Re: 8.0 beta1 and XP SP2

[Justin Wyer <justin(at)isogo(dot)co(dot)za>]

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