Performance bottleneck on Production

[Former Member]

Hi,

We have a Development ->Production in our landscape. Development system is rarely used.

Production system has 1.8 processing units, 9.5GB RAM, over 60% free disk space. We are experiencing performance issues. During peak hours the CPU usage is around 40% most of the time and at times suddenly rises above 150%. The are 140 users and all of them have to wait long to

carry out the day-to-day processing.

We experience long running jobs and response time is much more than the normal threshold.

Please advise if the hardware is suffiecient enough to withstand the system load. Help us fine tune the system.

Regards,

Sai R.

[Former Member]

What OS and DBMS are you using?

40% CPU usage during peak hours is not too much but this is not the main concern when tuning a system as there are so many factors affecting the performance, probably the problem is on Database or buffers but as already said by other SDN member, you need to investigate a lot more to find what is the real problem and then here somebody could help you find the solution.

Why don´t you use the Early Watch service that every SAP customer has the right to ask for? this for sure will be a lot better than asking here because it is really hard to tell you what could be happening if the info needed is too much to get using this way.

[Former Member]

Hi Sai,

as EVERY performance problem:

It needs to be investigated FIRST and then you should make a descision !

You are talking on 1.8 CPUs - but you see 150% CPU Load - that is good news, as the CPUs can work on the one hand on the other hand we do not know, how many CPUs this LPAR has in reality - at least about 2.7 obviously ...

But: You never know, if the workload is the issue, or wrong customizing, missing indexes or bad ABAPs. This needs to be investigated and then you can do the appropiate stuff - but without that, it is just doing something without any useful reason.

The interesting thing here is, that even we that do these kind of analyzations pretty often, are often wrong with our first ideas ...

=> I do not believe anybody, that gives you a recommendation on the above (or a bit more) data ...

Regards

Volker Gueldenpfennig, consolut international ag

http://www.consolut.net - http://www.4soi.de - http://www.easymarketplace.de

[Former Member]

BTW, we are on ECC 5.0 and kernel release is 640