[JDEV] User logins slow down?

[Dustin Puryear]

On Fri, 2001-08-31 at 12:14, Colin Madere wrote:
> 
> If it's the one you're running on AIX, I know Matt checked out latest from
> CVS before he made any mods to get it running on AIX... sooo.. it's
> 1.4.<latest from CVS>
> 
> But you've seen this on the official 1.4.1 release on Linux, also.  Correct
> Dustin?

Yes. Below is every 10'nth login time.

Linux:

[dpuryear at crack testsuite]$ ./pasvlogin -h crack -u 100 | awk '$1 % 10
== 0 {print}'
0     999280305.494653 999280305.508374 0.013721
10    999280305.686730 999280305.701709 0.014979
20    999280305.886727 999280305.904158 0.017431
30    999280306.286775 999280306.333869 0.047094
40    999280306.856944 999280306.911021 0.054077
50    999280307.506850 999280307.575894 0.069044
60    999280308.306917 999280308.388676 0.081759
70    999280309.246955 999280309.338412 0.091457
80    999280310.267189 999280310.375869 0.108680
90    999280311.477229 999280311.593550 0.116321

AIX:

[dpuryear at crack testsuite]$ ./pasvlogin -h viagra.vedalabs.com -u 100 |
awk '$1 % 10 == 0 {print}'
0     999280337.245336 999280337.262162 0.016826
10    999280337.408921 999280337.419975 0.011054
20    999280337.608931 999280337.625213 0.016282
30    999280337.858746 999280337.880329 0.021583
40    999280338.158831 999280338.187947 0.029116
50    999280338.528916 999280338.561017 0.032101
60    999280338.948951 999280338.991652 0.042701
70    999280339.448982 999280339.495653 0.046671
80    999280340.009029 999280340.062667 0.053638
90    999280340.641434 999280340.700998 0.059564

Almost linear growth.

Regards, Dustin

> 
> Colin
> 
> > -----Original Message-----
> > From: Dustin Puryear 
> > Sent: Friday, August 31, 2001 11:32 AM
> > To: jdev at jabber.org
> > Subject: Re: [JDEV] User logins slow down?
> > 
> > 
> > On Thu, 2001-08-30 at 20:43, temas wrote:
> > > >and AIX it grows from .1 seconds to .7 seconds as n = 1 -> 1000.
> > > >
> > > >Is that expected? Should login time increase as the number 
> > of online
> > > >users increases?
> > > >
> > > >Regards, Dustin
> > > >
> > > Hrm... I'll have to look at some data structures, but I 
> > don't think it 
> > > would.  Unless is was traversing some list, but that 
> > doesn't make sense 
> > > for login.  I'm assuming this is jabberd 1.4.1?
> > 
> > That's what I was saying when I discussed this over here. I don't see
> > why additional logins would slow down jabberd, but it appears to be
> > doing just that. 
> > 
> > I performed a second test, just to confirm. I had a process logging in
> > 1000 users, and I noticed login time went from .1 to .7 
> > seconds as n1 =
> > 1 -> 1000. Ok, so I started another process logging in users n2 = 1001
> > -> 2000. As n2 logged in it took the same amount of time as n1 was
> > taking at that time, and when I killed the first process (n1), n2's
> > login times decreased dramatically afterward, although there seemed to
> > be a initial pause as jabberd dropped the n1 users.
> > 
> > Regarding the version, I'm looking in the README and see Jabber 1.4.
> > Matt, is that correct?
> > 
> > Regards, Dustin
> > 
> > > 
> > > --temas
> > > 
> > > 
> > > 
> > > _______________________________________________
> > > jdev mailing list
> > > jdev at jabber.org
> > > http://mailman.jabber.org/listinfo/jdev
> > > 
> > -- 
> > Dustin Puryear <dpuryear at usa.net>
> > http://members.telocity.com/~dpuryear
> > In the beginning the Universe was created. 
> > This has been widely regarded as a bad move. - Douglas Adams
> > 
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-- 
Dustin Puryear <dpuryear at usa.net>
http://members.telocity.com/~dpuryear
In the beginning the Universe was created. 
This has been widely regarded as a bad move. - Douglas Adams