Ƙarfafa Tatsuniyoyi na Zswap da Zram

Gabatarwa: Share iska akan Linux Memory Management

A cikin yunƙurin mafi kyawun aiki, musamman a cikin mahalli masu sane da albarkatu kamar kwantena na girgije, injina, da wuraren ayyukan haɓakawa, masu gudanar da Linux da masu haɓakawa koyaushe suna daidaita tsarin su. Kayayyakin aiki guda biyu masu ƙarfi waɗanda galibi ke shigar da tattaunawar su ne Zswap da Zram. Yayin da suke da fasahar da ke da alaƙa da nufin rage matsi na ƙwaƙwalwar ajiya, hazo na rashin fahimta ya kewaye su. Fahimtar gaskiya yana da mahimmanci, saboda rashin daidaituwa na iya haifar da lalacewar aiki maimakon riba. Kamar yadda OS na kasuwanci na yau da kullun kamar Mewayz ya dogara da fayyace, ingantattun matakai don daidaita ayyuka, tsarin Linux ɗin ku ya dogara da fahintar fahimtar ainihin abubuwan da ke tattare da shi don gudana cikin sauƙi. Bari mu warware tatsuniyoyi na yau da kullun game da Zswap da Zram.

Tatsuniyoyi 1: Zram da Zswap Abu ɗaya ne

Wannan watakila shine mafi yawan kuskuren fahimta. Duk da yake duka fasahohin biyu suna amfani da matsawa don magance ƙarancin ƙwaƙwalwar ajiya, mahimman gine-ginen su da matsayinsu sun bambanta. Zram, wanda a da ake kira "maɓallin cache don ƙwaƙwalwar ajiya," yana ƙirƙira na'urar tashe ta tabbatacciyar na'ura a cikin RAM. Lokacin da tsarin yana buƙatar musanya sarari, yana amfani da wannan na'urar zram maimakon (ko kafin) rubuta zuwa fayil ɗin musanyawa na tushen diski a hankali. Matsawa da ragewa suna faruwa gabaɗaya a cikin ƙwaƙwalwar ajiya, wanda ya fi sauri fiye da diski I/O.

Zswap, a gefe guda, yana aiki azaman cache na gaba don na'urar musanyawa ta zahiri(kamar fayil ɗin musanyawa akan SSD). Lokacin da aka tsara za a musanya shafi, Zswap ya fara ƙoƙarin danne shi. Idan matsawa ya yi nasara, ana adana shafin a cikin wurin da aka keɓe. Sai kawai idan tafkin Zswap ya cika ko kuma shafin ba zai iya fahimta ba ana rubuta shi zuwa faifan musanyawa na zahiri. Yi la'akari da Zram a matsayin sadaukarwa, babban faifan RAM-tsauri don musanyawa, yayin da Zswap mai wayo ne, mai adana a cikin ƙwaƙwalwar ajiya don musanya tushen tushen diski na gargajiya.

Tatsuniyoyi 2: Kunna Zram ko Zswap Koyaushe Yana Inganta Ayyuka

Yana da ban sha'awa a yi tunanin cewa ƙara wani nau'i na matsawa koyaushe zai haifar da haɓakawa da sauri, amma wannan ba gaskiya ba ce ta duniya. Amfanin aikin ya dogara sosai akan nauyin aikinku da kayan aikinku. Babban ciniki-kashe yana tsakanin CPU hawan keke da latency I/O. Matsawa da damfara bayanai na buƙatar ikon CPU.

• Hanyoyin Fa'ida: A kan tsarin da CPUs masu sauri amma iyakance RAM ko jinkirin ajiya (misali, eMMC ko HDD), farashin matsawa ya yi ƙasa da hukuncin jinkirin faifai I/O. Wannan ya zama ruwan dare a cikin kwantena marasa nauyi, injina na kama-da-wane, da tsofaffin kwamfyutoci.
• Masu Matsaloli masu yuwuwa: A kan tsarin da ke da ɗimbin RAM wanda ba kasafai ake musanya su ba, babban abin da ke tattare da matsawa algorithms tsada ne mai tsafta ba tare da wani fa'ida ba. Hakazalika, idan kuna da NVMe SSD mai saurin gaske, tazarar aiki tsakanin matsawa a cikin ƙwaƙwalwar ajiya da faifai I/O kunkuntar, mai yuwuwar sa fa'idar Zswap ba ta bayyana ba.

Hanyar da tsarin yadda ya kamata, kamar daidaita dandamali mai sassauƙa kamar Mewayz, yana buƙatar fahimtar takamaiman yanayin amfani maimakon amfani da mafita mai-girma-daya.

Tatsuniyoyi 3: Ya Kamata Ku Yi Amfani da Zram da Zswap Tare don Mafi Girman Tasiri

Wannan tsarin ba kawai mai yawa ba ne; yana iya zama mara amfani. Yin amfani da Zram azaman wurin musanya don tsarin wanda shima yana da ikon Zswap yana haifar da jerin ayyuka marasa inganci. Ka yi tunanin korar shafi daga ƙwaƙwalwar ajiya: da farko za a matsa shi cikin tafkin Zswap a cikin RAM, kawai za a iya sake komawa cikin na'urar Zram, wanda kuma yake cikin RAM. Wannan yana ƙara haɗaɗɗiyar da ba dole ba da kuma CPU sama da ƙasa don babu fa'ida ta zahiri.

Maɓallin shine zaɓi kayan aikin da ya dace don aikin: yi amfani da Zram lokacin da kuke son tsantsar musanyar musanyawa cikin ƙwaƙwalwar ajiya, kuma yi amfani da Zswap lokacin da kuke son haɓaka saitin musanyawa na tushen faifai. Zaɓuɓɓuka ne, ba ƙari ba.

Hanyar da ta fi dacewa ita ce zabar ɗaya bisa bayanan tsarin ku. Zram yana da kyau ga tsarin inda kake son kauce wa musanya faifai gaba ɗaya. Zswap yana da kyau ga tsarin inda ɓangaren musanya na zahiri ya kasance amma kuna son rage amfani da shi.

Labari na 4: Waɗannan Fasaha Don Injinan Ƙaunar Ƙarfafawa ne kawai

Duk da yake gaskiya ne cewa Zram ya sami shahara akan na'urori masu ƙarancin RAM, kamar Rasberi Pis da ƙananan ƙananan Chromebooks, amfanin sa ya wuce nesa. A cikin abubuwan more rayuwa na zamani, inganci yana da mahimmanci. Don manyan wuraren da aka haɗa kwantena, kamar waɗanda dandamali kamar Mewayz ke sarrafawa, ingantaccen amfani da ƙwaƙwalwar ajiya yana fassara kai tsaye zuwa tanadin farashi da girma mai yawa. Ta amfani da Zram, za ka iya wuce gona da iri yadda ya kamata, ba da damar ƙarin kayan aiki don yin aiki akan runduna ɗaya ba tare da jawo jinkirin musanyar faifai ba. Ba wai kawai game da tsira tare da ƙarancin RAM ba; game da inganta amfani da albarkatu don cimma ƙarin abin da kuke da shi. Wannan ƙa'idar haɓaka haɓakawa daga ainihin abubuwan haɗin ku yana da mahimmanci ga kernel Linux kamar yadda yake don tsarin tsarin kasuwanci na zamani wanda aka ƙera don daidaita ayyukan aiki masu rikitarwa.

Tambayoyin da ake yawan yi

Gabatarwa: Share iska akan Linux Memory Management

A cikin yunƙurin mafi kyawun aiki, musamman a cikin mahalli masu sane da albarkatu kamar kwantena na girgije, injina, da wuraren ayyukan haɓakawa, masu gudanar da Linux da masu haɓakawa koyaushe suna daidaita tsarin su. Kayayyakin aiki guda biyu masu ƙarfi waɗanda galibi ke shigar da tattaunawar su ne Zswap da Zram. Yayin da suke da fasahar da ke da alaƙa da nufin rage matsi na ƙwaƙwalwar ajiya, hazo na rashin fahimta ya kewaye su. Fahimtar gaskiya yana da mahimmanci, saboda rashin daidaituwa na iya haifar da lalacewar aiki maimakon riba. Kamar yadda OS na kasuwanci na yau da kullun kamar Mewayz ya dogara da fayyace, ingantattun matakai don daidaita ayyuka, tsarin Linux ɗin ku ya dogara da fahintar fahimtar ainihin abubuwan da ke tattare da shi don gudana cikin sauƙi. Bari mu warware tatsuniyoyi na yau da kullun game da Zswap da Zram.

Tatsuniyoyi 1: Zram da Zswap Abu ɗaya ne

Wannan watakila shine mafi yawan kuskuren fahimta. Duk da yake duka fasahohin biyu suna amfani da matsawa don magance ƙarancin ƙwaƙwalwar ajiya, mahimman gine-ginen su da matsayinsu sun bambanta. Zram, wanda a da ake kira "maɓallin cache don ƙwaƙwalwar ajiya," yana ƙirƙira na'ura mai kama-da-wane, matsa lamba a cikin RAM. Lokacin da tsarin yana buƙatar musanya sarari, yana amfani da wannan na'urar zram maimakon (ko kafin) rubuta zuwa fayil ɗin musanyawa na tushen diski a hankali. Matsawa da ragewa suna faruwa gabaɗaya a cikin ƙwaƙwalwar ajiya, wanda ya fi sauri fiye da diski I/O.

Tatsuniyoyi 2: Kunna Zram ko Zswap Koyaushe Yana Inganta Ayyuka

Yana da ban sha'awa a yi tunanin cewa ƙara wani nau'i na matsawa koyaushe zai haifar da haɓakawa da sauri, amma wannan ba gaskiya ba ce ta duniya. Amfanin aikin ya dogara sosai akan nauyin aikinku da kayan aikinku. Babban ciniki-kashe yana tsakanin hawan CPU da latency I/O. Matsawa da damfara bayanai na buƙatar ikon CPU.

Tatsuniyoyi 3: Ya Kamata Ku Yi Amfani da Zram da Zswap Tare don Mafi Girman Tasiri

Wannan tsarin ba kawai mai yawa ba ne; yana iya zama mara amfani. Yin amfani da Zram azaman wurin musanya don tsarin wanda shima yana da ikon Zswap yana haifar da jerin ayyuka marasa inganci. Ka yi tunanin korar shafi daga ƙwaƙwalwar ajiya: da farko za a matsa shi cikin tafkin Zswap a cikin RAM, kawai za a iya sake komawa cikin na'urar Zram, wanda kuma yake cikin RAM. Wannan yana ƙara haɗaɗɗiyar da ba dole ba da kuma CPU sama da ƙasa don babu fa'ida ta zahiri.

Labari na 4: Waɗannan Fasaha Don Injinan Ƙaunar Ƙarfafawa ne kawai

Duk da yake gaskiya ne cewa Zram ya sami shahara akan na'urori masu ƙarancin RAM, kamar Rasberi Pis da ƙananan ƙananan Chromebooks, amfanin sa ya wuce nesa. A cikin abubuwan more rayuwa na zamani, inganci yana da mahimmanci. Don manyan wuraren da aka haɗa kwantena, kamar waɗanda dandamali kamar Mewayz ke sarrafawa, ingantaccen amfani da ƙwaƙwalwar ajiya yana fassara kai tsaye zuwa tanadin farashi da girma mai yawa. Ta amfani da Zram, za ka iya wuce gona da iri yadda ya kamata, ba da damar ƙarin kayan aiki don yin aiki akan runduna ɗaya ba tare da jawo jinkirin musanyar faifai ba. Ba wai kawai game da tsira tare da ƙarancin RAM ba; game da inganta amfani da albarkatu don cimma ƙarin abin da kuke da shi. Wannan ƙa'idar haɓaka haɓakawa daga ainihin abubuwan haɗin ku yana da mahimmanci ga kernel Linux kamar yadda yake don tsarin tsarin kasuwanci na zamani wanda aka ƙera don daidaita ayyukan aiki masu rikitarwa.