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Misc.Mar 28, 2019
Ciscoyya

System design - capacity estimates

For system design interview: how can one exactly tell how many servers needed (say based on estimated bandwidtg, memory, QPS and storage estimates of an application)?

Apple st4rbucks Mar 28, 2019

How would you determine that if you weren’t in an interview setting for the same question?

Facebook ¿ Mar 28, 2019

Exactly. This is a test of your ability to make reasonable assumptions based on the facts you have, state those assumptions, and then derive a sane estimate. I never have a fixed number in mind during interviews, but if you tell me you can implement twitter on servers on 100 servers we might have a problem. This is very easy: - what’s the source of load on the system (e.g. rps) - what resources does your system require for each unit (how much does a request cost) - .... - profit