As anyone done benchmarking tests with postgres running on solaris and linux (redhat) assuming both environment has similar hardware, memory, processing speed etc. By reading few posts here, i can see linux would outperform solaris cause linux being very good at kernel caching than solaris which is being the key performance booster for postgres. what is the preferred OS for postgres deployment if given an option between linux and solaris. As well as filesystem to be used (xfs, ufs, ext3...). Any pointer to source of information is appreciated.
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