what is have to do if there is something red in st02?
in my server it is showing red. help required.
Entries in red means there is lots of buffering which means the size of buffers is too small and hence this is slowing down the performance
best method is Increase the value of these buffers by RZ10 profile parameters by around 15-20%
refer to http://help.sap.com/saphelp_nw04/helpdata/EN/c4/3a6ecc505211d189550000e829fbbd/content.htm
for more info