Re: [PERFORM] What`s wrong with JFS configuration?

2007-04-27 Thread Jim Nasby
Adding -performance back in so others can learn. On Apr 26, 2007, at 9:40 AM, Paweł Gruszczyński wrote: Jim Nasby napisał(a): On Apr 25, 2007, at 8:51 AM, Paweł Gruszczyński wrote: where u6 stores Fedora Core 6 operating system, and u0 stores 3 partitions with ext2, ext3 and jfs filesystem.

Re: [PERFORM] What`s wrong with JFS configuration?

2007-04-26 Thread Jim Nasby
On Apr 25, 2007, at 8:51 AM, Paweł Gruszczyński wrote: where u6 stores Fedora Core 6 operating system, and u0 stores 3 partitions with ext2, ext3 and jfs filesystem. Keep in mind that drives have a faster data transfer rate at the outer-edge than they do at the inner edge, so if you've got

Re: [PERFORM] What`s wrong with JFS configuration?

2007-04-26 Thread Luke Lonergan
[mailto:[EMAIL PROTECTED] Sent: Thursday, April 26, 2007 03:53 AM Eastern Standard Time To: Pawel Gruszczynski Cc: pgsql-performance@postgresql.org Subject:Re: [PERFORM] What`s wrong with JFS configuration? On Apr 25, 2007, at 8:51 AM, Pawel Gruszczynski wrote: where u6 stores

Re: [PERFORM] What`s wrong with JFS configuration?

2007-04-26 Thread Cosimo Streppone
Jim Nasby wrote: On Apr 25, 2007, at 8:51 AM, Paweł Gruszczyński wrote: where u6 stores Fedora Core 6 operating system, and u0 stores 3 partitions with ext2, ext3 and jfs filesystem. Keep in mind that drives have a faster data transfer rate at the outer-edge than they do at the inner edge

Re: [PERFORM] What`s wrong with JFS configuration?

2007-04-25 Thread Heikki Linnakangas
Paweł Gruszczyński wrote: To test I use pgBench with default database schema, run for 25, 50, 75 users at one time. Every test I run 5 time to take average. Unfortunetly my result shows that ext is fastest, ext3 and jfs are very simillar. I can understand that ext2 without jurnaling is faster

Re: [PERFORM] What`s wrong with JFS configuration?

2007-04-25 Thread Dave Cramer
On 25-Apr-07, at 4:54 AM, Heikki Linnakangas wrote: Paweł Gruszczyński wrote: To test I use pgBench with default database schema, run for 25, 50, 75 users at one time. Every test I run 5 time to take average. Unfortunetly my result shows that ext is fastest, ext3 and jfs are very simillar.

Re: [PERFORM] What`s wrong with JFS configuration?

2007-04-25 Thread Paweł Gruszczyński
Alexander Staubo napisał(a): On 4/25/07, Paweł Gruszczyński [EMAIL PROTECTED] wrote: I have strange situation. I`m testing performance of PostgreSQL database at different filesystems (ext2,ex3,jfs) and I cant say that JFS is as much faster as it is said. I don't know about 40-60% faster, but

Re: [PERFORM] What`s wrong with JFS configuration?

2007-04-25 Thread Chris Browne
[EMAIL PROTECTED] (Paweł Gruszczyński) writes: To test I use pgBench with default database schema, run for 25, 50, 75 users at one time. Every test I run 5 time to take average. Unfortunetly my result shows that ext is fastest, ext3 and jfs are very simillar. I can understand that ext2 without

Re: [PERFORM] What`s wrong with JFS configuration?

2007-04-25 Thread Greg Smith
On Wed, 25 Apr 2007, Pawe?~B Gruszczy?~Dski wrote: I was just reading some informations on the web (for example: http://www.nabble.com/a-comparison-of-ext3,-jfs,-and-xfs-on-hardware-raid-t144738.html). You were doing your tests with a database scale of 50. As Heikki already pointed out,