RE: Websphere: a resource hog?

Contrary to Brad's results, I've been benchmarking WebSphere on a base model
270 (a 9406-270 2250 w/1GB RAM and 32GB disk) and it will run 100
simultaneous sessions generating 2KB of HTML each with a response time of
1.2 secs.  This comes out to about 5000 hits per minute, or 300,000 hits per
hour.

Of course, that's basically just measuring WebSphere's capability to
generate and output HTML.  Using the Java toolbox, a simple application
building an 8KB page from a disk file will run 5 sessions at once with a 1.3
seconds response time.  That's 230 hits per minute, or over 12,000 per hour.

And the CPU only hits 50% on that particular benchmark, probably because of
all the disk wait time.  I'm going to do some more benchmarks using data
queues and a batch RPG server.  I suspect that will have even more
impressive numbers.

If written correctly, WebSphere applications scream.  If written poorly,
they dog.

Also in stark contrast to Brad's situation, on my little model 270,
adminclient takes 8 seconds to stop a server instance, and 26 seconds to
bring it back up.  Actually stopping the QEJB subsystem and bringing it back
up takes a bit more time (as in five minutes), but I've only had to do that
three times in the last two months, and I do heavy WebSphere development for
multiple clients, as well as benchmarking.

Joe


> -----Original Message-----
> From: owner-midrange-l@midrange.com
> [mailto:owner-midrange-l@midrange.com]On Behalf Of Stone, Brad V (TC)
> Sent: Thursday, May 24, 2001 7:04 AM
> To: 'MIDRANGE-L@midrange.com'
> Subject: RE: Websphere: a resource hog?
>
>
> I also run websphere on a 720, but it is a hog.  Needless to say
> I don't use
> it for prodcution.  Maybe that's where the higher CPW
> requirements come in.
> It runs great with one or two hits (ie playing/testing), but if its a full
> blown e-commerce site getting hundreds of hits a minute (or more), then I
> could see why you'd need all the CPW and loads of memory.
>
> Brad
>
> > -----Original Message-----
> > From: Joe Pluta [mailto:joepluta@PlutaBrothers.com]
> > Sent: Wednesday, May 23, 2001 5:26 PM
> > To: MIDRANGE-L@midrange.com
> > Subject: RE: Websphere: a resource hog?
> >
> >
> > Dennis, I run plenty of WebSphere software on my machine,
> > which is a 370CPW
> > model 270 (with 0CPW interactive).  I don't see why you would
> > need 950CPW,
> > unless you are using WebSphere Advanced Edition.  You should
> > not need the
> > Advanced Edition unless you require EJB support, and most
> > applications do
> > not require EJBs.
> >
> > Joe
> >
> >
> > > -----Original Message-----
> > > From: owner-midrange-l@midrange.com
> > > [mailto:owner-midrange-l@midrange.com]On Behalf Of Denis Robitaille
> > > Sent: Wednesday, May 23, 2001 4:39 PM
> > > To: MIDRANGE-L@midrange.com
> > > Subject: Websphere: a resource hog?
> > >
> > >
> > > Hello all,
> > >
> > > We are currently working on an Ebusiness project. We want to use
> > > an AS/400 with websphere. I am amazed by the power that this
> > > software requires. The minimum requirement calls for over 950
> > > CPW!!! I mean, we have over 40 AS/400 and none of them requires
> > > that much power. I also know that we can run webshere on an NT
> > > box and the required configuration is much less (and would cost
> > > about 75% less ALL included).
> > >
> > > Does somebody knows why this is so?
> > >
> > > My first tought would be that this is a badly written software to
> > > require so much power to operate. Or is that du to the
> > > architecture of the Iseries?
> > >
> > > Denis Robitaille
> > > Directeur services techniques
> > > Cascades Inc
> > > 819 363 5187
> > > fax 819 363 5177
> > >
> > >
> > > +---
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