U-Edward shishkin ngumbhekisi phambili lowo inoxanduva lokugcina inkxaso yefayile yeReiser4 kule minyaka ilishumi idlulileyo kwiinguqulelo ezintsha zekernel. Nangona le nkqubo igcinwe, ngokungafaniyo nezinye iinkqubo zefayile eziqhubele phambili kuphuhliso lwazo. U-Edward Shishkin wasebenza kulondolozo lweReiser4 kwaye kwangaxeshanye ndisebenza kuphuhliso lwenkqubo yefayile yeReiser5 esele ikho iyafumaneka ukuvavanywa.
Le nguqulo intsha ye I-Reiser5 imele ukubandakanya ukutsha kwinqanaba elifanayo, Olwenziwa hayi kwinqanaba lebhloko, kodwa ngenkqubo yefayile.
Njengenzuzo yale ndlela, I-FS + RAID / LVM kunye ne-FS ezingafaniyo neephakeji zibhengezwe zisimahla (ZFS, Btrfs), ezinje ngengxaki yendawo yasimahla, ukusebenza ngokuntywila xa ugcwalisa ivolumu ngaphezulu kwe-70%, i-algorithms yoyilo lwevolumu ephelelwe lixesha (RAID / LVM), ayikuvumeli ukuba usasaze ngokufanelekileyo idatha kumthamo osengqiqweni.
Kwi-FS efanayo, ngaphambi kokongeza isixhobo kumthamo onengqiqo, kufuneka ifomathiwe ngokusetyenziswa komgangatho we-mkfs.
Ngokungafaniyo ne-ZFS, iReiser5 ayiphumezi eyayo ibhloko yomaleko, nangona isebenzisa ibhloko yasimahla eyabelwe u-O (1). Kunokwenzeka ukuqamba ngendlela elula nefanelekileyoUmthamo osengqiqweni ovela kwizixhobo zebhloko ezinobungakanani obahlukeneyo kunye neebhendwidth. Idatha ihanjiswa phakathi kwezi zixhobo kusetyenziswa ii-algorithms ezintsha.
Kwisibhengezo solu hlobo lolingo U-Edward Shishkin uphawule:
Ndonwabile ukwazisa indlela entsha yokongeza izixhobo zebhloko kwimilinganiselo efanelekileyo kumatshini wasekhaya.
Ndicinga ukuba linqanaba elitsha ngokomgangatho kwinkqubo yefayile (kunye nenkqubo yokusebenza) yophuhliso: ivolumu yendawo enesikali esifanayo ...
Kwindlela yethu, ukukala okuthe tyaba kwenziwa ngeendlela zenkqubo yefayile, endaweni yeendlela zebhloko. Umsebenzisi ulawula ukuhamba kwezicelo ze-I / O ezikhutshelwe isixhobo ngasinye ...
Njengoko uEdward Shishkin ephawula: Inxalenye yezicelo ze-I / O ezibhekiswe kwisixhobo ngasinye zilingana nomthamo wazo onikezelwe ngumsebenzisiukuze umthamo osengqiqweni ugcwaliswe ngedatha "ngokulinganayo" kunye "ngokufanelekileyo".
Kwangelo xesha, izixhobo zebhlokhi yamandla asezantsi ifumana iibhloko ezimbalwa zokugcina, kwaye izixhobo zokusebenza ezisezantsi aziyi kuba ngumqobo (njengoko kunjalo, umzekelo, kulungelelwaniso lweRAID).
Ukongeza isixhobo kumthamo kunye nokususa isixhobo kumthamo kukhatshwa kukulinganisa kwakhona egcina "ubulungisa" bokwabiwa.
Zonke izixhobo zebhloko ezibandakanyiweyo zinokugcinwa ngaxeshanye kumthamo osengqiqweni usebenzisa indlela nganye nganye kubo (ukuzikhusela kwidrive hard, thumela imibuzo elahliweyo ye-SSD, njl.).
Indawo yasimahla yevolumu esengqiqweni ilawulwa ngumgangatho osemgangathweni df (1). Ukongeza, umsebenzisi unethuba lokujonga indawo yasimahla kwicandelo ngalinye lesixhobo sevolumu esengqiqweni.
Inkqubela phambili ebonakalayo yokulinganisa ngokuthe tyaba yenziwe kusetyenziswa ifayile yenethiwekhi efanayo (GPFS, Luster, njl. Njl.). Nangona kunjalo, bekungacaci, indlela yokufaka isicelo
ubuchwepheshe bakho kwi-FS yendawo.Ngokukodwa, kungenxa yokuba kwifayile yendawo iinkqubo azinabunewunewu kangako "njengokugcina isiphelo" njengenethiwekhi bayayenza. Yintoni i-FS yengingqi enonxibelelwano olubi kakhulu ukusebenzisana nomaleko webhloko. Umzekelo, kwiLinux FS yendawo onokuyenza yenza nje kwaye ukhuphe isicelo se-I / O ngokuchasene nesixhobo esithile.
Phakathi kwezinto ezisese kuluhlu lweTODO lukaReiser5 zi:
- Ukuphuculwa kwe-FSCK ukuxhasa imiqulu esengqiqweni
- I-Asymmetric LV engaphezulu kwebhloko enye yemethadatha yevolumu nganye
- imiqulu enengqiqo ehambelanayo
- Iifoto ze-3D ze-LV
- Ukuhanjiswa kwemethadatha kwimimandla emininzi emininzi
- Jonga / buyisela ubungakanani obunengqondo usebenzisa i-fsck eluncedo (ukuphuculwa kwinguqulelo yangaphambili)
- Iivolumu zehlabathi (iinethiwekhi), ukongeza izixhobo koomatshini abohlukeneyo.
Ukuba ufuna ukwazi ngakumbi ngayo, unokuthetha eli khonkco lilandelayo.
Wow, bendicinga ukuba reiserfs wasweleka emva kukaHans ..