hi,
i have a garbage collection problem. i have an application writen by
vb.net, i am opening a form and in this form there is a big query. when i
open the form, it takes 80 mb memory because of the data table. when i closed
the form it is already taking 80 mb memory. where is garbage collection? i am
waiting 30 minutes but memory usage is not decreasing. what must i do?
thanks,
Ömer KUL
14  1529 
Have a look at http://getdotnetco.web101.discountas...%20Mystery.htm
"Ömer KUL" <me****@discuss ions.microsoft. com> wrote in message
news:AD******** *************** ***********@mic rosoft.com... hi,
i have a garbage collection problem. i have an application writen by
vb.net, i am opening a form and in this form there is a big query. when i
open the form, it takes 80 mb memory because of the data table. when i
closed
the form it is already taking 80 mb memory. where is garbage collection? i
am
waiting 30 minutes but memory usage is not decreasing. what must i do?
thanks,
Ömer KUL
hi Hederman,
i have read the article. thank you very much for your help. the article is
very helpful but it is not answering my question. i am opening a form and
memory usage is increasing(80 mb), after that i am closing it but memory
usage is not decreasing. whenever i open the form memory usage is increasing
80 mb and going on so... that is the problem...
thanks
Ömer KUL
"Sean Hederman": Have a look at
http://getdotnetco.web101.discountas...%20Mystery.htm
"Ömer KUL" <me****@discuss ions.microsoft. com> wrote in message
news:AD******** *************** ***********@mic rosoft.com... hi,
i have a garbage collection problem. i have an application writen by
vb.net, i am opening a form and in this form there is a big query. when i
open the form, it takes 80 mb memory because of the data table. when i
closed
the form it is already taking 80 mb memory. where is garbage collection? i
am
waiting 30 minutes but memory usage is not decreasing. what must i do?
thanks,
Ömer KUL
If you're not holding any references to your datasets then the CLR will free
the memory when it needs to, not on some schedule. So the point would be to
ensure that the references to your datasets are being cleared.
"Ömer KUL" <me****@discuss ions.microsoft. com> wrote in message
news:05******** *************** ***********@mic rosoft.com... hi Hederman,
i have read the article. thank you very much for your help. the article is
very helpful but it is not answering my question. i am opening a form and
memory usage is increasing(80 mb), after that i am closing it but memory
usage is not decreasing. whenever i open the form memory usage is
increasing
80 mb and going on so... that is the problem...
thanks
Ömer KUL
"Sean Hederman":
Have a look at
http://getdotnetco.web101.discountas...%20Mystery.htm
"Ömer KUL" <me****@discuss ions.microsoft. com> wrote in message
news:AD******** *************** ***********@mic rosoft.com... > hi,
> i have a garbage collection problem. i have an application writen by
> vb.net, i am opening a form and in this form there is a big query. when
> i
> open the form, it takes 80 mb memory because of the data table. when i
> closed
> the form it is already taking 80 mb memory. where is garbage
> collection? i
> am
> waiting 30 minutes but memory usage is not decreasing. what must i do?
> thanks,
> Ömer KUL
Task Manager doesn't always show memory usage correctly. To see this follow
these steps:
- Create a new Windows Forms application
- Run it
- Check memory usage in Task Manager
- My computer shows 15,554 K
- Minimize the app
- Check memory usage in Task Manager
- My computer shows 864 K
- Restore the app
- Check memory usage in Task Manager
- My computer shows 1,784 K
Try minimizing the app after you close the form and see if the memory usage
changes.
--
Rob Windsor [MVP-VB]
G6 Consulting
Toronto, Canada http://msmvps.com/windsor/
"Ömer KUL" <me****@discuss ions.microsoft. com> wrote in message
news:05******** *************** ***********@mic rosoft.com... hi Hederman,
i have read the article. thank you very much for your help. the article is
very helpful but it is not answering my question. i am opening a form and
memory usage is increasing(80 mb), after that i am closing it but memory
usage is not decreasing. whenever i open the form memory usage is
increasing
80 mb and going on so... that is the problem...
thanks
Ömer KUL
"Sean Hederman":
Have a look at
http://getdotnetco.web101.discountas...%20Mystery.htm
"Ömer KUL" <me****@discuss ions.microsoft. com> wrote in message
news:AD******** *************** ***********@mic rosoft.com... > hi,
> i have a garbage collection problem. i have an application writen by
> vb.net, i am opening a form and in this form there is a big query. when
> i
> open the form, it takes 80 mb memory because of the data table. when i
> closed
> the form it is already taking 80 mb memory. where is garbage
> collection? i
> am
> waiting 30 minutes but memory usage is not decreasing. what must i do?
> thanks,
> Ömer KUL
"Rob Windsor [MVP]" <ro************ *****@gmail.com > wrote in message
news:OK******** ******@TK2MSFTN GP09.phx.gbl... Task Manager doesn't always show memory usage correctly. To see this
follow these steps:
- Create a new Windows Forms application
- Run it
- Check memory usage in Task Manager
- My computer shows 15,554 K
- Minimize the app
- Check memory usage in Task Manager
- My computer shows 864 K
- Restore the app
- Check memory usage in Task Manager
- My computer shows 1,784 K
Try minimizing the app after you close the form and see if the memory
usage changes.
And what makes you think this isn't correct here?
The OS automatically reduces the workingset of a windows application
(any)when minimizing, this has been done since NT4 was introduced years ago.
Taskman takes it's values from the preformance counters, do you mean that
these aren't correct?
Willy.
"Ömer KUL" <me****@discuss ions.microsoft. com> wrote in message
news:AD******** *************** ***********@mic rosoft.com... hi,
i have a garbage collection problem. i have an application writen by
vb.net, i am opening a form and in this form there is a big query. when i
open the form, it takes 80 mb memory because of the data table. when i
closed
the form it is already taking 80 mb memory. where is garbage collection? i
am
waiting 30 minutes but memory usage is not decreasing. what must i do?
thanks,
Ömer KUL
When there is no garbage, there is nothing to collect, that's how the GC
works, so in your case there is no garbage because you are still holding
references to your Data Tables. Please post your code if you want to get any
more help.
Willy.
Hi Willy,
i am closing the form that increases the memory usage. are not the all
variables and controls on the form disposed? after now, does not the GC
collect them?
i can not send you all code, because it is an ERP packet and it is 50 mb
when zipped. i can send you code samples if you want.
thanks
Ömer KUL
"Willy Denoyette [MVP]":
"Ömer KUL" <me****@discuss ions.microsoft. com> wrote in message
news:AD******** *************** ***********@mic rosoft.com... hi,
i have a garbage collection problem. i have an application writen by
vb.net, i am opening a form and in this form there is a big query. when i
open the form, it takes 80 mb memory because of the data table. when i
closed
the form it is already taking 80 mb memory. where is garbage collection? i
am
waiting 30 minutes but memory usage is not decreasing. what must i do?
thanks,
Ömer KUL
When there is no garbage, there is nothing to collect, that's how the GC
works, so in your case there is no garbage because you are still holding
references to your Data Tables. Please post your code if you want to get any
more help.
Willy.
Ömer KUL wrote: i have a garbage collection problem. i have an application writen by
vb.net, i am opening a form and in this form there is a big query. when i
open the form, it takes 80 mb memory because of the data table. when i closed
the form it is already taking 80 mb memory. where is garbage collection? i am
waiting 30 minutes but memory usage is not decreasing. what must i do?
Merely waiting won't do anything - garbage collection is triggered by
allocations, not a timer.
-- www.midnightbeach.com
"Ömer KUL" <me****@discuss ions.microsoft. com> wrote in message
news:AD******** *************** ***********@mic rosoft.com... Hi Willy,
i am closing the form that increases the memory usage. are not the all
variables and controls on the form disposed? after now, does not the GC
collect them?
No, only those variables that are only referenced on the form will be
available for GC, and just because they're available doesn't mean they will
be GC'd.
i can not send you all code, because it is an ERP packet and it is 50 mb
when zipped. i can send you code samples if you want.
thanks
Ömer KUL
"Willy Denoyette [MVP]":
"Ömer KUL" <me****@discuss ions.microsoft. com> wrote in message
news:AD******** *************** ***********@mic rosoft.com... > hi,
> i have a garbage collection problem. i have an application writen by
> vb.net, i am opening a form and in this form there is a big query. when
> i
> open the form, it takes 80 mb memory because of the data table. when i
> closed
> the form it is already taking 80 mb memory. where is garbage
> collection? i
> am
> waiting 30 minutes but memory usage is not decreasing. what must i do?
> thanks,
> Ã-mer KUL
When there is no garbage, there is nothing to collect, that's how the GC
works, so in your case there is no garbage because you are still holding
references to your Data Tables. Please post your code if you want to get
any
more help.
Willy.
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