公开(公告)号：EP2979189A4

公开(公告)日：2016-10-19

申请号：EP13879895

申请日：2013-03-28

Applicant: HEWLETT PACKARD ENTPR DEV LP

Inventor： FARABOSCHI PABLO ,  BOEHM HANS ,  CHAKRABARTI DHRUVA ,  MURALIMANOHAR NAVEEN

IPC: G06F12/0804 ,  G06F3/06

CPC classification number: G06F12/0893 ,  G06F3/061 ,  G06F3/0638 ,  G06F3/0679 ,  G06F12/0804 ,  G06F2212/1016 ,  G06F2212/202 ,  G06F2212/60

Abstract: A method for performing memory operations is provided. One or more processors can determine that at least a portion of data stored in a cache memory of the one or more processors is to be stored in the main memory. One or more ranges of addresses of the main memory is determined that correspond to a plurality of cache lines in the cache memory. A set of cache lines corresponding to addresses in the one or more ranges of addresses is identified, so that data stored in the identified set can be stored in the main memory. For each cache line of the identified set having data that has been modified since that cache line was first loaded to the cache memory or since a previous store operation, data stored in that cache line is caused to be stored in the main memory.

Abstract translation: 提供了一种执行存储器操作的方法。 一个或多个处理器可以确定存储在一个或多个处理器的高速缓冲存储器中的数据的至少一部分将被存储在主存储器中。 确定与主存储器中的多个高速缓存行相对应的主存储器的一个或多个地址范围。 识别与一个或多个地址范围中的地址相对应的一组缓存行，使得存储在所识别的集合中的数据可以存储在主存储器中。 对于具有由于该高速缓存线首先被加载到高速缓存存储器而被修改的数据的已识别集合的每个高速缓存行，或者由于先前存储操作，存储在该高速缓存行中的数据被存储在主存储器中。

公开(公告)号：EP2909724A4

公开(公告)日：2016-07-20

申请号：EP12886518

申请日：2012-10-19

Applicant: HEWLETT PACKARD ENTPR DEV LP

Inventor： CHAKRABARTI DHRUVA

IPC: G06F9/38 ,  G06F11/14

CPC classification number: G06F3/0619 ,  G06F3/0655 ,  G06F3/0679 ,  G06F9/3863 ,  G06F11/1435 ,  G06F11/1438 ,  G06F11/1469 ,  G06F11/1471 ,  G06F11/2069 ,  G06F11/2082 ,  G06F2201/82 ,  G06F2201/84 ,  G06F2201/855 ,  G06F2206/1014

Abstract: Crash recovery with asynchronous consistent snapshots in persistent memory stores of a processing environment. A processing environment includes a user program and infrastructure-maintained data structures. The infrastructure-maintained data structures include a log of updates made to program data structures and a snapshot of the state of the program data structures. The systems and methods include writing log entries in the log to a transient memory. The log entries correspond to store instructions and memory management instructions operating on a nonvolatile memory (NVM), and input/output (I/O) operations executed by program instructions of the user program. Each of the log entries represents an effect of a corresponding operation in the program instructions. The systems and methods also include creating a snapshot in the NVM after a consistent program point based on the log of updates. The snapshot provides a rollback position during restart following a crash.

Abstract translation: 在处理环境的持久存储器存储中使用异步一致的快照进行崩溃恢复。 处理环境包括用户程序和基础设施维护的数据结构。 基础设施维护的数据结构包括对程序数据结构进行更新的日志和程序数据结构状态的快照。 系统和方法包括将日志中的日志条目写入瞬态内存。 日志条目对应于在非易失性存储器（NVM）上操作的存储指令和存储器管理指令以及由用户程序的程序指令执行的输入/输出（I / O）操作。 每个日志条目表示程序指令中相应操作的影响。 系统和方法还包括在基于更新日志的一致程序点之后在NVM中创建快照。 快照在崩溃后重新启动时提供回滚位置。