ST05 Vs SE30

ST05 and SE30 are used for analysis of the performance of the program.

ST05

It is used for the detail analysis of the performance of the program, such as how the select statements are behaving, have we written the selects with all index keys etc. And also this is used to find user exits, BADIs etc.

 performance trace, use for select query in abap.

 whatever u will go for making decision in performance tuning regarding select query code.

SE30

It is the summary of the performance of the program. It tells you the time taken to execute your program by each server. For optimal performance program all the servers’ summary should be in green color... but we can judge the performance accurately by this.

system performance in se30 u will use st01.