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2026-06-04 - 03:44
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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 rackdslot1.osadl.org (updated Thu Jun 04, 2026 00:45:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1930221620,5sleep048999cyclictest22:55:130
493996834,4cyclictest33-21ksoftirqd/222:00:162
493996733,10cyclictest33-21ksoftirqd/223:05:232
493996725,6cyclictest33-21ksoftirqd/221:30:012
493996534,9cyclictest33-21ksoftirqd/223:20:012
493996534,6cyclictest33-21ksoftirqd/222:05:242
493996532,4cyclictest33-21ksoftirqd/220:10:212
493996532,4cyclictest33-21ksoftirqd/220:10:202
493996531,6cyclictest33-21ksoftirqd/222:20:142
493996529,5cyclictest33-21ksoftirqd/222:55:012
134491650,4ptp4l28369-21diskstats22:05:150
493996432,3cyclictest33-21ksoftirqd/200:10:212
493996432,3cyclictest33-21ksoftirqd/200:10:212
493996330,5cyclictest33-21ksoftirqd/220:40:142
493996327,5cyclictest33-21ksoftirqd/200:05:172
206772630,7sleep20-21swapper/222:55:272
134491630,30ptp4l25-21ksoftirqd/122:35:161
493996229,4cyclictest33-21ksoftirqd/220:00:002
80802610,3sleep08083-21ntp_kernel_pll_19:30:170
493996134,6cyclictest33-21ksoftirqd/219:54:592
493996127,4cyclictest33-21ksoftirqd/222:40:012
493996122,6cyclictest33-21ksoftirqd/219:30:202
493996038,8cyclictest33-21ksoftirqd/219:40:152
493996034,6cyclictest33-21ksoftirqd/223:45:162
493996032,6cyclictest33-21ksoftirqd/200:30:272
493996031,3cyclictest33-21ksoftirqd/219:20:202
493996030,9cyclictest33-21ksoftirqd/200:25:272
493996029,5cyclictest33-21ksoftirqd/219:26:052
493995930,4cyclictest33-21ksoftirqd/219:10:132
493995928,5cyclictest33-21ksoftirqd/221:00:132
493995926,6cyclictest33-21ksoftirqd/222:10:142
493995926,10cyclictest33-21ksoftirqd/200:20:252
493995924,5cyclictest33-21ksoftirqd/200:15:242
493995924,5cyclictest33-21ksoftirqd/200:00:122
493995923,6cyclictest33-21ksoftirqd/223:20:192
493995832,3cyclictest33-21ksoftirqd/221:25:002
493995832,3cyclictest33-21ksoftirqd/221:25:002
493995827,5cyclictest33-21ksoftirqd/220:50:002
493995819,4cyclictest33-21ksoftirqd/221:05:542
134491580,4ptp4l0-21swapper/023:40:280
493995728,3cyclictest33-21ksoftirqd/223:30:152
493995721,5cyclictest33-21ksoftirqd/223:04:412
49099575,6cyclictest19268-21df22:55:131
134491570,4ptp4l0-21swapper/021:02:150
134491570,3ptp4l0-21swapper/319:22:023
493995631,6cyclictest33-21ksoftirqd/219:40:002
49399562,26cyclictest0-21swapper/222:28:502
493995622,5cyclictest33-21ksoftirqd/220:30:222
49099563,7cyclictest0-21swapper/122:40:271
134491560,3ptp4l0-21swapper/223:10:012
134491560,2ptp4l0-21swapper/321:36:283
493995528,9cyclictest33-21ksoftirqd/223:40:222
493995527,6cyclictest33-21ksoftirqd/220:50:182
493995527,6cyclictest33-21ksoftirqd/220:50:182
493995523,6cyclictest33-21ksoftirqd/222:19:592
49099554,6cyclictest25-21ksoftirqd/121:55:241
134491550,3ptp4l0-21swapper/121:10:211
134491550,3ptp4l0-21swapper/120:50:181
134491550,3ptp4l0-21swapper/120:50:181
134491550,3ptp4l0-21swapper/023:30:360
493995426,5cyclictest33-21ksoftirqd/221:30:162
493995426,10cyclictest33-21ksoftirqd/222:40:152
49099545,6cyclictest0-21swapper/100:25:131
134491540,3ptp4l0-21swapper/123:25:211
134491540,3ptp4l0-21swapper/023:13:200
493995329,6cyclictest33-21ksoftirqd/221:45:142
493995315,3cyclictest33-21ksoftirqd/221:19:032
49099537,6cyclictest0-21swapper/122:19:381
49099536,7cyclictest0-21swapper/119:20:131
49099534,13cyclictest0-21swapper/123:02:551
134491530,4ptp4l0-21swapper/000:05:010
134491530,20ptp4l0-21swapper/323:03:103
134491530,10ptp4l31976-21ls19:05:260
49399523,7cyclictest121rcu_preempt20:05:582
493995225,3cyclictest33-21ksoftirqd/223:35:162
493995222,5cyclictest33-21ksoftirqd/222:50:012
49099527,6cyclictest0-21swapper/100:18:251
49099527,5cyclictest0-21swapper/121:46:121
134691520,13getstats9-21ksoftirqd/019:44:530
134491520,5ptp4l0-21swapper/119:09:191
134491520,3ptp4l0-21swapper/022:49:090
134491520,17ptp4l0-21swapper/121:42:411
49399514,2cyclictest33-21ksoftirqd/220:39:592
49399513,6cyclictest33-21ksoftirqd/219:45:362
493995122,6cyclictest33-21ksoftirqd/223:50:262
493995121,4cyclictest33-21ksoftirqd/220:21:422
493995120,3cyclictest33-21ksoftirqd/200:38:182
49099512,5cyclictest21911-21cut21:50:191
490995120,8cyclictest25-21ksoftirqd/100:35:151
134491510,4ptp4l0-21swapper/023:03:590
134491510,4ptp4l0-21swapper/019:11:510
49399504,5cyclictest33-21ksoftirqd/220:27:182
49399502,5cyclictest33-21ksoftirqd/221:55:272
49399501,7cyclictest33-21ksoftirqd/221:54:022
49399500,8cyclictest15560-21sort20:00:002
49099503,6cyclictest25-21ksoftirqd/123:55:131
134691500,14getstats9-21ksoftirqd/020:51:490
134691500,14getstats9-21ksoftirqd/020:51:490
134491500,4ptp4l0-21swapper/119:40:081
134491500,4ptp4l0-21swapper/021:58:290
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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