RE: Slow GC response for x64 bit 2008

From: Storey, Robert (DCSO) <"Storey,>
Date: Wed, 7 Dec 2011 15:13:08 +0000
Message-ID: <>

The CPU usage did not move off of 00 on the target box. I did notice a quick flip in memory.

Now to figure out how to confirm this on the Weblogic side

-----Original Message-----

From: Taylor, Chris David [] Sent: Wednesday, December 07, 2011 9:09 AM To: Storey, Robert (DCSO); 'Mark W. Farnham'; '' Subject: RE: Slow GC response for x64 bit 2008

I still think the performance issue is in the Weblogic rendering BUT:

Examine the task manager of the Windows 2008 target box (particularly the EMAGENT.EXE process) and run your tests while observing the task on the monitored host. If the emagent.exe process begins chewing up CPU then you're more likely on the right track. However, if the emagent process on the monitored host remains mostly idle, then the problem is on the GC host itself (and most likely in the Weblogic 10 layer).

I would bet the Production Mode (from Development Mode) switch didn't work as it should have in Weblogic and it is still running with DEBUG set.

Chris Taylor
Sr. Oracle DBA
Ingram Barge Company
Nashville, TN 37205

"Quality is never an accident; it is always the result of intelligent effort."
-- John Ruskin (English Writer 1819-1900)

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-----Original Message-----

From: [] On Behalf Of Storey, Robert (DCSO) Sent: Wednesday, December 07, 2011 7:35 AM To: 'Mark W. Farnham'; Subject: RE: Slow GC response for x64 bit 2008

Since I'm new to GC, I'm still not fully understanding what is happening when you select a Host target homepage. Is the agent being asked to provide a huge amount of data all over? Is it reading from the repository.

I definitely agree it's something wacky on the 2008 machines.

Ping was the first thing I did. No network latency. Less than 1ms response. The two machines are on the same switch, so no weird routing.

If I understood the sequence of steps better for building that Target page, I could do some tracing.

Which tracing level would be the one to set? One for the OMS? OMA? Agent on the box? Since I'm not (as best I can tell) seeing an error in the process, it leads me to believe that it is taking the agent that long to gather and send the info.

-----Original Message-----

From: Mark W. Farnham [] Sent: Wednesday, December 07, 2011 7:22 AM To: Storey, Robert (DCSO); Subject: RE: Slow GC response for x64 bit 2008

I'd start with divide and conquer regarding where in the stack the long elapsed time is.

If you open a command window and use ping you should be able to do a traceroute to see if the network is going some stupid way to your targets. If you examine the objects on each displayed page, can you verify you're not reloading wallpaper, logos, or pictures from a remote source?

Is there anything funky about the DNS and/or security on W2008 (haven't had the displeasure yet) that might be taking a long time to resolve?

22 seconds is approximately forever, but not failing, so I think we're looking for some strange latency here.

Is it possible W2008R2 is trying to refresh the whole network topology for the workgroup, or something like that?

Good luck.

-----Original Message-----

From: [] On Behalf Of Storey, Robert (DCSO)
Sent: Tuesday, December 06, 2011 1:19 PM To:
Subject: Slow GC response for x64 bit 2008

Afternoon all,
I've been working with Oracle on an issue rendering of the target homepage in grid control for 3, x64bit boxes running 64bit W2008R2. But, since its Pri4, I should hear from them in the next 30 days or so.

I'm running GC 11 on W2008 x32. I have 22 targets. Two of my targets are x32bit. A W2003 x32 running 32bit os and my GC box that is running W2008 x32 bit OS on a x64bit hardware. Rendering these Host target homepages takes about 1.2 seconds. My other 3 boxes are all W2008R2 x64 on 64bit Dell Powedges. When I click on the link for their Host homepage, its takes 22 seconds to render.

I have looked through every log that I can find but can find no errors. I installed the agent on a 64 bit workstation running Windows7 64bit and it works just fine. Renders in about a second.

Once suggestion I got from another DBA was that I was in Demo mode vice Production on Weblogic. I reset and rebooted that so it is now in production mode.

But, I can't find any reason as to why the render takes so long on these boxes.

Anyone run up against this or have a thought? (lol moving to linux is not an option).



-- Received on Wed Dec 07 2011 - 09:13:08 CST

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