Biggest speedup I've found yet is the backup process (PG_DUMP --> GZIP).
100% faster in 64-bit mode. This drastic speed might be more the result
of 64-bit GZIP though as I've seen benchmarks in the past showing
encryption/compression running 2 or 3 times faster in 64-bit mode versus
32-bit.
William Yu wrote:
> I just finished upgrading the OS on our Opteron 148 from Redhat9 to
> Fedora FC2 X86_64 with full recompiles of Postgres/Apache/Perl/Samba/etc.
>
> The verdict: a definite performance improvement. I tested just a few CPU
> intensive queries and many of them are a good 30%-50% faster.
> Transactional/batch jobs involving client machines (i.e. include fixed
> client/networking/odbc overhead) seem to be about 10%-20% faster
> although I will need run more data through the system to get a better
> feel of the numbers.