Swaps values showing in RED -TCODE ST02

Question

Hi All,
When I checked the ST02 transaction  value of "SWAPS" for program buffer,CUA buffer,screen buffer, Tables generic key buffer and export/import buffer are showing in "RED" colour.
                          (%)           (kb)             %                
Buffer               Hitratio      Allocated     Free Space    swaps
Program           99.88         900000        0.36             19541
CUA                99.9           10,000         1.27             37960
export/import    94.33         40,000         29.10          750,676
Swaps value are showing in RED mark....Is there somthing fishy? What can be done to overcome this issue?
Thanks in advance
Regards,
Prashant.

Answer 1

Dear Prashant,
SWAP is the amount of page space available at OS level. In case of windows it should not be more than 4 times the ram and in case of UNIX 3 times the ram. If swap or paging is configured high is the paging rate and low is the performance. If there is no more free directory entries are available in the buffer for new objects, old objects are removed and the space is occupied by new objects thus a swapping takes place i.e some buffer content is removed from the buffer and replaced by new buffer contents. High swap is normally a symptom of memory bottleneck.
Red indicates swaps are to be avoided and indicate that there might be a bottleneck.
What can be done to overcome this issue?
You need to increase the parameter then.
Double-click on the red value, click on "current parameters" and increase that parameter in the instance profile using RZ10. If the parameters are not yet in the profile, add them.
After changing the instance profile you need to restart the instance.
Regards,
Ashutosh