iowait kawai wani nau'i ne na lokacin zaman banza wanda ba za a iya tsara komai ba. Ƙimar ƙila ko ba ta da amfani wajen nuna matsalar aiki, amma tana gaya wa mai amfani cewa tsarin ba shi da aiki kuma zai iya ɗaukar ƙarin aiki.
Me yasa iowait babban Linux?
I/O jira da aikin uwar garken Linux
Kamar wannan, babban iowait yana nufin CPU ɗinku yana jira akan buƙatun, amma kuna buƙatar ƙarin bincike don tabbatar da tushe da tasiri. Misali, ma'ajiyar uwar garken (SSD, NVMe, NFS, da sauransu) kusan koyaushe yana yin kasala fiye da aikin CPU.
Ta yaya zan san idan iowait dina babban Linux ne?
Don gano ko I/O yana haifar da jinkirin tsarin zaku iya amfani da umarni da yawa amma mafi sauƙi shine babban umurnin Unix . Daga layin CPU(s) zaka iya ganin adadin CPU na yanzu a cikin I/O Wait; Mafi girman lambar mafi yawan albarkatun cpu suna jiran samun I/O.
Nawa ne girman iowait?
Mafi kyawun amsar da zan iya ba ku ita ce "iowait ya yi girma sosai lokacin da yake shafar aiki." ku"Ana kashe 50% na lokacin CPU a iowait "Halin da ake ciki na iya zama lafiya idan kuna da I/O da yawa da kuma ɗan ƙaramin aikin da za ku yi muddin ana rubuta bayanan zuwa faifai "sauri sosai".
Ta yaya zan sami Iowait akan Linux?
Idan ba ku da umarnin “iostat” akwai, kuna son shigar da kunshin “sysstat” - akan Ubuntu, galibi ana yin wannan tare da umarnin “apt-samun shigar sysstat” kuma akan Centos, ana iya yin hakan. tare da "yum shigar da sysstat". Madaidaicin umarnin da na ba da shawarar shine "iostat -mxy 10”- sannan jira dakika 10.
Yaya ake lissafin kaya a cikin Linux?
A Linux, matsakaicin nauyi shine (ko ƙoƙarin zama) “matsakaicin nauyin tsarin”, ga tsarin gaba ɗaya, auna adadin zaren da ke aiki da jiran aiki (CPU, faifai, makullai marasa katsewa). Sanya daban, yana auna adadin zaren da ba su da aiki gaba ɗaya.
Menene IO na yau da kullun a cikin Linux?
Kashi na lokacin da CPU ko CPUs ba su da aiki yayin da tsarin ke da fitaccen buƙatun I/O diski. Saboda haka, % iowait yana nufin cewa daga mahallin CPU, babu wani aiki da zai iya gudana, amma aƙalla I/O ɗaya yana ci gaba. iowait kawai wani nau'i ne na lokacin zaman banza wanda ba za a iya tsara komai ba.
Menene matsakaicin nauyin Linux?
Matsakaicin nauyi shine matsakaicin nauyin tsarin akan sabar Linux na wani ƙayyadadden lokaci. Watau, buƙatun CPU ne na uwar garken wanda ya haɗa da jimlar gudu da zaren jira. … Waɗannan lambobin su ne matsakaicin nauyin tsarin na tsawon minti ɗaya, biyar, da 15.
Ta yaya zan duba iostat?
Umurnin nunawa kawai takamaiman na'ura shine iostat -p NA'URARA (Inda na'ura shine sunan drive-kamar sda ko sdb). Kuna iya haɗa wannan zaɓi tare da zaɓi na -m, kamar a cikin iostat -m -p sdb, don nuna ƙididdiga na tuƙi ɗaya a cikin mafi kyawun sigar karantawa (Hoto C).
Menene ke haifar da iowait?
iowait da lokacin da masu sarrafawa / masu sarrafawa ke jira (watau yana cikin rashin aiki kuma ba ya yin komai), lokacin da a zahiri akwai fitattun buƙatun I/O diski. Wannan yawanci yana nufin cewa toshe na'urorin (watau diski na zahiri, ba ƙwaƙwalwar ajiya ba) sun yi jinkiri sosai, ko kuma sun cika.
Menene lokacin jiran CPU?
Jiran CPU ɗan faɗi ne da ɗan gajeren lokaci don adadin lokacin da aiki ya jira don samun damar albarkatun CPU. Ana amfani da wannan kalmar sosai a cikin mahalli masu ƙima, inda injunan kama-da-wane da yawa ke gasa don albarkatun sarrafawa.
Yaya ake amfani da umarnin iostat a cikin Linux?
Lura: 10 Linux iostat Command don Ba da rahoton CPU da I/O Statistics an jera su a ƙasa:
- iostat: Samun rahoto da ƙididdiga.
- iostat -x: Nuna ƙarin bayanan ƙididdiga.
- iostat -c: Nuna ƙididdiga na cpu kawai.
- iostat -d: Nuna rahoton na'urar kawai.
- iostat -xd: Nuna ƙarin ƙididdiga na I/O don na'ura kawai.