Bull GNU/Linux NFSv4 project

NFSv4 Max number of file, part II

Test

I am using the same test than detailled here, using a new kernel (2.6.12-rc6-CITI_NFS4_ALL-4).
The test tool is able to generate and list up to 250 000 files. The time to list files is O(n²).

The interpolated curb is:

t(n)=0.0000000000339844*n²+0.0000055436160829*n

Point used to construct the curb are : (0,0); (90 000, 0.774199008942); (180000, 2.09894514084)

Conclusion

The time to list a directory is O(n²).

Software configuration

•  Server :
• Export options are : /export        *(rw,wdelay,insecure,no_root_squash,no_subtree_check,fsid=0)
• mount options, NFSv4 : rsize=32768,wsize=32768,timeo=14,intr,noauto
• Linux 2.6.12-rc4-CITI_NFS4_ALL-1

hardware configuration

(Client and Server)

• 2 processors : Intel(R)
• Xeon(TM) CPU 2.80GHz, cache 512 KB
• Total memory: 2Gb
• Ethernet: 1Gb/s link
• Distribution : modified Fedora Core 2

Page maintained by: Vincent Roqueta		Accessed times since its creation.
	Last update: 2005, September 06