Windows 7 simulate high latency

Created Sep 17, Code Revisions 5 Stars Forks Embed What would you like to do? Embed Embed this gist in your website. Share Copy sharable link for this gist. Learn more about clone URLs. Download ZIP. Simulates a low bandwidth, high-latency network connection.

Credits Richard Bullington-McGuire richard moduscreate. This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. It only takes a minute to sign up. Connect and share knowledge within a single location that is structured and easy to search. I need to simulate network latency to a program running on the local computer, connecting to a local service.

Thus far I have tried dummynet a windows build of ipfw which I got working after some trial and error. While it generally works, I can't seem to get it to filter localhost traffic. Even after adding a rule from any to any which affects external traffic, this makes no difference for local connections. I would appreciate if anyone knows how to simulate local latency using dummynet or a different tool. On windows 7 you should take at Clumsy :. You just select the stream, flip to the AutoResponder tab, select "Add Rule", then right click on the rule and select "Set Latency".

Sign up to join this community. The best answers are voted up and rise to the top. On the right, you should see a label called No Throttling. Pick one of the options and then reload the page you are on or type in another URL in the address bar.

Just make sure you are in the same tab where the developer tools are being displayed. The throttling only works for the tab you have it enabled for. If you want to use your own specific values, you can click the Add button under Custom.

Click on the Add Custom Profile button to add a new profile. When using GPRS, it took www. Whether you want to track down weird bugs related to broken network, or evaluate your application on poor connections, clumsy will come in handy:.

Here's a demo of clumsy working on a netcat listening for localhost udp packets, illustrated as animated gif. If you figured out what's going on then go to Download page and give it a try!