Linux kernel parameters

[Former Member]

Hi all,

We are frequent memory issues where the utlisation has shot drastically and freezes the system.

Whats the ideal size to be maintained for the below parameters.Are these parameters the culprits for high utlisation when everythign at the SAP and DB looks fine.

/proc/sys/kernel/shmall = 5242880

/proc/sys/kernel/shmmax = 23136829430

red hat release 4 and oracle 10g.Thanks.

[former_member189546]

Hello,

Do you have this parameter set?

STD implementation (es/implementation=std)

regards,

John Feely

[Former Member]

Hi,

What major difference does it make if we have parameter set to std.Thanks.

[markus_doehr2]

> What major difference does it make if we have parameter set to std.Thanks.

It's a different memory allocation - read

Note 941735 - SAP memory management for 64-bit Linux systems

Markus

[Former Member]

Hi Markus,

Thanks for the response.

es/implementation is not set in our profiles and in rz11 it is shown as map and according to the note the defualt would be map since my kernle ersion is 7.0