Use fast PerfLog methods in PerfItem
Use fast PerfLog methods in PerfItem

This speeds up our LOG_SCOPE usage several fold.

balborian/libmesh,pbauman/libmesh,giorgiobornia/libmesh,BalticPinguin/libmesh,90jrong/libmesh,dschwen/libmesh,giorgiobornia/libmesh,capitalaslash/libmesh,90jrong/libmesh,roystgnr/libmesh,hrittich/libmesh,balborian/libmesh,90jrong/libmesh,balborian/libmesh,90jrong/libmesh,libMesh/libmesh,giorgiobornia/libmesh,giorgiobornia/libmesh,dschwen/libmesh,roystgnr/libmesh,roystgnr/libmesh,dschwen/libmesh,libMesh/libmesh,hrittich/libmesh,capitalaslash/libmesh,pbauman/libmesh,pbauman/libmesh,capitalaslash/libmesh,jwpeterson/libmesh,BalticPinguin/libmesh,giorgiobornia/libmesh,BalticPinguin/libmesh,giorgiobornia/libmesh,hrittich/libmesh,libMesh/libmesh,dschwen/libmesh,libMesh/libmesh,balborian/libmesh,pbauman/libmesh,libMesh/libmesh,balborian/libmesh,BalticPinguin/libmesh,pbauman/libmesh,jwpeterson/libmesh,jwpeterson/libmesh,roystgnr/libmesh,dschwen/libmesh,pbauman/libmesh,jwpeterson/libmesh,90jrong/libmesh,hrittich/libmesh,BalticPinguin/libmesh,libMesh/libmesh,roystgnr/libmesh,roystgnr/libmesh,capitalaslash/libmesh,dschwen/libmesh,dschwen/libmesh,roystgnr/libmesh,jwpeterson/libmesh,90jrong/libmesh,balborian/libmesh,hrittich/libmesh,jwpeterson/libmesh,balborian/libmesh,hrittich/libmesh,hrittich/libmesh,BalticPinguin/libmesh,dschwen/libmesh,libMesh/libmesh,giorgiobornia/libmesh,pbauman/libmesh,BalticPinguin/libmesh,hrittich/libmesh,roystgnr/libmesh,capitalaslash/libmesh,pbauman/libmesh,BalticPinguin/libmesh,jwpeterson/libmesh,pbauman/libmesh,libMesh/libmesh,capitalaslash/libmesh,90jrong/libmesh,balborian/libmesh,giorgiobornia/libmesh,hrittich/libmesh,jwpeterson/libmesh,balborian/libmesh,capitalaslash/libmesh,balborian/libmesh,giorgiobornia/libmesh,90jrong/libmesh,capitalaslash/libmesh,90jrong/libmesh