Re: out of memory

Sure Tina.

Anything that implements IDisposable should be disposed. Connections and
DataReaders should always be closed. Any time you open a file, be sure to
close it (best done using a Try/Catch/Finally block, in the Finally block,
to ensure that an exception doesn't foil your plan. Anything involving IO is
expensive, because opening a file means reading the hard drive, rather than
memory. Also, IO is high-priority.

--
HTH,

Kevin Spencer
Microsoft MVP
..Net Developer
What You Seek Is What You Get.

"Tina" <tinamseaburn@xxxxxxxxxxxxxxxxxxxx> wrote in message
news:OxHqxn0VFHA.2172@xxxxxxxxxxxxxxxxxxxxxxx
> Kevin,
> do you have any practical information or know where to look regarding what
> kinds of things Don't get cleaned up. I have connections, and IO streams,
> and things like that. I'm not explicitly disposing of anything and I have
> never read that this was recomended.
> t
>
> "Kevin Spencer" <kevin@xxxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
> news:%235b$PQxVFHA.3320@xxxxxxxxxxxxxxxxxxxxxxx
>> Hi Tina,
>>
>> Yes, it is possible to Manage to write your own custom Managed Memory
>> leak. Garbage Collection IS automatic, but unless you put your cans out
>> on the street, they will never get picked up. IOW, the purpose of Memory
>> Management and Garbage Collection is not to allow you more time to play
>> Solitaire, but to help you prevent your own forest fires, as Smokey the
>> Bandit would say. ;-)
>>
>> The first thing you need to do is to determine that you will, in the
>> future, take more responsibility for your code. As Fox Mulder would say,
>> "Trust No one" (not even content from Microsoft!). Or, as my old boss
>> when I was a carpenter in Skokie Indiana would say "Measure twice, cut
>> once."
>>
>> Second, let's have a look at some diagnostic tools and techniques. One
>> thing I might point out regarding why it may have worked so beautifully
>> on your machine is, when you start a project in Visual Studio for
>> debugging, it restarts the application, thereby wiping out all
>> accumulated memory for that application. If you didn't use Visual Studio,
>> well, you probably didn't put the app under any stress. For example, the
>> Application will stop itself 20 minutes after the last client Request,
>> and won't start again until the next. A good practice is to put the app
>> first on a staging server and then put it under some stress over a long
>> period of time. Microsoft Application Center 2000 is a free tool that you
>> can download from Microsoft.com for testing ASP and ASPO.net apps. It can
>> put a simulated load on your app, enabling you to see how it functions
>> under stress.
>>
>> Windows Taks Manager can be used to monitor memory and processor
>> performance easily while running your app. You can also set up
>> Performance Counters in your app for monitoring and/or recording various
>> aspects of your app's performance while running it.
>>
>> Of course, logging is also an excellent tool to employ in your app for
>> debugging purposes of various types.
>>
>> --
>> HTH,
>>
>> Kevin Spencer
>> Microsoft MVP
>> .Net Developer
>> What You Seek Is What You Get.
>>
>>
>> "Tina" <tinamseaburn@xxxxxxxxxxxxxxxxxxxx> wrote in message
>> news:uCmbp5wVFHA.2572@xxxxxxxxxxxxxxxxxxxxxxx
>>> My asp.net app that ran fine on my dev boxes is having problems at my
>>> web hoster who is running IIS 6. I'm getting Out of Memory exceptoions.
>>> When my web hoster bounces my app, the problem goes away for a couple of
>>> days. Sounds like I have a Memory Leak, but my application is managed
>>> and garbage collection is automatic, right?
>>>
>>> How can I track available memory and what kinds of tools are available
>>> to shoot this kind of problem?
>>> Thanks,
>>> T
>>>
>>
>>
>
>


.

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