Question

我在内存分配方面遇到了一些问题。例如：

            long mem1 = GC.GetTotalMemory(true); 
            //mem1 = 2954648
            using(StreamReader sr = File.OpenText(url_File))
            {
            // File size ~ 350MB
                while (!sr.EndOfStream)
                {
                    AkcjaSeries.Data.Add(AkcjeRecord.Parse(sr.ReadLine(), columnDescription, datePattern, separators));
                    linesCount++;
                    if (linesCount%100000 == 0)
                    {
                        textBox.Text = linesCount.ToString();
                    }
                }
            }
            textBox.Text = linesCount.ToString();
            long mem2 = GC.GetTotalMemory(true); // = 760587356
            GC.Collect();
            GC.WaitForFullGCComplete();    // I use all this method 
            GC.WaitForPendingFinalizers(); // beceuse i realy need free memory
            GC.WaitForFullGCApproach();    //
            long mem3 = GC.GetTotalMemory(true); // = 760587356 (the same as mem2)

和班级看起来像：

  public class AkcjaSeries : ObservableCollection<AkcjeRecord>
  {
    public static AkcjaSeries Data = new AkcjaSeries();

    public const int MaxElementsInChart = 100;

    private String name;
    public String Name
    {
        get { return name; }
        set { name = value; }
    }
  }

和

   public class AkcjeRecord : DependencyObject
  {

    public static readonly string[] Separators = { "\t", " " };

    public static readonly DependencyProperty DateProperty = DependencyProperty.Register("Date", typeof(DateTime), typeof(AkcjeRecord));
    public static readonly DependencyProperty CostProperty = DependencyProperty.Register("Cost", typeof(double), typeof(AkcjeRecord));

    public DateTime Date
    {
        get { return (DateTime)GetValue(DateProperty); }
        set { SetValue(DateProperty, value); }
    }

    public double Cost
    {
        get { return (double)GetValue(CostProperty); }
        set { SetValue(CostProperty, value); }
    }

    public static AkcjeRecord Parse(string line, int[] columnDestination, string dataPattern, string[] separators )
    {

        AkcjeRecord akcjaRecord = new AkcjeRecord();

        string[] dividedLine;

        dividedLine = line.Split(separators, StringSplitOptions.RemoveEmptyEntries);

        akcjaRecord.Cost = Double.Parse(dividedLine[columnDestination[0]], CultureInfo.InvariantCulture);

        string dateAndTime = dividedLine[columnDestination[1]] + dividedLine[columnDestination[2]];

        DateTime date;
        TimeSpan time;

        date = DateTime.ParseExact(dividedLine[columnDestination[1]], dataPattern, CultureInfo.InvariantCulture);

        time = TimeSpan.Parse(dividedLine[columnDestination[2]]);


        date = date.Add(time);

        akcjaRecord.Date = date;

        return akcjaRecord;

    }

@QUESTION

为什么当我打电话给methond 所以GC.Collect（）; 我对此没有任何影响。（我写评论需要多少内存程序）我做错了什么？顺便说一下......我每行只需要60％的数据文件行示例：

    20100729    09:34:15.948    70.07   167022  319

（我只解析1,2,3列）

总使用内存 - 免费内存

0 个答案: