I-Linux kernel 4.19 entsha ifika ngokuxhaswa kwe-Wi-Fi 6 nokuningi

I-Linux kernel iyinhliziyo yokusabalalisa okuhlukile kwe-Linux. Umndeni wezinhlelo zokusebenza zeLinux usekelwe kule kernel futhi kwenziwa zombili ezinhlelweni zendabuko zamakhompiyutha nakumakhompiyutha nezinsizakalo zomuntu siqu.

Yize ngokuvamile iba ngesakhiwo, nakumadivayisi ahlukahlukene ashumekiwe njengama-routers, izindawo zokufinyelela ezingenantambo, ama-PBX, amabhokisi wokusetha phezulu, abemukeli be-FTA, ama-smart TV, ama-PVR, namadivayisi we-NAS.

Ngenkathi ukutholwa kumakhompyutha wedeskithophu kuphansi, izinhlelo ezisebenza ngeLinux zibusa cishe zonke ezinye izingxenye zekhompyutha, kusuka kumadivayisi eselula kuya kuma-mainframes.

I-Linux yaheha ngokushesha abathuthukisi nabasebenzisi abayithatha njengengqangi yamanye amaphrojekthi wesoftware wamahhala., ikakhulukazi uhlelo olusebenzayo lwe-GNU.

I-Linux kernel ithole iminikelo evela kubaculi ababalelwa ku-12,000 abavela ezinkampanini ezingaphezu kwe-1,200, kufaka phakathi abanye babathengisi abakhulu behardware nabasoftware.

Mayelana nenguqulo entsha yeLinux kernel 4.19

Fue Ngenyanga edlule lapho uLinus Torvalds ethathe ikhefu ekuthuthukisweni kernel. Ngesikhathi sekhefu, uqoke uGreg Kroah-Hartman njengomholi wesikhashana weLinux, owaqhubeka wakhipha iLinux 4.19 ngemuva kokukhishwa kwabangu-XNUMX.

Isimemezelo senguqulo engu-4.19 side kancane kunalokho esikujwayele.

Ngaphezu kwencazelo ejwayelekile yezinguquko ezinkulu, uGreg uphinde wabhala ngokuzibophezela ekwamukeleni abantu abasha nokubasiza bafunde izinto.

Le nguqulo entsha ifaka izici njenge-interface entsha yokuvota esekwe ku-AIO, ukunciphisa ubungozi be-L1TF, isibambi se-latency ye-block ye-I / O, ukudluliswa kwepakethe okusekelwe ngesikhathi, nolayini we-CAKE, phakathi kwezinye izinguquko ezincane.

Ukudluliswa kwepakethe okwenziwa ngesikhathi

Ukudluliswa kwepakethe okwenziwa ngesikhathi iza nenketho entsha yesokhethi ne-qdisc entsha, eklanyelwe ukuthi ukwazi ukubhafa amaphakethe kuze kube yisikhathi esilungisekayo ngaphambi kosuku lwawo lokugcina (izikhathi ze-tx).

Amaphakethe enzelwe ukudluliswa okunesikhathi kufanele athunyelwe nge-sendmsg (), nenhloko yomyalezo wokulawula (wohlobo lwe-SCM_TXTIME) ekhombisa umnqamulajuqu wokudluliswa njengenani lama-nanosecond angama-64-bit.

L1 Ukwehluleka Kwetheminali Ukwehluleka Ukuba Sengozini

Ukuba sengozini kweMeltdown CPU kwavela okokuqala ekuqaleni konyaka futhi kwavumela abahlaseli abangenalutho ukuthi bafunde kalula imemori engenakuphikiswa ezinhlelweni.

Ngemuva kwalokho kwembulwa ubungozi be- "L1 Terminal Failure" (L1TF) (obubizwa nangokuthi yiForeshadow) obulethe zombili izinsongo, okungukuthi, ukuhlaselwa okulula kwememori yomgcini ovela kumsingathi.

Ukwehliswa kuyatholakala ku-Linux kernel 4.19 futhi kuhlanganiswe ne-mainline kernel. Noma kunjalo, zingabiza abanye abasebenzisi.

Ukusekelwa kwe-Wi-fi 6

Uhlobo olusha lweLinux Kernel okuyi-version 4.19 ifikile ngokuthuthuka okusha nokuningi. Enye yamanoveli amasha aqokonyiswe yilokhu kukhishwa kweKernel okusha ukuthi ukuxhaswa kokuqala kwe-Wi-Fi 6 (802.11ax) kungezwe.

I-Wi-Fi 6 inikeza isisekelo sokusetshenziswa okuningi okukhona nokusavelayo, kusuka ekusakazeni ama-movie we-ultra-high definition ekhaya noma usohambeni.

I-Wi-Fi 6 eKususelwa kuzinga elijwayelekile le-IEEE 802.11ax, elinika amandla ukuxhumeka kwesizukulwane esilandelayo kwe-Wi-Fi.

Le modeli entsha ye-Wi-Fi 6 izohlinzeka ngomthamo, ukumbozwa nokusebenza okudingwa abasebenzisi, noma ezindaweni eziminyene ezinjengezinkundla zezemidlalo nezinye izindawo zomphakathi.

I-Wi-Fi 6 izosebenza kahle kakhulu kumabhendi amaza we-2,4 GHz nama-5 GHz asevele asetshenziswa yi-Wi-Fi 5, phambilini i-802.11ac, ethembisa ukufinyelela isivinini esifinyelela ku-11 Gbps. Eqinisweni, inhloso enkulu ye-802.11ax kuzoba ukwandisa ikhwalithi yokuxhuma ezindaweni eziminyene kakhulu.

Ngaphezu kwalokho, uhlelo lokuhlola lwefayela le-EROFS, i-Intel Cache Pseudo-lock nokunye ukuthuthuka kungeziwe. kanye nokuvuselelwa kohlelo lwefayela, i-hardware, ukuphepha, kanye nabashayeli.