bandwidth
What % of traffic is network overhead on top of HTTP/S requests
You have zero knowledge about the layers below HTTP. You can’t even assume the HTTP request will be delivered over TCP/IP. Even if it is, you have zero knowledge about the overhead added by the network layer. Or what the reliability of the route will be and what overhead will be due to dropped/resent packets. … Read more
Predict how much data will be pushed in a git push
Actually, I think I like my comment enough to post it as an answer! When you push, git creates a pack of all the necessary objects and uploads that to the remote. This means we’re looking for a way to predict that pack size. Since the packs are compressed, that makes it very difficult to … Read more
Detecting network connection speed and bandwidth usage in C#
Try using the System.Net.NetworkInformation classes. In particular, System.Net.NetworkInformation.IPv4InterfaceStatistics ought to have some information along the lines of what you’re looking for. Specifically, you can check the bytesReceived property, wait a given interval, and then check the bytesReceived property again to get an idea of how many bytes/second your connection is processing. To get a good … Read more
What is the difference between latency, bandwidth and throughput?
Water Analogy: Latency is the amount of time it takes to travel through the tube. Bandwidth is how wide the tube is. The rate of water flow is the Throughput Vehicle Analogy: Vehicle travel time from source to destination is latency. Types of Roadways are bandwidth. Number of Vehicles traveling is throughput.
How can I detect and survive being “Slashdotted”?
install munin to monitor load/memory consumption etc and notify on overloads. install monit to restart apache2 if it crashes install nginx as apache2 frontend, it will massively decrease memory requirements under heavy load
How can I get the current network interface throughput statistics on Linux/UNIX? [closed]
iftop does for network usage what top(1) does for CPU usage — http://www.ex-parrot.com/~pdw/iftop/ I don’t know how “standard” iftop is, but I was able to install it with yum install iftop on Fedora.
EC2 instance types’s exact network performance?
Bandwidth is tiered by instance size, here’s a comprehensive answer: For t2/m3/c3/c4/r3/i2/d2 instances: t2.nano = ??? (Based on the scaling factors, I’d expect 20-30 MBit/s) t2.micro = ~70 MBit/s (qiita says 63 MBit/s) – t1.micro gets about ~100 Mbit/s t2.small = ~125 MBit/s (t2, qiita says 127 MBit/s, cloudharmony says 125 Mbit/s with spikes to … Read more
How do I simulate a low bandwidth, high latency environment? [closed]
For macOS, there is the Network Link Conditioner that simulates configurable bandwidth, latency, and packet loss. It is contained in the Additional Tools for Xcode package.