Dusan Misic <promi...@gmail.com> wrote: > My question is simple. Does PostgreSQL perform better on Linux > than on Windows and how much is it faster in your tests? We tested this quite a while back (on 8.0 and 8.1) with identical hardware and identical databases running in matching versions of PostgreSQL. On both saturation stress tests and load balancing a real live web site between PostgreSQL on Windows and Linux, Linux came out about 40% faster. Who knows what the number would be today, with current PostgreSQL, Linux, and Windows? Anyway, perhaps it's a useful data point for you. BTW, I wrote a tiny Java program to push data in both directions as fast a possible over our network to check for networking problems (it really showed up half duplex legs pretty dramatically), and when everything was on one switch it ran 30% faster if both ends were Linux than when both ends were Windows. I found it interesting that with one end on Linux and one on Windows, it split the difference. So this is not unique to PostgreSQL. -Kevin
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