Re: A not so good comparison of MVCC implementations
Robert Haas <[email protected]> Fri, 26 Jan 2018 13:08:35 -0500
| Newsgroups | gmane.comp.db.postgresql.advocacy |
|---|---|
| Message-ID | <CA+TgmobFya3xbQnmHPP6sX=_v3Gy2RLVyTf+TG1psffPYkzQ1A@mail.gmail.com> |
On Fri, Jan 26, 2018 at 7:22 AM, Stephen Frost <[email protected]> wrote: > * Thomas Kellerer ([email protected]) wrote: >> https://dzone.com/articles/database-design-decisions-for-multi-version-concur >> >> That doesn't make Postgres look particular well > > While interesting, if I'm following the paper correctly, they didn't > actually test *Postgres*, they tested their own implementation of how PG > works using "Peloton". Yeah, that's really deceptive. > They also, apparently, discounted latency pretty > heavily given that their graph shows their "PG" implementation having > the lowest latency of all of the options. Also, they seem to be comparing against PostgreSQL with SSI running (transaction isolation level serializable) which is not actually the way that people typically configure PostgreSQL. The point of the article seems to be to say that NuoDB made some good design decisions, rather than to objective compare existing systems. -- Robert Haas EnterpriseDB: http://www.enterprisedb.com The Enterprise PostgreSQL Company