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VFP Garbage Collection - Any Ideas?
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General information
Forum:
Visual FoxPro
Category:
Other
Miscellaneous
Thread ID:
00464933
Message ID:
00465669
Views:
15
Very interesting. I place the sys(1104) in my form manager class
in between each form change, and system memory stays in check nicely on T/S.
For VFP5, it seems the _Screen.Lockscreen=.F. or creating a
form then destroying it are good tools for T/S applications..

>Here's one you don't see everyday.
>x = space(16777184)   && VFP memory jumps to between 36-39 MB
>_Screen.LockScreen = .F.  && VFP memory drops to 18 MB
>release x  && VFP memory drops to normal pre-x levels
>It seems VFP puts a lot into system resources and the LockScreen causes these to be re-evaluated.
>
>HTH.
>
>>I'm hoping someone knows how to force VFP to do garbage collection.
>>For example, on an NT machine with task manager watching the VFP memory allocated, I type:
>>
>>x = space(16777184) ' VFP allocates between 20-36meg of RAM
>>x = Null
>>Release x ' RAM stays allocated
>>
>>CLOSE ALL
>>CLEAR ALL ' No luck - still allocated
>>
>>Is there any way to force memory allocation? SYS(3050) has
>>no effect on this kind of memory allocation.
>>
>>We have a citrix box with many VFP apps running, and if one
>>user runs a VFP routine which needs RAM, the RAM is staying
>>allocated to that user indefinitely, slowing the other users
>>down.
>>
>>If anyone has any insites, I would be very thankful.
>>
>>TIA,
>>Ed
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