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2026-09-05 - 06:46
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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 100 highest latencies:
System rackdslot3.osadl.org (updated Sat Sep 05, 2026 00:45:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
114282206173,22sleep20-21swapper/219:08:132
113572206171,24sleep30-21swapper/319:07:183
112102206173,22sleep10-21swapper/119:05:311
115182205173,23sleep00-21swapper/019:09:240
1393911150,1ptp4l15205-21memory23:45:193
1393911150,1ptp4l15205-21memory23:45:193
11857996225,9cyclictest9-21ksoftirqd/023:50:220
11857996129,3cyclictest9-21ksoftirqd/022:15:110
11857996129,12cyclictest9-21ksoftirqd/023:05:150
11857996127,7cyclictest9-21ksoftirqd/019:55:180
11857996123,9cyclictest9-21ksoftirqd/021:40:200
11857996023,10cyclictest9-21ksoftirqd/023:20:250
11857996020,11cyclictest9-21ksoftirqd/022:35:230
11857995928,10cyclictest9-21ksoftirqd/019:40:160
11857995927,6cyclictest9-21ksoftirqd/020:35:000
11857995925,11cyclictest9-21ksoftirqd/020:20:200
11857995922,8cyclictest9-21ksoftirqd/021:35:170
11857995827,4cyclictest9-21ksoftirqd/019:45:150
11857995826,4cyclictest9-21ksoftirqd/019:35:010
11857995825,10cyclictest9-21ksoftirqd/023:30:150
11857995824,8cyclictest9-21ksoftirqd/000:05:000
11857995823,5cyclictest9-21ksoftirqd/020:10:270
11857995727,5cyclictest9-21ksoftirqd/021:30:230
11857995724,5cyclictest9-21ksoftirqd/022:50:230
11857995721,8cyclictest9-21ksoftirqd/020:05:260
11857995719,8cyclictest9-21ksoftirqd/019:16:320
1185999561,18cyclictest21688-21df_abs00:00:142
11857995627,8cyclictest9-21ksoftirqd/000:05:180
11857995626,7cyclictest9-21ksoftirqd/021:45:220
11857995626,10cyclictest9-21ksoftirqd/022:25:130
11857995624,4cyclictest9-21ksoftirqd/000:20:210
11857995622,5cyclictest9-21ksoftirqd/022:10:110
11857995518,5cyclictest9-21ksoftirqd/020:40:170
1185999540,19cyclictest30743-21cut23:10:182
1185999540,10cyclictest0-21swapper/219:30:242
11857995423,6cyclictest9-21ksoftirqd/021:55:140
11857995420,7cyclictest9-21ksoftirqd/023:15:090
11857995420,7cyclictest9-21ksoftirqd/023:15:090
11857995419,5cyclictest9-21ksoftirqd/022:45:130
279702530,2sleep30-21swapper/320:50:163
1185999531,11cyclictest0-21swapper/221:15:002
1185999530,19cyclictest19823-21cut19:25:182
1185799535,6cyclictest9-21ksoftirqd/020:25:160
11857995321,6cyclictest9-21ksoftirqd/000:35:150
11857995314,3cyclictest9-21ksoftirqd/020:35:140
1185999520,13cyclictest796-21latency_hist22:10:002
1185999520,12cyclictest32004-21irqrtprio19:50:182
1185999520,10cyclictest1419-21cat21:00:242
1185999511,18cyclictest11903-21date21:25:002
1185999510,17cyclictest0-21swapper/222:25:212
1185999510,11cyclictest18906-21latency_hist19:25:012
1185999510,11cyclictest15275-21latency_hist22:40:002
1185999510,11cyclictest11125-21grep20:15:142
1185999510,10cyclictest0-21swapper/222:00:132
1185799516,7cyclictest9-21ksoftirqd/020:55:210
1185799513,3cyclictest121rcu_preempt19:25:150
11857995120,10cyclictest9-21ksoftirqd/020:45:140
1185799511,9cyclictest9-21ksoftirqd/000:30:110
1185999500,19cyclictest3513-21date00:30:002
1185999500,13cyclictest14187-21latency_hist21:30:002
1185999500,12cyclictest16494-21date23:50:012
1185999500,12cyclictest16494-21date23:50:012
1185999500,11cyclictest24889-21/usr/sbin/munin23:00:132
1185999500,10cyclictest28758-21wc00:15:152
1185799506,7cyclictest9-21ksoftirqd/019:10:210
1185799506,3cyclictest9-21ksoftirqd/021:15:250
1185799505,6cyclictest9-21ksoftirqd/022:55:240
1185799503,5cyclictest11823-21awk21:25:010
11857995018,5cyclictest9-21ksoftirqd/020:50:160
1185799501,6cyclictest9-21ksoftirqd/023:40:230
1185799500,9cyclictest9-21ksoftirqd/023:25:220
1185999490,9cyclictest26217-21expr20:45:212
1185999490,10cyclictest0-21swapper/220:00:172
1185799494,5cyclictest9-21ksoftirqd/022:30:200
1185799490,6cyclictest9-21ksoftirqd/019:50:180
1185999482,9cyclictest17999-21apt20:30:092
1185999480,12cyclictest21124-21cat22:50:182
1185999480,10cyclictest0-21swapper/223:35:142
1185799485,6cyclictest9-21ksoftirqd/000:25:130
1185799484,5cyclictest17299-21ps19:20:190
1185799484,4cyclictest9-21ksoftirqd/020:20:010
1185799484,4cyclictest9-21ksoftirqd/000:15:150
11857994835,3cyclictest9-21ksoftirqd/019:30:130
1185799480,8cyclictest9-21ksoftirqd/021:10:230
1185999478,11cyclictest10830-21expr22:30:162
1185999470,11cyclictest2424-21cstates23:20:132
1185799475,8cyclictest9-21ksoftirqd/022:20:200
1185799474,6cyclictest9-21ksoftirqd/023:04:590
1185799474,3cyclictest9-21ksoftirqd/021:00:170
1185799473,7cyclictest9-21ksoftirqd/023:55:130
1185799473,10cyclictest9-21ksoftirqd/021:05:180
1185799470,5cyclictest9-21ksoftirqd/021:30:000
1185999460,11cyclictest29425-21irqrtprio19:45:182
1185799464,5cyclictest9-21ksoftirqd/023:50:010
1185799464,5cyclictest9-21ksoftirqd/023:50:010
1185799463,4cyclictest9-21ksoftirqd/023:37:420
1185999450,18cyclictest0-21swapper/220:50:072
1185999450,12cyclictest12883-21cat19:10:182
1185999450,10cyclictest19236-21expr23:55:132
1185999450,10cyclictest0-21swapper/219:40:002
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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