Re: [PERFORM] Perfomance Tuning

2003-08-08 Thread Shridhar Daithankar
On 8 Aug 2003 at 12:28, mixo wrote: > I have just installed redhat linux 9 which ships with Pg > 7.3.2. Pg has to be setup so that data inserts (blobs) should > be able to handle at least 8M at a time. The machine has > two P III 933MHz CPU's, 1.128G RAM (512M*2 + 128M), and > a 36 Gig hd with 1 G

Re: [PERFORM] Perfomance Tuning

2003-08-08 Thread Andrew Sullivan
On Fri, Aug 08, 2003 at 03:34:44PM -0400, Bruce Momjian wrote: > > It is true that ext2 isn't good because the file system may not recover, > but BSD UFS isn't a journalled file system, but does guarantee file > system recovery after a crash --- it is especially good using soft > updates. Sorry.

Re: [PERFORM] Perfomance Tuning

2003-08-08 Thread Rod Taylor
> > Agreed.. WAL cannot recover something when WAL no longer exists due to a > > filesystem corruption. > > It is true that ext2 isn't good because the file system may not recover, > but BSD UFS isn't a journalled file system, but does guarantee file > system recovery after a crash --- it is espec

Re: [PERFORM] PostgreSQL performance problem -> tuning

2003-08-08 Thread Yaroslav Mazurak
scott.marlowe wrote: On Thu, 7 Aug 2003, Yaroslav Mazurak wrote: Shridhar Daithankar wrote: That's a nice theory, but it doesn't work out that way. About every two months someone shows up wanting postgresql to use all the memory in their box for caching and we wind up explaining that the kern

Re: [PERFORM] Perfomance Tuning

2003-08-08 Thread Rod Taylor
On Fri, 2003-08-08 at 14:53, Andrew Sullivan wrote: > On Fri, Aug 08, 2003 at 09:40:20AM -0700, Jonathan Gardner wrote: > > > > Redhat puts ext3 on by default. Consider switching to a non-journaling FS > > (ext2?) with the partition that holds your data and WAL. > > I would give you exactly the

Re: [PERFORM] PostgreSQL performance problem -> tuning

2003-08-08 Thread Yaroslav Mazurak
Hi All! Shridhar Daithankar wrote: On 7 Aug 2003 at 10:05, Yaroslav Mazurak wrote: It needs to reflect how much cache the system is using - try the "free" command to see figures. I'm not found "free" utility on FreeBSD 4.7. :( Grr.. I don't like freeBSD for it's top output.Active/inactive/

Re: [SQL] [PERFORM] EXTERNAL storage and substring on long strings

2003-08-08 Thread Scott Cain
Oh, and I forgot to mention: it's highly compressed (bzip2 -9) and is 109M. Scott On Tue, 2003-08-05 at 11:01, Scott Cain wrote: > Joe, > > Good idea, since I may not get around to profiling it this week. I > created a dump of the data set I was working with. It is available at > http://www.gm