5012 , G06F2212/1024 , G06F2212/1048 , G06F2212/152
摘要： A method, system, and computer readable medium to share data on a global basis within a symmetric multiprocessor (SMP) computer system are disclosed. The method may include grouping a plurality of processor cores into a plurality of affinity groups. The method may include creating hints about the global data in the plurality of group data structures. Each group data structure may correspond to an affinity group. The method may read a first group data structure by a thread executing on a processor core associated with a first affinity group.

8. 发明申请

US20140223233A1 MULTI-CORE RE-INITIALIZATION FAILURE CONTROL SYSTEM 有权
公开(公告)号：US20140223233A1
公开(公告)日：2014-08-07
申请号：US13798423
申请日：2013-03-13
申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人： Peter J. Heyrman , Stuart Z. Jacobs , David A. Larson
IPC分类号： G06F11/14
CPC分类号： G06F11/202 , G06F11/0706 , G06F11/0793 , G06F11/1402 , G06F11/143 , G06F11/22 , G06F2201/815
摘要： A method of a computer system recovering from a core re-initialization failure is described. The method may include automatically detect a core re-initialization failure during a core re-initialization process by a hypervisor. The hypervisor automatically determines whether the core re-initialization failure is a permanent failure. If the core re-initialization failure is a permanent failure, then automatically determine, by the hypervisor, which cores are re-initialized and which cores are indeterminate. Automatically allocate the re-initialized cores between one or more virtual machines by the hypervisor.

9. 发明授权

US10678722B2 Using a decrementer interrupt to start long-running hardware operations before the end of a shared processor dispatch cycle 有权
公开(公告)号：US10678722B2
公开(公告)日：2020-06-09
申请号：US15371090
申请日：2016-12-06
申请人： International Business Machines Corporation
发明人： Stuart Z. Jacobs , David A. Larson , Michael J. Vance
IPC分类号： G06F9/30 , G06F9/455 , G06F12/084 , G06F12/0842 , G06F12/0862 , G06F12/0875 , G06F13/24
摘要： Systems, methods, and computer program products to perform an operation comprising processing a first logical partition on a shared processor for the duration of a dispatch cycle, issuing, by a hypervisor, at a predefined time prior to completion of the dispatch cycle, a lightweight hypervisor decrementer (HDEC) interrupt, and responsive to the lightweight HDEC interrupt, initiating an asynchronous hardware operation on the shared processor prior to completion of the dispatch cycle.

10. 发明授权

US09727357B2 Failover detection and treatment in checkpoint systems 有权
公开(公告)号：US09727357B2
公开(公告)日：2017-08-08
申请号：US14043244
申请日：2013-10-01
申请人： International Business Machines Corporation
发明人： Stuart Z. Jacobs , David A. Larson , Kyle A. Lucke
IPC分类号： G06F9/455 , G06F11/14 , G06F11/07 , G06F9/48
CPC分类号： G06F9/45533 , G06F9/45558 , G06F9/4856 , G06F11/006 , G06F11/0712 , G06F11/14 , G06F11/1484 , G06F11/203 , G06F2009/45591
摘要： A method for treatment of a hypervisor call sequence, in a system having a plurality of hosts, includes assigning a host ID to a plurality of hosts in the system; identifying a first host ID for a host from which a first hypervisor call of a hypervisor call sequence originates; identifying a second host ID for a host from which a second hypervisor call of the hypervisor call sequence originates, wherein the second hypervisor call is a call subsequent to the first hypervisor call; and determining whether the second host ID is equal to the first host ID.

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