C # Multi-threading, control thread count improves cycle output efficiency

Source: Internet
Author: User

C # Multithreading and controlling the number of threads for the For loop output efficiency.

Although the output is irregular, the efficiency is obviously improved.

Ideas:

If you want to delete 1000 data, use a For loop only, then one output. So, 1000 pieces of data are divided into seed segments and 10 pieces of data per segment.

int seed = Convert.ToInt32 (createcount.value)% 10 = = 0? Convert.ToInt32 (Createcount.value)/10:convert.toint32 (Createcount.value)/10 + 1;

Note: The value of Createcount.value is the number of specific output data

Here the data is allocated to seed threads to process, and each thread only outputs 10 data.

        int threadcounttmp = 0;//Task thread is assigned the number private void Btncreate_click (object sender, EventArgs e) { int seed = Convert.ToInt32 (createcount.value)% 10 = = 0?            Convert.ToInt32 (Createcount.value)/10:convert.toint32 (Createcount.value)/10 + 1; for (int i = 0; i < seed; i++) {Thread threadtmp = new Thread (New Parameterizedthreadstart (T                Empout));                Threadtmp.start (i);                threadcounttmp++; Application.doevents ();//Response window state while (true) {if (Threadcounttmp < ten) break;} Push-pull window control multi-threaded Threads 10}}//Segment data post to other threads public void Tempout (object o) {int Tmp=co Nvert.            ToInt32 (o) *10;            int i = tmp; for (; i < (tmp+10<=createcount.value?tmp+10:createcount.value); i++) {Thread thread = NE                W Thread (New Parameterizedthreadstart (resultout)); Thread.                Start (i); Threadcount++; while (true) {if (ThreadCount < ten) break;}        Push-and-pull window control multithreading threads number of ten} threadcounttmp--; }

After the segmentation, then the segmented data is allocated to other threads to handle, so that the multi-threading can work at the same time, because of the control operation, so the use of multithreading to rely on the delegation to implement multi-threaded control of the control. So the output of the last step is as follows:

        delegate void Texttmp (object o);//Declaration delegate        int threadcount = 0;//task thread        //delegate function public        void Resultout (Object o)        {            if (!txtresult.invokerequired)            {                txtresult.text = "\ n" + F_groundcode. Text + "," + F_ticketno. Text + DateTime.Now.ToLongDateString (). Replace ("-", "") + Getzero (6-o.tostring (). Length) + o.tostring () + "," + DateTime.Now.ToLongDateString (). Replace ("-", "") + DateTime.Now.ToLongTimeString (). Replace (":", "") + Txtresult.text;            }            else            {                texttmp Tmpdel = new Texttmp (resultout);                This. Invoke (Tmpdel,o);            }            threadcount--;        }

Because my data has to guarantee the number of bits, so I want to do 0 simple processing. For example I want to output

000000

000001

000002

000003

........

As you can see from the code above, I use for to increment. So it's an integral type, and the previous 0 is changing the number of values as the number changes.

        How many 0        private string getzero (int leng)        {            string result = "            in front of the number to handle); for (int i = 0; i < Leng; i++)            {                result + = "0";            }            return result;        }

All right. A simple multithreading process. I hope everyone can learn. Welcome everyone to guide ~ ~

C # Multi-threading, control thread count improves cycle output efficiency

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