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| Threads and/or Processes.... |
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| jed |
 Posted: Mon Aug 23, 2004 8:26 am Post subject: Threads and/or Processes.... |
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Centurion
Joined: 08 Jan 2004
Posts: 118
Location: MI, USA
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What is the difference between these two?
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Jed |
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| jefflowrey |
| Posted: Mon Aug 23, 2004 8:33 am Post subject: |
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Grand Poobah
Joined: 16 Oct 2002
Posts: 19981
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Processes contain threads.
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I am *not* the model of the modern major general. |
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| jed |
| Posted: Mon Aug 23, 2004 8:52 am Post subject: |
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Centurion
Joined: 08 Jan 2004
Posts: 118
Location: MI, USA
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ok... in relation to this question...
i got a simple program that gets (MQGET) messages from a queue...
i create 5 instances of this program to just get messages from the same queue. is it possible to that all five programs get messages from the queue? the 5 instances of the program will do load balancing.....
based on my understanding of mq processes, only one instance of the program will be able to do the get (MQGET) of the messages. am i correct?
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Jed |
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| bower5932 |
| Posted: Mon Aug 23, 2004 9:22 am Post subject: |
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Jedi Knight
Joined: 27 Aug 2001
Posts: 3023
Location: Dallas, TX, USA
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All 5 copies of your program should get messages. You could test this out by dumping a bunch of messages to a queue and then running multiple copies of your program against the queue.
However, there is no guarantee that if you have 10,000 messages that each program will get 2,000 of them. The operating system will do swapping and balancing among the various processes and you may not see 100% equal distribution.
What makes you think that only one program will get all of the messages? |
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