如果你在linux上，我发现流量控制程序对这类事情有很大的帮助。

Take a look at the NE-ONE Network Emulator which allows you to configure bandwidth, latency, packet loss, packet reordering, packet duplication, packet fragmentation, network congestion and many more impairments so that you can create real-world network conditions in the lab. Different impairments can be configured for the up and downlink so you could have a really good uplink but a really bad downlink experience, great for seeing how the app handles TCP queuing because the acks don't come back in a timely manner and the overall latency therefore increases!

这里有一个专门针对游戏开发者的概述视频http://www.youtube.com/watch?v=DwtqlE7LcrQ，但它说明了它的内容。NE-ONE是使用web浏览器配置的，所以它真的很容易安装和配置-你不需要是一个网络专家:-)

有一个硬件版本- http://www.itrinegy.com/index.php/products/network-emulators/ne-one -或者你可以下载在VMware ESXi Server下运行的虚拟设备(软件)版本。虚拟设备可以从VMware的Solution Exchange - solutionexchange.vmware.com/store/products/ne-one-flex-network-emulator下载

http://www.shunra.com上有一个产品叫做VE Desktop，可以用来模拟不同的网络条件。它允许你用一个简单的UI调整延迟、带宽和丢包。唯一需要注意的是，它不是免费的。希望这能有所帮助。

查尔斯

我遇到了Charles web调试代理应用程序，并在模拟网络延迟方面取得了巨大的成功。它可以在Windows、Mac和Linux上运行。

Bandwidth throttle / Bandwidth simulator Charles can be used to adjust the bandwidth and latency of your Internet connection. This enables you to simulate modem conditions using your high-speed connection. The bandwidth may be throttled to any arbitrary bytes per second. This enables any connection speed to be simulated. The latency may also be set to any arbitrary number of milliseconds. The latency delay simulates the latency experienced on slower connections, that is the delay between making a request and the request being received at the other end.

虚拟网

您也可以使用vmware来运行BSD或Linux，并尝试本文(DummyNet)或本文。

您可以试试这个:CovenantSQL/GNTE 就像这样写YAML:

group:
  - 
    name: china
    nodes:
      - 
        ip: 10.250.1.2
        cmd: "cd /scripts && ./YourBin args"
      - 
        ip: 10.250.1.3
        cmd: "cd /scripts && ./YourBin args"
    delay: "100ms 10ms 30%"
    loss: "1% 10%"
  - 
    name: us
    nodes:
      - 
        ip: 10.250.2.2
        cmd: "cd /scripts && ./YourBin args"
      - 
        ip: 10.250.2.3
        cmd: "cd /scripts && ./YourBin args"
    delay: "1000ms 10ms 30%"
    loss: "1% 10%"

network:
  -
    groups:
      - china
      - us
    delay: "200ms 10ms 1%"
    corrupt: "0.2%"
    rate: "10mbit"

运行。/generate scripts/your.yaml

我发现这个简洁的Windows程序叫笨笨。它还处于alpha阶段，但对我来说工作得很好，而且它是开源的。

编辑:其他人已经注意到你不能用笨拙来限制带宽，这是真的。您只能添加延迟和其他一些与网络相关的错误。 这将取消这个答案作为问题的有效答案的资格，但是，由于我想要模拟一个糟糕的网络时，它很有用，所以我将把它留在这里，只要它有> 0票或类似的投票。