C＃.Net Close应用程序超出内存使用量

Question

I have an application which deals with huge amount of in-memory data. Now, sometimes what happens is that memory limit of 2GB/app is reached and my program hangs. The memory usage in the task manager goes haywire (continuously fluctuates from 2GB to 6GB) What I want is that when the memory usage reaches a particular limit, the program should gracefully exit. I don't want manual intervention of user killing the app. Is this possible?

Answer 1

You should allocate a background monitoring thread, which polls System.Diagnostics.Process.GetCurrentProcess().PrivateMemorySize64 and then acts accordingly to the size returned.

Eg.

public class MonitoringThread : Thread{
...

bool working = true;
void run(){
   while(working){
      long size = Process.GetCurrentProcess().PrivateMemorySize64;
      if (size > 2000000000){
         //do anything
      }
      else {
         try{
            Thread.Sleep(1000);
         }
         catch{}
      }
   }
}

}

Please note that I just wrote this code in this page, so it may be not too accurate :)

Answer 2

You could use Garbage Collection Notifications to be alerted when a full Garbage Collection has completed.

In response to that, you could check GC.GetTotalMemory() to see how much memory is currently used, and take the appropriate action if it is too high.