How to increase cpu usage and performance in MVC or IIS

Question

I have website and dedicated server for my website.

In my project there is 10^6 loop witch import record from xml file and finally save in database.

The for loop section is not fast as windows application version of this project.

the question is:

Q1: is there any way to increase cpu usage for loop section of my project?

Q2: is there any way to allow highly cpu usage in IIS for my website?

Thank you

Code:

foreach (var row in records)// about 150,000 record
{
    string cs = row.Field<string>("tsb");
    try
    {
        int rowCount = row.Table.Columns.Count - 6;


        string rowUserName = row.Field<string>("UserName").Trim();

        if (rowUserName != userName) 
        {
    task.taskStatus = (int)taskStatus.failed;
    task.details += Languages.Properties.Resources.task_eror_user_unique + ":" + cs; 
    TaskHelper.edit(task);
    return Json(new { success = false, message = Languages.Properties.Resources.task_eror_user_unique + ":" + cs }); 
        }


        long drh = Convert.ToInt32(row.Field<string>("drh"));

        var gm = db.gms.AsNoTracking().FirstOrDefault(g => g.number == drh && g.id_gmState == 1);

        if (gm == null || gm.rowCount != rowCount)    
        {
    task.taskStatus = (int)taskStatus.failed;
    task.details += Languages.Properties.Resources.task_eror_gm_count + ":" + cs; 
    TaskHelper.edit(task);
    return Json(new { success = false, message = Languages.Properties.Resources.task_eror_gm_count + ":" + cs }); 
        }


        int ck = 0;
        int cj = 0;

        try
        {
    ck = Convert.ToInt32(row.Field<string>("_txtcodnakol"));
    cj = Convert.ToInt32(row.Field<string>("_txtcodnajoz"));
        }
        catch
        {
    task.taskStatus = (int)taskStatus.failed;
    task.details += Languages.Properties.Resources.task_erorr_code + ":" + cs; 
    TaskHelper.edit(task);
    return Json(new { success = false, message = Languages.Properties.Resources.task_erorr_code + ":" + cs });
        }


        if (db.Cards.AsNoTracking().Any(c => c.id_user == user.Id && c.cs == cs && c.id_gm == gm.id && c.ck == ck && c.cj == cj))
        {
    task.taskStatus = (int)taskStatus.failed;
    task.details += Languages.Properties.Resources.task_eror_card_unique + ":" + cs; 
    TaskHelper.edit(task);
    return Json(new { success = false, message = Languages.Properties.Resources.task_eror_card_unique + ":" + cs }); 
        }


        string value = "";
        string rowContent = gm.gmRow.gmRowTitles.FirstOrDefault()?.rowContent; 
        int countOption = Regex.Matches(rowContent, "ch=").Count;


        var coefficientValue = gm.CoefficientValues.Any() ? gm.CoefficientValues.FirstOrDefault().value : 1; 
        int realCost = 0;            

        for (int i = 1; i <= gm.rowCount; i++) // at least 15 rows
        {
    string option = row.Field<string>("j" + i);

    var distinctOption = option.Distinct().ToArray();

    if (string.IsNullOrEmpty(option) || option.Length != distinctOption.Length)
    {
        task.taskStatus = (int)taskStatus.failed;
        task.details += Languages.Properties.Resources.task_error_option_null + ":" + i + ":" + cs;
        TaskHelper.edit(task);
        return Json(new { success = false, message = Languages.Properties.Resources.task_error_option_null + ":" + i + ":" + cs });
    }

    for (int j = 0; j < distinctOption.Length; j++)// under 4 count loop
    {
        int item = Convert.ToInt32(distinctOption[j].ToString());
        if (item < 1 || item > countOption)
        {
            task.taskStatus = (int)taskStatus.failed;
            task.details += Languages.Properties.Resources.task_error_option_null + ":" + i + ":" + cs;
            TaskHelper.edit(task);
            return Json(new { success = false, message = Languages.Properties.Resources.task_error_option_null + ":" + i + ":" + cs });
        }
    }

    for (int j = 1; j <= countOption; j++) // under 4 count loop
    {
        if (option?.Contains(j + "") ?? false)
            value += "1,";
        else
            value += "0,";
    }

    if (realCost == 0 && i == 1)
        realCost = 1;
    realCost *= (option.Length * coefficientValue);
        }

        long cost = Convert.ToInt32(row.Field<string>("tmvs")); 


        if ((realCost != cost && (realCost > gm.minCardValue)) || (realCost > gm.maxCardValue)) 
        {
    task.taskStatus = (int)taskStatus.failed;
    task.details += Languages.Properties.Resources.task_eror_card_cost_invalid + ":" + cs;
    TaskHelper.edit(task);
    return Json(new { success = false, message = Languages.Properties.Resources.task_eror_card_cost_invalid + ":" + cs }); 
        }

        if ((realCost != cost && (realCost <= gm.minCardValue))) 
        {
    if (cost != gm.minCardValue)
    {
        task.taskStatus = (int)taskStatus.failed;
        task.details += Languages.Properties.Resources.task_eror_card_cost_invalid + ":" + cs;
        TaskHelper.edit(task);
        return Json(new { success = false, message = Languages.Properties.Resources.task_eror_card_cost_invalid + ":" + cs }); 
    }
        }


        Card card = new Card
        {
    id_gm = gm.id,
    id_user = user.Id,
    id_cardStates = 1,
    value = value,
    Cost = cost,
    cj = cj,
    ck = ck,
    cs = cs
        };
        db.Cards.Add(card);

        progress += perPercent;
        if ((int)progress > task.percentCompleted)
        {
    task.percentCompleted = (int)progress;
    TaskHelper.edit(task);
        }
    }
    catch (Exception ex)
    {
        task.taskStatus = (int)taskStatus.failed;
        task.details += ex.InnerException + ":" + cs;
        TaskHelper.edit(task);
        return Json(new { success = false, message = ex.InnerException + ":" + cs });
    }
}

Answer 1

The problem resolved The main problem was

db.Cards.Add(card);

This method invoked and give many times to add new card

In my new code i used

List<Card> listCard = new List<Card>();

listCard.add(card); //db.Cards.Add(card);

this increased my performance from 35 minutes to 4 seconds