Hi postgresql hackers -

I would like to find some analysis (published work, blog posts) on the 
overheads affiliated with the guarantees provided by MVCC isolation. More 
specifically, assuming the current workload is CPU bound (as opposed to IO) 
what is the CPU overhead of generating the WAL, the overhead of version 
checking and version creation, and of garbage collecting old and unnecessary 
versions? For what it’s worth, I am working on a research project where it is 
envisioned that some of this work can be offloaded.

Thank you,
Pete Stevenson

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