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2025-03-25 - 22:54
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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 rackdslot2.osadl.org (updated Tue Mar 25, 2025 12:45:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
137391207173,23phc2sys0-21swapper/307:06:543
150192205172,22sleep20-21swapper/207:07:272
149972204172,21sleep00-21swapper/007:07:090
149312204172,22sleep10-21swapper/107:06:191
172192790,2sleep30-21swapper/309:30:083
15517996531,5cyclictest9-21ksoftirqd/007:40:000
15517996329,4cyclictest9-21ksoftirqd/008:10:000
15517996130,4cyclictest9-21ksoftirqd/008:45:160
15517996128,7cyclictest9-21ksoftirqd/007:10:230
15517996128,4cyclictest9-21ksoftirqd/010:35:160
15517996124,6cyclictest9-21ksoftirqd/007:25:140
15517996122,6cyclictest9-21ksoftirqd/007:15:240
1551999603,17cyclictest0-21swapper/207:15:132
15517996028,5cyclictest9-21ksoftirqd/010:20:210
15517996023,10cyclictest9-21ksoftirqd/009:55:130
15517996023,10cyclictest9-21ksoftirqd/009:55:130
1551999597,9cyclictest24748-21sed08:35:142
15517995922,11cyclictest9-21ksoftirqd/010:50:120
15517995830,7cyclictest9-21ksoftirqd/010:55:150
15517995830,4cyclictest9-21ksoftirqd/011:35:150
15517995827,4cyclictest9-21ksoftirqd/011:00:220
15517995827,4cyclictest9-21ksoftirqd/010:40:150
15517995827,4cyclictest9-21ksoftirqd/008:45:000
15517995823,7cyclictest9-21ksoftirqd/010:10:110
15517995821,7cyclictest9-21ksoftirqd/010:35:010
1551999576,48cyclictest25042-21awk07:30:002
1551999576,17cyclictest22691-21sed09:40:192
15518995720,34cyclictest0-21swapper/111:43:301
15517995726,3cyclictest9-21ksoftirqd/009:35:280
15517995725,6cyclictest9-21ksoftirqd/008:25:230
15517995725,10cyclictest9-21ksoftirqd/009:05:150
15517995724,4cyclictest9-21ksoftirqd/012:10:110
1551999564,15cyclictest0-21swapper/210:20:122
15517995629,4cyclictest9-21ksoftirqd/012:30:090
15517995624,5cyclictest9-21ksoftirqd/008:20:180
15517995525,4cyclictest9-21ksoftirqd/008:00:240
15517995523,10cyclictest9-21ksoftirqd/009:24:590
10582550,4sleep233-21ksoftirqd/207:45:262
1551999546,15cyclictest31084-21missed_timers07:40:222
1551999545,9cyclictest19828-21hddtemp_smartct09:35:182
1551799546,6cyclictest3962-21dpkg08:59:590
1551799543,10cyclictest9-21ksoftirqd/008:40:000
15517995428,9cyclictest9-21ksoftirqd/010:15:180
15517995425,5cyclictest9-21ksoftirqd/007:20:240
15517995422,4cyclictest9-21ksoftirqd/011:40:170
137291540,1ptp4l2617-21memory11:35:213
1551999531,15cyclictest0-21swapper/211:15:282
15517995323,4cyclictest9-21ksoftirqd/011:50:140
1551999526,15cyclictest8882-21grep08:00:272
1551999524,8cyclictest29451-21apt-get10:00:132
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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