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Цитата(mihryak @ 22.5.2008, 10:07)

скорее всего утечка вызвана незакрытыми стримами или WebResponse'ами
вызывай в конце использования в блоке finally Close() или заверни использование в using

если не поможет, посмотри, как можно оптимизировать работу с памятью
сделай, к примеру, регулярное выражение строковой константой и единственный компилируемый инстанс Regex'а (в конструктор передав RegexOptions.Compiled)

без кода сложно что-либо ещё посоветовать

Код



                        ArrayList Params = new ArrayList();
                        XPathNavigator xpn = xml.CreateNavigator();
                        XPathNodeIterator it = xpn.Select("//sources/source[@name='2']/information[@type='" + type.ToString() + "']/tasks/grouptask");
                        string id_group = String.Empty;
                        while (it.MoveNext()) //loop for group of task
                        {
                            url = it.Current.GetAttribute("baseurl", String.Empty);  //url for GroupTask
                            xpath = it.Current.GetAttribute("xpath", String.Empty);  //RegExp for GroupTask

                            XPathNodeIterator it1 = it.Current.Select("task/params");
                            while (it1.MoveNext()) //loop for Params for tasks
                            {
                                XPathNavigator groupidPath = it1.Current.SelectSingleNode("..");
                                id_group = groupidPath.GetAttribute("groupid", String.Empty);
                                XPathNodeIterator it2 = it1.Current.Select("param");
                                Params.Clear();
                                while (it2.MoveNext())
                                {
                                    Params.Add(it2.Current.Value.ToString());
                                }
                                string urlwithparams = null;
                                urlwithparams = url;
                                //insert params into url
                                for (int i = 0; i < Params.Count; i++)
                                {
                                    urlwithparams = urlwithparams.Replace(":par" + Convert.ToString(i + 1) + ":", Params[i].ToString());
                                }
                                try
                                {
                                    HttpWebRequest http = (HttpWebRequest)WebRequest.Create(urlwithparams);
                                    WebProxy proxy = new WebProxy();
                                    proxy.Address = new Uri(Init.GetProxy());
                                    http.Proxy = proxy;
                                    response = (HttpWebResponse)http.GetResponse();
                                }
                                catch
                                {
                                    Init.log("Error download");
                                    continue;
                                }
                                Stream receiveStream = response.GetResponseStream();
                                StringBuilder sb = new StringBuilder();

                                int Length = 1024*32;
                                Byte[] buffer = new Byte[Length];
                                int bytesRead = receiveStream.Read(buffer, 0, Length);
                                while (bytesRead > 0)
                                {
                                    sb.Append(System.Text.Encoding.UTF8.GetString(buffer, 0, bytesRead));
                                    bytesRead = receiveStream.Read(buffer, 0, Length);
                                }
                                buffer = null;
                                
                                receiveStream.Close();
                                receiveStream.Dispose();
                                response.Close();
                                //Select matches
                                Regex rx = new Regex(xpath);
                                MatchCollection matches = rx.Matches(sb.ToString());
                                responseString = null;
                                foreach (Match match in matches)
                                {
                                    files.Add(match.Groups[1].Value);
                                    group.Add(id_group);
                                }
                                rx = null;
                                matches = null;
                               
                               
                            }
                            
                        }