I-ART noma i-Dalvik ku-Android - kuyini, okuyinto engcono, ukuthi ungayinika kanjani amandla

02/25/2014 amadivaysi eselula

I-Google yethule isikhathi sokusebenza esisha njengengxenye yesibuyekezo se-Android 4.4 KitKat. Manje, ngaphezu komshini we-Dalvik virtual, amadivaysi anamuhla anenqubo yokusetshenziselwa i-Snapdragon anethuba lokukhetha imvelo ye-ART. (Uma ufike kule ndatshana ukuze ufunde ukuthi ungayinikeza kanjani amandla i-ART ku-Android, skrola uze ufike ekugcineni, lolu lwazi lunikezwa lapho).

Sithini isikhathi sokusebenza futhi umshini ophathelene nawo uhlangana kanjani nakho? Ku-Android, ukusebenzisa izinhlelo owazilanda njengamafayela we-APK (futhi engekho amakhodi ahlanganisiwe), kusetshenziswa umshini we-Dalvik umshini (ngokuzenzakalelayo, okwamanje ngalesi sikhathi) nemisebenzi yokuhlanganisa iwela phezu kwayo.

Kumshini we-Dalvik virtual, indlela yeJust-In-Time (JIT) isetshenziselwa ukuhlanganisa izinhlelo zokusebenza, okusho ukuhlanganisa ngokuqondile ekuqaleni noma ngesikhathi sezenzo ezithile zomsebenzisi. Lokhu kungaholela ezikhathini ezinde zokulinda lapho uqala uhlelo, "amabhuleki", ukusetshenziswa kakhulu kwe-RAM.

Umehluko omkhulu phakathi kwendawo yama-ART

I-ART (i-Android RunTime) ingumshini we-virtual omusha, nokho olingwayo, owethulwe ku-Android 4.4 futhi ungawunikeza amandla kuphela kuzilungiselelo zonjiniyela (kuzokhonjiswa ngezansi ukuthi ungakwenza kanjani lokhu).

Umehluko omkhulu phakathi kwe-ART ne-Dalvik yindlela ye-AOT (Ahead-Of-Time) lapho kufakwa izicelo, okuvame ukuthi kushiwo ukuhlanganiswa ngaphambi kokufaka kwezicelo ezifakiwe: ngalokho-ke ukufakwa kokuqala kohlelo lokusebenza kuzothatha isikhathi eside, kuzothatha isikhala esithe xaxa kwisitoreji sedivayisi ye-Android , nokho, ukwethula kwabo okulandelayo kuzokwenzeka ngokushesha (sekuhlanganisiwe), kanye nokusetshenziswa okuncane kweprosesa ne-RAM ngenxa yesidingo sokuphindisela, ngombono, kungaholela ekusetshenzisweni okuncane amandla.

Njengoba kuyiqiniso futhi yikuphi okungcono, i-ART noma i-Dalvik?

Kukhona ukuqhathanisa okuningi okuhlukahlukene kokusebenza kwamadivayisi we-Android ezindaweni ezimbili ezikwi-Intanethi, futhi imiphumela iyahluka. Olunye uvivinyo lokufisa kakhulu nokuningiliziwe okunjalo luyatholakala ku-partpolice.com (isiNgisi):

• ukusebenza ku-ART naku-Dalvik,
• impilo yebhethri, ukusetshenziswa kwamandla ku-ART ne-Dalvik

Ukufingqa imiphumela, kungashiwo ukuthi izinzuzo ezisobala njengamanje ngalesi sikhathi (kufanele sikunake ukuthi ukusebenza ku-ART kuyaqhubeka, le ndawo isesiteji sokuhlola kuphela) i-ART ayinakho: kwezinye izivivinyo, ukusebenza usebenzisa lo maphakathi kubonisa imiphumela engcono (ikakhulukazi ngokusebenza, kepha hhayi kuzo zonke izici zawo), futhi kwezinye izinzuzo ezithile ezikhethekile ayivelakancane noma i-Dalvik ingaphambili. Isibonelo, uma sikhuluma ngempilo yebhethri, khona-ke kuphambene nokulindelwe, i-Dalvik ikhombisa imiphumela ecishe ilingane ne-ART.

Isiphetho esijwayelekile sezivivinyo eziningi ukuthi kunomehluko osobala lapho usebenza nge-ART nange-Dalvik. Kodwa-ke, imvelo entsha kanye nendlela esetshenziswe kuyo ibukeka iyathembisa futhi, mhlawumbe, ku-Android 4.5 noma ku-Android 5, umehluko onjalo uzoba sobala. (Futhi, iGoogle ingenza i-ART imvelo ezenzakalelayo).

Amaphuzu ambalwa okufanele uwahlolisise uma unquma ukunika amandla imvelo I-ART esikhundleni salokho I-Dalvik - ezinye izinhlelo zokusebenza zingahle zingasebenzi kahle (noma zingasebenzi nakancane, ngokwesibonelo I-whatsapp kanye I-Titanium Isipele), nokuqalisa kabusha okugcwele I-Android ingathatha imizuzu eyi-10 - 20: okungukuthi, uma ukhanyise I-ART, futhi ngemuva kokuqalisa kabusha ifoni noma ithebhulethi, iyabanda, linda.

Ungayinika kanjani amandla i-ART ku-Android

Ukuze unike amandla imvelo ye-ART, kufanele ube nefoni ye-Android noma ithebhulethi ene-OS 4.4x kanye ne-processor ye-Snapdragon, ngokwesibonelo, i-Nexus 5 noma i-Nexus 7 2013.

Okokuqala udinga ukunika amandla imodi yonjiniyela ku-Android. Ukuze wenze lokhu, iya kuzilungiselelo zedivayisi, iya entweni ethi “About phone” (Mayelana nethebhulethi) bese uthinta inkambu ethi “Yakha inombolo” kaningana uze ubone umlayezo wokuthi usuwunjiniyela.

Ngemuva kwalokho, into "Yabathuthukisi" izovela kuzilungiselelo, futhi lapho - "Khetha imvelo", lapho kufanele ufake ama-ART esikhundleni seDalvik, uma unesifiso esinjalo.