24 Nov
2006
24 Nov
'06
5:06 p.m.
I'm sorry to nip in, but I tried to rerun the tests again and add more
info into output as requested and add stable ser and CVS openser.
I know that this test doesn't conform much to real life (for example
generated callid/branch/tags differs only in a number, etc) but it can
give at least an image about simple stateful forward.
So, if anybody is interested:
http://www.iptel.org/~vku/performance/tm.serXopenser.correct/
I tried the same once more with less iterations because there were some
errors in log from openser speaking about low memory (I used -m to
specify shared mem size but with 768M it still said errors, might be a
memleak or did I anything wrong?). With 1M iterations it was without
errors:
http://www.iptel.org/~vku/performance/tm.serXopenser.1M/
Vaclav
P.S. I have forgotten - SIPP was "Sipp v1.1, version 20060829, built Sep
5 2006, 15:07:25", I'm attaching simple patch which I have used.
On Wed, Nov 22, 2006 at 12:48:12AM +0200, Daniel-Constantin Mierla wrote:
I love such "independent" and "very
very useful" tests ... one selected
the versions he liked, latest development of ser with latest stable
version of openser, the details about testing scenarios are pretty
limited. However these details are very very insignificant, really.
What matters is this particular case: what you tested is useless and
someone can better implement a tiny kernel module to perform same job
much faster that will make openser/ser trashed instantly if that is
their only usage. More important are the performances in real world
cases. I am not going to do comparison tests and reveal numbers, I will
let you do and hope make the results available.
I will exemplify with just two common use cases:
A) ITSP where usrloc is required - to get the throughput from your tests
one needs to have over million of online users. Let me know how SER is
doing with loading them, I can bet that it takes several minutes to
start (so service down for a significat time) and lot to lookup a record
afterwards, do not forget to mention required memory. Then we will see
if the forwarding throughput is the bottleneck.
B) carrier - heavy accounting needed - take the latest cvs snapshots and
test it, look at flexibility in same time and see if the balance of
throughput and features is satisfactory. Do not forget that behind
database should be redundant for a reliable accounting storage.
My conclusion and the point I wanted to underline is that forwarding is
not the bottleneck by far and so far in real-world deployments -- or at
least nobody reported in openser mailing lists. Once it will be, for
sure there will be effort and focus to optimize it. I don't even bother
to check the scenarios, environment and test results you had, because
makes no sense today.
It is more important to look at the results gave, for example, here by
an independent party:
http://openser.org/pipermail/users/2006-November/007777.html
With a real config and clustering system the performance of a box was
300calls per second -- having at least 5 database accesses!!!. If you
need double you can add one more hardware, without extra configuration
overhead, just plug and play. And that is stable version of OpenSER
since July this year (btw, for those who keep saying that OpenSER does
not focus on stability, just check the CVS and see the number of bugs
encountered with this release, maybe you can change your opinion), and
you can have a safe environment distributed geographically where each
hardware can undertake the traffic from the others on the fly. With
single box crashing because of different independent reasons (hardware
failure, power outages ...) you get no service ... with three boxes you
can serve huge number of active subscribers in peak hours and have
failover support, so service availability 100%. I am sure most of the
people look now how to build reliable platforms that scale very easy and
can be distributed around the world, with a bunch of useful features --
simple first line replacement is not the business case for VoIP anymore.
We didn't try at OpenSER to get a airplane when we have to drive city
streets, we looked to get feature rich and reliable application for its
use cases. I would propose to have focus on making own applications
better than trying to show the other one is worse.
Cheers,
Daniel
PS. You can use stateless forwarding to get even better results, the
usefulness will be the same.
On 11/21/06 12:30, Jiri Kuthan wrote:
Regarding the technical discussion, here are some
hard numbers which show
how SER stack outperforms derivative work. Forwarding throughput is clearly
several times better under stress and consequently, variation of response
delay is rather stable.
-jiri
At 21:16 09/11/2006, Rao Ramaratnamma wrote:
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Serusers mailing list
Serusers(a)lists.iptel.org
http://lists.iptel.org/mailman/listinfo/serusers Hi Weiter,
Yeah, I have been trying to limit myself to technical observations too,
but the governance aspect is somewhat interesting too as a hint for
future development, even though I guess even this is much more confusing
than the technical ones. I have investigated, both projects have their
firms with them that pursue their commercial interests which creates a
risk of possibly departing from the public interest, like with redhat.
From this angle they look quite similar. But if any worries me just a
little bit more than openser. Appearance at commercial shows on the
"open" side versus technical event on the "net" side if I take your
BSD
parallel, marketing "open" webpage accusing "net" version bad, hiding
root commerical sponsors on the "open" webpage, this could be signs for a
redhat-like doubleedged sword. Hopefully I am oversensing because I mean
it is natural that everybody has SOME interest, but indisputably folks on
both sides have done good work, but same indisputably more TRANSPARENCY
would be helpful for both projects so that users can be less
investigative.
But I agree the technical comparison you suggest will be very useful if
not most useful. This is what I am eventually upto. Anything folks have
to tell in this topic is most welcome like the retransmission timers in
subject or user loading.
rr
disconcerted by the fact that the more I know the more I am confused and
determined to get over the learning curve quickly. also excuse the abuse
I crossposted again but I think cross interrogation is a bit painful but
the more effective :-)
----- Original Message ----
From: Weiter Leiter <bp4mls(a)googlemail.com>
To: Kim Il <kim_il_s(a)yahoo.com>
Cc: users(a)openser.org
Sent: Thursday, November 9, 2006 1:42:29 PM
Subject: Re: Fw: [Users] TM : retransmission timers
Common user barely has time to meet his boss requirements, rather than
playing around with different scenarios, platforms, environments.
I only read one email where Daniel stated that OpenSER now performs a
whole much better while loading users from database. SER guys put no
figure out yet, neither bare numbers nor comparisons. I'm just really
curious to see how both servers perform, that's all.
Even though I must maintain my SER, I kinda like OpenSER's faster
releases and developers' responsiveness (that I shamelessly exploit for
the common code left there :-), which is pretty much nonexistent with
iptel (at least this is the general belief here at OpenSER). But about
this I'll probably have to fight on SER's mailing list. I still wish that
one day I won't have to compare features; heck, NetSER and FreeSER are
still available ;-).
WL.
PS. Maybe regretfully, I haven't seen any iptel booth at von this year,
while OpenSER guys put up a nice show. My congrats.
On 11/9/06, Kim Il <<mailto:kim_il_s@yahoo.com>kim_il_s@yahoo.com> wrote:
I can see what you are hinting at, but I guess that the users are the
unbiased party that should do the judgment and not the parties who have
something to gain.
cheers
Weiter Leiter <<mailto:bp4mls@googlemail.com>bp4mls@googlemail.com>
wrote: This features comparisons are not to last for too long, some
performance comparisons would also be nice. After all, there are plenty
of UA-level stacks out there. At least now that both projects get to have
stable releases after forking and some core functionality remained
shared. I wonder what "unbiased" organization will take up the challenge.
:-)
On 11/8/06, Kim Il <<mailto:kim_il_s@yahoo.com> kim_il_s(a)yahoo.com >
wrote: Mike,
this is a really good start and we should collect these things so as to
help the community to take the right choice. I would also suggest that
what ever ground breaking issues we list we stay at the functional level
(I do not think anyone is helped by using a description containing
"allowing carrier grade platforms" and similar marketing phrases). cheers
{truncated because too large}
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