Need help My program takes 30% of my i7 2600k processor

[Neolitz]

i wonder why my processor takes 30% of my processor
i even use i7 2600k

when i tried at my pc at work it takes almost 100%
but the pc didnt lag at all..

i use a timer - inverval 100
and use 1 background woker

any idea??

[Erendar]

A bit of your code would be appreciated as we can't figure what it's doing

[Neolitz]

i can't really give the full code because its like 1500++ line.
so i dont even think it will help..

so i figure and take what they do.
some of them still a function.. so

ill explain a little bit

add(parameter) = add to list
getFiles(parameter) = recursive for taking folder directory based on what user drag and drop

so basicly this timer doing anything else. but it never take like this..

after i implement the background worker here the problem comes..
i just wonder do they really gone if i dispose it?
after all i went to give List to a Background worker so every files added to my list .
will be added and not wait for all files be read.

why i use multiple background worker is simple as like this
after i add. i wanted my files to be added to the datagridview.
so i create a background worker named thread..
he is the one and only one background worker still running even the data already added all.

for the background worker is like this

private void bg_RunWorkerCompleted(object sender,RunWorkerCompletedEventArgs e) 
        {
            BackgroundWorker temp = sender as BackgroundWorker;
            temp.Dispose();
            bg.Remove(temp);
        }
        private void bg_DoWork(object sender,DoWorkEventArgs e) 
        {
            Add_list al = (Add_list)e.Argument;
            String[] directoryName = al.data;

            foreach (string data in directoryName)
            {
                if (data.LastIndexOf(".") >= 0
                    && (data.Substring(data.LastIndexOf(".")).ToLower().Equals(".mp3")
                        || data.Substring(data.LastIndexOf(".")).ToLower().Equals(".flac"))
                    )
                {
                    add(data, al.header);
                }
                else
                {
                    getFiles(data, al.header);
                }
            }
        }
        private void thread_DoWork(object sender,DoWorkEventArgs e) 
        {

        }
        private void thread_RunWorkerCompleted(object sender ,RunWorkerCompletedEventArgs e) 
        {
            if (add_lastIndex < x.Count) 
            {
                addToListBasedOnHeader(x[add_lastIndex]);
                add_lastIndex++;
            }
            thread.RunWorkerAsync();
        }
        private void read_bg_DoWork(object sender, DoWorkEventArgs e)
        {
            String[] ListName = (String[])e.Argument;
            try
            {
                for (int i = 0; i < ListName.Length; i++)
                {
                    StreamReader sr = new StreamReader(Application.StartupPath + "/playlist/" + ListName[i] + ".dmpp");
                    String list_Error = "";
                    List<String> temp = new List<string>();
                    while (!sr.EndOfStream)
                    {

                        String path = sr.ReadLine();
                        if (!path.Equals(""))
                        {

                            //This Slower Because CHECKING ALL DATA WHEN READ
                            String File = path;
                            if (System.IO.File.Exists(File))
                            {
                                //add(File,ListName.Items[i].ToString());
                                temp.Add(File);
                            }
                            else list_Error += File + Environment.NewLine;

                            // this not check before adding
                            //add(path, ListName.Items[i].ToString());

                        }
                    }
                    if (!list_Error.Equals("")) MessageBox.Show(list_Error + "All List Above Was Not Found..");
                    sr.Close();
                    Add_list al = new Add_list();
                    al.data = temp.ToArray();
                    al.header = ListName[i];
                    addBG();
                    bg[bg.Count - 1].RunWorkerAsync(al);
                }

            }
            catch (Exception ex) { MessageBox.Show(ex.Message); }
        }
        private void read_bg_RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e)
        {
            BackgroundWorker temp = sender as BackgroundWorker;
            temp.Dispose();
            bg.Remove(temp);
        }

and for the timer

private void value_Tick(object sender, EventArgs e)
        {
            autosetcolor();
            //label3.Text = "" + bg.Count;
            //label3.Text = x.Count + "-" + list[ListName.SelectedIndex].Rows.Count;
            if (WindowState == FormWindowState.Minimized && minimized == 0)
            {
                if (option.mtst.Checked == true)
                {
                    GoToTray();
                }
            }

            if (status_play == 1 )
            {
                //seek_bar.Maximum = (int)wmp.controls.currentItem.duration;
                try
                {
                    if (status_down == 0) seek_bar.Value = (int)wmp.controls.currentPosition;
                    DurationText.Text = "";
                    if ((int)wmp.controls.currentPosition / 60 < 10) DurationText.Text += "0";
                    DurationText.Text += (int)wmp.controls.currentPosition / 60;
                    DurationText.Text += ":";
                    if ((int)wmp.controls.currentPosition &#37; 60 < 10) DurationText.Text += "0";
                    DurationText.Text += (int)wmp.controls.currentPosition % 60;
                    DurationText.Text += "/";
                    if ((int)wmp.controls.currentItem.duration / 60 < 10) DurationText.Text += "0";
                    DurationText.Text += (int)wmp.controls.currentItem.duration / 60;
                    DurationText.Text += ":";
                    if ((int)wmp.controls.currentItem.duration % 60 < 10) DurationText.Text += "0";
                    DurationText.Text += (int)wmp.controls.currentItem.duration % 60;
                }
                catch (Exception ex) { MessageBox.Show(ex.Message); }
            }
        }

[BioPhysEngr]

If your system is reporting 25% processor utilitzation on a quad-core system (for example, an i7) then it (likely) means some process is fully utilizing one (of four) cores. This probably occurs because you're calling a subroutine very 100 ms that takes longer than 100 ms to complete (thus, constant utilization).