CPU Utilization Idle % is low

[Former Member]

Dear Friends,

when i check transaction st06 of database server i found that CPU Utilization Idle % is 1 or 2. and i am also check last hour snapshot it show same . What this mean and how i can increase it? Is it affect on server?

Please reply.

sachin

[Former Member]

Hi,

Analysis for ST06 (Operating System monitoring)

If the idle CPU is indicated as being less than 20 %, there is a CPU bottleneck. In an optimal configuration, more than 35 % CPU capacity is idle

If there is a CPU bottleneck:

1. If possible, redistribute load to other servers.

2. To find out which processes are using the most CPU, in the Operating System Monitor choose Detail analysis menu >> Top CPU processes. If the processes have high CPU utilization, proceed as follows:

For R/3 work processes ("disp+work"): Using the process ID indicated in Top CPU processes, identify the corresponding program name and user name in the Work Process Overview (transaction SM50).

For database processes: Identify corresponding long running SQL statements in the Database Process Monitor. To access this monitor, call transaction ST04 (Database Overview), and choose Detail analysis menu. Then choose, for example, Oracle Session.

For external processes, find out whether the process can be stopped or redistributed.

Amount of memory indicated beside Physical memory available. Compare this figure with the paging rate. To obtain the paging rate, double-click Pages in/s. The paging rates for the last 24 hours are displayed in the columns Paged in [Kb/h] and Paged out [Kb/h]. If 20% of the total amount of physical memory is greater than the amounts indicated in these columns, you can normally be sure there is no memory bottleneck.

If there is a memory bottleneck:

1. If possible, redistribute load to other servers.

2. Check the size of the file system cache – See SAP Note 78498 in SAPNet. If necessary, reduce file system cache to < 10% of the total physical memory.

3. To identify users and their programs with a high memory consumption, call the Mode List for the extended memory. To do this, in the Setups/Tune Buffers monitor (transaction ST02), choose Detail analysis menu >> SAP memory >> Mode List.

i hope it will you.

kiran kumar .v