check ram linux

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Why is the server so slow? CPU, RAM, and disk I/O resources are exhausted, and ram is used up

Why is the server so slow? CPU, RAM, and disk I/O resources are exhausted, and ram is used up Machine running is slow because it consumes too many system-specific resources. The main resources of the system include CPU, RAM, disk I/O, and network.

Why is the server so slow? Depleted CPU, RAM, and disk I/O resources

Note: This content is excerpted from the "DevOps Troubleshooting: Best Practices for Linux server Operations" book System load The average system load is probably the first basic metric to use when solving problems that cause the

ARM Linux Startup Process Analysis

Abstract: The portability of Embedded Linux allows us to see it on various electronic products. Linux boot processes vary for processors of different architectures. This article takes the S3C2410 ARM processor as an example to analyze the execution

Linux Kernel Startup Process and bootloader (Overview)

  1. Linux kernel Startup Process OverviewAn embedded Linux system can be divided into four parts: Boot Loader, Linux kernel, file system, and application. Bootloader is the first code executed after the system is started or reset. It is mainly used

Linux network configuration and RAM packages

Linux NetworkMaking a Swap partitionswapon-s Viewing the active state of the partitionfree-m View partition information in M units Swapoff to close an active partition mkswap making swap partitionsNetwork configurationifconfig (View the active NIC

Embedded Linux applications

############ Review embedded Linux application ############Embedded Linux applications:I. Embedded summary, basic concepts:1. GPL: The same as GPL for the database connected to it;Lgpl: lgpl is required only when it is modified; In general, GPL is

A new method for implementing embedded Linux-ramdisk

Introduction in Linux, there is a special feature-initializing the memory disk initrd (initial RAM disk) technology, and the kernel supports compressed file system images. With these two features, we can enable Linux to initialize memory disks from

Development of Linux systems on embedded devices (2)

File System of embedded devices The system needs a method for storing and retrieving information in a structured format, which requires the participation of the file system. Ramdisk (see references) is a mechanism for creating and mounting a file

Embedded System bootloader

This article introduces in detail the concept of boot loader, which is based on the OS boot loader in the embedded system, The main tasks of software design and the structure framework. 1. Introduction Running GNU/Linux systems on dedicated

Large RAM (Very Large memory) and large page (hugepages) series two--Configure large pages

How to configure Hugepages on the Linux platformNoun Explanation:Memlock-max Locked-in-memory address space (KB)1. Configuration/etc/security/limits.conf memlock 参数Memlock slightly less than the physical memory is greater than SGA, assuming that the

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