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Re: Target bandwidth per client and Platoon_MAXUSERS   Message List  
Reply | Forward Message #281 of 282 |
Target bandwidth per client and Platoon_MAXUSERS

Hello,

I'm trying to understand what are reasonable numbers to use when running
dkftpbench.

The weppage says that by default dkftpbench's target bandwidth per
client is set at 28.8 kilobits/second. Is this still a reasonable
assumption to make today ?

I'm running dkftpbench against an ftp server connected through a
cross-over cable. The goal is to measure ftp throughput before and after
a particular automated instrumentation to the source code. dkftpbench
under this configuration always manages to reach the limit of 512
Platoon_MAXUSERS, as set in Platoon.h. However, I see through network
and CPU monitoring tools that the CPU of the server is not saturated yet
under this configuration. Is there an easy way to increase this limit ?
Simply raising the value of this variable in the source code to support
more users reports segmentation faults of dkftpbench.

Looking over other messages in this mailing list I see people reporting
generating load in the order of thousands of requests[1]. Is there
something I'm missing ?

Thanks for any help,
Kristis

[1] - http://tech.groups.yahoo.com/group/ftpbench/message/278



[Non-text portions of this message have been removed]




Tue Apr 14, 2009 12:59 am

kristis.makris@...
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Message #281 of 282 |
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(Wow, that was fast) I have a separate test to measure latency of the instrumentation (just fetch files with wget). My goal here is to measure throughput and...
Kristis Makris
kristis.makris@...
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Apr 14, 2009
3:55 am

Hello, I'm trying to understand what are reasonable numbers to use when running dkftpbench. The weppage says that by default dkftpbench's target bandwidth per ...
Kristis Makris
kristis.makris@...
Send Email
Apr 14, 2009
3:56 am

Could be you're running out of file handles or local ports. Have you followed the instructins in "System Tuning" in http://www.kegel.com/dkftpbench ? What does...
Dan Kegel
dankegel
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Apr 14, 2009
4:07 am
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