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2024-11-22 - 11:39
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Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Characteristics of the 50 highest latencies:
System rackbslot1.osadl.org (updated Thu Nov 21, 2024 12:44:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
33359312207183,14sleep00-21swapper/007:06:300
33359312207183,14sleep00-21swapper/007:06:300
33361142199175,14sleep20-21swapper/207:08:452
33361142199175,14sleep20-21swapper/207:08:452
33361732198167,22sleep10-21swapper/107:09:321
33361732198167,22sleep10-21swapper/107:09:321
33359232193164,19sleep30-21swapper/307:06:253
33359232193164,19sleep30-21swapper/307:06:253
34349192610,1chrt3434914-21apache_accesses09:00:113
333637199591,2cyclictest3451070-21ChromeDriver15:20:430
3336371995551,3cyclictest3493621-21kworker/u8:3+flush-179:011:45:190
3336372995442,11cyclictest3434168-21/usr/share/muni09:00:051
3336371995346,5cyclictest3546731-21/usr/share/muni11:10:080
3336371995346,5cyclictest3546731-21/usr/share/muni11:10:080
3336371995146,4cyclictest3621341-31munin-graph12:31:270
34941602490,1chrt3494161-21/usr/share/muni10:10:011
3336372994944,3cyclictest3340767-21cp07:15:001
3336371994944,4cyclictest3403025-21kworker/u8:2+flush-179:008:50:080
3336374994842,5cyclictest3381624-21/usr/share/muni08:00:013
3336373994834,13cyclictest3350480-21kworker/2:2+pm07:42:412
3336371994843,4cyclictest3368618-21kworker/u8:0+flush-179:009:00:120
3336374994633,12cyclictest2971889-1kworker/3:0H+kblockd10:19:083
3336373994640,4cyclictest3476572-21/usr/share/muni09:50:182
3336371994642,3cyclictest3476253-21kworker/u8:4+events_unbound11:00:300
3336371994642,2cyclictest3456122-21kworker/u8:2+events_unbound10:05:200
3336374994538,5cyclictest3416531-21/usr/share/muni08:40:083
3336374994534,9cyclictest2971889-1kworker/3:0H+kblockd11:25:033
3336372994533,11cyclictest3394670-1kworker/1:2H+kblockd10:25:531
3336373994439,3cyclictest3394655-21/usr/share/muni08:15:092
3336372994438,5cyclictest3451991-21/usr/share/muni09:20:091
3336372994429,14cyclictest3367715-31munin-graph07:40:501
3336371994441,2cyclictest3359022-21kworker/u8:4+flush-179:008:45:310
3336374994337,4cyclictest3458834-21latency_hist09:30:003
3336374994336,5cyclictest3538042-21/usr/share/muni11:00:143
3336373994329,13cyclictest3350480-21kworker/2:2+pm07:30:002
3336374994237,4cyclictest3456088-21kworker/3:0+pm10:13:583
3336371994236,4cyclictest3359022-21kworker/u8:4+events_unbound08:40:010
3336374994134,6cyclictest3603512-21kworker/3:2+pm12:19:033
3336372994137,3cyclictest3520371-21/usr/share/muni10:40:001
3336372994135,4cyclictest3533658-21/usr/share/muni10:55:091
3336372994130,10cyclictest2854065-21isc-net-000007:26:371
3336371994136,4cyclictest3456122-21kworker/u8:2+flush-179:009:50:300
3336371994132,7cyclictest3533425-21munin-update10:55:030
3336374994030,9cyclictest3439434-21kworker/3:2+pm09:09:033
3336374994029,1cyclictest1276-21snmpd08:33:023
3336373994038,1cyclictest3541888-21kworker/2:1+pm11:45:232
3336373994038,1cyclictest3459101-21kworker/2:0+pm09:57:112
3336373994038,1cyclictest3402983-21kworker/2:1+pm09:29:252
3336373994038,1cyclictest3376683-21kworker/2:0+pm08:00:012
3336373994037,2cyclictest3541888-21kworker/2:1+pm12:12:532
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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