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you’re free to check the latency to GCPover the Internetby using online latency tools such asCloud Harmony.
However, I couldnt find any resource which gives an indication of latency between Google Cloud regions.
So I thought to do a little test myself and here is the result.
Google Cloud data centersare available in the following twenty-four regions.
I provisioned anf1-microinstance in all the regions with Ubuntu 20 LTS.
I didnt install any additional software and did a ping to another region server 10 times over private IP.
And here you go with the average latency results in milliseconds.
Google Cloud Latency Between Region
View thelatency data in full-page
Interesting…
Above should give you an idea of where to host your services internally forbetter results.