Re: Poor Performance E4500

I'm not getting why such a powerfull 8 processor SUN server have such a low performances

In article <8uhcbr$aag$1_at_nnrp1.deja.com>,   bmw95_at_my-deja.com wrote:
> Thank you for your replay
> Well there is no error or any kind of alert
> Our test server on Linux box with single PIII do way faster it
 process.
> We need to get to the point where we can write to the database at 200-
> 500 simultaneous requests.
> We do not have RAID5
> Drives are striped and mirrored.
> We believe by mirroring drives oracle is unable perform.
> We have terminated all third party custom applications and shoot
> records directly to oracle so we are positive this is not our code
 that
> slows down.
>
> In article <8uhaon$92p$1_at_nnrp1.deja.com>,
> jumaga_at_my-deja.com wrote:
> > How slow is it? Is it not responding at all or just not performing
 up
> > to snuff? If it is really slow it sounds to me like you have a
> > fundamental configuration error, and you'd need to provide more info
> > for troubleshooting. Are any errors in the alert log? Is the CPU
> > pinned? Is swapping occuring? Is the OS logging any errors?
> >
> > If it just isn't performing up to snuff you should know that in
 general
> > RAID 5 should NOT be used on Oracle for write intensive operations.
> > This is due to the additional computation needed to calculate the
> > parity bit. Also if redo/rollback are RAID 5 you will have any even
> > bigger performance hit.
> >
> > In article <8uh9ud$85t$1_at_nnrp1.deja.com>,
> > bmw95_at_my-deja.com wrote:
> > > Hello
> > > We have install Solaris 8 on E4500 and at the
> > > same time this server connected to the disk
> > > storage A5200.
> > > Disk Storage is connected by fiber to the server
> > > with 7 9gb 10000 rpm disks
> > >
> > > Now, after we install oracle we have found poor,
> > > slow, terrible performances. All we try to do is
> > > write to the table 100 records at the same time
> > > in 15 fields table. Lets say information that we
> > > was trying to insert was client contact info
> > > (first name, last name so on)
> > >
> > > Disk array layout is 2 drives are striped and
> > > then mirrored to another 2-stripped drives.
> > > And we have mount this space to ..../data
> > >
> > > Anoter drives are mirrored and mount to
> > > the .../index for indexes
> > >
> > > Our storage capable of RAID5 Maybe we are doing
> > > something wrong here. We need an advice.
> > > Thank you
> > > Vlad Kogan
> > >
> > > Sent via Deja.com http://www.deja.com/
> > > Before you buy.
> > >
> >
> > Sent via Deja.com http://www.deja.com/
> > Before you buy.
> >
>
> Sent via Deja.com http://www.deja.com/
> Before you buy.
>

Sent via Deja.com http://www.deja.com/
Before you buy. Received on Fri Nov 10 2000 - 12:17:45 CST