Re: [PERFORM] PostgreSQL Reliability when fsync = false on Linux-XFS

2003-09-04 Thread scott.marlowe
On Thu, 4 Sep 2003, Federico Sevilla III wrote: > (Please follow Mail-Followup-To, I'm not on the pgsql-performance > mailing list but am on the Linux-XFS mailing list. My apologies too for > the cross-post. I'm cc'ing the Linux-XFS mailing list in case people > there will be interested in this, t

Re: [PERFORM] PostgreSQL Reliability when fsync = false on Linux-XFS

2003-09-04 Thread Tom Lane
Sean Chittenden <[EMAIL PROTECTED]> writes: >> Just wonderin. What if you symlink WAL to a directory which is on >> mounted USB RAM drive? > USB 2.0 you mean? It supposedly runs at 1394 speeds, but USB 1.0/1.1 > runs at 1MB/s under ideal circumstances... that's slower than even old > IDE drives.

Re: [PERFORM] PostgreSQL Reliability when fsync = false on Linux-XFS

2003-09-04 Thread Sean Chittenden
> Just wonderin. What if you symlink WAL to a directory which is on > mounted USB RAM drive? USB 2.0 you mean? It supposedly runs at 1394 speeds, but USB 1.0/1.1 runs at 1MB/s under ideal circumstances... that's slower than even old IDE drives. > Will that increase any throughput? Probably not.

Re: [PERFORM] PostgreSQL Reliability when fsync = false on Linux-XFS

2003-09-04 Thread Shridhar Daithankar
On 3 Sep 2003 at 23:36, Rod Taylor wrote: > > - the way PostgreSQL expects data to be written to disk without the > >fsync calls for things not to get corrupted in the event of a crash, > >and > > If you want the filesystem to deal with this, I believe it is necessary > for it to write t

Re: [PERFORM] PostgreSQL Reliability when fsync = false on Linux-XFS

2003-09-03 Thread Rod Taylor
> - the way PostgreSQL expects data to be written to disk without the >fsync calls for things not to get corrupted in the event of a crash, >and If you want the filesystem to deal with this, I believe it is necessary for it to write the data out in the same order the write requests are su

[PERFORM] PostgreSQL Reliability when fsync = false on Linux-XFS

2003-09-03 Thread Federico Sevilla III
(Please follow Mail-Followup-To, I'm not on the pgsql-performance mailing list but am on the Linux-XFS mailing list. My apologies too for the cross-post. I'm cc'ing the Linux-XFS mailing list in case people there will be interested in this, too.) Hi, We have a server running PostgreSQL v7.3.3 on