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2026-11-10 - 22:18
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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 rackdslot3.osadl.org (updated Tue Nov 10, 2026 12:45:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139491208174,23phc2sys0-21swapper/307:08:163
102362205172,22sleep10-21swapper/107:06:571
104492203170,22sleep00-21swapper/007:09:420
101822202169,22sleep20-21swapper/207:06:152
2810221420,5sleep11076599cyclictest11:20:181
139391730,1ptp4l401ktimersoftd/311:45:333
139391710,5ptp4l1076799cyclictest09:37:203
10764996428,5cyclictest9-21ksoftirqd/011:10:000
10764996228,11cyclictest9-21ksoftirqd/012:30:250
10764996024,4cyclictest9-21ksoftirqd/011:20:230
10764996020,4cyclictest9-21ksoftirqd/009:10:150
10764995928,3cyclictest9-21ksoftirqd/007:20:010
10764995924,3cyclictest9-21ksoftirqd/009:15:250
10764995923,4cyclictest9-21ksoftirqd/011:00:180
10764995923,4cyclictest9-21ksoftirqd/009:55:240
10764995830,3cyclictest9-21ksoftirqd/008:40:010
10764995824,5cyclictest9-21ksoftirqd/011:50:210
10764995823,4cyclictest9-21ksoftirqd/010:10:160
10764995822,3cyclictest9-21ksoftirqd/010:00:150
10764995820,4cyclictest9-21ksoftirqd/009:01:580
10764995732,6cyclictest9-21ksoftirqd/010:15:000
10764995722,4cyclictest9-21ksoftirqd/010:35:230
10764995722,4cyclictest9-21ksoftirqd/010:35:230
10764995710,3cyclictest9-21ksoftirqd/009:45:220
139391560,1ptp4l401ktimersoftd/310:25:193
139391560,1ptp4l401ktimersoftd/307:23:443
10764995610,3cyclictest9-21ksoftirqd/010:30:210
10764995529,3cyclictest9-21ksoftirqd/010:25:130
10764995521,4cyclictest9-21ksoftirqd/012:26:200
139391530,1ptp4l401ktimersoftd/311:00:253
1076499535,7cyclictest9-21ksoftirqd/008:10:000
10764995320,6cyclictest9-21ksoftirqd/007:55:010
10764995220,4cyclictest9-21ksoftirqd/012:03:130
10764995219,6cyclictest9-21ksoftirqd/009:30:140
10764995216,5cyclictest9-21ksoftirqd/012:00:000
1076499516,3cyclictest9-21ksoftirqd/011:15:160
1076499515,7cyclictest9-21ksoftirqd/007:29:590
1076499514,7cyclictest9-21ksoftirqd/009:05:230
10764995120,6cyclictest9-21ksoftirqd/009:50:230
1076499507,6cyclictest9-21ksoftirqd/010:45:240
1076499507,4cyclictest9-21ksoftirqd/011:40:230
1076499507,3cyclictest9-21ksoftirqd/012:20:220
1076499507,3cyclictest9-21ksoftirqd/012:10:120
1076499505,5cyclictest9-21ksoftirqd/012:15:160
10764995019,4cyclictest9-21ksoftirqd/011:38:130
10764995016,6cyclictest9-21ksoftirqd/009:35:000
139391490,0ptp4l401ktimersoftd/311:20:213
1076499498,6cyclictest9-21ksoftirqd/009:25:260
1076499496,6cyclictest9-21ksoftirqd/010:05:210
1076499495,2cyclictest9-21ksoftirqd/011:25:150
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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