Azure Blob存储-复制速度是多少？

Question

我需要生成一个SAS链接来发送到其他服务，这个服务将使用CopyFromUrl方法复制文件，我想根据文件的大小来设置过期时间，但是…。我在文档中找不到任何页面，上面写着复制操作的速度。有人能用这个指引我吗？

Answer 1

您可以测试从世界各地的Azure存储服务下载速度。通过这些AzureSpeed服务。

或

您可以使用这些代码检查下载速度。在我的我使用这些代码检查3个文件的速度。21 mb，100 mb和675 mb文件。

static async Task Main(string[] args)
        {
            await GetFileAsync("https://myaccount/210mb.pdf?sp=r&st=2022-07-02T10:22:24Z&se=2022-07-03T18:22:24Z&sv=2021-06-08&sr=b&sig=zwhyKzuGhuUxxX8PEpgnwFzbhfg4x1UoPzNUvclQQGo%3D", 21);
            await GetFileAsync("https://myaccount/100mb.pdf?sp=r&st=2022-07-02T10:23:24Z&se=2022-07-03T18:23:24Z&sv=2021-06-08&sr=b&sig=AFRSJkdgeHeCyAba%2F3vSTwGUvGDj1J%2B8netAvgOsk5U%3D", 100);
            await GetFileAsync("https://myaccount/1gb.pdf?sp=r&st=2022-07-02T10:23:46Z&se=2022-07-03T18:23:46Z&sv=2021-06-08&sr=b&sig=cydqUlULOTnY8ruEo2ixSJX6ZQGAbCLnlcKzjLD4KXo%3D", 675);

        }

 static async Task GetFileAsync(string file, int size)
        {
            HttpClient client = new HttpClient();

            Stopwatch sw = new Stopwatch();
            sw.Start();
            using (var stream = await client.GetStreamAsync(file))
            {
                using (MemoryStream ms = new MemoryStream())
                {
                    byte[] buffer = new byte[1024];
                    var totalBytes = client.MaxResponseContentBufferSize;
                    var receivedBytes = 0;

                    for (; ; )
                    {
                        int bytesRead = await stream.ReadAsync(buffer, 0, buffer.Length);
                        if (bytesRead == 0)
                        {
                            await Task.Yield();
                            break;
                        }

                        receivedBytes += bytesRead;

                        int received = unchecked((int)receivedBytes);

                        Console.Write("\r" + received / (1024) + "Kb");
                    }
                    sw.Stop();
                    double speeds = receivedBytes/sw.Elapsed.TotalSeconds;
                    Console.WriteLine("\n");
                    Console.WriteLine(Math.Round(speeds/1024) + " bytes/s, Total Time taken for downloading "+size +" mb size file :- "+ sw.Elapsed.TotalSeconds+" Seconds");
                    //var speed = size / sw.Elapsed.TotalSeconds;
                    //Console.Write("\t[" + Math.Round(speed / 1024, 2) + " MB/s]");
                    Console.WriteLine("\n");
                }
            }
        }

输出

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