Re: 8.0 beta1 and XP SP2

Justin Wyer <[email protected]>
Newsgroups gmane.comp.db.postgresql.devel.win32
Message-ID <[email protected]>
Oleg Letsinsky wrote:

>Hi,
>
>I'm wondering if anyone has tried running PgSQL on XP SP2?
>
>I have a problem with it - quite a big one. I have a perl DBI script
>which is a migration tool from old MySQL database format to a new PgSQL
>database. So here is a quick summary of the situation.
>
>MySQL (win32) - perl - PgSQL (Linux server) Runs fine, full speed, the
>script finishes its work in 20 minutes.
>
>Next, I move PgSQL to the windows side.
>
>MySQL (win32) - perl - PgSQL (win32, XP SP1) Runs fine, just a bit slower
>(like 25 minutes)
>
>In  both previous cases there were 100% CPU load, HD activity, etc. - two
>databases raping poor windows XP workstation.
>
>Next, after SP2 installation - that's here the fun comes. The process can
>take  hours  to  complete.  Actually,  I  never  had a patience to see it
>finished  -  last  time  I aborted the process after 2 hours and the damn
>thing  just finished about 50% of its job. I switched PgSQL back to Linux
>without  changing  anything else - no performance problems. I uninstalled
>SP2  and  checked  again - all is ok, all goes full speed, 25 minutes for
>task  completion. Reinstalled SP2 - and the problem came back. So  for me
>it's quite obvious that SP2 has screwed up PgSQL  in  some  way.  I've
>tried several web forums, IRC - so far nobody seems  to  get  into  the
>same situation since I'm likely to be the only PgSQL user stupid enough
>to try SP2 :)
>  
>
What is the CPU load under SP2?

>Now some details on what script does. It's, like I said, a migration
>script - it takes data from one database, changes it slightly and puts it
>to another one, using simple inserts. Nothing special. Although
>pg_restore seems to work just fine even under SP2, no performance
>problems.
>  
>
If pg_restore works prehaps it is not a PostgreSQL problem....

>There's more. I've tried PowerGres database as well. It experiences the
>same performance hit, no difference at all.
>
>Some details on the system - WinXP Pro, P4 2.4Ghz, 1GB RAM, 200GB SATA
>Seagate drive. I've disabled that firewall thingy and data execution
>prevention - again, nothing has changed. I'm out of ideas...
>  
>
Try mod your script to dump back to the mysql database. Check if you get
weird performance issues doing that.
I think assuming it is PostgreSQL at this point is jumping the gun.
Maybe active states perl doesn't run so well on SP2, or it could even be
mysql.

>Thanks for any input
>  
>
Pleasure

Regards
Justin


---------------------------(end of broadcast)---------------------------
TIP 9: the planner will ignore your desire to choose an index scan if your
      joining column's datatypes do not match
lmpx.com only provides a reader for public news (NNTP) servers. It is not affiliated with the servers or forums shown here and is not responsible for the content of articles, which is written by their respective authors.