LocalReport求助效率问题

[Hidden518]

获取大概1万张报表数据，填充rdlc报表参数，

遍历执行，生成图片大概1000张左右内存不行然后程序挂了。有什么办法解决呢！

            string deviceInfo =
             "<DeviceInfo>" +
              "  <OutputFormat>JPEG</OutputFormat>" +
              "  <PageWidth>210mm</PageWidth>" +
              "  <PageHeight>148mm</PageHeight>" +
              "  <MarginTop>0mm</MarginTop>" +
              "  <MarginLeft>0mm</MarginLeft>" +
              "  <MarginRight>0mm</MarginRight>" +
              "  <MarginBottom>0mm</MarginBottom>" +
              "</DeviceInfo>";

LocalReport.Render("Image", deviceInfo, CreateStream, out warnings);

  private static Stream CreateStream(string name, string fileNameExtension, Encoding encoding, string mimeType, bool willSeek)
{
   string value = Guid.NewGuid().ToString();
   stream = new FileStream(Patid + value + "." + fileNameExtension, FileMode.Create);
}