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2026-09-03 - 04:50
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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 rackdslot4.osadl.org (updated Thu Sep 03, 2026 00:45:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
204492204170,23sleep20-21swapper/219:05:472
204492204170,23sleep20-21swapper/219:05:472
206902202170,21sleep10-21swapper/119:08:541
206902202170,21sleep10-21swapper/119:08:541
138591202168,22phc2sys0-21swapper/319:05:333
138591202168,22phc2sys0-21swapper/319:05:333
206322198166,21sleep00-21swapper/019:08:100
206322198166,21sleep00-21swapper/019:08:100
179982870,27sleep341-21ksoftirqd/322:20:003
138491660,1ptp4l401ktimersoftd/320:16:313
138491650,1ptp4l401ktimersoftd/321:40:153
163022590,2sleep00-21swapper/023:20:190
138491580,1ptp4l401ktimersoftd/323:07:053
285892560,2sleep30-21swapper/319:25:013
21067995622,9cyclictest33-21ksoftirqd/200:35:212
276752550,2sleep327679-21unixbench_multi21:30:263
276752550,2sleep327679-21unixbench_multi21:30:263
21067995529,9cyclictest33-21ksoftirqd/219:25:182
138491550,1ptp4l401ktimersoftd/322:50:223
21067995429,9cyclictest33-21ksoftirqd/220:55:192
21067995325,8cyclictest33-21ksoftirqd/223:05:132
21067995226,9cyclictest33-21ksoftirqd/221:50:302
21067995222,7cyclictest33-21ksoftirqd/222:55:122
138491510,1ptp4l401ktimersoftd/321:26:573
21067995015,7cyclictest33-21ksoftirqd/223:52:092
21066995044,4cyclictest30328-21dump-pmu-power22:45:001
138491500,1ptp4l401ktimersoftd/323:48:063
138491490,1ptp4l401ktimersoftd/321:05:123
21067994724,9cyclictest33-21ksoftirqd/220:10:142
21067994619,8cyclictest33-21ksoftirqd/221:55:122
21067994516,7cyclictest33-21ksoftirqd/221:23:222
2106799445,5cyclictest33-21ksoftirqd/200:25:252
2106799444,8cyclictest33-21ksoftirqd/200:20:212
21067994427,9cyclictest33-21ksoftirqd/223:20:152
2106799442,5cyclictest33-21ksoftirqd/220:15:242
2106799434,6cyclictest33-21ksoftirqd/200:30:192
21067994326,9cyclictest33-21ksoftirqd/200:10:142
138491430,1ptp4l401ktimersoftd/319:15:493
138491430,0ptp4l401ktimersoftd/319:25:193
2106799426,5cyclictest33-21ksoftirqd/219:15:242
21067994237,3cyclictest18026-21latency_hist21:15:012
2106799422,5cyclictest33-21ksoftirqd/223:30:002
21067994221,9cyclictest33-21ksoftirqd/222:20:222
2106799420,8cyclictest321ktimersoftd/221:00:142
138491420,0ptp4l401ktimersoftd/321:35:233
138491420,0ptp4l401ktimersoftd/321:22:003
21067994129,11cyclictest33-21ksoftirqd/219:50:002
2106799412,5cyclictest33-21ksoftirqd/219:55:242
21067994117,5cyclictest33-21ksoftirqd/220:23:582
2106799403,5cyclictest33-21ksoftirqd/223:00:182
2106799403,3cyclictest33-21ksoftirqd/220:36:232
2106799402,7cyclictest33-21ksoftirqd/219:30:132
2106799394,5cyclictest33-21ksoftirqd/223:10:272
21067993922,10cyclictest33-21ksoftirqd/220:40:132
138491390,1ptp4l401ktimersoftd/323:29:253
21068993830,5cyclictest41-21ksoftirqd/321:00:123
2106799385,5cyclictest33-21ksoftirqd/219:38:542
2106799385,5cyclictest33-21ksoftirqd/200:15:252
2106799382,5cyclictest33-21ksoftirqd/222:50:432
2106799382,5cyclictest33-21ksoftirqd/220:00:262
2106799382,4cyclictest0-21swapper/222:00:132
2106799382,4cyclictest0-21swapper/222:00:122
2106799382,3cyclictest33-21ksoftirqd/221:45:232
21067993821,10cyclictest33-21ksoftirqd/223:45:232
21066993832,4cyclictest25-21ksoftirqd/121:43:241
138491380,0ptp4l401ktimersoftd/322:44:073
50798370,3rtkit-daemon29378-21irqstats21:35:190
2106799375,5cyclictest33-21ksoftirqd/221:40:212
2106799374,6cyclictest33-21ksoftirqd/222:05:172
2106799374,5cyclictest33-21ksoftirqd/223:28:072
2106799372,5cyclictest33-21ksoftirqd/219:50:232
2106799372,5cyclictest33-21ksoftirqd/219:50:232
2106799372,5cyclictest33-21ksoftirqd/200:05:262
21067993720,10cyclictest33-21ksoftirqd/222:45:142
2106799371,6cyclictest33-21ksoftirqd/220:31:542
21066993732,3cyclictest25-21ksoftirqd/122:25:011
21066993732,3cyclictest25-21ksoftirqd/121:25:001
21066993731,3cyclictest25-21ksoftirqd/122:00:001
21065993731,4cyclictest9-21ksoftirqd/021:23:530
21068993630,3cyclictest41-21ksoftirqd/319:55:003
21068993630,3cyclictest41-21ksoftirqd/319:55:003
21067993632,2cyclictest33-21ksoftirqd/220:45:212
21067993631,3cyclictest33-21ksoftirqd/220:05:192
2106799362,6cyclictest33-21ksoftirqd/222:10:152
2106799362,5cyclictest33-21ksoftirqd/219:14:092
2106799362,2cyclictest33-21ksoftirqd/219:40:382
21067993620,9cyclictest33-21ksoftirqd/221:25:192
2106799360,5cyclictest33-21ksoftirqd/223:40:172
21066993630,4cyclictest25-21ksoftirqd/122:05:101
21066993630,4cyclictest25-21ksoftirqd/119:24:341
21066993630,4cyclictest25-21ksoftirqd/100:27:191
21066993630,3cyclictest25-21ksoftirqd/121:40:011
21066993629,4cyclictest25-21ksoftirqd/123:36:081
21065993631,3cyclictest9-21ksoftirqd/022:45:080
21065993630,4cyclictest9-21ksoftirqd/022:25:000
21065993630,4cyclictest25327-21cron22:35:000
21068993529,4cyclictest41-21ksoftirqd/323:50:503
21068993529,4cyclictest41-21ksoftirqd/323:36:023
21068993517,15cyclictest15581-21cron00:25:003
2106799353,5cyclictest33-21ksoftirqd/222:16:202
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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