Ukulinda kwe-I/O (iowait) iphesenti lesikhathi lapho i-CPU (noma ama-CPU) ayengenzi lutho phakathi nalapho isistimu inezicelo ezisalindile ze-I/O zediski.
Isho ukuthini i-Iowait?
I-IOWait (evame ukulebulwa ngokuthi %wa phezulu) iyisigaba esingaphansi sokungenzi lutho (%ukungenzi lutho kuvame ukuvezwa njengokungenzi lutho ngaphandle kwezigaba ezichaziwe), okusho ukuthi i-CPU ayenzi lutho.
Kuyini ukulinda kwe-IO ku-Linux?
I-iowait imane nje iwuhlobo lwesikhathi sokungenzi lutho lapho kungahlelwa lutho. Inani lingase libe usizo noma lingabi wusizo ekuboniseni inkinga yokusebenza, kodwa litshela umsebenzisi ukuthi isistimu ayisebenzi futhi kungenzeka ukuthi ithathe umsebenzi owengeziwe.
Uyini umsebenzi we-IO?
Ngokuyisisekelo, njengoba umbhalo usho, umsebenzi we-I/O uyinoma yini i-CPU engakwazi ukuyenza ngokwayo, futhi kufanele ithembele kwezinye izingxenye. Ngokuvamile lokhu kuhilela ukulinda isikhathi eside, uma kuqhathaniswa nesivinini se-CPU, ngakho-ke kungcono ukushintshela komunye umsebenzi ngenkathi ulindile.
Yini ebangela i-high disk IO?
Uma kunomugqa ku-I/O yesitoreji, ngokuvamile uzobona ukwanda kokubambezeleka. Uma idrayivu yokugcina ithatha isikhathi ukuphendula isicelo se-I/O, khona-ke lokhu kubonisa ukuthi kukhona ibhodlela kusendlalelo sesitoreji. Idivayisi yesitoreji ematasa ingaba yisizathu sokuthi kungani isikhathi sokuphendula siphezulu.
Ingakanani i-Iowait eningi kakhulu?
1 Impendulo. Impendulo engcono kakhulu engingakunika yona ithi "i-iowait iphezulu kakhulu uma ithinta ukusebenza." U-“50% wakho wesikhathi se-CPU uchithwa ku-iowait ” isimo singase sibe kahle uma une-I/O eningi kanye nomunye umsebenzi omncane kakhulu okufanele uwenze inqobo nje uma idatha ibhalwa kudiski “ngokushesha ngokwanele”.
Yini i-WA phezulu?
sy - Isikhathi esichithwa endaweni ye-kernel. ni - Isikhathi esichithwe kuqhuba izinqubo zabasebenzisi ezinhle (Umsebenzisi ochazwe kuqala) i-id - Isikhathi esichithwe emisebenzini engenzi lutho. wa - Isikhathi esichithwe kulindile kuma-peripherals e-IO (isb. idiski)
Kuyini ukusebenza kwe-IO?
Uma kuziwa ezindabeni zokusebenza igama olizwa kaningi lithi IO. I-IO iyisinqamuleli sokufaka/okukhiphayo futhi ngokuyisisekelo iwukuxhumana phakathi kohlu lwesitoreji nomsingathi. Okokufaka idatha etholwe yilungu elifanayo, futhi okuphumayo idatha ethunyelwa kuyo. … Imisebenzi eminingi yohlelo lokusebenza inezici ze-IO.
Siyini isikhathi sokulinda se-CPU IO?
Ukulinda kwe-I/O (iowait) iphesenti lesikhathi lapho i-CPU (noma ama-CPU) ayengenzi lutho phakathi nalapho isistimu inezicelo ezisalindile ze-I/O zediski.
Ngiyibheka kanjani i-Iostat?
Umyalelo wokubonisa idivayisi ethile kuphela uthi iostat -p DEVICE (Lapho i-DEVICE kuyigama ledrayivu–njenge-sda noma i-sdb). Ungakwazi ukuhlanganisa leyo nketho nenketho -m, njengaku-iostat -m -p sdb, ukuze ubonise izibalo zedrayivu eyodwa ngefomethi efundeka kakhudlwana (Figure C).
Kungani i-IO ihamba kancane?
I/O iboshelwe njengenkinga engokoqobo
Njengoba i-CPU ishesha, izinqubo zivame ukungakhuphuki isivinini ngokulingana nesivinini se-CPU ngoba zithola i-I/O-bound eyengeziwe. Lokhu kusho ukuthi izinqubo eziboshiwe ze-I/O zihamba kancane kunezinqubo ezingaboshiwe ze-I/O, azisheshi. … Ngamafuphi, izinhlelo ngokwemvelo zishintsha zibe yi-I/O eboshelwe kakhulu.
Ingabe i-Io isebenzisa i-CPU?
I-Cpu isetshenziselwa ukuqalisa zonke izicelo ze-io bese isamukele uma isilungile …akukona ukuthi i-cpu ayibandakanyi emisebenzini ye-io.
Iyini intambo ye-IO?
Imicu ye-I/O inikezelwe ukwenza imisebenzi ye-I/O kumadivayisi we-virtual block. Ukuze kusebenze kahle imisebenzi ye-I/O, hlinzeka ngochungechunge olulodwa lwe-I/O kudivayisi ngayinye yebhulokhi ebonakalayo. … Uchungechunge lwe-I/O oluningi kakhulu luzonciphisa ukusebenza kwesistimu ngokukhuphula phezulu kwesistimu.
Yini ebhekwa njenge-high disk IO?
Izimpawu ze-high disk IO
Umthwalo weseva ephezulu — Isilinganiso somthwalo wesistimu sidlula u-1. chkservd izaziso — Uthola izaziso mayelana nesevisi engaxhunyiwe ku-inthanethi noma ukuthi uhlelo alukwazi ukuqalisa kabusha isevisi. Amawebhusayithi asingathwe kancane - Amawebhusayithi aphethwe angadinga ngaphezu komzuzu ukulayisha.
Iyiphi inombolo ye-IOPS enhle?
Ukuminyana kwesitoreji se-IOPS nokugcina ingqondo yomsebenzisi yakho iphilile
Ngakho i-VM evamile enediski engu-20-40 GB izothola ama-IOPS ama-3 kuye kwayi-6 kuphela. Okubi. I-50-100 IOPS nge-VM ngayinye ingaba yithagethi enhle yama-VM azosebenziseka, angasalibeleki.
Ngingalinyusa kanjani isivinini sediski yami?
Amathiphu alandelayo angasiza ekukhuliseni isivinini se-hard drive yakho.
- Skena futhi uhlanze i-hard disk yakho njalo.
- Nciphisa i-hard disk yakho ngezikhathi ezithile.
- Faka kabusha i-Windows Operating System yakho ngemva kwezinyanga ezimbalwa.
- Khubaza isici sokulala.
- Guqula ama-hard drive akho abe yi-NTFS esuka ku-FAT32.