USAGE="Usage: $0 processName"if[ $# -ne1];thenecho$USAGE exit1fi# Incasethe monitored process has not yet started # keep searchinguntilits PID is found PROCESS_PID=""while:doPROCESS_PID=`/sbin/pidof$1`if["$PROCESS_PID.X"!=".X"];thenbreakfidoneLOG_FILE="memusage.csv"echo"ElapsedT...
%MEM -- Memory usage (RES) A task's currently used share of available physical memory VIRT -- virtual memory The total amount of virtual memory used by the task. It includes all code, data and shared libraries plus pages that have been swapped out. (Note: you can define the STATSIZE=...
在Linux中,每个进程都有自己的内存空间,用于存储程序和数据。这个内存空间被分为几个不同的部分:代码段、数据段、栈段和堆段。其中,代码段用来存储程序的指令,数据段用来存储全局变量和静态变量,栈段用来存储函数调用的局部变量和函数参数,堆段用来存储动态分配的内存。 在Linux中,进程的内存管理是通过虚拟内存来实现...
1. _PAGE_PRESENT: Pageisresidentinmemory and not swappedout,该页是否应被高速缓冲的信息2. _PAGE_PROTNONE: Pageisresident but not accessable3. _PAGE_RW: Setifthe page may be written to4. _PAGE_USER: Setifthe pageisaccessiblefromuser space,"特权位": 哪种进程可以读写该页的信息,例如用户模...
A VM area is any part of the process virtual memory * space that has a special rule for the page-fault handlers (ie a shared * library, the executable area etc). */ struct vm_area_struct { /* The first cache line has the info for VMA tree walking. */ // 分别用来保存该虚拟地址...
The screenshot ofhtopcommand is shown above. At the top of the screenshot, you can see the overall resource usage of the system: CPU usage (labeled1for the first CPU,2for the second CPU, etc.), memory usage and swap space usage. The rest information is similar to the output oftoputi...
unix linux 系统查看进程内存(UNIX Linux system view process memory) Unix/linux system view process memory Classification: operating system Abstract: This paper describes the management process when the basic concept and process management tools; for example, classification of the introduction and ...
Mapping: file backing the map , or '[ anon ]' for allocated memory, or '[ stack ]' for the program stack. 映像支持文件,[anon]为已分配内存 [stack]为程序堆栈 Offset: offset into the file 文件偏移 Device: device name (major:minor) 设备名 ...
性能问题可能是应用程序或设置配置不当造成的。 例如,具有未正确配置的缓存层的 Web 应用程序。 这种情况会触发更多的请求流回源服务器,而不是从缓存中提供服务。在另一个示例中,MySQL 或 MariaDB 数据库的重做日志位于操作系统(OS)磁盘或不符合数据库要求的磁盘上。 在此方案中,由于资源的竞争和更高的响应...
VSZ Virtual Size: The virtual memory usage of entire task in kilobytes. RSS Resident Set Size: The non-swapped physical memory used by the task in kilobytes. %MEM The tasks's currently used share of available physical memory. 进程(或子进程)磁盘情况 ...