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| krisrock |
 Posted: Tue Oct 09, 2007 1:21 pm Post subject: tuning |
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Acolyte
Joined: 11 Sep 2007
Posts: 65
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Hi
I want to know if there can any tuning that can be done in MQ.
Is there any tuning that can be done at OS level?
thanks in advance |
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| bruce2359 |
| Posted: Tue Oct 09, 2007 1:29 pm Post subject: |
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Guest
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| What hardware platform? What operating system? What version of MQ? |
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| krisrock |
| Posted: Tue Oct 09, 2007 1:37 pm Post subject: |
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Acolyte
Joined: 11 Sep 2007
Posts: 65
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Solaris 10 V240
MQ 6.0.2.0 |
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| fjb_saper |
| Posted: Tue Oct 09, 2007 2:41 pm Post subject: |
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Grand High Poobah
Joined: 18 Nov 2003
Posts: 20756
Location: LI,NY
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And why do you need tuning? Can you display/report the behavior that makes you think the tuning is needed on MQ?
_________________
MQ & Broker admin |
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| bruce2359 |
| Posted: Tue Oct 09, 2007 4:21 pm Post subject: |
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Guest
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| And is the performance issue limited to MQ? All applications on the box? Only some MQ applications? Is the performance issue new? What changed since performance was good/better? |
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| mvic |
| Posted: Wed Oct 10, 2007 12:31 am Post subject: Re: tuning |
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Jedi
Joined: 09 Mar 2004
Posts: 2080
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| chandrasekaranr wrote: |
| I want to know if there can any tuning that can be done in MQ. |
Check out the performance reports at http://www.ibm.com/support/docview.wss?rs=171&uid=swg27007150
| Quote: |
| Is there any tuning that can be done at OS level? |
I'll interpret the question a little more generally to mean "anything beneath MQ", including hardware. If you are CPU-bound, get more CPUs. If you are I/O-bound, find out what I/O you're doing and get faster I/O capability.
As others have said you have to take a system-wide view, not just an MQ view. It's highly likely, if your system is like most others these days, that your applications and databases are using plenty of system resources too. In the end, tuning MQ might not buy you much overall improvement. So be sure it's the right place to be looking before spending too much effort. |
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| zpat |
| Posted: Wed Oct 10, 2007 1:25 am Post subject: |
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Jedi Council
Joined: 19 May 2001
Posts: 5866
Location: UK
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Don't make messages persistent unless they really need to be.
Fewer, larger messages are generally better than many small ones, but don't overdo that.
Perform commits about every 50 messages (when syncpointing).
Other than those general observations, we would need to know about message rates, sizes, persistence, hardware etc to advise. |
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