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AWS data center latencies, visualized

benjdd.com

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Re: AWS data center latencies, visualized

#15
This jives with measurements I've done before. I ended up running a ping setup for a few months from every region to every other region to get these timings. I was using it to calculate what our GQL latencies would look like if the backing servers were in another region or in the same region as a way to start regionalization work. Sadly we had to depend on those latencies so much that it was deemed a non-starter of an approach. Even us-west-2 (home) to us-east-2 took us from p99 300ms to p99 2.4 seconds. That sweet sweet latency reduction.

Re: AWS data center latencies, visualized

#16

All of the datacenters are colour-coded as blue, which is not on the legend. What does this mean?

click on one

Ah, this was what I tried first, and it didn't do anything, but now it does seem to be doing something. That makes sense now, thanks.

Re: AWS data center latencies, visualized

#17

All of the datacenters are colour-coded as blue, which is not on the legend. What does this mean?

Since all of them are same color its not really color coding and hence not on the legend, its just OPs choice for color of points

No lines were working for me, so the only feature was the blue colour of the dots, hence thinking they must be colour coded in line with the legend.

Re: AWS data center latencies, visualized

#19

Maybe a question with an obvious answer, but why are there not yet more data centers in Africa?

I believe it's a combination of a lack of customers and lack of infrastructure. It's a big continent to cover with the necessary fibre capacity, and the market is much smaller for nearby services.

Also what you don't see in things like this, or even a list of datacenter locations, is the relative sizes of the datacenters. After US east/west coasts and Europe, datacenter capacity rapidly tails off. Parts of Asia have plenty but not on the same scale I believe (although I don't know about the Chinese market). The difference in size can be quite a few orders of magnitude between different regions.

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