I found out that SRM thresholds are configurable but the default settings don’t appear in the workgroup.yml.
The settings for CPU are
something like this:
native_api.cpu_limit_enabled True/False (to disable cpu monitoring, it is true
and are similar for memory:
native_api.memory_limit_all_processes_gb (If tableau processes are taking up
over 95% of system memory the highest memory process is recycled).
There is also a setting which
you can enable which recycles the processes during a time window, you set the
beginning and the end time and the processes monitored by SRM are restarted at
some point during that window.
tabadmin set native_api.recycling_time_end