On 4 November 2010 15:00, Michael Gould <mgould@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx> wrote: > I know that this is probably a "religion" issue but we are looking to move > Postgres to a Linux server. We currently have a Windows 2008 R2 active > directory and all of the other servers are virtualized via VMWare ESXi. One > of the reasons is that we want to use a 64 bit Postgres server and the UUID > processing contrib module does not provide a 64 bit version for Windows. I > would also assume that the database when properly tuned will probably run > faster in a *inx environment. Let's not make the mistake of assuming that Windows and Linux are more or less comparable as Postgres platforms - they aren't. Most large installations are *nix based, and many tuning guides assume that you are using some *nix flavour, or mention windows only very briefly. I'm not sure of the details, but the windows System V IPC compatibility layer (or whatever it's called) that we ship + windows, simply don't work as well as native System V IPC running on the same hardware. This is why users are encouraged to try lower shared_buffers settings on windows - better results are attained on that platform by using proportionally more file system/OS cache. However, it is worth acknowledging that there has been some excellent work towards getting Postgres to work well on Windows, which it now does. I can personally attest to that. -- Regards, Peter Geoghegan -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
