Re: Slow Display Results using Exceed
From: Mark Ray (Mark.Ray_at_UNILEVER.COM)
Date: 02/17/04
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- Maybe in reply to: JOSEPH KREMBLAS: "Slow Display Results using Exceed"
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Date: Tue, 17 Feb 2004 13:22:51 -0500 To: aix-l@Princeton.EDU
Okay, glad you got it straightened out!
Best,
Mark
-----Original Message-----
From: JOSEPH KREMBLAS [SMTP:jkremblas@REDHEARTGIFTS.COM]
Sent: Tuesday, February 17, 2004 11:27 AM
To: aix-l@Princeton.EDU
Subject: Re: Slow Display Results using Exceed
Hi, Mark,
The problem ended up being a DNS problem; the machine in
question was a NIM server running AIX 5.1 and running DNS. You're right
about CDE needing name resolution in place. I logged into CDE via the
system console with no problems and performance was good. This led me to
believe that there was a network issue somewhere. To confirm that it
wasn't my eXceed configuration, I logged into one of my Red Hat Linux
boxes and issued a series of TELNETs, and RSHs and found that the
primary DNS server was the bottleneck, meaning--any traffice orginating
or going through the DNS server was suffering a painful death; no other
machine suffered from network performance. I also verified the NO
settings and verified that these haven't been changed for the past 3
months, as I maintain a master configuration file listing of all network
settings in a flat file and MySQL database. Then it dawned on me that a
DNS change had taken place on the primary DNS server and I ended up
redoing the DNS build and everything is fine now.
Thank you for your input and advice. I appreciate it and the
group's input very much.
Best wishes,
Joseph Kremblas
-----Original Message-----
From: IBM AIX Discussion List [mailto:aix-l@Princeton.EDU] On Behalf Of
Mark Ray
Sent: Tuesday, February 17, 2004 7:59 AM
To: aix-l@Princeton.EDU
Subject: Re: Slow Display Results using Exceed
Hi Joseph:
Simon is right about name resolution and the CDE; in fact, the CDE won't
even start if you don't have TCP/IP and whatever name resolution (hosts,
DNS) set up correctly. You haven't mentioned if this is a new,
recurring, or old problem. In any case, try this: Take a look at your
network options. Issue a "no -a | pg" on the system. Of particular
interest will be two of the top entries: "thewall" attribute, and even
more significant, your "sb_max" attribute. Thewall is the total amount
of real memory that's dedicated to the communications subsystem. It has
different defaults in AIX v4.3.X and 5.X (you also haven't mentioned
what version of AIX you're running.) This value should be between 25% -
50% of your real memory. Now look at your "sb_max" value. It should be
*at least* four times the value of the wall, as thewall is measured in
kilobytes, and sb_max is measured in bytes. sb_max stands for "socket
buffer maximum". It tells you how much of thewall value will be given
over to creating socketed connections, which is just how the CDE
connects. Bump your sb_max value up . Way up. Start with ten times the
value of thewall; don't worry, you really can't mess anything up setting
this value. See if that helps. If it doesn't we can explore other
options, but I betcha that'll help you out.
Best Regards,
Mark Ray
-----Original Message-----
From: Green, Simon [SMTP:Simon.Green@EU.ALTRIA.COM]
Sent: Tuesday, February 17, 2004 6:03 AM
To: aix-l@Princeton.EDU
Subject: Re: Slow Display Results using Exceed
My first thought would be the network.
Try connecting through Telnet - the one with Exceed is better than
Windows' version - and see if it's any better. Telnet usually performs
better as it hasn't got all the graphics to worry about. The other
problem which can hit CDE very badly is name resolution. Try sticking
an entry for your PC's IP address in DNS or /etc/hosts. I'd usually
expect this to be OK, though, once you've actually established a
connection.
-- Simon Green Altria ITSC Europe Ltd AIX-L Archive at https://new-lists.princeton.edu/listserv/aix-l.html New to AIX? http://publib-b.boulder.ibm.com/redbooks.nsf/portals/UNIX N.B. Unsolicited email from vendors will not be appreciated. Please post all follow-ups to the list. > -----Original Message----- > From: JOSEPH KREMBLAS [mailto:jkremblas@REDHEARTGIFTS.COM] > Sent: 14 February 2004 23:34 > To: aix-l@Princeton.EDU > Subject: Slow Display Results using Exceed > > > Hi, folks, > > I need your help. I'm using eXceed v6.01 running on Windows XP > Professional. About two days ago I noticed a significant lag in conect > time when I select the AIX host I want to connect to via broadcast > mode. Then it literally takes forever for the CDE desktop to appear. > Afterwards, I will issue a simple ps -ef command and the screen is > hesitant to display the complete contents at any one given time. Has > anybody else encountered this problem before? Any tips on > where I should > look? This problem has me puzzled. > > I did go to the console and I see no lag in display response > time.
- Previous message: Green, Simon: "Re: AIX Preventative maintenance"
- Maybe in reply to: JOSEPH KREMBLAS: "Slow Display Results using Exceed"
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