同时建立多个连接。从中断处继续。

所有连接均不空闲

GDM opens 8 connections by default, and you can set anything from 1 to 32 in Options → Connection. When a connection finishes its part, it takes over half of the largest part still left, so the work is shared out again and again until the file is done. A connection that falls far behind the others is dropped and opened again.

进度窗口会实时显示下载情况：一个显示整个文件进度的条形图，其中包含每个连接的起始位置和进度，以及一个显示每个连接当前正在做什么的表格。

实测数据，而非空泛宣传

On the same PC and the same test server, GDM fetched a 1 GiB file in 1.0 s against IDM 6.42's 5.5 s, and a 256 KiB file in 0.03 s against 3.1 s: the medians of alternating runs. The benchmark page has every run, the method and the raw data.

More connections help only where a server sends each one at a limited speed. Most servers allow a few connections per address, and GDM notices when one says no: it stops asking that server for more and lists what it learned under Exceptions in Options → Connection. You can set a number for a server yourself there too.

如果需要，可超过 32 个连接

在选项 → 连接中允许超过 32 个连接会将每个下载的限制提高到 128 个，服务器例外也适用。命令行中的-c接受 1 到 128。

防崩溃续传

GDM saves how far each part has got as it goes. A download picks up where it stopped after you pause it, after the connection drops, or after Windows or GDM itself crashes. A connection that fails is retried on its own, and the table shows Retrying with the reason.

Before it continues, GDM checks that the file on the server is still the same one, so a changed file never gets stitched onto an old half. When a server can't send a file in parts, the progress window says Resume capability: No before you rely on it.

直接写入磁盘

Each connection writes directly into the file's place on disk, in a part file next to the final one. There is no temporary folder and no joining step at the end: when the last part arrives, GDM checks the size and renames the file.

恢复中断的下载显示了当链接过期时该怎么做。