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2025-07-15 - 12:43
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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 rackdslot2.osadl.org (updated Tue Jul 15, 2025 00:45:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
137391234168,22phc2sys0-21swapper/319:08:033
137391234168,22phc2sys0-21swapper/319:08:023
293362207174,22sleep10-21swapper/119:07:591
293362207174,22sleep10-21swapper/119:07:591
294332205170,23sleep00-21swapper/019:09:150
294332205170,23sleep00-21swapper/019:09:140
273552205173,22sleep20-21swapper/219:05:032
273552205173,22sleep20-21swapper/219:05:022
3213821390,5sleep12978699cyclictest19:15:011
1373918363,11phc2sys0-21swapper/319:10:013
29787996130,4cyclictest33-21ksoftirqd/200:25:252
29787995831,7cyclictest33-21ksoftirqd/223:10:002
29787995828,3cyclictest33-21ksoftirqd/220:20:172
29787995827,4cyclictest33-21ksoftirqd/200:20:252
29787995825,4cyclictest33-21ksoftirqd/200:00:002
29787995820,10cyclictest33-21ksoftirqd/223:33:332
62062570,4sleep16207-21timerwakeupswit19:25:271
29787995729,4cyclictest33-21ksoftirqd/220:25:202
29787995727,4cyclictest33-21ksoftirqd/222:20:282
29787995628,7cyclictest33-21ksoftirqd/222:00:162
29787995628,3cyclictest33-21ksoftirqd/219:50:302
29787995627,4cyclictest33-21ksoftirqd/223:10:252
29787995627,4cyclictest33-21ksoftirqd/221:15:252
29787995623,9cyclictest33-21ksoftirqd/223:25:242
29787995622,5cyclictest33-21ksoftirqd/200:00:152
29787995620,5cyclictest33-21ksoftirqd/200:20:012
29787995529,7cyclictest33-21ksoftirqd/223:40:142
29787995528,4cyclictest33-21ksoftirqd/221:25:292
29787995527,7cyclictest33-21ksoftirqd/200:30:282
29787995526,3cyclictest33-21ksoftirqd/219:45:202
29787995520,6cyclictest33-21ksoftirqd/200:35:272
29787995520,6cyclictest33-21ksoftirqd/200:35:262
29787995519,6cyclictest33-21ksoftirqd/221:55:262
29787995519,4cyclictest33-21ksoftirqd/219:20:152
29787995518,5cyclictest33-21ksoftirqd/219:40:252
29787995426,3cyclictest33-21ksoftirqd/220:45:252
29787995425,10cyclictest33-21ksoftirqd/223:50:242
29787995423,6cyclictest33-21ksoftirqd/220:30:142
29787995420,8cyclictest33-21ksoftirqd/223:45:142
29787995420,7cyclictest33-21ksoftirqd/219:30:172
86792530,3sleep30-21swapper/320:40:193
2978799533,9cyclictest33-21ksoftirqd/219:55:272
29787995323,4cyclictest33-21ksoftirqd/219:10:432
29787995319,10cyclictest33-21ksoftirqd/200:10:272
2978799527,3cyclictest33-21ksoftirqd/221:30:262
29787995223,3cyclictest33-21ksoftirqd/222:56:282
29787995221,8cyclictest33-21ksoftirqd/220:50:172
29787995220,10cyclictest33-21ksoftirqd/220:45:002
29787995220,10cyclictest33-21ksoftirqd/220:05:002
29787995215,6cyclictest33-21ksoftirqd/221:40:242
29787995214,6cyclictest33-21ksoftirqd/221:35:262
29787995126,7cyclictest33-21ksoftirqd/219:25:272
29787995123,6cyclictest33-21ksoftirqd/219:15:272
29787995123,3cyclictest33-21ksoftirqd/200:05:152
29787995122,3cyclictest33-21ksoftirqd/222:41:292
29787995117,5cyclictest33-21ksoftirqd/221:45:152
29787995117,5cyclictest33-21ksoftirqd/220:35:172
29787995114,7cyclictest33-21ksoftirqd/223:40:002
2978799508,3cyclictest33-21ksoftirqd/221:05:232
2978799508,3cyclictest33-21ksoftirqd/221:05:232
2978799505,3cyclictest33-21ksoftirqd/221:00:012
29787995027,6cyclictest33-21ksoftirqd/222:55:012
29787995020,9cyclictest33-21ksoftirqd/222:10:132
29787995020,9cyclictest33-21ksoftirqd/221:00:292
29787995020,6cyclictest33-21ksoftirqd/221:10:172
137291500,1ptp4l391rcuc/323:52:463
2978799495,2cyclictest33-21ksoftirqd/222:25:202
29787994921,3cyclictest33-21ksoftirqd/222:39:192
29787994920,7cyclictest33-21ksoftirqd/221:20:152
29787994920,6cyclictest33-21ksoftirqd/220:05:152
29787994912,6cyclictest33-21ksoftirqd/222:15:272
29788994841,5cyclictest11394-21cron21:55:013
2978799487,2cyclictest33-21ksoftirqd/220:15:272
2978799487,2cyclictest33-21ksoftirqd/220:15:272
29787994820,6cyclictest33-21ksoftirqd/223:00:212
29787994819,10cyclictest33-21ksoftirqd/222:45:202
29787994816,5cyclictest33-21ksoftirqd/222:05:212
2978799476,6cyclictest33-21ksoftirqd/220:15:002
2978799474,2cyclictest33-21ksoftirqd/223:20:212
29787994716,6cyclictest33-21ksoftirqd/221:50:212
2978799454,2cyclictest33-21ksoftirqd/223:15:582
137291450,1ptp4l401ktimersoftd/321:23:523
2978799443,3cyclictest33-21ksoftirqd/219:35:182
29787994414,5cyclictest33-21ksoftirqd/222:30:142
29786994439,3cyclictest11480-21dump-pmu-power19:39:591
29786994338,3cyclictest4351-21cron19:25:011
137291430,0ptp4l401ktimersoftd/320:10:323
137291420,0ptp4l401ktimersoftd/323:45:283
137291410,0ptp4l401ktimersoftd/322:34:343
137291400,1ptp4l401ktimersoftd/322:43:083
137291400,0ptp4l401ktimersoftd/320:35:203
137291400,0ptp4l401ktimersoftd/319:40:273
29786993934,3cyclictest25-21ksoftirqd/122:20:001
29786993934,3cyclictest25-21ksoftirqd/119:20:011
29786993934,2cyclictest25-21ksoftirqd/122:55:011
137291390,0ptp4l401ktimersoftd/322:13:593
132591390,2getstats0-21swapper/300:30:093
137291380,0ptp4l401ktimersoftd/300:38:183
137291380,0ptp4l401ktimersoftd/300:38:183
29788993729,5cyclictest41-21ksoftirqd/322:55:013
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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