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MQSeries.net Forum Index » General IBM MQ Support » Performance questions

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ussm120
PostPosted: Mon Nov 05, 2001 12:53 am    Post subject: Reply with quote

Newbie

Joined: 28 Oct 2001
Posts: 9

Hi,
we test MQ performance on the following infrastructure:
Smal RS6K, a 16MB LAN, 2MB WAN and A big RS6K. the resluts are:
- Production of messages
The smal RS6K initiates the sending and is to produce up to 200+ messages per second
Maximum number Processed messages:
100 character messages(115 msg/s)
1K character messages(70 msg/s)
4K character messages(25 msg/s)
Maximum real available bandwidth
800 Kbit/sec

WITH CONTROLLED QUEUING
100 character messages(60 msg/s)
1K character messages(45 msg/s)
4K character messages(20 msge/s)

Average real available bandwidth
600 Kbit/sec


Greetings,
Mohammed
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dschnaider
PostPosted: Thu Feb 07, 2002 1:30 am    Post subject: Reply with quote

Newbie

Joined: 06 Feb 2002
Posts: 5

I already have a HP machine with 8 CPU's, 8GB of memory, fibre channel... etc...
and I have a poor performance of MQSeries.
If you have any tip to improve performance, please let me know.

It can be on the os, admin or programming.

One problem that we find out is that when you put 10 messages and then commit (it can be any number of messages, let say n) MQseries will make N*2 IO's to the disk. When first they write each header (just 8 bytes long) and then the body (in my case 4KB). The fibre channel uses blocks of 16KB... It is a big performance problem.



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Daniel Schnaider
dschnaider@yahoo.com
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oz1ccg
PostPosted: Tue Feb 12, 2002 1:35 am    Post subject: Reply with quote

Yatiri

Joined: 10 Feb 2002
Posts: 628
Location: Denmark

I've got some information to compare some of the platforms from the latest MQSeries Conference (Vienna 2001) supplied by IBM, and they show these figures:

Non_pers Get/put Persistent Get/put/Cmit
MQSeries Version 5.1 5.2 5.1 5.2
AIX RS6000 43P-260(2CPU) 5000 9200 100 1200
AIX RS6000 S70 (12 CPU) 33000 80000 100 2200
NT Netfinity 7000M10(4 CPU) 14000 22000 100 900
HP_UX K380 (4CPU) 6000 10500 65 800
Solaris Enterprise Ultra 450(4CPU) 8000 12000 80 1200

Setup of the test application:
- Trusted application binding
- One application per processor
- Persistent: many(50) parallel applications
- 1k messages
- Seperate queues per applications

So the result is, get up and run on version 5.2 asap if you got performace problems.

_________________
Best regards

Jørgen Pedersen
IBM Certified MQSeries Specialist
IBM Certified MQSeries Solutions Expert


[ This Message was edited by: oz1ccg on 2002-02-12 01:39 ]
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mrlinux
PostPosted: Thu Feb 28, 2002 12:35 pm    Post subject: Reply with quote

Grand Master

Joined: 14 Feb 2002
Posts: 1261
Location: Detroit,MI USA

V5.1 of MQSeries on HPUX was a dog, The release of v5.2 improved the performance dramaticly. My converstations with IBM was that it led to a 20 times
improvement in speed.

Well the K-Class machines have 200mhz RISC processors on them, so trying to compare that to a 2GHZ processor is slightly unfair.



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Jeff

IBM Certified Developer MQSeries
IBM Certified Specialist MQSeries
IBM Certified Solutions Expert MQSeries
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