How can I find what is the actual cache settings in a server?
What server are you referring to and what is the version?
Thanks for your response.
The server is an archive server; version 2014 R2.
The Cache settings are defined in the Archive Tuning Parameters.
In PI SMT, go to Operation > Tuning Parameters > Archive (tab).
Here, you can see the definition and value of each tuning parameter.
If you are interested in the Read Cache settings, the relevant tuning parameters include:
Generally speaking, you should not change the cache settings as the default values should be sufficient.
Do you plan on making any changes?
If so, why?
I am running some performance testing on a server and wanted to know how long it should take for the cache values be swept out.
Otherwise, the results would not reflect regular conditions.
By default, I believe inactive records are flushed from the Read Cache every 10 minutes.
The Read Cache also gets trimmed based on the tuning parameters I highlighted previously.
It is possible to interact with the Read Cache through the Command Line using the administrator tools located in %PISERVER%\adm\.
You can clear the entire Read Cache with the following command:
piartool -cad * -reset
Or you can clear the Read Cache for particular tags with the following command:
piartool -cad <tagmask> -reset
Let me know if this helps.
Thanks for your reply.
do you know where I can check the default “time flushed” for read cache?
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