[PERFORM] Very important choice

2005-02-01 Thread Bruno Almeida do Lago








Sorry, I sent this mail message with wrong account and it
has been delayed by the mail system, so I’m resending it. 

 

Hello my friends,

 

I'd like to know (based on your experience and technical
details) which OS is recommended for running PostgreSQL keeping in mind 3
indicators:

 

1 - Performance (SO, Network and IO)

2 - SO Stability

3 - File System Integrity

 

Comparisons between Slackware, Gentoo and FreeBSD are
welcome.

 

Which file system has the best performance and integrity:
XFS (Linux) or UFS (FreeBSD)? 

*I've read that UFS is not a journaling FS. Is this right?
How much this difference affects performance and integrity?

 

I don't have experience with FreeBSD so I'd like to know if
it is possible to run XFS on FreeBSD 5.3.

 

 

Thank you,

Bruno Almeida do Lago

 








Re: [PERFORM] Very important choice

2005-02-01 Thread Richard Huxton
Lago, Bruno Almeida do wrote:
Hello my friends,
I'd like to know (based on your experience and technical details) which OS
is recommended for running PostgreSQL keeping in mind 3 indicators:
1 - Performance (SO, Network and IO)
2 - SO Stability
3 - File System Integrity
The short answer is almost certainly whichever OS you are most familiar 
with. If you have a problem, you don't want to be learning new details 
about your OS while fixing it. That rules out FreeBSD for now.

What hardware you want to use will affect performance and choice of OS. 
You'll need to decide what hardware you're looking to use.

As far as file-systems are concerned, ext3 seems to be the slowest, and 
the general feeling seems to be that XFS is perhaps the fastest. In 
terms of reliability, avoid cutting-edge releases of any file-system - 
let others test them for you. One thing to consider is how long it takes 
to recover from a crash - you can run PostgreSQL on ext2, but checking a 
large disk can take hours after a crash. That's the real benefit of 
journalling for PG - speed of recovery.

--
  Richard Huxton
  Archonet Ltd
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TIP 7: don't forget to increase your free space map settings


[PERFORM] Very important choice

2005-01-31 Thread Lago, Bruno Almeida do








Hello my friends,

 

I'd like to know (based on your experience and
technical details) which OS is recommended for running PostgreSQL keeping in
mind 3 indicators:

 

1 - Performance (SO, Network and IO)

2 - SO Stability

3 - File System Integrity

 

Comparisons between Slackware, Gentoo and FreeBSD are
welcome.

 

Which file system has the best performance and integrity:
XFS (Linux) or UFS (FreeBSD)? 

*I've read that UFS is not a journaling FS. Is this
right? How much this difference affects performance and integrity?

 

I don't have experience with FreeBSD so I'd like
to know if it is possible to run XFS on FreeBSD 5.3.

 

 

Thank you,

Bruno Almeida do Lago