Ted, Why would the COM threading world have any impact on a remoting application?
Rich > -----Original Message----- > From: Discussion of advanced .NET topics. [mailto:ADVANCED- > [EMAIL PROTECTED] On Behalf Of Ted Neward > Sent: 25 March 2008 17:34 > To: ADVANCED-DOTNET@DISCUSS.DEVELOP.COM > Subject: Re: [ADVANCED-DOTNET] Remoting, Threading and Concurrency > > Don't forget that WinForms apps run the event thread in a COM STA, so > that > *may* account for some of the serialization of method calls you're > seeing. > > Shouldn't happen in a console app, though, unless you explicitly marked > Main() as such, so I dunno how much that helps. :-/ > > Ted Neward > Java, .NET, XML Services > Consulting, Teaching, Speaking, Writing > http://www.tedneward.com > > > > -----Original Message----- > > From: Discussion of advanced .NET topics. [mailto:ADVANCED- > > [EMAIL PROTECTED] On Behalf Of Jeremy Byron > > Sent: Thursday, March 20, 2008 9:57 AM > > To: ADVANCED-DOTNET@DISCUSS.DEVELOP.COM > > Subject: Re: [ADVANCED-DOTNET] Remoting, Threading and Concurrency > > > > I've also tried hosting the object in IIS and in a WinForms app. > Same > > result in both cases. > > > > Jeremy > > > > > > > > -----Original Message----- > > From: Discussion of advanced .NET topics. > > [mailto:[EMAIL PROTECTED] On Behalf Of Wilson, > Phil > > Sent: Thursday, March 20, 2008 1:43 PM > > To: ADVANCED-DOTNET@DISCUSS.DEVELOP.COM > > Subject: Re: [ADVANCED-DOTNET] Remoting, Threading and Concurrency > > > > > > Is this something to do with the server being a console app? I have > a > > nagging feeling that they are single-threaded somewhere. > > > > Phil Wilson > > > > -----Original Message----- > > From: Discussion of advanced .NET topics. > > [mailto:[EMAIL PROTECTED] On Behalf Of Jeremy > Byron > > Sent: Thursday, March 20, 2008 7:44 AM > > To: ADVANCED-DOTNET@DISCUSS.DEVELOP.COM > > Subject: Re: [ADVANCED-DOTNET] Remoting, Threading and Concurrency > > > > Hi, > > > > Each button-worker-threads uses the following line to get the proxy: > > > > retObj = (T)Activator.GetObject(type, "tcp://" + serverName + > > ":" + port.ToString() + "/" + objUri); > > > > They are not using a single instance or anything. > > > > Regards, > > > > Jeremy > > > > -----Original Message----- > > From: Discussion of advanced .NET topics. > > [mailto:[EMAIL PROTECTED] On Behalf Of Richard > > Blewett > > Sent: Thursday, March 20, 2008 10:52 AM > > To: ADVANCED-DOTNET@DISCUSS.DEVELOP.COM > > Subject: Re: [ADVANCED-DOTNET] Remoting, Threading and Concurrency > > > > > > Are the calls using the same proxy or do they both spin up their own > > proxy > > > > Regards > > > > Richard Blewett - DevelopMentor > http://www.dotnetconsult.co.uk/weblog2 > > > > > > > -----Original Message----- > > > From: Discussion of advanced .NET topics. [mailto:ADVANCED- > > > [EMAIL PROTECTED] On Behalf Of Jeremy Byron > > > Sent: 20 March 2008 13:30 > > > To: ADVANCED-DOTNET@DISCUSS.DEVELOP.COM > > > Subject: [ADVANCED-DOTNET] Remoting, Threading and Concurrency > > > > > > Hello everyone, > > > > > > I have been struggling with this for a few weeks now. I have > > searched > > > > > on the web high and low, purchased "advanced" remoting books, > > searched > > > > > newsgroups and these discussion group's archives. I see hints of > > > explanations/solutions, but nothing that seems to work or explain > > what > > > > > is going on. > > > > > > We are not doing anything special. We are just trying to create > some > > > objects that will be remoted and accessed by WinForms clients and > > > ASP.NET clients. But we are noticing that the requests are being > > > processed on the server sequentially. So basically, the remoting > > > object processes one call at a time, with concurrent requests > > > blocking. > > > > > > I have created a test project (source is available, but I suspect > > > someone will be able to answer this without needing to see the > > source. > > > > > This seems like such a basic issue I'm sure someone has some > > insight). > > > > > Very basic. > > > > > > One remoted object - two methods: LongRunningProcess() and > > > ShortRunningProcess() > > > Server is Console app - just sets up the remoting and remotes the > one > > > object (no config file, all done via code) Client is a WinForms > > > application. Single form with two buttons, one for each of the > > > methods (and a corresponding textbox to see the results). Each > button > > > spawns a worker thread to make the remote call, so calls are > > > not blocking on client-side. > > > Using TCP/Binary channel/formatter. > > > > > > Each of the remote functions is the same, enter a tight loop for a > > > specified period of time then return a string with time loop > started, > > > time loop ended, thread id and threadPool status of each thread. > > > LongRunning just loops for 30 seconds and shortRunning loops for 3. > > > > > > So here's the problem. > > > > > > When I run the test, I click "Start Long Running" then immediately > > > click "Start Short Running". After 30 seconds, the LongRunning > > > returns, then 3 seconds later ShortRunning returns. Server Thread > > IDs > > > > > are the same and it is a threadpool thread. (Client ThreadIDs are > > > different > > > obviously) Obviously the calls are blocking so the remoting host > can > > > only process one request at a time??? > > > > > > Now, I try putting a "Thread.Sleep(250)" in the loop of the long > > > running, now when I click my two buttons, ShortRunning returns > after > > 3 > > > > > seconds and LongRunning returns after 30 seconds and they both have > > > different threadIDs and both threads are threadPool threads. > > > > > > I was under the impression that on the remoting server side, the > > > requests were handled via the threadpool and hence did not block > each > > > other. But from my results it sounds more complicated then that. > It > > > would seem to be quite detrimental to throughput to have requests > > > blocking each other like this. And I would think that if it was a > > > requirement for me to spawn worker threads in my remotedObject (or > > use > > > > > the sleep method) that would be documented somewhere. But I've > never > > > seen it anywhere. > > > > > > I've tried using SingleCall and Singleton for my remoted object > (one > > > post I read said Singleton was multi-threaded whereas Singlecall > was > > > not). I've even tried changing my host to IIS (and using the > > remoting > > > > > config file) with the same results. > > > > > > Does anyone have any insight on how to get my object to process > > > requests concurrently? > > > > > > Thanks in advance. > > > > > > Jeremy > > > > > > =================================== > > > This list is hosted by DevelopMentor. 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? 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. http://www.develop.com > > > > View archives and manage your subscription(s) at > > http://discuss.develop.com > > > > No virus found in this incoming message. > > Checked by AVG. > > Version: 7.5.519 / Virus Database: 269.21.7/1336 - Release Date: > > 3/20/2008 9:48 AM > > > > No virus found in this outgoing message. > Checked by AVG. > Version: 7.5.519 / Virus Database: 269.22.0/1342 - Release Date: > 3/25/2008 > 10:26 AM > > =================================== > This list is hosted by DevelopMentorR http://www.develop.com > > View archives and manage your subscription(s) at > http://discuss.develop.com =================================== This list is hosted by DevelopMentor® http://www.develop.com View archives and manage your subscription(s) at http://discuss.develop.com
