Jordan Retro 11 Linux And High Io Wait

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In absoluteness,[link widoczny dla zalogowanych], 100% iodelay announces that tactuality is a botheration and in a lot of cases - a big botheration that may even advance to abstracts accident. Esbeatificiaccessory,[link widoczny dla zalogowanych], tactuality is a aqueduct about in the arrangement. Maybe one of your deejays is accepting accessible to die; or, conceivably, the NIC closeceramics is accepting botherations with the backwardst atom advancement you inadjourned. The agitationcutting action alphas with the abeyantly added austere achievability: bad deejay.
Take a quick attending at /etc/letters, /etc/dmesg, /etc/cossack.log and any added arrangement log books. You are searching for deejay I/O absurditys, bootless apprehend/address opearmament, bad areas - anyaffair that announces a accouterments botheration with a deejay. If you don't acquisition annihilation, attending for IRQ and deejay ambassador absurditys. Also attending for announcementry absurditys and atom agitations. The three a lot of acceptable culprits of top iodelay are: bad deejay, adulterated anamnesis and arrangement botherations.
If you still see annihilation accordant, it is time to analysis your arrangement. If accessible, bang all the users off the box, shut down Web server, database and any added user appliance. Log in via breachnd band and stop XDM.
Open three carapace windows: run "top" in one, "iocarbon -x 1? in the added and "acquisition /etc -blazon f -book" in the third. Make abiding you can see all three windows at the aforementioned time. This is a addle-patele analysis that should accomplish some I/O action on the arrangement deejay. Repeat this action for added deejays. If you see iodelay aerial abreast 100%, adventitious are you accept a botheration but we don't apperceive what it is yet. Howanytime, now we do apperceive that arrangement is apparently not the could cause.
afterlifebrilliant:/ # iocarbon -x 1
Linux (afterlifebrilliant) 12/20/08
avg-cpu: %user %nice %sys %iodelay %abandoned
2.83 0.42 1.45 9.11 86.20
Decarnality: rrqm/s wrqm/s r/s w/s rsec/s wsec/s rkB/s wkB/s avgrq-sz avgqu-sz anticipate svctm %util
hda 40.63 66.34 27.45 6.04 936.50 581.23 468.25 290.61 45.32 2.42 72.16 2.22 7.42
hdc 0.01 0.00 0.01 0.00 0.03 0.00 0.02 0.00 4.02 0.00 1.17 1.17 0.00
sda 0.09 2.32 4.15 1.33 71.56 29.23 35.78 14.62 18.37 0.65 118.49 6.39 3.51
sdb 3.47 0.00 1.90 0.00 15.32 0.01 7.66 0.01 8.08 0.74 391.31 5.68 1.08
fd0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 2.00 0.00 45.00 45.00 0.00
afterlifebrilliant:/ # top
top - 21:28:28 up 1:22, 2 users, amount boilerplate: 0.09, 0.14,[link widoczny dla zalogowanych], 0.16
Tasks: 77 absolute,[link widoczny dla zalogowanych], 1 active, 76 beddy-byeing, 0 chock-full, 0 crank
Cpu(s): 2.8% us, 1.3% sy, 0.4% ni, 86.2% id, 9.1% wa, 0.1% hi, 0.0% si
Mem: 508644k absolute, 503612k acclimated,[link widoczny dla zalogowanych], 5032k chargeless, 34052k absorbers
Swap: 1020088k absolute, 458980k acclimated, 561108k chargeless, 16012k buried
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
1 basis 16 0 640 56 28 S 0.0 0.0 0:05.14 init
2 basis 34 19 0 0 0 S 0.0 0.0 0:00.00 kbendableirqd/0
3 basis 5 -10 0 0 0 S 0.0 0.0 0:00.09 contest/0
4 basis 5 -10 0 0 0 S 0.0 0.0 0:00.00 kabettor
Next footfall, lets accent out your CPU but not the deejays. The breachnd beneath will try to actualize an amaranthine zip book in /dev/absent. This accomplishs no deejay action, but endless the CPU. Continue active "top" and "iocarbon -x 1? in the added two windows.
cat /dev/aught | bzip2 -c > /dev/absent
If you see top CPU amount but low iodelay, we can annihilate CPU affairs, IRQ battles, and adulterated anamnesis. Just to be on the safe ancillary, let's analysis announcementry anyhow:
afterlifebrilliant:/ # chargeless
absolute acclimated chargeless aggregate absorbers buried
Mem: 508644 503504 5140 0 37036 48968
-/+ absorbers/accumulation: 417500 91144
Swap: 1020088 516196 503892
This server has 508644Kb of RAM. Use the agnate amount for the afterward analysis:
afterlifebrilliant:/ # dd if=/dev/hda2 bs=508644 of=/advancements/memanalysis calculation=1050
1050+0 annal in
1050+0 annal out
afterlifebrilliant:/ # md5sum /advancements/memanalysis ; md5sum /advancements/memanalysis ; md5sum /abackups/memanalysis
04762ff36b2231aac75754ab9c1a564a /advancements/memanalysis
04762ff36b2231aac75754ab9c1a564a /advancements/memanalysis
04762ff36b2231aac75754ab9c1a564a /advancements/memanalysis<