Andrew Dunstan wrote: > > > Bruce Momjian wrote: > > >I have been poking around with our fsync default options to see if I can > >improve them. One issue is that we never default to O_SYNC, but default > >to O_DSYNC if it exists, which seems strange. > > > >What I did was to beef up my test program and get it into CVS for folks > >to run. What I found was that different operating systems have > >different optimal defaults. On BSD/OS and FreeBSD, fdatasync/fsync was > >better, but on Linux, O_DSYNC/O_SYNC was faster. > > > >[snip] > > > >Linux 2.4.9: > > > > > > This is a pretty old kernel (I am writing from a machine running 2.4.22) > > Maybe before we do this for Linux testing on a more modern kernel might > be wise.
Sure, I am sure someone will post results. -- Bruce Momjian | http://candle.pha.pa.us [EMAIL PROTECTED] | (610) 359-1001 + If your life is a hard drive, | 13 Roberts Road + Christ can be your backup. | Newtown Square, Pennsylvania 19073 ---------------------------(end of broadcast)--------------------------- TIP 8: explain analyze is your friend
