Placement of the cache definitely matters, even more so if you can take advantage of the more specific data freshness requirements.
Disclaimer: I work in Google. But I also worked a bit on effects of cache placement in my PhD.
Disclaimer: I work in Google. But I also worked a bit on effects of cache placement in my PhD.
Then, I might be perceived as biased due to that employment. I might even be actually biased. Better disclose that up front.