Postgres performance on Linux and Windows

From: Dusan Misic <promisic(at)gmail(dot)com>
To: pgsql-performance(at)postgresql(dot)org
Subject: Postgres performance on Linux and Windows
Date: 2011-08-03 16:37:12
Message-ID: CAGdZ+NC=kZ1TqPp_RPxLkYrP3eKqC+8Wf17S2P5QPn_5_WiLPg@mail.gmail.com
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I had done some testing for my application (WIP) and I had executed same SQL
script and queries on real physical 64-bit Windows 7 and on virtualized
64-bit CentOS 6.

Both database servers are tuned with real having 8 GB RAM and 4 cores,
virtualized having 2 GB RAM and 2 virtual cores.

Virtualized server crushed real physical server in performance in both DDL
and DML scripts.

My question is simple. Does PostgreSQL perform better on Linux than on
Windows and how much is it faster in your tests?

Thank you for your time.

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