checking memory utilization

[Former Member]

Hi All,

                I would like to know how much memory utilized by sap instance, where i have already gone through ST03 and  ST06.

  How to check the performance improvement where I have increased RAM from 4 GB to 8 GB.

Please help me which statistics i need to check to  know the performance is increased due to  RAM size.

Thanks

Srikanth

[former_member215981]

Hello,

please check ST06, you may find the following entry

Memory

Description                          Value Description                          Value

Physical mem avail  Kb            16776412 Physical mem free   Kb             2455960
Pages in/s                               0 Kb paged in/s                            0
Pages out/s                             15 Kb paged out/s                          60

Best Regards,

Yong Luo

[former_member183107]

Hi,

If the OS is unix then you can use the below commands:-

1. top

2. swapinfo -tam

3. glance

Regards,

Himanshu

[Former Member]

Hi Rishi,

                OS is Linux , Actually I would like to check how much physical ram memory using out of total memory?

Thanks

Srikanth

[Former Member]

Hi,

Please try some of the below steps.

Please check the usage of shared memory segments:

ipcs -as |grep "^s" |awk '{a = a + $9} END{print a}'

how much it grow (for example every 24 hours you can see the increase using this.)

Please run this commad.

ipcs -am

then total the column in bold and you will get how uch memory is used by particular SID.

m   36339717 0x00000000 --rw-r-----    sidadm    sapsys    sidadm    sapsys      1       1024 23564 23564 18:03:51 no-entry 18:03:51

next is the top command that will show you the usage by each process.

Have you got SMD and wily agent in solman and this system connected to it. if yes you can check the use in Wily also for this host.

Hope it helps.

Thanks

Rishi abrol

[Former Member]

Hi,

Have a look in transaction ST02 to the SAP memory section.

Regards

[Former Member]

Hi,

Can you please provide os so that we can provide you some os based tools to check the utilization.

Have you take some stats that can give you comparison what is the improvement.

What was the reason that you increased the memory?

Any specific process that was giving issue.

Thanks

Rishi Abrol