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If anything this is a cautionary tale against running a database without reading the docs for how it should be configured. The PostgreSQL defaults are extremel

• justinclift 3y ago
  Heh Heh Heh. On the same kind of note, about 20 years ago the defaults for PostgreSQL were to use something like 8MB (in total) of shared buffer memory, so it would work out of the box on very low memory systems. What that directly caused was a reputation for being slow and pegging the cpu (as it shuffled everything through that buffer), because people would benchmark this default config vs other databases that had better defaults. Once we fixed that "tiny shared buffers by default" problem, then low-and-behold PostgreSQL was reported to have decent performance. ;)