公开(公告)号：US09665493B2

公开(公告)日：2017-05-30

申请号：US14505702

申请日：2014-10-03

申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION

发明人： Kevin J. Ash ,  Lokesh M. Gupta ,  David B. Whitworth ,  Boyan Zhao

IPC分类号： G06F12/00 ,  G06F12/0875 ,  G06F9/52 ,  G06F3/06

CPC分类号： G06F12/0875 ,  G06F3/06 ,  G06F9/52 ,  G06F2212/45

摘要： Exemplary method, system, and computer program product embodiments for increased cache performance using multi-level queues by a processor device. The method includes distributing to each one of a plurality of central processing units (CPUs) workload operations for creating complete tracks from partial tracks, creating sub-queues of the complete tracks for distributing to each one of the CPUs, and creating demote scan tasks based on workload of the CPUs. Additional system and computer program product embodiments are disclosed and provide related advantages.

公开(公告)号：US09542331B2

公开(公告)日：2017-01-10

申请号：US14493008

申请日：2014-09-22

申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION

发明人： Kevin J. Ash ,  Lokesh M. Gupta ,  Kenneth W. Todd ,  Boyan Zhao

IPC分类号： G06F12/08

CPC分类号： G06F12/0895 ,  G06F12/0868

摘要： Mechanisms for concurrent update of data in cache with destage of data from the cache to disk by a processor device. A second copy of the data is established in the cache and on a cache directory. A first copy of the data and the second copy of the data are adjacently ordered in the cache directory. One of the first and second copies is held for an update operation so as to include a latest data modification, while the remaining copy concurrently is used for a destage operation to disk.

摘要翻译： 缓存中的数据并发更新的机制，处理器设备从数据缓存到磁盘的数据。 在缓存和高速缓存目录中建立第二个数据副本。 数据的第一个副本和数据的第二个副本在缓存目录中相邻排序。 保持第一和第二副本中的一个以进行更新操作，以便包括最新的数据修改，而剩余的副本同时用于对盘的去往操作。