XEN的VPS上cache内存没用完就用SWAP内存啦?

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这是我VPS上探针的统计情况:

内存使用状况 物理内存：共 360.22 M, 已使用 352.13 M, 空闲 8.09 M, 使用率 97.75 %   
Cache化内存为 100.55 M, 真实内存使用率为 69.84 %   
SWAP区：共 255.99 M, 已使用 23.55 M, 空闲 232.44 M, 使用率 9.2 %

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原帖由 cosence 于 2010-5-3 21:42 发表
/ect/sysctl.conf在
vm.swapiness=xx  xx默认是60好象值越小表示越尽可能的用物理内存。
改成20试试

我的/ect/sysctl.conf文件没你说的这个值呢

1. # Kernel sysctl configuration file for Red Hat Linux
   
2. #
   
3. # For binary values, 0 is disabled, 1 is enabled.  See sysctl(8) and
   
4. # sysctl.conf(5) for more details.
   
5. 
   
6. # Controls IP packet forwarding
   
7. net.ipv4.ip_forward = 0
   
8. 
   
9. # Controls source route verification
   
10. net.ipv4.conf.default.rp_filter = 1
    
11. 
    
12. # Do not accept source routing
    
13. net.ipv4.conf.default.accept_source_route = 0
    
14. 
    
15. # Controls the System Request debugging functionality of the kernel
    
16. kernel.sysrq = 0
    
17. 
    
18. # Controls whether core dumps will append the PID to the core filename
    
19. # Useful for debugging multi-threaded applications
    
20. kernel.core_uses_pid = 1
    
21. 
    
22. # Controls the use of TCP syncookies
    
23. net.ipv4.tcp_syncookies = 1
    
24. 
    
25. # Controls the maximum size of a message, in bytes
    
26. kernel.msgmnb = 65536
    
27. 
    
28. # Controls the default maxmimum size of a mesage queue
    
29. kernel.msgmax = 65536
    
30. 
    
31. # Controls the maximum shared segment size, in bytes
    
32. kernel.shmmax = 4294967295
    
33. 
    
34. # Controls the maximum number of shared memory segments, in pages
    
35. kernel.shmall = 268435456

复制代码

qiqi13245

原帖由 gdtv 于 2010-5-3 21:43 发表
同问

gdtv

同问