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[Email protected]:~# ceph OSD Tree # id Weight type name up/down reweight -1 0.05997 Root Default -2 0.02998 Host Osd0 1 0.009995 Osd.1 up 1 2 0.009995 Osd.2 up 1 3 0.009995 Osd.3 up 1 -3 0.02998 Host OSD1 5 0.009995 Osd.5 up 1 6 0.

When writing programs, especially embedded programs, we usually need to analyze the program's performance so that the program can run faster and better to achieve real-time. If the program is large, it will be difficult to analyze it. If there is a

Introduction to C development tools in Linux-general Linux technology-Linux programming and kernel information. The following is a detailed description. The Linux release contains many software development tools. many of them are used for C and C ++

The Linux release contains many software development tools. many of them are used for C and C ++ application development. this article describes the tools that can be used for C application development and debugging in Linux. the purpose of this

Sometimes, we pay special attention to program performance, especially the underlying software, such as drivers and OS. In order to better optimize the program performance, we must find the performance bottleneck. "Good steel is used on the blade"

GNU assembler (gas) GNU assembler (called gas) is the most popular assembler in UNIX environments. Unlike most other development software packages, the GNU assembler is not released in a separate package. It is bundled with other development

0x00 Linux Advanced CommandWhen we are familiar with certain basic commands, we tend to be exposed to some advanced command operations, or unfamiliar command operations.0x01 Program ConstructionGeneral source code provided by the program

GNU Assembler (gas) The GNU assembler (known as gas) is the most popular assembler in the UNIX environment. Unlike most other development packages, the GNU assembler is not published in a separate package. It is bundled with other development

Yum Install Oprofile1 , disabling daemons (Close daemons) 2 , shutting down the GUI (turn off GUI) 3 , changing kernel parameters (change kernel parameters)4, kernel parameters (kernel parameter)5, Tuning the Processor Subsystem (processor subsystem

GCC, a well-known compiler software, must be known if you use Unix systems, including Linux. Gcc-GNU Project C and C ++ Compiler 1. Basic usage GCC is generally used as the C language compiler, and g ++ is used as the C ++ language compiler.Its