db_shared_buffers should be no more than 25% of your system memory, which would be 1024MB, assuming that nothing else is running on that box.
unicorn_workers is two per core, so 4 is fine.
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db_shared_buffers should be no more than 25% of your system memory, which would be 1024MB, assuming that nothing else is running on that box.
unicorn_workers is two per core, so 4 is fine.