Dominic Marks wrote:
Stephen Clark wrote:
Hello List,
We have a network appliance that is currently based on 4.9. We are in
the process of releasing
a new version based on 6.1 stable.
You are going to get asked this, so I'll ask first.
Whats the reason behind not running a more recent STABLE? I understand
developing a product on a moving platform is not ideal, but its going to
be mentioned!
In our testing using nttcp thru the appliance we see insignifant
difference in thruput between the 2
versions in a controlled environment - aproximately 94mbs on a 100mb lan.
We have a person that is testing the both system inhouse surfing out
over the internet on our T1
link and he complains that he is consistently seeing the 6.1 version
being much slower than the
4.9 version (on the same hardware).
He has been comparing the 6.1 system to 4.9 system for a couple of weeks
and continues to insist the 6.1 version is much slower.
You don't mention what the appliance actually does beyond just moving
packets about? Surfing implies some sort of proxy or gateway device?
Are there any sysctl tunables that may affect performance going over the
internet
with a slower link, dropped packets, etc that could cause this?
Any ideas would be appreciated.
Dominic
Hi Dominic,
The appliance is basically a firewall/nat/vpn device. We started on 6.1
last year and it has
taken us a while to get things tested, plus I don't like to use a brand
new release. If we go to
a later release it means we have to do complete regression testing, etc.
We are basically using a GENERIC config for our kernel. We, meaning the
R&D team don't see any
performance issues in a controlled environment - 6.1 performs just as
well as 4.9.
In subjective tests R&D has done using the following setup we see "no"
problem:
freebsd+firefox <--100mbs lan---> 6.1 network appliance <----T1
link----> internet
freebsd+firefox <--100mbs lan---> 4.9 network appliance <----T1
link----> internet
One of our testers has the same setup but is using winblows/ie in place of
freebsd+firefox and subjectively says the 6.1 system is slower than the
4.9 system.
I was just wandering if there were any tunables that might cause this.
Thanks,
Steve
--
"They that give up essential liberty to obtain temporary safety,
deserve neither liberty nor safety." (Ben Franklin)
"The course of history shows that as a government grows, liberty
decreases." (Thomas Jefferson)
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