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2026-07-16 - 14:35
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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 Thu Jul 16, 2026 00:45:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139491233168,22phc2sys0-21swapper/319:06:223
294392230163,22sleep10-21swapper/119:09:271
292482210162,37sleep20-21swapper/219:06:592
292782205172,22sleep00-21swapper/019:07:200
1394918362,11phc2sys0-21swapper/319:10:013
29776996729,4cyclictest33-21ksoftirqd/200:30:002
29776996631,6cyclictest33-21ksoftirqd/200:20:002
139391660,1ptp4l401ktimersoftd/300:20:213
255682610,3sleep20-21swapper/221:15:122
2977699574,6cyclictest321ktimersoftd/200:00:002
139391570,1ptp4l401ktimersoftd/323:39:463
29776995626,4cyclictest33-21ksoftirqd/223:30:142
29776995623,4cyclictest33-21ksoftirqd/220:05:152
139391560,1ptp4l401ktimersoftd/323:25:113
139391560,1ptp4l401ktimersoftd/320:30:253
2977699555,8cyclictest33-21ksoftirqd/221:50:182
139391550,0ptp4l401ktimersoftd/300:00:203
139391540,1ptp4l401ktimersoftd/319:29:203
2977699534,8cyclictest33-21ksoftirqd/221:40:162
2977699533,6cyclictest33-21ksoftirqd/223:20:202
2977699526,9cyclictest33-21ksoftirqd/223:45:152
2977699525,8cyclictest33-21ksoftirqd/219:40:132
2977699516,8cyclictest33-21ksoftirqd/222:45:122
2977699516,10cyclictest33-21ksoftirqd/222:35:252
2977699515,9cyclictest33-21ksoftirqd/200:05:012
2977699515,10cyclictest33-21ksoftirqd/219:35:242
2977699514,8cyclictest33-21ksoftirqd/222:55:182
2977699514,10cyclictest33-21ksoftirqd/200:20:252
2977699511,6cyclictest33-21ksoftirqd/219:25:142
2977699505,9cyclictest33-21ksoftirqd/221:10:012
2977699505,8cyclictest33-21ksoftirqd/222:55:012
2977699496,8cyclictest33-21ksoftirqd/219:55:152
2977699496,11cyclictest33-21ksoftirqd/222:00:252
2977699495,9cyclictest33-21ksoftirqd/221:00:122
2977699494,9cyclictest33-21ksoftirqd/220:00:162
2977699494,10cyclictest33-21ksoftirqd/200:10:252
2977699493,6cyclictest33-21ksoftirqd/223:05:142
2977699493,11cyclictest33-21ksoftirqd/220:15:262
29776994916,5cyclictest33-21ksoftirqd/200:35:152
29562490,2sleep10-21swapper/121:35:171
2977699486,5cyclictest33-21ksoftirqd/220:35:002
2977699485,9cyclictest33-21ksoftirqd/223:50:182
2977699485,9cyclictest33-21ksoftirqd/219:20:282
2977699484,10cyclictest33-21ksoftirqd/221:25:132
2977699483,6cyclictest33-21ksoftirqd/219:30:142
2977699472,6cyclictest33-21ksoftirqd/219:55:012
29776994717,5cyclictest33-21ksoftirqd/221:55:192
2977699471,10cyclictest33-21ksoftirqd/221:20:292
2977699465,9cyclictest33-21ksoftirqd/223:45:012
2977699464,5cyclictest33-21ksoftirqd/219:45:222
2977699463,7cyclictest33-21ksoftirqd/220:50:192
2977699463,6cyclictest33-21ksoftirqd/219:15:172
2977699460,5cyclictest33-21ksoftirqd/222:42:512
2977699455,6cyclictest33-21ksoftirqd/221:35:192
2977699455,4cyclictest33-21ksoftirqd/221:35:002
2977699454,5cyclictest33-21ksoftirqd/220:40:212
2977699454,5cyclictest33-21ksoftirqd/220:40:212
2977699453,6cyclictest33-21ksoftirqd/200:35:002
2977699452,6cyclictest33-21ksoftirqd/220:24:592
2977699450,7cyclictest33-21ksoftirqd/221:10:182
2977699444,9cyclictest33-21ksoftirqd/222:30:192
2977699443,6cyclictest33-21ksoftirqd/222:15:262
2977699442,6cyclictest33-21ksoftirqd/223:10:272
2977699442,6cyclictest33-21ksoftirqd/222:05:122
2977699441,5cyclictest33-21ksoftirqd/200:06:112
2977699441,5cyclictest0-21swapper/220:25:142
29775994414,6cyclictest25-21ksoftirqd/119:40:011
139391440,0ptp4l401ktimersoftd/323:05:243
2977699435,9cyclictest33-21ksoftirqd/222:10:262
2977699433,5cyclictest33-21ksoftirqd/220:48:202
2977699432,8cyclictest33-21ksoftirqd/223:00:152
2977699432,6cyclictest33-21ksoftirqd/222:20:122
2977699431,10cyclictest33-21ksoftirqd/223:15:122
2977699425,9cyclictest33-21ksoftirqd/219:10:232
2977699424,9cyclictest33-21ksoftirqd/223:35:152
2977699423,5cyclictest33-21ksoftirqd/223:25:252
2977699420,6cyclictest321ktimersoftd/220:10:222
139391420,0ptp4l401ktimersoftd/319:55:033
2977699415,9cyclictest33-21ksoftirqd/220:55:262
29776994125,6cyclictest33-21ksoftirqd/221:45:222
29777994035,3cyclictest41-21ksoftirqd/300:15:003
2977699403,7cyclictest33-21ksoftirqd/222:25:182
2977599409,3cyclictest25-21ksoftirqd/120:55:011
29775994034,3cyclictest25-21ksoftirqd/120:50:001
29775993935,2cyclictest25-21ksoftirqd/122:50:011
29775993933,3cyclictest25-21ksoftirqd/119:50:011
29775993932,4cyclictest25-21ksoftirqd/123:04:061
2977599387,5cyclictest25-21ksoftirqd/119:25:231
29775993833,3cyclictest25-21ksoftirqd/123:14:591
29775993833,3cyclictest25-21ksoftirqd/122:40:191
29775993833,3cyclictest25-21ksoftirqd/122:35:261
29775993833,3cyclictest25-21ksoftirqd/121:05:211
29775993833,3cyclictest25-21ksoftirqd/119:15:001
29775993832,3cyclictest25-21ksoftirqd/120:30:001
29775993832,3cyclictest25-21ksoftirqd/100:05:141
139391380,0ptp4l401ktimersoftd/322:10:223
57898370,2rtkit-daemon0-21swapper/121:28:141
2977599377,4cyclictest25-21ksoftirqd/120:10:171
29775993734,2cyclictest25-21ksoftirqd/119:55:011
29775993732,3cyclictest25-21ksoftirqd/123:55:161
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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