freeBSD中使用shell脚本调用vmstat查看内存使用百分比

jason680

回复 9# little_angel

How about this way ...

$ vmstat -s
      1025228 K total memory
       934920 K used memory
       321824 K active memory
       495744 K inactive memory
       ...
   
Note: I didn't have the FreeBSD and get information from Ubuntu 12.04 LTS

Shell_HAT

回复 10# little_angel

1. dmesg -a | grep memory

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这样能看到内存总量吗？

李满满

学生党:飘过~无聊,跨平台python试试~应该可以吧freebsd没环境就不测试了~

1. 
   
2. $cat yhsafe.py
   
3. #!/usr/bin/env python
   
4. "just for fun ~ soso"
   
5. 
   
6. from sys import argv
   
7. import fileinput as fp
   
8. 
   
9. mem={}
   
10. for x in fp.input(argv[1]):
    
11.         key=x.split(':')[0]
    
12.         var=x.split(':')[1].split()[0]
    
13.         mem[key]=long(var)/1024
    
14. print "\033[31;40mMemUsedPerent:\033[0m %.2f%%" % (100*(mem['MemTotal']-mem['MemFree']-mem['Buffers']-mem['Cached'])/float(mem['MemTotal']))
    

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测试:
[root@b10-1b ~]# ./yhsafe.py /proc/meminfo
MemUsedPerent: 27.60%

little_angel

回复 13# 李满满


    很感谢你的回复，python的脚本我有，但是freebsd上面服务器在客户那里，没有python的环境，所以只能想办法写shell script，

zonyonq

可以考虑装个HTOP完事儿

little_angel

回复 11# jason680

这是我查的结果，貌似没有total mem的值啊
    root@admin# vmstat -s
1060269561 cpu context switches
395988368 device interrupts
28342796 software interrupts
13292518 traps
727855027 system calls
       46 kernel threads created
    35871  fork() calls
    15540 vfork() calls
        0 rfork() calls
        0 swap pager pageins
        0 swap pager pages paged in
        0 swap pager pageouts
        0 swap pager pages paged out
     3405 vnode pager pageins
    17968 vnode pager pages paged in
   932528 vnode pager pageouts
  2213979 vnode pager pages paged out
        0 page daemon wakeups
        0 pages examined by the page daemon
      511 pages reactivated
  3019952 copy-on-write faults
       18 copy-on-write optimized faults
  2221502 zero fill pages zeroed
   214669 zero fill pages prezeroed
        3 intransit blocking page faults
  9510069 total VM faults taken
        0 pages affected by kernel thread creation
  3651149 pages affected by  fork()
   735121 pages affected by vfork()
        0 pages affected by rfork()
  7019483 pages freed
        0 pages freed by daemon
  4570907 pages freed by exiting processes
    33349 pages active
    70870 pages inactive
      223 pages in VM cache
  7022245 pages wired down
   417561 pages free
     4096 bytes per page
38900975 total name lookups
          cache hits (98% pos + 1% neg) system 0% per-directory
          deletions 0%, falsehits 0%, toolong 0%

little_angel

回复 12# Shell_HAT

real memory 是实际物理内存，avail memory是使用内存？

real memory  = 32480690176 (30976 MB)
Physical memory chunk(s):
avail memory = 30901305344 (29469 MB)
mem: <memory>
NS-KERN map_shared_mem_ioctl (cpu 3, NSPPE-02): Reserving 396 MB for shared memory type 0

Shell_HAT

回复 18# little_angel


    以 real memory 为总量，结合 top 命令的结果，计算百分比。

little_angel

回复 19# Shell_HAT


    单位是KB嘛？

jason680

回复 17# little_angel

try this way to use "/sbin/sysctl -a" command and perl to get memory information

http://www.cyberciti.biz/faq/freebsd-command-to-get-ram-information/