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I think Vic's links are a good place to start. Every application is such a snowflake that it is very hard to make blanket recommendations. The community link will give you a good idea of how system resources are used and what to monitor to be aware of whether your app is near limits of has resources tp spare that could be rightsized. The documentation links are good for Caché / IRIS general guidelines as well. 

Hi, yes you can import using the system management portal; System >Classes Then import into %SYS.

Here is version information before;

%SYS>write $$version^SystemPerformance()
14

After import, you can see the version information changed. Also note there was a conversion run. The custom profile I had created before the import existed after the update. 

%SYS>write $$version^SystemPerformance()
$Id: //iris/2020.1.0/databases/sys/rtn/diagnostic/systemperformance.mac#1 $
%SYS>d ^SystemPerformance
Re-creating command data for new ^SystemPerformance version.
Old command data saved in ^IRIS.SystemPerformance("oldcmds").
Current log directory: /path/path/iris/mgr/
Available profiles:
     1  12hours     - 12 hour run sampling every 10 seconds
     2  24hours     - 24 hour run sampling every 10 seconds
     3  30mins      - 30 minute run sampling every 1 second
     4  4hours      - 4 hour run sampling every 5 seconds
     5  5_mins_1_sec- 5 mins 1 sec
     6  8hours      - 8 hour run sampling every 10 seconds
     7  test        - A 5 minute TEST run sampling every 30 seconds

Select profile number to run: 5

Collection of this sample data will be available in 420 seconds.
The runid for this data is 20200518_094753_5_mins_1_sec.

%SYS>

You can also import from the command line;

USER>zn "%SYS"

%SYS>do $system.OBJ.Load("/path/SystemPerformance-IRIS-All-2020.1.0-All.xml","ck")

Load started on 05/18/2020 10:02:13
Loading file /path/SystemPerformance-IRIS-All-2020.1.0-All.xml as xml
Imported object code: SystemPerformance
Load finished successfully.

%SYS>
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