Kalkuleta na lamba XXH-128

XXH, wanda kuma aka sani da XXHash, mai sauri ne, wanda ba a ɓoye ba algorithm wanda aka tsara don babban aiki da inganci, musamman a cikin yanayin da saurin yana da mahimmanci, kamar a cikin matsawar bayanai, ƙididdiga, da ƙididdigar bayanai. Bambancin da aka gabatar akan wannan shafin yana samar da lambar zanta 128 bit (16 byte), yawanci ana gani azaman lambar hexadecimal mai lamba 32.

Cikakken bayyanawa: Ban rubuta takamaiman aiwatar da aikin hash da aka yi amfani da shi akan wannan shafin ba. Daidaitaccen aiki ne wanda aka haɗa tare da yaren shirye-shiryen PHP. Na yi mahaɗin yanar gizo ne kawai don sanya shi a fili a nan don dacewa.

Game da XXH-128 Hash Algorithm

Ni ba masanin lissafi ba ne, amma zan yi ƙoƙarin bayyana wannan aikin hash ta hanyar amfani da kwatankwacin da ƴan uwana waɗanda ba mathematics za su iya fahimta ba. Idan kun fi son ingantaccen ilimin kimiyya, cikakken bayanin lissafi, na tabbata za ku iya samun hakan a wani wuri ;-)

Yi ƙoƙarin tunanin XXHash a matsayin babban blender. Kuna son yin santsi, don haka kuna ƙara gungun nau'ikan nau'ikan nau'ikan iri daban-daban. Abu na musamman game da wannan blender shine cewa yana fitar da santsi mai girman girman komi nawa sinadarai da kuka saka a ciki, amma idan kun yi ko da ƙananan canje-canje ga kayan aikin, za ku sami ɗanɗano mai ɗanɗano daban-daban.

Mataki 1: Hada Data

Yi la'akari da bayanan ku azaman gungun 'ya'yan itatuwa daban-daban: apples, ayaba, strawberries.

• Kuna jefa su a cikin blender.
• Kuna haɗa su cikin babban sauri.
• Komai girman 'ya'yan itacen, kuna ƙarewa da ɗan ƙaramin ɗanɗano mai laushi mai gauraye.

Mataki na 2: Sirrin Sauce - Haɗa tare da Lambobin "Magic".

Don tabbatar da santsi (hash) ba shi da tabbas, XXHash yana ƙara wani abu na sirri: manyan lambobi "sihiri" da ake kira primes. Me ya sa firamare?

• Suna taimakawa tare da haɗa bayanai daidai gwargwado.
• Suna da wuya a juyar da injiniyan kayan aikin asali (bayanai) daga santsi (hash).

Mataki na 3: Ƙarfafa Sauri: Yankewa da yawa

XXHash yana da sauri sosai saboda maimakon saran 'ya'yan itace guda ɗaya lokaci guda, yana:

• Yanke manyan gungun 'ya'yan itatuwa gaba daya.
• Wannan yana kama da yin amfani da katuwar sarrafa abinci maimakon ƙaramar wuka.
• Wannan yana ba XXHash damar sarrafa gigabytes na bayanai a sakan daya - cikakke don manyan fayiloli!

Mataki na 4: Taɓawar Ƙarshe: Tasirin Avalanche

Ga sihirin:

• Ko da kun canza ƙaramin abu ɗaya kawai (kamar waƙafi a cikin jumla), smoothie ɗin ƙarshe ya ɗanɗana mabanbanta.
• Ana kiran wannan tasirin avalanche:
  • Ƙananan canje-canje = manyan bambance-bambance a cikin zanta.
  • Yana kama da ƙara digo na launin abinci a cikin ruwa, kuma ba zato ba tsammani duka gilashin ya canza launi.