U-Edward shishkin ngunjiniyela lokho ubephethe ukugcina ukusekelwa kohlelo lwefayela iReiser4 kule minyaka eyishumi edlule ngezinhlobo ezintsha ze-kernel. Yize uhlelo luye lwagcinwa, ngokungafani nezinye izinhlelo zamafayela eziqhubekele phambili ekuthuthukisweni kwazo. U-Edward Shishkin wasebenza ekunakekelweni kweReiser4 futhi ngasikhathi sinye ngisebenza ekwakhiweni kohlelo lwefayela leReiser5 esivele ikhona iyatholakala ukuze ihlolwe.
Le nguqulo entsha ye IReiser5 ivelele ukufaka okusha emikhawulweni efanayo, okwenziwa hhayi ezingeni le-block, kodwa ngohlelo lwefayela.
Njengenzuzo yale ndlela, amaphakheji we-FS + RAID / LVM ne-FS angahambelani amenyezelwa njenganenkinga ethile (ZFS, Btrfs), njengenkinga yesikhala samahhala, usinki wokusebenza lapho ugcwalisa ivolumu ngaphezulu kwama-70%, ama-algorithms wokuqamba evolumu ephelelwe yisikhathi (i-RAID / LVM), ayikuvumeli ukuthi usabalalise idatha ngokusobala ngevolumu enengqondo.
Kwi-FS efanayo, ngaphambi kokungeza idivayisi kuvolumu enengqondo, kufanele ifomethwe ngokusetshenziswa okujwayelekile kwe-mkfs.
Ngokungafani ne-ZFS, iReiser5 ayisebenzisi ungqimba lwayo lokuvimba, noma isebenzisa i-block block eyabiwayo O (1). Kungenzeka ukuqamba ngendlela elula nephumelelayoivolumu enengqondo evela kumadivayisi webhulokhi osayizi abahlukahlukene nemikhawulokudonsa. Imininingwane isatshalaliswa phakathi kwalawa madivayisi kusetshenziswa ubuchule obusha obusha.
Ekumenyezelweni kwale nguqulo yecala U-Edward Shishkin ubeke amazwana:
Ngiyajabula ukumemezela indlela entsha yokwengeza amadivayisi we-block kumanani anengqondo emshinini wendawo.
Ngicabanga ukuthi ileveli entsha esezingeni lokuthuthuka kohlelo lwefayela (nohlelo olusebenzayo): amavolumu endawo anokulinganisa okufanayo ...
Ekusebenzeni kwethu, ukukala okuvundlile kwenziwa ngezindlela zohlelo lwefayela, kunokuba kusho izindlela zokuvimba. Umsebenzisi ulawula ukuhamba kwezicelo ze-I / O ezikhishwe kudivayisi ngayinye ...
Njengoba u-Edward Shishkin ephawula: ingxenye yezicelo ze-I / O ezibhekiswe kudivayisi ngayinye zilingana namandla ayo abelwe umsebenzisiukuze ivolumu enengqondo igcwaliswe ngemininingwane "ngokulinganayo" nangokuthi "ngokulingana".
Ngasikhathi sinye, amadivayisi we-block-low block athola amabhulokhi ambalwa okugcina, futhi amadivayisi asebenza kancane awabi yibhodlela (njengoba kunjalo, ngokwesibonelo, ku-RAID arrays).
Ukungeza idivaysi kwivolumu nokususa ucingo kwivolumu kuhambisana nokulinganisa kabusha lokho kugcina "ubulungiswa" bokusabalalisa.
Onke amadivayisi we-block afakiwe angagcinwa ngasikhathi sinye ngevolumu enengqondo usebenzisa indlela ngayinye ngayinye (defrag for hard drive, post lahla imibuzo ye-SSD, njll.)
Isikhala samahhala ngevolumu enengqondo silawulwa ukusetshenziswa okujwayelekile kwe-df (1). Ngaphezu kwalokho, umsebenzisi unethuba lokuqapha isikhala samahhala entweni ngayinye yedivayisi yevolumu enengqondo.
Intuthuko enkulu ekukhuleni okuvundlile yenziwa kusetshenziswa ifayili lenethiwekhi efanayo (GPFS, Luster, njll.). Kodwa-ke, bekungacaci, ukuthi ungasifaka kanjani isicelo
ubuchwepheshe bakho ku-FS yendawo.Ngokuyinhloko, kungenxa yokuthi kufayela lendawo amasistimu awanakho ukunethezeka okuningi njenge "isitoreji sangemuva" njengenethiwekhi bayakwenza. Lokho i-FS yasendaweni enakho isikhombimsebenzisi esingesihle neze ukuxhumana nongqimba lwebhulokhi. Isibonelo, ku-Linux FS yendawo unga vele ubhale bese ukhipha isicelo se-I / O ngokumelene nesiphepheli esithile.
Phakathi kwezinto ezisesehlwini lweReiser5 TODO yizo:
- Ukuthuthuka kwe-FSCK ukusekela imiqulu enengqondo
- I-Asymmetric LV enebhulokhi engaphezu kweyodwa yemethadatha ngevolumu ngayinye
- amavolumu anengqondo ahambisanayo
- Izifinyezo ze-3D ze-LV
- Ukusatshalaliswa kwemethadatha kuma-subvolume amaningi
- Bheka / buyisela inani elinengqondo usebenzisa fsck utility (ukuthuthuka kusuka enguqulweni edlule)
- Amavolumu omhlaba jikelele (amanethiwekhi), engeza amadivayisi kwimishini ehlukile.
Uma ufuna ukwazi kabanzi ngakho, ungaxhumana isixhumanisi esilandelayo.
Hawu, bengicabanga ukuthi ama-reiserfs ashone ngemuva kukaHans ..