Greg Spiegelberg kirjutas E, 12.01.2004 kell 19:03: > Hannu Krosing wrote: > > Spiegelberg, Greg kirjutas P, 11.01.2004 kell 18:21: > > > >>It would seem we're experiencing somthing similiar with our scratch > >>volume (JFS mounted with noatime). > > > > > > Which files/directories do you keep on "scratch" volume ? > > > > All postgres files or just some (WAL, tmp) ? > > No Postgres files are kept in scratch only the files being loaded > into the database via COPY or lo_import.
then the speedup does not make any sense ! Is reading from jfs filesystem also 5 times faster than reading from ext3 ? The only explanation I can give to filling database from jfs volume to be so much faster could be some strange filesystem cache interactions. ---------------- Hannu ---------------------------(end of broadcast)--------------------------- TIP 1: subscribe and unsubscribe commands go to [EMAIL PROTECTED]