批量上传文件
Azure Blob Storage的最快方法是什么？我尝试了两种方法,同步和异步上传,async显然是最快的,但我想知道是否有更好的方法？是否内置了对批量上传的支持？我在文档中找不到任何内容但可能错过了它.
这是我跑的测试：
static void Main(string[] args)
{
int totalFiles = 10; //10,50,100
byte[] randomData = new byte[2097152]; //2mb
for (int i = 0; i < randomData.Length; i++)
{
randomData[i] = 255;
}
CloudStorageAccount cloudStorageAccount = CloudStorageAccount.Parse(ConfigurationManager.AppSettings["StorageConnectionString"]);
var blobClient = cloudStorageAccount.CreateCloudBlobClient();
var container = blobClient.GetContainerReference("something");
container.CreateIfNotExists();
TimeSpan tsSync = Test1(totalFiles,randomData,container);
TimeSpan tsAsync = Test2(totalFiles,container);
Console.WriteLine($"Sync: {tsSync}");
Console.WriteLine($"Async: {tsAsync}");
Console.ReadLine();
}
public static TimeSpan Test2(int total,byte[] data,CloudBlobContainer container)
{
Stopwatch sw = new Stopwatch();
sw.Start();
Task[] tasks = new Task[total];
for (int i = 0; i < total; i++)
{
CloudBlockBlob blob = container.GetBlockBlobReference(Guid.NewGuid().ToString());
tasks[i] = blob.UploadFromByteArrayAsync(data,data.Length);
}
Task.WaitAll(tasks);
sw.Stop();
return sw.Elapsed;
}
public static TimeSpan Test1(int total,CloudBlobContainer container)
{
Stopwatch sw = new Stopwatch();
sw.Start();
for (int i = 0; i < total; i++)
{
CloudBlockBlob blob = container.GetBlockBlobReference(Guid.NewGuid().ToString());
blob.UploadFromByteArray(data,data.Length);
}
sw.Stop();
return sw.Elapsed;
}
这个输出是：
10个文件
Sync: 00:00:08.7251781 Async: 00:00:04.7553491 DMLib: 00:00:05.1961654 Sync: 00:00:08.1169861 Async: 00:00:05.2384105 DMLib: 00:00:05.4955403 Sync: 00:00:07.6122464 Async: 00:00:05.0495365 DMLib: 00:00:06.4714047
50个文件
Sync: 00:00:39.1595797 Async: 00:00:22.5757347 DMLib: 00:00:25.2897623 Sync: 00:00:40.4932800 Async: 00:00:22.3296490 DMLib: 00:00:26.0631829 Sync: 00:00:39.2879245 Async: 00:00:24.0746697 DMLib: 00:00:26.9243116
我希望这是一个有效的问题.
谢谢
编辑：
我已经用“DMLib”测试更新了结果,以回应到目前为止给出的答案. DMLib是一个没有配置更改的测试(见上文)没有性能提升
我用ServicePointManager.DefaultConnectionLimit = Environment.ProcessorCount * 8运行了一些测试;正如文档所推荐的那样,这增加了相当多的上传速度,但它也提高了我的异步方法的上传速度.到目前为止,DMlib还没有给我任何值得的性能提升.我在下面的配置更改中添加了第二组测试结果.
我还设置了ServicePointManager.Expect100Continue = false;然而这对速度没有影响.
使用ServicePointManager.DefaultConnectionLimit = Environment.ProcessorCount * 8测试结果;
10个文件
Sync: 00:00:07.6199307 Async: 00:00:02.9615565 DMLib: 00:00:02.6629716 Sync: 00:00:08.7721797 Async: 00:00:02.8246599 DMLib: 00:00:02.7281091 Sync: 00:00:07.8437682 Async: 00:00:03.0171246 DMLib: 00:00:03.0190045
50个文件
Sync: 00:00:40.2395863 Async: 00:00:10.3157544 DMLib: 00:00:10.5107740 Sync: 00:00:40.2473358 Async: 00:00:10.8190161 DMLib: 00:00:10.2585441 Sync: 00:00:41.2646137 Async: 00:00:13.7188085 DMLib: 00:00:10.8686173
解决方法
请使用
Azure Storage Data Movement Library,这是
AzCopy的核心.这个库正是解决问题的工具. 原文链接：https://www.f2er.com/csharp/244957.html
