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| MB response to Load runner |
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| amodgole |
 Posted: Mon Feb 28, 2011 8:25 am Post subject: MB response to Load runner |
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Newbie
Joined: 25 Feb 2011
Posts: 4
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Hi,
We are doing Load Testing for our 18 transaction. We observed one strange behavior. When we are running any single transaction we are getting 10-11 Transaction/Second as response but when we are doing combined testing TPS goes to 20-22.
No Logical answer for single transaction TPS is low but for combined its High.
Thanks in Advance,
Amod |
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| fjb_saper |
| Posted: Mon Feb 28, 2011 9:16 am Post subject: Re: MB response to Load runner |
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Grand High Poobah
Joined: 18 Nov 2003
Posts: 20756
Location: LI,NY
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| amodgole wrote: |
Hi,
We are doing Load Testing for our 18 transaction. We observed one strange behavior. When we are running any single transaction we are getting 10-11 Transaction/Second as response but when we are doing combined testing TPS goes to 20-22.
No Logical answer for single transaction TPS is low but for combined its High.
Thanks in Advance,
Amod |
There is a lot in a transaction that has nothing to do with either WMQ or WMB... 
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MQ & Broker admin |
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| mqjeff |
| Posted: Mon Feb 28, 2011 10:06 am Post subject: |
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Grand Master
Joined: 25 Jun 2008
Posts: 17447
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| When you send one transaction at a time, Broker never runs additional instances. |
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| lancelotlinc |
| Posted: Tue Mar 01, 2011 4:58 am Post subject: |
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Jedi Knight
Joined: 22 Mar 2010
Posts: 4941
Location: Bloomington, IL USA
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You cannot just look at TPS rate as a performance indicator. There are lots of different criteria that are indicators of efficiency. If I tell my son to take out the trash and there are two bags, if he makes two trips half full, thats only one bag per trip. But if he grabs both bags and makes only one trip, he is better utilized and accomplishes twice the work in half the time. WMB is capable of 13,000 TPS and 3 ms latency. If you are only running 10 TPS, you are not even scratching the surface of what WMB can do.
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| smdavies99 |
| Posted: Tue Mar 01, 2011 5:17 am Post subject: |
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Jedi Council
Joined: 10 Feb 2003
Posts: 6076
Location: Somewhere over the Rainbow this side of Never-never land.
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| Quote: |
WMB is capable of 13,000 TPS and 3 ms latency. If you are only running 10 TPS, you are not even scratching the surface of what WMB can do.
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This is a potentially misleading and easlily misunderstood statement.
- What about the underlying H/W that the broker is running on. There is no way a $300 Single CPU Celeron PC could get to even an order on magnitude less than the figure quoted.
- What about the actual functionality used inside the flow. There is no was a flow can make a webservice call to an external 3rd party and still be able to do 13K tps no matter what H/W you throw at it.
- Does the flow in question use a remote DB? How is the network link setup? Does it auto negociate for every call?
- etc etc etc.
I suggest you try using a flow that ends with a fileoutput node and get anywhere near that sort of TPS.
How about this...
WMB is potentially capable of 13,000 TPS and as little as 3 ms latency depending upon the underlying hardware and the operations used within any one message flow.
Yeah, I have been bitten by the legal department more than once.
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WMQ User since 1999
MQSI/WBI/WMB/'Thingy' User since 2002
Linux user since 1995
Every time you reinvent the wheel the more square it gets (anon). If in doubt think and investigate before you ask silly questions. |
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| lancelotlinc |
| Posted: Tue Mar 01, 2011 5:22 am Post subject: |
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Jedi Knight
Joined: 22 Mar 2010
Posts: 4941
Location: Bloomington, IL USA
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| smdavies99 wrote: |
| Quote: |
WMB is capable of 13,000 TPS and 3 ms latency. If you are only running 10 TPS, you are not even scratching the surface of what WMB can do.
|
This is a potentially misleading and easlily misunderstood statement.
- What about the underlying H/W that the broker is running on. There is no way a $300 Single CPU Celeron PC could get to even an order on magnitude less than the figure quoted.
- What about the actual functionality used inside the flow. There is no was a flow can make a webservice call to an external 3rd party and still be able to do 13K tps no matter what H/W you throw at it.
- Does the flow in question use a remote DB? How is the network link setup? Does it auto negociate for every call?
- etc etc etc.
I suggest you try using a flow that ends with a fileoutput node and get anywhere near that sort of TPS.
How about this...
WMB is potentially capable of 13,000 TPS and as little as 3 ms latency depending upon the underlying hardware and the operations used within any one message flow.
Yeah, I have been bitten by the legal department more than once. |
I see your point. My current sandbox environment is three virtual PCs (close to the $300 PC you are talking about). PC-A is an MQ client using MQ for Java API to drive transactions, PC-B is my ESB, and PC-C is my downstream simultator. OS is RHEL 5.5 64-bit. I am getting 1,515 TPS max and latencies between 3 and 11 millis.
To reach the top end, of course, I would choose a Power7 AIX box and most certainly be able to get to 13k TPS.
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