本文中未涉及的两个重要并发模型是通信顺序进程(CSP)和软件事务内存(STM)。
Two important concurrency models that are not covered in this article are communicating sequential processes (CSP) and software transactional memory (STM).
根据该输出,可以计算每个事务的排序数目,并可以计算溢出了可用于排序的内存的那部分排序的百分比。
From this, you can calculate the number of sorts per transaction and the percentage of sorts that overflowed the memory that was available to them.
但是,内存中的队列不可靠,所以在发生出价操作的时候,我们同时用一个服务器端事务来捕获出价事件。
However, in memory queues are unreliable so we also capture a bid event using a server side transaction with the bid operation.
其他更改主要针对将可用内存划分出一些必要的缓存,例如包缓存和编目缓存,或者调整短事务的设置(日志记录和排序)。
The other changes are primarily due to dividing up the available memory for necessary caches like the package and catalog cache or adjusting the Settings for short transactions (logging and sorting).
注意,即便是回滚情况,回调函数也必须执行一些清理:从已命名内存删除作为事务一部分的所有记录。
Note that even in the case of a rollback, the callback function must do some cleanup, removing all the records that were part of the transaction from the named memory.
展示了对内存指标的轮询来演示设备指标监控,通过对事务率表格的轮询来演示对特定于应用程序的指标的监控。
A poll of the memory metrics was shown to demonstrate monitoring of device metrics, and a poll of the transaction rate table was shown to demonstrate monitoring of application-specific metrics.
这里,所有流活动在一个技术事务内运行,导航全部在内存内完成,中间状态不会存储到数据库中。
Here the entire set of of flow activities runs within one single technical transaction, navigation is all done in memory, and the intermediate state is not saved to a database.
它采用的方法是从DB 2日志(常常是从非常快速的日志内存缓存)中获取读者事务需要的数据行。
It works by retrieving the data row information that the reader transaction needs from the DB2 logs-usually from the log's memory cache, which is very fast.
事务管理和内存管理比起来没有多大的不同,而且我们看到由于生命周期问题,语言的总体趋势是不再让开发人员负责内存管理。
Transactions are not much different than memory and we see the general trend in languages to removing the responsibility of memory management from developers due to life cycle issues.
这些优化能够实现更高的事务性能、更高的硬件利用率、以及更低的内存占用,所有这些好处有可能带来巨大的成本节约。
These optimizations can result in higher transactional performance, better hardware utilization, and lower memory footprint, altogether adding up to potentially significant cost savings.
根据一份SAP文档,HANA放在内存中的数据由一个记录事务并具有能创建数据库映像的保存点的持久化层提供支持,这让它能够从停电或其它的中断中恢复。
Data held in memory by HANA is backed by a persistence layer that logs transactions and incorporates savepoints that create images of the database, according to an SAP document.
每个事务对于CPU、内存、磁盘空间和其他Domino资源的需求各不相同。
Each transaction has its own unique requirements for CPU, memory, disk utilization and other Domino resources.
到那时,pull数据可能需要某种重定向的内存访问,而不是真正绑定到数据库,然后开始一个事务。
At that point, pulling data may involve some kind of redirected memory access as opposed to actually binding to a database and initiating a transaction.
HSQLDB将所有表和索引数据放在内存中,将所有发出的sql语句保存到一个名为database .script的文件中,该文件同时也充当着事务日志的角色。
HSQLDB keeps all table and index data in memory, saving all SQL statements issued into a file named database.script, which also ACTS as the transaction log.
它们在单个事务中运行,其状态仅保存在内存中,而不能持久性地保存到流程的服务器数据库中。
They run in a single transaction and their state is only hold in memory and not persisted to the process server database.
注意,日志缓冲区位于数据库的共享内存中,这种机制确保每个事务被记录到日志文件中。
What essentially we can get away with is that log buffer located in database shared memory is the mechanism provided to ensure each transaction is logged to log files.
那些内部表的目的和功能是为了记录共享内存资源的状态和使用,例如缓冲区、块、dbspace、事务等。
The purpose and function of those internal tables is to keep track of shared-memory resources status and usage such as buffers, chunks, dbspaces, transactions and so on.
通过Scala的forcomprehension支持软件事务性内存(Soft ware Transactional Memory)概念。
Support for the Software Transactional Memory concept through use of Scala's for comprehension.
该方法采用磁盘日志和内存日志的结构,通过对事务的管理,能满足集群文件系统中元数据高可用性的要求。
This method used the structure of disk journal and memory journal, and adopted a mechanism of transaction, so it could meet the request of high availability in file system metadata.
根据推算原则估计业务事务,利用TPC - C推算对系统内存和外存存储容量需求进行了计算。
We use computing principles to estimate affairs of business and use TPC-C to compute storage requirement of system memory and outer storage.
对分布式内存数据库的恢复进行了讨论,内容包括:转储、分布式事务提交及日志。
The recovery of the distributed main memory database is discussed in the thesis, including:dump?distributed transaction commitment and log.
分布式系统,可伸缩的,容错的,分享内存,事务,二阶段提交。
Distributed systems, scalability, fault tolerance, Shared memory, transactions, two-phase commit.
满足程序的内存请求是语言运行时库与内核之间的共同事务。
Satisfying memory requests is thus a joint affair between the language runtime and the kernel.
超存取过程使得事务可以在它的全部数据进入内存以前启动,减少了错过截止期的概率。
The "super access process" makes a transaction started before its whole dataset placed in ARTs-EDB, reducing the probability of missing deadline.
当数据库中的项目数目较大且事务数量巨大时,频繁模式增长算法内存开销很大,可能导致内存空间不足的现象。
When there are a great many of items and transactions in the database, frequent-pattern growth algorithm needs more additional computer memory, which may cause the lack of memory.
本发明还公开了一种影子内存的备份装置,包括冲突判定模块、合并模块、加载模块、事务执行模块,以及提交模块。
The invention also discloses a backup device for the shadow memory, comprising a conflict judging module, a merging module, a loading module, an affair implementing module and a submitting module.
而要实现内存受限的内存数据库,就是在内存数据库不能容纳全部外存数据库的前提下,保证一个事务执行前,其数据被装入内存。
But the MMDB with limited main memory should assure that before running a transaction, all data accessed by it should be loaded into the main memory.
限制半提交事务缓冲区大小方法可以减少OCC-CS算法额外消耗的系统内存,而且不会影响系统的性能。
The extra memory spent in OCC-CS can be reduced by restricting the size of the semi-committed set which doesn't impact the performance of OCC-CS.
限制半提交事务缓冲区大小方法可以减少OCC-CS算法额外消耗的系统内存,而且不会影响系统的性能。
The extra memory spent in OCC-CS can be reduced by restricting the size of the semi-committed set which doesn't impact the performance of OCC-CS.
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