A takeaway could be that you can dedicate a postgres instance for caching and have acceptable results. But who does that? Even for a relatively simple intranet app, your #1 cost when deploying in Google Cloud would probably be running Postgres. Redis OTOH is dirt cheap.
Maybe I'm reading the article wrong, but it is representative of any application that uses a PosgreSQL server for data, correct?
In what way is that not a real-life scenario? I've deployed Single monolith + PostgreSQL to about 8 different clients in the last 2.5 years. It's my largest source of income.
If your don't mind overprovisioning your postgres, yes I guess the presented benchmarks are kind of representative. But they also don't add anything that you didn't know without reading the article.
Why would I mind it? I'm not using overpriced hosted PostgreSQL, after all.
And... do you do that with the default configuration?
Yes. Internal apps/LoB apps for a large company might have, at most 5k users. PostgreSQL seems to manage it fine, none of my metrics are showing high latencies even when all employees log on in the morning during the same 30m period.
Kudos to you sir. Sincerely, I'm not hating, I'm actually jealous of the environment being that mellow.