I'm not sure how feasible that idea could be. SO much of an application depends on having everything registered and ready to go before any actual services are invoked. For instance, my project uses Rhino Service Bus, which depends heavily on the GetAssignableHandlers and similar methods on the kernel. If a critical message came in and we weren't finished registering services (AKA Message Consumers), that message could be lost forever since GetAssignableHandlers would not return all of the expected handlers.
I'd much rather have some form of lazy initialization of handlers and dependencies to amortize whatever this startup cost is, but I'm not sure right now how that might look. -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of James Curran Sent: Wednesday, September 16, 2009 10:31 AM To: [email protected] Subject: Re: long startup time This leads to interesting question. Since, one presumes you won't need all 1000 service immediately, could building the container be spun off as a background task? This of course would lead to some interesting race conditions, but if most of those services are for corner cases (ie, say 90% of your functionality could be handled by 10% of the services), then it just become a case of filling it in th eproper order, and releasing semaphores as you go. On Wed, Sep 16, 2009 at 12:05 PM, Tyler Burd <[email protected]> wrote: > I have another similar project that has around 300 services, and the average > AddComponent time there is 20ms, so that would make sense. I'll try to get > profile results today (have to buy dotTrace first). > > > > From: [email protected] > [mailto:[email protected]] On Behalf Of Ayende Rahien > Sent: Wednesday, September 16, 2009 3:00 AM > To: [email protected] > Subject: Re: long startup time > > > > IIRC, > > We saw something like that previously, I think that there is an O(N) > operation in Windsor somewhere. > > On Wed, Sep 16, 2009 at 7:19 AM, Tyler Burd <[email protected]> wrote: > > Hi all, > > > > I've got a large application that takes about 1 minute to start up. I > investigated today what could be the cause of this very long delay, and > narrowed it down to the WindsorContainer.AddComponent method. I have about > 1000 service classes, each with an interface (the service type). The > average time to call WindsorContainer.AddComponent is 52ms on my system. > 52ms * 1000 is 52 seconds, which is the vast majority of the app's startup > time. > > > > My system is a Quad Core, 2.66GHz Core2 running Windows XP. The same > approximate startup time can be verified on multiple machines, servers, and > OS's. > > > > Is this normal? Do I have to just bite the bullet on a long startup time, > or is there something I can do to help this? > > > > Here is the block of code in a small executable I used to calculate the > times. I can provide a profile report if necessary. I normally use > AllTypes along with the fluent registration, but I wanted to get as > low-level as possible. This code outputs: > > "Called AddComponent 957 times. Average AddComponent time: 52.0267175572519ms" > > > > > > var container = new WindsorContainer(); > > > > //calculates the time for each AddComponent call > > var watch = new Stopwatch(); > > > > var totalAddComponentCalls = 0; > > > > //keeps track of the average ms to call AddComponent > > var allAddComponentTimes = new List<long>(1000); > > > > foreach (var classType in > typeof(TheBigApplicationThingyWithAllTheServices).Assembly.GetTypes()) > > { > > if (classType.IsInterface) > > continue; > > if (classType.Namespace == null) > > continue; > > if (!classType.Namespace.Contains("Services")) > > continue; > > var interfaces = classType.GetInterfaces(); > > if (interfaces.Length == 0) > > continue; > > var firstInterface = interfaces[0]; > > > > var serviceName = totalAddComponentCalls.ToString(); > //simple way to get unique name > > watch.Start(); > > container.AddComponent(serviceName, firstInterface, > classType); > > watch.Stop(); > > allAddComponentTimes.Add(watch.ElapsedMilliseconds); > > watch.Reset(); > > ++totalAddComponentCalls; > > } > > > > var avgAddCompTime = (from ms in allAddComponentTimes select ms).Average(); > > Console.Out.WriteLine(string.Format("Called AddComponent {0} times. Average > AddComponent time: {1}ms", totalAddComponentCalls, avgAddCompTime)); > > > > > > > > > > -- Truth, James --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Castle Project Users" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/castle-project-users?hl=en -~----------~----~----~----~------~----~------~--~---
