Fix for slow response after a few hours of idle

Recently my 10.6 10.75 iMac began running ultraslow after sitting idle for an hour or two. If I am very patient I am allowed to close apps and shut down. Them I wait for the startup to complete and slowly shut down without opoening anything several times. Evenutally the response speed returns to something like normal.
Definitely seems to happen after sitting idle. I was using a mosaic screen blanker and have now switched to one of the less intensive screen savers.
Any suggestions appreciated.
Rick

Activity Monitor – Monitor Performance Problems
Performance Guide
Why is my computer slow
Why your Mac runs slower than it should
Things you can do to resolve slowdowns see post by Kappy

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#Date: 2014年7月30日 4:27:27
#OSName: Windows 7 Ultimate
#OSVers: 6.1
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Thank you for your reply.
I don't build array continuously. I just build a few queues. I am sorry the program is too large to show it to you. I have read the dump file. It seems like memory overflow. Do you think so? But it seems like there is no chance for memory overflow in Labview. The dump file is as below:
Microsoft (R) Windows Debugger Version 6.3.9600.17029 X86
Copyright (c) Microsoft Corporation. All rights reserved.
Loading Dump File [D:\LabVIEW Data\LVInternalReports\1.0.0.1\51437f73-aab6-4097-b7e1-3fee8a74e4dd\6ebe0400-78d2-41e3-b2fd-858c21e3567b.dmp]
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Response Time (ms) Location
OK C:\Program Files (x86)\Symbols
Symbol search path is: C:\Program Files (x86)\Symbols
Executable search path is:
Windows 7 Version 7600 MP (4 procs) Free x86 compatible
Product: WinNt, suite: SingleUserTS
Machine Name:
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*** WARNING: Unable to verify timestamp for kernel32.dll
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computer_tim wrote:
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Fix for slow response after a few hours of idle

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