Fair enough :) On 9/6/07, Wilson, Phil <[EMAIL PROTECTED]> wrote: > Well of course it's worth taking a look, that's what I go on to say. As > I said, I've *known* apps stop/start services like that, but that's just > an observation, not a recommendation. And there's a certain amount of > tongue-in-cheek in my remark that looks like it was missed. Anyone > looking for an API to release unneeded leaked memory or handles is not > going to find anything more practical than ExitProcess. Seriously... > ;=) > > In defense of a case I saw, I'd add that stop/start the service was a > temporary solution that worked very well because the alternative was to > crash a limited memory embedded XP system once a week. A fix to stop and > start the service every few days was an easy QFE that prevented a great > deal of customer grief until the leaks were all identified, especially > when testing that the leaks are gone takes at least a week of runtime. > > Phil Wilson > > > -----Original Message----- > From: Discussion of advanced .NET topics. > [mailto:[EMAIL PROTECTED] On Behalf Of Greg Young > Sent: Thursday, September 06, 2007 11:38 AM > To: ADVANCED-DOTNET@DISCUSS.DEVELOP.COM > Subject: Re: [ADVANCED-DOTNET] l immediately release any unneeded memory > > > The API you need is called ExitProcess...... Seriously, I have known > > of apps where services are periodically shut down because of growing > > memory usage. Whether this will work in your situation is something > > you'll have to look at. > > Don't you think it would be worth taking a look at whats going on in > SOS before taking such hacky and non-productive measures? Its at the > least worth finding out if there *is* actually a memory leak no? > > Cheers, > > Greg > > On 9/6/07, Wilson, Phil <[EMAIL PROTECTED]> wrote: > > The API you need is called ExitProcess...... Seriously, I have known > > of apps where services are periodically shut down because of growing > > memory usage. Whether this will work in your situation is something > > you'll have to look at. > > > > Doing everything right in .NET doesn't necessarily help. If you search > > Help & Support for "memory leak" you'll find plenty of hits on leaks > in > > the underlying OS components (sometimes the framework), and if you're > > unlucky your service is inadvertently running into them. You first > need > > to find out if what they're seeing is actually a leak, and then try to > > identify it from the .NET angle and maybe from the process angle if > you > > can't identify something like leaked (unmanaged) resources in your > code. > > > > > > It's not clear to me how the managed heaps inside a process are > handled. > > More memory will be allocated as more objects get created, so managed > > heap size will increase, and so will the memory used by the process. > > Even if objects are released, does the memory used by managed heaps > get > > freed? I suspect that reducing the size of a managed heap is a rare > > occurrence on a system with plenty of free memory, so the process > > statistics might be showing that a lot of memory is being used, but a > > large part of that memory might be managed heaps that aren't being > fully > > used for managed objects. Perhaps peaks in managed memory usage cause > > managed heaps to grow larger but the actual heaps aren't reduced in > size > > when objects are released, especially when there's no memory pressure > on > > the system. > > > > There's this: > http://blogs.msdn.com/ricom/archive/2004/12/10/279612.aspx > > > > > > Ironically, this: http://support.microsoft.com/kb/923299 > > > > > > Phil Wilson > > > > > > -----Original Message----- > > From: Discussion of advanced .NET topics. > > [mailto:[EMAIL PROTECTED] On Behalf Of Tracy Ding > > Sent: Wednesday, September 05, 2007 10:17 AM > > To: ADVANCED-DOTNET@DISCUSS.DEVELOP.COM > > Subject: Re: [ADVANCED-DOTNET] l immediately release any unneeded > memory > > > > Q: Why do you want to do it yourself? > > > > A: One customer noticed service process had a large number of pages in > > use and worried about a memory leak. > > > > > > Sincerely, > > > > Tracy Ding > > > > > > -----Original Message----- > > From: Discussion of advanced .NET topics. > > [mailto:[EMAIL PROTECTED] On Behalf Of Patrick > Steele > > Sent: Wednesday, September 05, 2007 9:40 AM > > To: ADVANCED-DOTNET@DISCUSS.DEVELOP.COM > > Subject: Re: [ADVANCED-DOTNET] l immediately release any unneeded > memory > > > > No. The garbage collector handles that for you. If you're utilizing > > unmanaged resources (files handles, windows handles, etc...), > implement > > the IDisposable interface to make sure you release the resources. > > > > Why do you want to do it yourself? > > > > --- > > Patrick Steele > > http://weblogs.asp.net/psteele > > > > > > -----Original Message----- > > From: Discussion of advanced .NET topics. > > [mailto:[EMAIL PROTECTED] On Behalf Of Tracy Ding > > Sent: Wednesday, September 05, 2007 12:35 PM > > To: ADVANCED-DOTNET@DISCUSS.DEVELOP.COM > > Subject: [ADVANCED-DOTNET] l immediately release any unneeded memory > > > > > > Is there some sort of .NET call that will immediately release any > > unneeded memory for service process? > > > > =================================== > > This list is hosted by DevelopMentor(r) http://www.develop.com > > > > View archives and manage your subscription(s) at > > http://discuss.develop.com > > > > =================================== > > This list is hosted by DevelopMentor(r) http://www.develop.com > > > > View archives and manage your subscription(s) at > > http://discuss.develop.com > > > > =================================== > > This list is hosted by DevelopMentor(r) http://www.develop.com > > > > View archives and manage your subscription(s) at > http://discuss.develop.com > > > > > -- > Studying for the Turing test > > =================================== > This list is hosted by DevelopMentor(r) http://www.develop.com > > View archives and manage your subscription(s) at > http://discuss.develop.com > > =================================== > This list is hosted by DevelopMentor(r) http://www.develop.com > > View archives and manage your subscription(s) at http://discuss.develop.com >
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