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2026-08-18 - 01:46
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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 rack1slot1.osadl.org (updated Tue Aug 18, 2026 00:45:13)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
67162211156,24sleep00-21swapper/019:09:090
67822202161,27sleep20-21swapper/219:09:592
64642202160,24sleep10-21swapper/119:05:521
65952200161,25sleep30-21swapper/319:07:343
262892590,0sleep30-21swapper/323:16:423
104882590,0sleep30-21swapper/321:24:353
104882590,0sleep30-21swapper/321:24:353
250322560,0sleep10-21swapper/119:45:131
686699190,12cyclictest0-21swapper/021:00:140
688099184,12cyclictest28-21ksoftirqd/221:00:142
6880991716,1cyclictest28-21ksoftirqd/223:00:212
6880991615,1cyclictest28-21ksoftirqd/221:20:162
6880991615,1cyclictest28-21ksoftirqd/221:20:152
6880991615,1cyclictest28-21ksoftirqd/219:20:012
6872991612,4cyclictest56-21kworker/1:120:59:021
6880991515,0cyclictest28-21ksoftirqd/200:25:142
6880991514,1cyclictest28-21ksoftirqd/219:15:002
6880991512,1cyclictest28-21ksoftirqd/221:50:002
6880991413,1cyclictest28-21ksoftirqd/220:30:212
6880991412,1cyclictest28-21ksoftirqd/222:15:112
6885991311,1cyclictest35-21ksoftirqd/322:00:003
6880991312,1cyclictest28-21ksoftirqd/220:55:152
6880991311,1cyclictest28-21ksoftirqd/220:10:132
6880991311,1cyclictest28-21ksoftirqd/220:10:002
6880991311,1cyclictest28-21ksoftirqd/219:45:002
687299139,4cyclictest21-21ksoftirqd/121:32:351
687299139,4cyclictest21-21ksoftirqd/121:10:141
687299130,1cyclictest0-21swapper/121:00:131
6866991311,1cyclictest9-21ksoftirqd/023:20:000
688099122,9cyclictest17835-21apt-get22:20:132
6880991211,1cyclictest28-21ksoftirqd/221:55:192
6880991211,1cyclictest28-21ksoftirqd/220:45:002
6880991211,1cyclictest28-21ksoftirqd/220:25:152
6880991211,1cyclictest28-21ksoftirqd/200:05:232
6880991210,1cyclictest28-21ksoftirqd/223:45:172
6880991210,1cyclictest28-21ksoftirqd/222:56:322
6880991210,1cyclictest28-21ksoftirqd/222:45:122
6880991210,1cyclictest28-21ksoftirqd/220:20:002
6880991210,1cyclictest28-21ksoftirqd/219:19:592
688099121,10cyclictest0-21swapper/223:59:192
687299129,0cyclictest0-21swapper/122:17:221
686699120,11cyclictest0-21swapper/021:15:200
688099119,1cyclictest28-21ksoftirqd/223:35:202
688099119,1cyclictest28-21ksoftirqd/223:25:182
688099119,1cyclictest28-21ksoftirqd/223:10:002
688099119,1cyclictest28-21ksoftirqd/222:50:002
688099119,1cyclictest28-21ksoftirqd/222:30:152
688099119,1cyclictest28-21ksoftirqd/222:10:112
688099119,1cyclictest28-21ksoftirqd/221:25:232
688099119,1cyclictest28-21ksoftirqd/221:20:002
688099119,1cyclictest28-21ksoftirqd/221:10:142
688099119,1cyclictest28-21ksoftirqd/221:10:002
688099119,1cyclictest28-21ksoftirqd/220:45:002
688099119,1cyclictest28-21ksoftirqd/200:35:172
688099119,1cyclictest28-21ksoftirqd/200:30:132
688099119,1cyclictest28-21ksoftirqd/200:00:112
6880991110,1cyclictest28-21ksoftirqd/223:15:152
6880991110,1cyclictest28-21ksoftirqd/222:40:172
6880991110,1cyclictest28-21ksoftirqd/222:39:452
6880991110,1cyclictest28-21ksoftirqd/222:25:122
6880991110,1cyclictest28-21ksoftirqd/221:45:002
6880991110,1cyclictest28-21ksoftirqd/221:35:162
6880991110,1cyclictest28-21ksoftirqd/221:30:152
6880991110,1cyclictest28-21ksoftirqd/219:30:012
6880991110,1cyclictest28-21ksoftirqd/200:23:352
6880991110,1cyclictest28-21ksoftirqd/200:10:122
686699112,4cyclictest13397-21latency_hist23:00:000
688599100,2cyclictest11117-21ssh21:25:133
688099109,1cyclictest28-21ksoftirqd/223:10:132
688099109,1cyclictest28-21ksoftirqd/222:00:162
688099109,1cyclictest28-21ksoftirqd/221:50:112
688099109,1cyclictest28-21ksoftirqd/219:55:212
688099108,1cyclictest28-21ksoftirqd/223:50:122
688099108,1cyclictest28-21ksoftirqd/223:40:162
688099105,4cyclictest28-21ksoftirqd/223:31:262
6880991010,0cyclictest28-21ksoftirqd/223:20:192
6880991010,0cyclictest28-21ksoftirqd/200:15:042
687299106,4cyclictest56-21kworker/1:123:46:581
687299106,4cyclictest56-21kworker/1:121:21:231
687299106,4cyclictest56-21kworker/1:121:21:231
6866991010,0cyclictest9-21ksoftirqd/022:24:170
68859997,1cyclictest35-21ksoftirqd/320:35:013
68859990,8cyclictest17648-21cat22:20:013
68809998,1cyclictest28-21ksoftirqd/222:05:192
68809997,1cyclictest28-21ksoftirqd/220:35:202
68809997,1cyclictest28-21ksoftirqd/219:55:002
68809997,1cyclictest28-21ksoftirqd/219:50:002
68669998,1cyclictest9-21ksoftirqd/023:05:120
68669991,4cyclictest3397-21perf22:00:000
68859988,0cyclictest35-21ksoftirqd/322:38:273
68859986,1cyclictest11301-21snmpd22:34:023
68859986,1cyclictest11301-21snmpd22:26:533
68859986,1cyclictest11301-21snmpd00:13:143
68859983,3cyclictest240-21systemd-journal22:10:003
68859980,6cyclictest0-21swapper/320:20:133
68859980,5cyclictest0-21swapper/323:45:193
68859980,3cyclictest0-21swapper/323:54:473
68859980,3cyclictest0-21swapper/322:46:263
68859980,3cyclictest0-21swapper/321:30:113
68859980,2cyclictest5670-21apt-get23:35:123
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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