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Measuring throughput using TCP seems an easy task: just send data over a TCP session and the protocol will automatically seek the maximum network capacity for you. If you're in luck this will give you satisfying results, but what if it doesn't? Exactly which parameters should you play with to optimize your performance? Let's find out!
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Rigorously testing a network device or distributed service requires complex, realistic network test environments. Linux Traffic Control (tc) with Network Emulation (netem) provides the building blocks to create an impairment node that simulates such networks. This second post of a three-part series shows which impairments are available and how they can be configured.
Rigorously testing a network device or distributed service requires complex, realistic network test environments. Linux Traffic Control (tc) with Network Emulation (netem) provides the building blocks to create an impairment node that simulates such networks. This first post of a three-part series, introduces both.
When talking about throughput, all sorts of numbers get tossed around. However, it is crucial to clarify what data you are talking about when demonstrating and comparing values. What’s included, and what’s not?