I was talking to a Linux user yesterday, and he said that performance
using the xfs file system is pretty bad. He believes it has to do with
the fact that fsync() on log-based file systems requires more writes.
With a standard BSD/ext2 file system, WAL writes can stay on the same
cylinder to perform fsync. Is that true of log-based file systems?
I know xfs and reiser are both log based. Do we need to be concerned
about PostgreSQL performance on these file systems? I use BSD FFS with
soft updates here, so it doesn't affect me.
-- Bruce Momjian | http://candle.pha.pa.us pgman@candle.pha.pa.us | (610)
853-3000+ If your life is a hard drive, | 830 Blythe Avenue + Christ can be your backup. | Drexel Hill,
Pennsylvania19026
