What is performance analysis

Question

hi gurus
can any one suggest me
what is performance analysis
for which purpose it is used
how to use that one ...
thank you
regards
kals.

Answer 1

hai
  kalyan
       In SE30, u can see perform analysis. it consists of two parts.
  1. Reording performance data
  2. Analyzing the performance data
1.  Reording performance data :
         The system measures the transaction, program, or  procedure, and writes the result to a performance data file.
The following steps to be followed.
Procedure:
From the initial screen of the runtime analysis transaction:
1. Enter a transaction code, a program name, or the name of a function module.
2. In the Comment line, enter a short description of the performance data file.
3. Restrict the analysis to the options that you need. Refer also to Selecting the Measurement Options.
4. To start the measurement, choose Measure runtime.
5. Run the transaction, program, or function module as normal.
6. Return to the initial screen of the runtime analysis transaction.
To do so, either leave the transaction, program, or function module as normal, or start the runtime analysis again.
  2. Analyzing the performance data
The analysis overview contains general information about the performance of your program.
It displays the overall runtime of the program in microseconds, both in figures and as a bar chart, as well as telling you how much memory each particular modularization unit required.
The bar chart displays the total runtime required for
The ABAP interpreter
The database
System statements.
The time taken by above three types statements in ur program / object  is shown in that bargraph.
if useful, reward points.
Thank you,
G.V.K.Prasad