High roll wait time, gui time and processing time

[Former Member]

Hi all,

We are having a performance issue with the system at the moment. After running ST03N and STAD, we have determined that we are having abnormally high roll-wait, GUI and processing times.

Here are some results from STAD:

CPU time: 2956ms

Processing time: 4417ms

Roll wait time: 1319ms

GUI Time: 2859ms

Can someone direct me towards finding the problem?

If you need more information please let me know. I would post a screenshot if I was able to.

Thanks,

HL

[Former Member · Accepted solution]

Hi,

Regarding Performance Of SAP system it will not be possible to Come to conclusion with the one Single data.

GUI time is basically the time spent in front end i.e Your Network load or such time

Coming to CPU time Can you see ST06 what is the CPU Utilization of your system?

Roll Wait time is the time Spent in buffer if you can share us the OS and Memory configuration.

We can Try to tune the Roll memory ( extended memory tuning) so that we can try to reduce the Roll time.

If possible try to find the Top Dialog Response Time Transaction Is it Standard or for Z Programs.

https://cw.sdn.sap.com/cw/docs/DOC-14387

Go through this link you might get clear idea of performance.

Thanks & Regards,

Balaji.S

[former_member189546]

Hello,

What db, kernel do you have?

The high GUI time may be caused either by a high

amount of data that has to be transferred over the network or by a slow

network connection. To reduce the amount of data, you can activate the

low speed connection and thereby work with lesser bandwidth. See SAP

Note Number 203924.

regards,

John Feely