How to calculate calculate appropriate levels for maxThreads and maxSockets, in the httpServer stanza of ~/etc/system/default/server.conf, for a HEC collector instance?

Is there a formula to make a stab at appropriate levels for maxThreads and maxSockets, in the httpServer stanza of ~/etc/system/default/server.conf, for a HEC collector instance? Our current setting is automatic, which seems to set the limits too low: # Automatically tune these limits: maxThreads = 0 maxSockets = 0