Abhijit,
The ResUsageSAWT table does not contain anything about parsing engine tasks, as its focus is AMP worker tasks exclusively.
The SPS table does produce information about priority scheduler activities on the parsing engine. Look for VprType = PE. I have not validated this, but the NumTasks field in the SPS table may represent the number of PE tasks active at the end of the logging interval, or at least include them among other things. Don't quote me on that though.
The simple thing to assume is that number of SQLDriver tasks being used at any point in time will equal the number of active sessions on that PE. You really do not have to monitor their levels.
Thanks, -Carrie
Abhijit,
The ResUsageSAWT table does not contain anything about parsing engine tasks, as its focus is AMP worker tasks exclusively.
The SPS table does produce information about priority scheduler activities on the parsing engine. Look for VprType = PE. I have not validated this, but the NumTasks field in the SPS table may represent the number of PE tasks active at the end of the logging interval, or at least include them among other things. Don't quote me on that though.
The simple thing to assume is that number of SQLDriver tasks being used at any point in time will equal the number of active sessions on that PE. You really do not have to monitor their levels.
Thanks, -Carrie