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03326 - Initial load performance.
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Initial load performance.
Hi Joan,I have done enough BDC and LSMW data loads myself and would agree with
your application people that 8 records a minutes is far too low. Even
the 30 records seem a bit low to me.
Keep in mind the 270 does have a maximum of 24 hard disks (or less if
you use an additional ASP for journaling). Also, it would be interesting
to know how many dialog and update WP you have on that system and if the
dialog work processes are shared by test or production users (and how
many).
BDC is using the screens of the application to verify the data before
its being updated, thus, the data is loaded in the same as you would
enter it manually. But this also means that you will need enough dialog
work processes for it to work properly. When doing some test loads you
could check if all WP are being used by the load, increase the dialog WP
by 1 or 2 if necessary and run another test load.
The processor you mentioned seems to be fast enough for this box and I
would have expected a better load time.
Well, not exactly an answer but that would be the first thing I would
try.
Gerd
-----Original Message-----
From: joan.altadillZr... [mailto:joan.altadillZr...]
Sent: Thursday, October 04, 2001 01:41
To: DoNotReply@consolut.eu
Subject: Initial load performance.
Hi All,
This is a performance question: I've a customer that runs SAP
R/3 4.6B ( last patch level ) on an iSeries model 270 ( 2 CPU's,
4GBytes of main storage,... ), I don't know the exact model but it's
rated by IBM with 2000 CPW, aprox. The customer is doing the initial
data load from his legacy system and he says that performance is not
right.
For example, he needs to load about 35000 items in the
material master, and he does with standard batch input tools, we've
mesured an average speed of 8 materials per minute. This implies 3
days to load all materials. Functional consultants in this project
talk about ratios of 30 materials per minute ( comparing with other
implementations in other hardwares, of course ). I don't have
functional experiences to validate this but I think that this
intensive batch jobs are very hardware dependent, of course, the same
load with the 'state of the art' AS/400 will be different.
From a technical view, the system is working properly: very
good paging ratios ( at SAP level and OS/400 level ), and of course a
high CPU load ( 90% to ++++ ) with 3 batch jobs simultaneously (
we've tested the load with just one batch job and load ratios are
practically the same ).
Could someone confirm my opinion ? Any idea to increase
performance ?
Best regards,
Joan Altadill
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