prefetch buffer

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Sqlplus downlink prefetch features

Generally, each data block accessed by the database engine generates at least one logical read. Row prefetch is closely related to logical read. Row prefetch refers to when the client obtains data from the databaseYou can use a single row or

7.3 hardware prefetching speculative execution in High Performance Computer ubuntures

7.3 hardware prefetching speculative execution in High Performance Computer ubunturesThis section describes hardware data prefetch. Data prefetch is divided into two ends: processor end and memory end. The processor end is mainly used for prefetch

Cross-platform Caffe and I/O model and parallel scenario (iii)

3. Caffe I/O model The Caffe supports GPU acceleration mode, which requires more efficiency in the I/O model. Caffe through the introduction of multiple pre-buffering to compensate for the large gap between memory and video bandwidth, using main

Top 10 DB2 optimization techniques for flying Databases

Hchao, a moderator of the IBMDB2 database Professional Forum, once published a blog post to help DB2DBA avoid performance disasters and achieve high performance. I have summarized a fault diagnosis process for our customers, users, and DB2 experts.

Let the database fly up ten DB2 optimization techniques

DB2 is a series of relational database management systems exported by IBM, which serve on different operating system platforms. We will explain the DB2 ten optimization techniques.To help DB2 DBAs avoid performance disasters and get high performance,

Top 10 DB2 optimization techniques for flying Databases

For helpDB2DBA avoids performance disasters and achieves high performance. I have summarized a fault diagnosis process for our customers, users, and DB2 experts. The following describes in detail the 10 most important performance improvement

The Linux kernel's file pre-read detailed

Linux file prefetching algorithm the development of disk I/O performance lags far behind CPU and memory, thus becoming a main bottleneck of modern computer system. Prefetching can effectively reduce the number of disk seek and the application of I/O

Sybase Performance Diagnostics Sp_sysmon data caching

This article describes the adaptive server system through the Sp_sysmon of the operation of a comprehensive system to understand, is conducive to better understanding of system performance, more effective system management, rational use and

The story behind malloc

This paper mainly analyzes the memory and I/O-related system calls and library functions of the implementation of the principle, according to the principle of the use of the need to pay attention to the problem and the focus of optimization, this

Branch Prediction)

Branch prediction ): This is an advanced processing method starting from the P5 era to handle pipeline failures caused by the if-then-else command. The CPU determines the direction of the program branch, it can speed up operations. When the

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