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Post subject: "sin" command takes eons
 Posted: Jan 18, 2008 - 04:48 PM
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New Member
Joined: Jul 18, 2007
Posts: 3
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| I'm trying to debug some applications on a QNX6 server and am getting quite frustrated @ the amount of time it takes to run a simple "sin" command. It literally takes over 5 minutes to run. I've got the system monitor running and it shows low CPU usage and stable ram usage. Has anyone else had this problem? How do I fix it? Thanks! |
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Post subject: RE: "sin" command takes eons
Posted: Jan 20, 2008 - 09:16 PM
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QNX Master
Joined: Sep 01, 2002
Posts: 2675
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| What version of QNX are you using. If you are running your own programs it's possible that they are receiving a message from sin and are not handling it properly. |
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Post subject:
Posted: Jan 21, 2008 - 03:46 PM
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Senior Member
Joined: Mar 10, 2004
Posts: 516
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Functor,
Are you running the 'sin' command directly on the QNX machine (console or under Photon) or from the Momentics Eclipse environment via a Windows machine?
Assuming you are using QNX 6, what happens if you try a 'pidin' command or a 'hogs' command? Do they also take 5 minutes to run?
Tim |
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Post subject:
Posted: Jan 21, 2008 - 09:15 PM
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Active Member
Joined: Nov 05, 2003
Posts: 56
Location: Texas
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I have also seen this problem. We just gave up on sin and use pidin exclusively. Never really paid a lot of attention since pidin is fine for us. We've had this problem since the 6.2 days, by the way, on every machine with every configuration of every version/patch of QNX 6 we've tried.
-James Ingraham
Sage Automation, Inc. |
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Post subject:
Posted: Jan 22, 2008 - 12:34 AM
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QNX Master
Joined: Sep 01, 2002
Posts: 2675
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| In all cases that I've seen this it was because a program was not able to handle the message receive by sin. And most of the time it's not one of the QNX program, that not handling these messages properly ;-0 |
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Post subject:
Posted: Jan 22, 2008 - 03:52 PM
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QNX Master
Joined: Jun 25, 2003
Posts: 977
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| Ironically, the program has to announce to the OS that it does know how to handle the message before this can happen. |
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Post subject:
Posted: Jan 23, 2008 - 03:53 PM
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New Member
Joined: Jul 18, 2007
Posts: 3
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Many thanks to all the replies!
I tried the pidin and hogs commands and they both run immediately. That pidin command in particular will be of great use.
I am running the sin command by connecting to the server using Phindows, which then had the Photon GUI.
The server is running a lot of code that didn't come with the OS and I think is very likely they aren't responding to the sin commands properly. I am also having problem with this code as the processes often die rusulting in downtime. Perhaps these are two symptoms of the same problem.
Thanks again for the input! |
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