公开(公告)号：US09864696B2

公开(公告)日：2018-01-09

申请号：US15010376

申请日：2016-01-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Ye Li ,  Lixin Zhang ,  Rui Hou ,  Ke Zhang

IPC: G06F12/00 ,  G06F12/0897 ,  G06F12/1027 ,  G06F3/06 ,  G06F12/0811

CPC classification number: G06F12/0897 ,  G06F3/0604 ,  G06F3/064 ,  G06F3/0683 ,  G06F12/0811 ,  G06F12/1027 ,  G06F2212/1016 ,  G06F2212/50 ,  G06F2212/60

Abstract: A multilevel cache-based data read/write method and a computer system. The method includes acquiring a query address of a physical memory data block in which data is to be read/written, acquiring a cache location attribute of the physical memory data block, querying whether a cache is hit until one cache is hit or all caches are missed, where the querying is performed according to the query address in descending order of levels of caches storable for the physical memory data block, and the levels of the caches are indicated by the cache location attribute, and if one cache is hit, reading/writing the data in the query address of the physical memory data block in the hit cache; or, if all caches are missed, reading/writing the data in the query address of the physical memory data block in a memory.

公开(公告)号：US09858192B2

公开(公告)日：2018-01-02

申请号：US14928635

申请日：2015-10-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Lixin Zhang ,  Liuhang Zhang ,  Rui Hou ,  Ke Zhang

IPC: G06F12/00 ,  G06F12/0862

CPC classification number: G06F12/0862 ,  G06F2212/1016 ,  G06F2212/1021 ,  G06F2212/602 ,  G06F2212/6026 ,  G06F2212/608

Abstract: A cross-page prefetching method, apparatus, and system are disclosed, which can improve a prefetching hit ratio of a prefetching device, and further improve efficiency of memory access. The method includes: receiving an indication message, sent by a cache, that a physical address is missing, where the indication message carries a mapped-to first physical address and contiguity information of a first physical page to which the first physical address belongs; acquiring a prefetching address according to the first physical address and a step size that is stored in a prefetching device; and if a page number of a physical page to which the prefetching address belongs is different from a page number of the first physical page, and it is determined, according to the contiguity information of the first physical page, that the first physical page is contiguous, prefetching data at the prefetching address.

公开(公告)号：US20160196073A1

公开(公告)日：2016-07-07

申请号：US15070532

申请日：2016-03-15

Applicant: Huawei Technologies Co., Ltd.

Inventor： Lixin Zhang ,  Cong Wang ,  Rui Hou ,  Ke Zhang

IPC: G06F3/06

CPC classification number: G06F3/0611 ,  G06F3/0644 ,  G06F3/0659 ,  G06F3/0673 ,  G06F13/385

Abstract: A memory segment access method and apparatus relates to the field of computer technologies, which are used to resolve a problem of a relatively low memory access bandwidth caused by relatively low utilization of bandwidth resources in a multichannel memory system. The method includes acquiring, by a first scheduler, a quantity of to-be-sent memory access requests in a second scheduler, and receiving, by the first scheduler, a memory access request, and sending the memory access request through a second memory channel corresponding to the second scheduler.

Abstract translation: 存储器段访问方法和装置涉及计算机技术领域，其用于解决由多通道存储器系统中的带宽资源的较低利用率引起的相对低的存储器访问带宽的问题。 该方法包括由第一调度器获取在第二调度器中的要发送的存储器访问请求的数量，以及由第一调度程序接收存储器访问请求，以及通过第二存储器通道发送存储器访问请求 对应于第二调度器。