spfile parameters derived from cpu_count 11.1 up to 21

In Oracle databases some spfile parameters are derived based on others, if they are not set explicit.
One of the main drivers I discovered is CPU_COUNT.
So I did some tests based in the past for version, now up to 21.

the script I used this time is basically (of course with proper version name).

In comparison to previous versions sga_target is bigger again, now it's 12g (otherwise instances with higher ocunts wouldn't even start)

#!/usr/bin/ksh  -x

integer i=1
while ((i <= 255));
do
  print " $i ";

  echo "*.audit_file_dest='/_some_dir_/BX1/adump'
*.audit_trail='db'
*.compatible='21.0.0.0.0'
*.control_files='/u02/oradata/CDB1/control01.ctl','/u02/oradata/CDB1/control02.ctl'
*.db_block_size=8192
*.db_create_file_dest='/u02/oradata'
*.db_name='cdb1'
*.db_unique_name='cdb1'
*.diagnostic_dest='/u01/appl/oracle'
*.remote_login_passwordfile='EXCLUSIVE'
*.sga_target=12g
*.enable_pluggable_database=true
*.undo_tablespace='UNDOTBS1'
*._disable_cpu_check='TRUE'
*.cpu_count=$i" > /_some_dir_/cpus/initBX1_$i.ora

  echo "shutdown abort;
startup pfile='/_some_dir_/cpus/initBX1_$i.ora' ;

insert into init_parameters
select '21.08'     ,
       $i         ,
       a.ksppinm  ,
       b.ksppstvl ,
       c.ksppstvl
from x\$ksppi a, x\$ksppcv b, x\$ksppsv c
where a.indx = b.indx and a.indx = c.indx;

commit;

select distinct(\"CPUs\") from init_parameters;

shutdown;
exit;"> cpus/21doit$i.sql

sqlplus "/ as sysdba" @cpus/21doit$i.sql >cpus/21log$i.log

sleep 5

  (( i = i + 1));
done

To get a good picture of the changes, feel free to select parameters, versions or whatever you want below.
Raw data is available at GistHub.
The js app is available here.
(It's based on an idea PerfSheet.js by Luca Canali.

As some of the values are not numbers, I applied this mapping:

TRUE	1
FALSE	0
OFF	0
ADAPTIVE	-1
INSTANCE	-2

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