"LZhao" <LZhao@discussions.microsoft.com> wrote in message
news:D25B6701-C1BD-4B09-AC34-512CB2AC3E3E@microsoft.com...
> Hi,
>
> We have find memory leaks when we tried to use timer to raise event at
> specified
> interval. The OS we use is: Windows XP Professional Version 2002, service
> Pack 2,
> IDE is: Visual Studio .NET2003. Microsoft .NET Framework 1.1, version
> 1.1.4322 SP1. To repeat this problem,
>
> 1. creat a VB windows solution
> 2. on the form, add a timer control, set the property interval to 100
> 3. add a button, name it "start"
> 4. add an event handler( command_click) to the button "start"
> 5. in the event handler, start the timer
> 6. watch in the "task manager", memory is prograssively increase,
> 7. to make this problem more clear, add another timer, set the interval to
> 10, again, when the button "start" clicks, start both the timer. this time
> you probably will
> notice the memory leaking faster, in 10 minutes, you will find it is
> leaking
> around 1MB.
>
>
> I tried to change the timer control to System.timers.timer, and use call
> back functions at the specified interval, I have the same problem. Further
> investigation into the memory leaking, we found if you put the thread into
> sleep at certain amount of time, the memory leaks as well.
>
> Is ther any one who knows why? This memory leak crashes our application.
> I tried to force garbage colletion, things getting even worse.
>
> Any suggestions are welcome.
> thanks very much
> Lihui
>
>
>
>
>

"Alvin Bruney [MVP]" <vapor at steaming post office> wrote in message
news:%23pR$G2dFFHA.1084@tk2msftngp13.phx.gbl...
> I'm looking into this.
>
> Using C# though. Initially, I do see memory climbing but not
> significantly. I'm going to let it run for a couple of hours in release
> mode before getting back to you.
>
> --
> Regards,
> Alvin Bruney [Microsoft MVP ASP.NET]
>
> [Shameless Author plug]
> The Microsoft Office Web Components Black Book with .NET
> Now Available @ http://www.lulu.com/owc
> ----------------------------------------------------------
>
>
> "LZhao" <LZhao@discussions.microsoft.com> wrote in message
> news:D25B6701-C1BD-4B09-AC34-512CB2AC3E3E@microsoft.com...
>> Hi,
>>
>> We have find memory leaks when we tried to use timer to raise event at
>> specified
>> interval. The OS we use is: Windows XP Professional Version 2002, service
>> Pack 2,
>> IDE is: Visual Studio .NET2003. Microsoft .NET Framework 1.1, version
>> 1.1.4322 SP1. To repeat this problem,
>>
>> 1. creat a VB windows solution
>> 2. on the form, add a timer control, set the property interval to 100
>> 3. add a button, name it "start"
>> 4. add an event handler( command_click) to the button "start"
>> 5. in the event handler, start the timer
>> 6. watch in the "task manager", memory is prograssively increase,
>> 7. to make this problem more clear, add another timer, set the interval
>> to
>> 10, again, when the button "start" clicks, start both the timer. this
>> time
>> you probably will
>> notice the memory leaking faster, in 10 minutes, you will find it is
>> leaking
>> around 1MB.
>>
>>
>> I tried to change the timer control to System.timers.timer, and use call
>> back functions at the specified interval, I have the same problem.
>> Further
>> investigation into the memory leaking, we found if you put the thread
>> into
>> sleep at certain amount of time, the memory leaks as well.
>>
>> Is ther any one who knows why? This memory leak crashes our application.
>> I tried to force garbage colletion, things getting even worse.
>>
>> Any suggestions are welcome.
>> thanks very much
>> Lihui
>>
>>
>>
>>
>>
>
>