New fancy "smart" memory_control. Ignore "admin config" output for automatically tuned params?

[sladebe]

For "memory_control", there is a new default value of "smart" (in 16.0 SP03 PL04).

According to SysAdmin Guide Vol 2 -> Automatic Memory Management -> Smart Memory Control, the following parameters are automatically controlled in "smart" mode and should not be explicitly set:

ci_pool_size ci_packet_size ci_max_cmds cap_sqm_write_request_limit cap_sqm_write_msg_limit sqm_cache_size sqm_cmd_cache_size sqt_max_cache_size sqt_max_prs_size spq_cache_size dsi_sqt_max_cache_size dist_sqt_max_cache_size md_sqm_write_request_limit

But when I run "admin config,<param>" on one of these supposedly automatically tuned params, it shows the what look like the old default values.

Should I ignore "admin config" output for automatically tuned params?

Thanks in advance
Ben

[kenneth_brozovich · Accepted solution]

Hi Ben -

Yes, you should ignore admin config output as those config parameters are obsolete when smart memory is set - memory allocation is now dynamic for those parameters.

[sladebe · Accepted solution]

Ok, thanks for the info.

That really should be in the docs. People could think they're setting tuning params which in reality are not being used.

Should I submit a suggestion so that the "admin config" says something like "auto" for the appropriate parameters?

[kenneth_brozovich]

You can. I'm going to submit a recommendation to the documentation team to add some verbage to clarify these parameters are obsolete.

[sladebe]

A suggestion to fix 'admin config' output when memory_control is set to 'smart' has been submitted:

https://influence.sap.com/sap/ino/#/idea/232062