Izolo sananela kusukela ezindabeni ukuthi Valve qhubeka uthuthukise iProton, ukuqaliswa okususelwa ewayinini ukuletha imidlalo yendabuko ye-Microsoft Windows kuklayenti le-Stream Play le-Linux. I-Valve ayifani nezinye izinkampani futhi ayigxili kuphela kukho konke okuzungeze iMicrosoft, yingakho inkundla yayo yemidlalo yevidiyo I-Steam uphakamise ukuthi kwenziwe izinguquko ezithile ku-kernel ezothuthukisa ulwazi lomsebenzisi lapho edlala ku-Linux.
Uhlobo olusha lweProton, phakathi kwezinye izinto, lufaka phakathi umsebenzi kunciphisa ukusetshenziswa kwe-CPU jikelele kwemidlalo enemicu eminingi. Abathuthukisi be-Steam bathi baphoqelele «isimo esiboshwe yi-CPU emshinini wokugcina ngokunciphisa imininingwane yezithombe ibe ubuncane»Ukubona umehluko phakathi kwenguqulo ekhona yeProton nenye efaka ukuthuthukiswa kwemicu eminingi. Njengoba sibona esithombeni esilandelayo, umthwalo we-CPU wehliswa ngo-10% kumdlalo weTomb Raider.
Imidlalo kuLinux izosebenza kangcono uma i-kernel isebenzisa izinguquko eziphakanyiswe yi-Steam
Uhlobo olusha lwe Iproton kufaka phakathi ukufaka esikhundleni kokuhlola kwe-esync, isici esidala se-WINE esingakhuphula ukusebenza kwemicu eminingi kweminye imidlalo. Kepha abathuthukisi beSteam bathi lesi sici siza nokuhweba: sincike ekusebenzeni kweLinux kernel efentfd (). Ukusetshenziswa kwalokhu kusebenza kungadala ukukhathala kwencazelo yefayela kuzinhlelo zokusebenza ezifuna izinsizakusebenza futhi kungaholela ekuphambaneni okungajwayelekile ku-kernel. Yilapho uSteam kuqhamuke nezinguquko ezithile ku-kernel ye-Linux ukunwebisa ikholi yohlelo lwe-futex () ukudalula ukusebenza okwengeziwe okungasetshenziswa ukuxhasa ukuvumelanisa okuphelele kwentambo echibini.