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03325 - Initial load performance.
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Initial load performance.
Joan,how many items are in one batch-input map?
From my own experience I recommend you, that not more than 5000 - 6000 items
should belong to one map.
The more items in one map the more time is used to process the map.
Processing time is increasing over-proportional.
kind regards
Karl Grauer
Amphenol-Tuchel Electronics
August-Haeusser-Str. 10
DE 74080 Heilbronn
phone: +49 7131/929327
mailto:karl.grauerZa... <mailto:karl.grauerZa...>
www.amphenol.com
-----Ursprüngliche Nachricht-----
Von: joan.altadillZr... [mailto:joan.altadillZr...]
Gesendet am: Donnerstag, 4. Oktober 2001 10:41
An: DoNotReply@consolut.eu
Betreff: 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 ?
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