Ibu nke sava? top iwu/CPU ojiji/ibu nkezi ngụkọta usoro

mgbe anyị mụtara ijiLinux Ihe nkesa VPS nawuo webụsaịtịMgbe nke ahụ gasịrị, ọ dị mkpa ịghọta ihe nkezi ibu dị iche iche dị iche iche, n'ihi na anyị kwesịrị ijitopIwu ahụ ghọtara ọnọdụ mmecha nke usoro ahụ ma na-eleba anya na mgbanwe mgbanwe nke oge dị adị.

Iji ghọta nke a, ọ dị mkpa ịghọta nkọwa mgbanwe ndị a.

Nkọwa zuru oke nke nkezi ibu iwu kacha elu

Ibu nke sava? top iwu/CPU ojiji/ibu nkezi ngụkọta usoro

Nke a bụ ntụziaka zuru ezu banyere otu esi eji ya ▼

top - 01:06:48 up 1:22, 1 user, load average: 0.06, 0.60, 0.48
Tasks: 29 total, 1 running, 28 sleeping, 0 stopped, 0 zombie
Cpu(s): 0.3% us, 1.0% sy, 0.0% ni, 98.7% id, 0.0% wa, 0.0% hi, 0.0% si
Mem: 191272k total, 173656k used, 17616k free, 22052k buffers
Swap: 192772k total, 0k used, 192772k free, 123988k cached

PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
1379 root 16 0 7976 2456 1980 S 0.7 1.3 0:11.03 sshd
14704 root 16 0 2128 980 796 R 0.7 0.5 0:02.72 top
1 root 16 0 1992 632 544 S 0.0 0.3 0:00.90 init
2 root 34 19 0 0 0 S 0.0 0.0 0:00.00 ksoftirqd/0
3 root RT 0 0 0 0 S 0.0 0.0 0:00.00 watchdog/0
  • Ahịrị 5 mbụ nke mpaghara ọnụ ọgụgụ bụ ọnụ ọgụgụ nke sistemụ niile.
  • Ahịrị 1 bụ ozi kwụ n'ahịrị ọrụ, yanauptimeNsonaazụ nke mmezu nke iwu ahụ bụ otu ihe ahụ.

Ihe dị n'ime ya bụ ndị a:

  • 01:06:48 ugbu a
  • elu 1:22 System na-agba ọsọ oge na usoro nke awa: nkeji
  • Nọmba onye ọrụ 1 nke ndị ọrụ abanyela ugbu a
  • ibu nkezi: 0.06, 0.60, 0.48 Sistemu ibu, nke bụ nkezi ogologo nke ọrụ kwụ n'ahịrị.
  • Ụkpụrụ atọ ahụ bụ nkezi ụkpụrụ sitere na nkeji 3, nkeji 1, na nkeji iri na ise gara aga ruo ugbu a.
  • Ahịrị 2 na 3 bụ usoro na ozi CPU.
  •  

Mgbe enwere ọtụtụ CPU, ọdịnaya a nwere ike gafere ahịrị abụọ.Ọdịnaya dị ka ndị a:

  • Ọrụ: 29 ngụkọta ọnụ ọgụgụ nke usoro
  • 1 na-agba ọsọ Ọnụ ọgụgụ nke usoro ịgba ọsọ
  • 28 ihi ụra Ọnụ ọgụgụ nke usoro ihi ụra
  • 0 kwụsịrị Ọnụ ọgụgụ usoro kwụsịrị
  • 0 ọnụọgụ zombie nke usoro zombie
  • CPU(s): 0.3% anyị Pasent CPU nke ohere onye ọrụ ji
  • 1.0% sy Pasent CPU nke oghere kernel ji
  • 0.0% bụ Pasent CPU ji usoro nke agbanweela ihe kacha mkpa na oghere nhazi onye ọrụ
  • 98.7% pasent CPU na-abaghị uru
  • Pasent 0.0% nke oge CPU na-eche ntinye na mmepụta
  • 0.0% hi
  • 0.0% Si

Ndị a bụ ahịrị abụọ ikpeazụ nke ozi ebe nchekwa:

  • Mem: 191272k mkpokọta ebe nchekwa anụ ahụ
  • 173656k ji mkpokọta ebe nchekwa anụ ahụ ejiri
  • 17616k mkpokọta free ebe nchekwa
  • 22052k buffers Ọnụ ego ebe nchekwa ejiri dị ka cache kernel
  • Gbanwee: 192772k mkpokọta swap mpaghara
  • 0k ejiri mkpokọta swap mpaghara ejiri
  • 192772k mkpokọta n'efu n'efu
  • 123988k mkpokọta echekwabara mpaghara swap.

A na-atụgharị ọdịnaya nke ebe nchekwa gaa na mpaghara swap wee laghachi na ebe nchekwa, mana edegharịbeghị mpaghara ejiri mee ihe.

Uru a bụ nha mpaghara swap ebe ọdịnaya adịlarị na ebe nchekwa.

Mgbe a gbanwere ebe nchekwa kwekọrọ ọzọ, ọ dịghịkwa mkpa idegara mpaghara swap akwụkwọ.

Ozi zuru ezu gbasara usoro a, egosiri n'okpuru mpaghara ọnụ ọgụgụ na mpaghara ozi usoro ọ bụla.

Nke mbụ, ka anyị ghọta ihe kọlụm ọ bụla pụtara.

aha kọlụm pụtara

  • Id usoro PID
  • PPID nhazi usoro nne na nna
  • Ezigbo aha njirimara RUSER
  • UID ID onye ọrụ nke onye nwe usoro ahụ
  • USER aha njirimara nke onye nwe usoro
  • Kpọkọtanụ aha otu onye nwe usoro ahụ
  • TTY Aha ọnụ ebe a si malite usoro a.E gosipụtara usoro esighị na ọdụ ọdụ ka ?
  • PR mkpa
  • NI ọmarịcha uru.Ụkpụrụ na-adịghị mma na-egosi mkpa dị elu, ụkpụrụ dị mma na-egosi mkpa dị ala
  • P CPU ikpeazụ ejiri mee ihe, naanị bara uru na gburugburu ọtụtụ CPU
  • %CPU Pasent nke oge CPU ejiri kemgbe emelitere ikpeazụ
  • Oge ngụkọta oge CPU nke usoro a na-eji, na sekọnd
  • Oge+ Ngụkọta oge CPU nke usoro a na-eji, na 1/100 sekọnd
  • % MEM Pasent ebe nchekwa anụ ahụ nke usoro a na-eji
  • Ngụkọta ego nchekwa mebere nke usoro VIRT ji, na kb. VIRT=SWAP+RES
  • Ogo nke ebe nchekwa mebere nke usoro SWAP ga-esi gbanwee, na kb.
  • Ogo nke ebe nchekwa anụ ahụ nke usoro RES na-eji ma ọ bụghị swapped, na kb. RES=CODE+DATA
  • CODE Oke ebe nchekwa anụ ahụ nke koodu arụrụ arụ ji, na kb
  • DATA nha nke ebe nchekwa anụ ahụ nke akụkụ na-abụghị koodu arụrụ arụ ọrụ (ngalaba data + stack), na kb.
  • SHR nkekọrịta nha ebe nchekwa, na kb
  • nFLT mmejọ ibe
  • Ọnụọgụ nke ibe emegharịla kemgbe nDRT ikpeazụ dere.
  • S Ọkwa usoro.
  • D = ọnọdụ ihi ụra anaghị akwụsị akwụsị
  • R = agba ọsọ
  • S = ụra
  • T= Track/nkwụsị
  • Z = usoro zombie
  • COMMAND aha iwu/ahịrị iwu
  • WCHAN Ọ bụrụ na usoro a na-ehi ụra, gosi aha ọrụ usoro ihi ụra
  • Ọkọlọtọ ọkọlọtọ ọrụ, rụtụ aka na sched.h

linux ibu nkezi ntuziaka debugging

na-ele anyatopMgbe ọkwa gosipụtara site na iwu ahụ, ọ dị mkpa ka emeziwanye ya dịka ya siri dị, manatopIwu ahụ na-egosi naanị ọdịdị, yabụ anyị nwere ike ịgafeiostatma obuvmstatNyekwuo ihe nlele.

vmstat ka ịlele ibu sistemu

vmstat
procs -------memory-------- ----swap-- -----io---- --system-- ----cpu----
r b swpd free buff cache si so bi bo in cs us sy id wa
0 0 100152 2436 97200 289740 0 1 34 45 99 33 0 0 99 0

nwe

  • The r kọlụm na-anọchi anya ọnụ ọgụgụ nke usoro na-agba ọsọ na-echere oge CPU oge iberi.
  • Kọlụm b na-egosi ọnụọgụ nke usoro na-echere akụrụngwa, dị ka ichere I/O, ma ọ bụ swapping ebe nchekwa, wdg.

cpu na-egosi ọkwa ojiji nke cpu

  • Kọlụm anyị na-egosi pasentị nke oge CPU ejiri na ọnọdụ onye ọrụ. Mgbe uru nke anyị dị oke elu, ọ pụtara na usoro onye ọrụ na-eri ọtụtụ oge CPU, ma ọ bụrụ na ọ dị elu karịa 50% ogologo oge, ọ dị mkpa ịtụle ịkwalite mmemme onye ọrụ.
  • Kọlụm sy na-egosi pasentị nke oge cpu nke usoro kernel ji.N'ebe a, uru ntụaka nke anyị + sy bụ 80% Ọ bụrụ na anyị + sy karịrị 80%, ọ pụtara na enwere ike ịnwe CPU ezughi oke.
  • Kọlụm wa na-egosi pasentị oge CPU nke IO na-echere.
  • Ntụaka uru nke wa ebe a bụ 30% Ọ bụrụ na wa gafere 30%, ọ pụtara na IO ichere dị njọ. Nke a nwere ike ịbụ n'ihi ọtụtụ ohere ịnweta diski, ma ọ bụ eriri bandwit nke diski ma ọ bụ ohere diski. njikwa (tumadi ngọngọ arụmọrụ).
  • Kọlụm id na-egosi pasentị oge cpu anaghị arụ ọrụ.

Isiokwu na-esonụ na-akọwa otú elu Linux Load Nkezi?

Kedu ihe dị elu nke nkezi ibu Linux kwesịrị ekwesị? Lelee ojiji nke CPU 🔗 Kedu ihe dị elu nke nkezi ibu Linux? Lelee ojiji nke CPU

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n'elu - 20:44:30 elu 12 min, 1 onye ọrụ, nkezi ibu: 2.21, 8.39, 6.48

  • Ihe nkesa gị na-ejikwa onwe ya, ihe ị ga-eme bụ ịlele ihe nkesa gị n'onwe ya site na SSH.
  • Lelee ihe ọ na-agba?Kedu usoro na ihe ndị ọzọ?
  • Ọ bụrụ na ọ dị mkpa, gbalịa malitegharịa ihe nkesa ahụ.
  • Ọ bụrụ na mgbe ịmalitegharịrị ihe nkesa ahụ, ibu ahụ ka dị oke elu, gbalịa chọpụta usoro a na-ebufe ibu ma kwụsị ya.
  • Ọ bụrụ na ọ dị mkpa, malitegharịa usoro (ọ bụghị ihe nkesa) n'otu n'otu.
  • Ma ọ bụ mgbe ị nyochachara ọrụ ndị ahịa "ihe kpatara ibu VPS / ihe nkesa ji dị elu", ọ nweghị ụzọ isi mee ya, n'ikpeazụ, naanị otu ụzọ bụ ịbawanye nhazi nkesa.

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Hope Chen Weiliang Blog ( https://www.chenweiliang.com/ ) kesara " Ibu ihe nkesa? iwu kacha elu / ojiji CPU / usoro mgbako nkezi, ọ ga-enyere gị aka.

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