I. Preface1) Linux Proc file system, through Proc file system adjustment, to achieve performance optimization.2) Linux performance diagnostic tool: describes how to use the diagnostic tool provided by Linux for performance diagnosis.Bold italics
Linux IPC parameter settings-command method: Echo 80>/proc/sys/Vm/overcommit_ratio, etc
Msgmnb
Maximum byte limit for each message queue.
Msgmni
The maximum number of message queues of the entire system.
Msggsz
The size (in bytes) of the message
http://blog.csdn.net/guowake/article/details/3279796
Linux proc File system, through the proc file system to adjust to achieve the purpose of performance optimization.
Shmall and Shmmax parameters of the kernelThe shmmax= is configured with the largest memory segment size------> This setting is much better than sga_max_size.Shmmin= the smallest amount of memory segmentShmmni= the total number of memory segment for
First, the preface
This document aims at the OOP8 production environment, the specific optimization strategy needs to adjust according to the actual situation; This document describes how to optimize performance for Redhat Enterprise Linux in the
I. Preface 1) the LinuxProc file system is optimized by adjusting the Proc file system. 2) Linux performance diagnostic tool: describes how to use the diagnostic tool provided by Linux for performance diagnosis. Bold italics indicate commands that
Shmall and Shmmax parameters of the kernelShmmax= is configured with the largest memory segment size: This setting is much better than sga_max_size.Shmmin= the smallest amount of memory segmentShmmni= the total number of memory segment for the
The most complete sysctl. conf optimization solution in China There are various versions of the sysctl. conf optimization solution on the Internet, most of which are copied and copied, making new users confused. In order to solve this problem, I
1)/proc/sys/vm/block_dumpThis file indicates whether block debug mode is turned on to record all read-write and dirty block writeback actions.Default setting: 0, disable block debug mode2)/proc/sys/vm/dirty_background_ratioThis file represents the
Sysctl is an interface that allows you to change the Linux system you are running. It contains advanced options for TCP/IP stacks and virtual memory systems, which allows experienced administrators to improve compelling system performance. Sysctl
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