Thanks for the response! I know I have to benchmark them to get a real answer. I am just looking to hear someone say "We benchmarked Linux vs. Windows with similar configuration and hardware and experienced a 25% performance boost in Linux." or "We benchmarked them and found no significant difference." I realize the situation varies based on usage patterns, but I'm just looking for some general info based on anyone else's experiences. My usage pattern is a single application that hits the database. The application uses a connection pool, so opening lots of connections is not a huge issue. However - it does have very large tables and regularly queries and inserts into these tables. I insert several million rows into 3 tables every day - and also delete about the same amount. On Thu, 04 Jan 2007 00:18:23 +0100, "Magnus Hagander" <magnus@xxxxxxxxxxxx> said: > Jeremy Haile wrote: > > I am sure that this has been discussed before, but I can't seem to find > > any recent posts. (I am running PostgreSQL 8.2) > > > > I have always ran PostgreSQL on Linux in the past, but the company I am > > currently working for uses Windows on all of their servers. I don't > > have the luxury right now of running my own benchmarks on the two OSes, > > but wanted to know if anyone else has done a performance comparison. Is > > there any significant differences? > > That depends on your usage pattern. There are certainly cases where the > Win32 version will be significantly slower. > For example, if you open a lot of new connections, that is a lot more > expensive on Windows since each connection needs to execute a new > backend due to the lack of fork(). > > I don't think you'll find any case where the Windows version is faster > than Linux ;-) But to get a good answer on if the difference is > significant enough to matter, you really need to run some kind of simple > benchmark on *your* workload. > > //Magnus