▁cont rolling ▁the ▁status , ▁activity , ▁and ▁performance ▁of ▁networks , ▁computers , ▁applications , ▁and ▁servers . ▁ ▁Fe atures ▁The ▁following ▁features ▁are ▁provided ▁by ▁the ▁Performance ▁Co - P il ot : ▁▁ ▁R uns ▁on ▁many ▁Unix / Linux ▁variants , ▁as ▁well ▁as ▁Windows ▁and ▁Mac ▁OS ▁X . ▁ ▁Has ▁a ▁fully ▁distributed ▁architecture ; ▁any ▁client ▁may ▁interact ▁with ▁any ▁instrument ed ▁server ▁or ▁application . ▁ ▁Has ▁a ▁plug - in ▁architecture ▁for ▁instrument ing ▁any ▁custom ▁application ▁or ▁server . ▁ ▁Can ▁query ▁hundreds ▁of ▁oper ational ▁measurements ▁from ▁operating ▁systems , ▁Apache , ▁Send mail , ▁MySQL , ▁the ▁Java ▁VM , ▁VM ware , ▁K VM , ▁etc . ▁ ▁Can ▁send ▁oper ational ▁parameters ▁to ▁remote ▁processes , ▁to ▁change ▁their ▁behavior ▁( cf . ▁computational ▁ste ering ). ▁ ▁Can ▁query ▁or ▁send ▁any ▁type ▁of ▁value , ▁including : ▁integers , ▁strings , ▁floating ▁point ▁numbers , ▁and ▁arbitrary ▁composite ▁data ▁structures . ▁ ▁Has ▁a ▁communication ▁protocol ▁designed ▁to ▁minim ize ▁consumption ▁of ▁network ▁band width . ▁ ▁History ▁Performance ▁Co - P il ot ▁was ▁originally ▁created ▁by ▁S G I ▁as ▁a ▁propriet ary ▁software ▁product , ▁exclus ively ▁for ▁S G I ▁customers . ▁P CP ' s ▁initial ▁design ▁was ▁done ▁at ▁S G I ▁in ▁Melbourne , ▁Australia , ▁by ▁Ken ▁Mc Don ell ▁and ▁Mark ▁Good win , ▁starting ▁in ▁October ▁ 1 9 9 3 . ▁The ▁pair ▁were ▁joined