How to simulate a slow network
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I think it is time to reveal a nifty little tool that I like to simulate a slow network connection, even without a network. It is called "tc" (think "traffic control") and is present on every modern Linux system. It is part of the "iproute" or "iproute2" package. tc lets you simulate (amongst other things) latency. We all know how network latency of even the slightest degree kills off every amount of remote X11 usability. Even if you throw multi-Megabits of bandwidth towards it, that will never compensate -- because it is just the wrong cure for an illness that consists of many thousand roundtrips undertaken by minuscule packets.
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