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2026-06-27 - 11:48
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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 highest latencies:
System rack1slot1.osadl.org (updated Sat Jun 27, 2026 00:45:13)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
26732232157,60sleep00-21swapper/019:08:200
24732214157,26sleep30-21swapper/319:05:463
26472212173,25sleep10-21swapper/119:08:011
25162199161,24sleep20-21swapper/219:06:172
292399150,15cyclictest0-21swapper/300:31:363
289099140,12cyclictest0-21swapper/100:15:191
2923991210,1cyclictest35-21ksoftirqd/320:00:003
288799123,4cyclictest7014-21perf21:25:000
2923991110,1cyclictest35-21ksoftirqd/323:45:003
2923991110,1cyclictest35-21ksoftirqd/321:30:003
292399110,7cyclictest0-21swapper/321:15:113
291199119,1cyclictest28-21ksoftirqd/222:10:202
291199119,1cyclictest28-21ksoftirqd/219:30:002
2911991110,1cyclictest28-21ksoftirqd/219:20:002
288799119,1cyclictest9-21ksoftirqd/023:30:000
292399104,4cyclictest1982-21sendmail-mta23:28:113
291199108,1cyclictest28-21ksoftirqd/223:20:002
291199100,10cyclictest0-21swapper/219:36:002
288799109,1cyclictest9-21ksoftirqd/023:05:130
288799109,1cyclictest9-21ksoftirqd/022:30:120
288799109,1cyclictest9-21ksoftirqd/000:00:000
288799106,3cyclictest9-21ksoftirqd/022:00:200
553290,1sleep10-21swapper/122:43:571
29239991,5cyclictest3943-21diskstats21:20:133
29239990,4cyclictest0-21swapper/323:10:113
29119998,1cyclictest28-21ksoftirqd/222:45:132
29119998,1cyclictest28-21ksoftirqd/221:35:002
29119993,2cyclictest240-21systemd-journal00:11:352
29119991,6cyclictest28858-21/usr/sbin/munin00:05:202
28879999,0cyclictest9-21ksoftirqd/023:45:140
28879998,1cyclictest9-21ksoftirqd/021:55:140
28879998,1cyclictest9-21ksoftirqd/020:55:000
28879997,1cyclictest9-21ksoftirqd/023:10:120
28879994,4cyclictest0-21swapper/000:30:120
28879993,0cyclictest28161-21diskmemload00:17:390
28879990,7cyclictest8975-21ssh22:10:160
28879990,1cyclictest240-21systemd-journal21:45:160
29119988,0cyclictest28-21ksoftirqd/223:29:592
29119988,0cyclictest28-21ksoftirqd/221:35:142
29119988,0cyclictest0-21swapper/223:08:132
29119987,1cyclictest28-21ksoftirqd/223:25:002
29119987,1cyclictest28-21ksoftirqd/222:45:002
29119987,1cyclictest28-21ksoftirqd/222:20:132
29119986,2cyclictest5443-21munin-node20:06:512
29119986,1cyclictest61650irq/122-eno100:35:142
29119986,1cyclictest28-21ksoftirqd/221:00:002
29119981,6cyclictest61650irq/122-eno100:19:252
29119980,4cyclictest147832sleep223:46:062
29119980,1cyclictest17276-21kworker/2:221:25:002
28909980,4cyclictest0-21swapper/120:20:101
28879988,0cyclictest9-21ksoftirqd/022:25:140
28879988,0cyclictest9-21ksoftirqd/000:25:210
28879987,1cyclictest9-21ksoftirqd/023:55:000
28879987,1cyclictest9-21ksoftirqd/023:40:120
28879987,1cyclictest18090-21ssh22:22:540
28879986,1cyclictest9-21ksoftirqd/020:00:000
28879986,1cyclictest9-21ksoftirqd/019:55:000
28879986,1cyclictest9-21ksoftirqd/019:44:040
28879986,1cyclictest30758-21ssh00:09:400
28879986,1cyclictest17880-21cat00:35:140
28879983,4cyclictest0-21swapper/020:20:170
28879981,5cyclictest0-21swapper/022:45:180
28879980,7cyclictest1619-21ssh21:16:140
28879980,7cyclictest15540-21perl21:35:150
28879980,1cyclictest30085-21aten2.4-expect22:40:110
28879980,1cyclictest13452-21ssh21:31:570
3241270,1sleep30-21swapper/322:45:593
29239976,1cyclictest35-21ksoftirqd/322:43:183
29239976,1cyclictest28161-21diskmemload21:47:083
29239976,1cyclictest22196-21cat20:55:163
29239976,0cyclictest15772-21apt-get19:35:113
29239975,1cyclictest7315-21ssh22:08:243
29239975,1cyclictest4454-21ntpq19:10:173
29239975,1cyclictest14310-21cat19:30:153
29239975,1cyclictest12743-21ssh23:45:083
29239974,1cyclictest240-21systemd-journal19:55:003
29239973,2cyclictest240-21systemd-journal22:39:553
29239970,4cyclictest7250-21/usr/sbin/munin19:15:163
29119976,1cyclictest61650irq/122-eno121:59:432
29119976,1cyclictest61650irq/122-eno121:29:312
29119976,1cyclictest61650irq/122-eno120:30:122
29119976,1cyclictest61650irq/122-eno119:55:132
29119976,1cyclictest28-21ksoftirqd/222:55:112
29119976,1cyclictest24388-21sh00:00:132
29119976,0cyclictest61650irq/122-eno123:35:182
29119975,1cyclictest28-21ksoftirqd/220:30:002
29119973,2cyclictest240-21systemd-journal00:26:052
29119973,2cyclictest240-21systemd-journal00:24:352
29119973,1cyclictest61650irq/122-eno122:36:132
28909976,1cyclictest0-21swapper/123:00:131
28909972,3cyclictest0-21swapper/100:35:161
28909971,3cyclictest0-21swapper/123:55:001
28909971,3cyclictest0-21swapper/123:25:001
28909970,6cyclictest0-21swapper/123:35:141
28909970,6cyclictest0-21swapper/121:50:131
28909970,6cyclictest0-21swapper/119:30:151
28909970,2cyclictest14310-21chrt22:17:321
28909970,1cyclictest0-21swapper/120:55:121
28909970,1cyclictest0-21swapper/120:50:171
28909970,1cyclictest0-21swapper/119:25:131
28879977,0cyclictest9-21ksoftirqd/021:50:130
28879975,1cyclictest9-21ksoftirqd/021:10:000
28879975,1cyclictest9-21ksoftirqd/021:05:000
28879975,1cyclictest9-21ksoftirqd/020:45:120
28879975,1cyclictest9-21ksoftirqd/020:35:130
28879975,1cyclictest9-21ksoftirqd/019:15:010
28879975,1cyclictest4568-21munin-run20:20:010
28879975,1cyclictest28212-21ssh22:35:320
28879974,1cyclictest240-21systemd-journal19:30:000
28879972,3cyclictest240-21systemd-journal20:04:550
28879972,0cyclictest28161-21diskmemload00:10:390
28879970,7cyclictest0-21swapper/023:17:020
28879970,6cyclictest3159-21apt-config19:10:010
28879970,6cyclictest28161-21diskmemload23:36:100
28879970,6cyclictest28161-21diskmemload22:55:130
28879970,6cyclictest14306-21ssh22:17:320
28879970,6cyclictest13396-21/usr/sbin/munin23:00:190
28879970,6cyclictest0-21swapper/023:30:120
28879970,6cyclictest0-21swapper/022:50:110
28879970,6cyclictest0-21swapper/022:50:110
28879970,6cyclictest0-21swapper/022:05:140
28879970,6cyclictest0-21swapper/019:49:030
28879970,6cyclictest0-21swapper/019:35:120
28879970,1cyclictest9198-21ssh21:25:440
28879970,1cyclictest21671-21chrt21:43:430
28879970,1cyclictest0-21swapper/020:25:110
28879970,1cyclictest0-21swapper/019:30:130
28879970,1cyclictest0-21swapper/000:20:170
21872270,0sleep20-21swapper/223:55:312
29239965,1cyclictest996-21ssh00:11:473
29239965,1cyclictest843-21sshd22:00:043
29239965,1cyclictest24997-21ssh23:15:403
29239965,1cyclictest17332-21ssh22:20:373
29239965,1cyclictest13642-21ssh22:15:323
29239965,1cyclictest11805-21ssh00:26:243
29239964,1cyclictest35-21ksoftirqd/320:32:383
29239964,1cyclictest35-21ksoftirqd/300:20:123
29239964,1cyclictest25158-21threads21:00:193
29239964,1cyclictest24723-21ssh22:30:583
29239964,1cyclictest16782-21ssh21:35:413
29239963,1cyclictest548-21systemd-logind21:42:083
29239963,1cyclictest240-21systemd-journal20:42:143
29239962,3cyclictest450-21cstates20:10:133
29239962,0cyclictest0-21swapper/322:50:113
29239962,0cyclictest0-21swapper/322:50:113
29239961,3cyclictest26026-21apt-get21:50:103
29239961,2cyclictest0-21swapper/321:14:313
29239961,1cyclictest21026-21taskset20:54:383
29239960,3cyclictest17135-21grep23:50:143
29239960,3cyclictest0-21swapper/323:00:023
29239960,3cyclictest0-21swapper/322:26:153
29239960,3cyclictest0-21swapper/300:00:013
29239960,2cyclictest20842-21hddtemp_smartct23:55:143
29239960,2cyclictest0-21swapper/321:30:193
29239960,1cyclictest0-21swapper/319:40:193
29239960,1cyclictest0-21swapper/300:15:123
29119966,0cyclictest61650irq/122-eno123:50:572
29119966,0cyclictest61650irq/122-eno123:40:152
29119966,0cyclictest61650irq/122-eno123:32:492
29119966,0cyclictest61650irq/122-eno123:10:402
29119966,0cyclictest61650irq/122-eno122:50:282
29119966,0cyclictest61650irq/122-eno122:50:282
29119966,0cyclictest61650irq/122-eno122:05:122
29119966,0cyclictest61650irq/122-eno121:50:152
29119966,0cyclictest61650irq/122-eno121:45:032
29119966,0cyclictest61650irq/122-eno121:40:212
29119966,0cyclictest61650irq/122-eno121:10:422
29119966,0cyclictest61650irq/122-eno121:09:202
29119966,0cyclictest61650irq/122-eno120:45:102
29119966,0cyclictest61650irq/122-eno120:20:112
29119966,0cyclictest61650irq/122-eno120:10:152
29119966,0cyclictest61650irq/122-eno120:04:302
29119966,0cyclictest61650irq/122-eno119:50:452
29119966,0cyclictest61650irq/122-eno119:41:072
29119966,0cyclictest61650irq/122-eno119:31:432
29119966,0cyclictest0-21swapper/222:01:002
29119965,1cyclictest61650irq/122-eno122:25:132
29119965,1cyclictest61650irq/122-eno122:15:172
29119965,1cyclictest61650irq/122-eno121:15:032
29119965,1cyclictest61650irq/122-eno100:30:072
29119964,1cyclictest61650irq/122-eno122:30:042
29119964,1cyclictest28-21ksoftirqd/220:50:122
29119964,1cyclictest28-21ksoftirqd/220:35:132
29119960,6cyclictest0-21swapper/219:20:152
29119960,2cyclictest0-21swapper/223:00:082
28909966,0cyclictest0-21swapper/121:33:291
28909962,2cyclictest0-21swapper/119:20:111
28909961,2cyclictest0-21swapper/123:55:111
28909960,6cyclictest0-21swapper/123:40:181
28909960,6cyclictest0-21swapper/122:03:381
28909960,6cyclictest0-21swapper/121:55:531
28909960,6cyclictest0-21swapper/121:15:071
28909960,6cyclictest0-21swapper/119:50:311
28909960,5cyclictest0-21swapper/123:45:011
28909960,5cyclictest0-21swapper/120:00:111
28909960,4cyclictest0-21swapper/120:30:191
28909960,4cyclictest0-21swapper/119:35:111
28909960,3cyclictest0-21swapper/123:15:111
28909960,3cyclictest0-21swapper/123:10:111
28909960,3cyclictest0-21swapper/123:07:331
28909960,3cyclictest0-21swapper/121:35:151
28909960,3cyclictest0-21swapper/121:25:211
28909960,3cyclictest0-21swapper/120:35:171
28909960,2cyclictest0-21swapper/122:47:141
28909960,2cyclictest0-21swapper/100:33:011
28909960,1cyclictest0-21swapper/121:05:181
28909960,1cyclictest0-21swapper/120:40:131
28909960,1cyclictest0-21swapper/100:12:491
28909960,0cyclictest0-21swapper/123:27:041
28879965,1cyclictest9-21ksoftirqd/020:10:130
28879965,1cyclictest9-21ksoftirqd/000:00:000
28879964,1cyclictest9-21ksoftirqd/020:30:140
28879960,6cyclictest0-21swapper/020:40:170
28879960,6cyclictest0-21swapper/019:23:260
28879960,1cyclictest0-21swapper/023:20:140
28879960,0cyclictest0-21swapper/021:10:090
28879960,0cyclictest0-21swapper/020:57:140
29239954,1cyclictest5226-21ssh23:35:053
29239954,1cyclictest18384-21systemctl00:35:183
29239954,1cyclictest17561-21latency20:45:153
29239954,0cyclictest28161-21diskmemload00:05:323
29239953,2cyclictest10827-21ssh22:56:553
29239953,1cyclictest31903-21taskset20:05:383
29239953,1cyclictest28161-21diskmemload22:12:483
29239953,1cyclictest0-21swapper/323:20:163
29239951,1cyclictest0-21swapper/319:20:133
29239950,4cyclictest0-21swapper/323:05:053
29239950,3cyclictest0-21swapper/321:55:053
29239950,2cyclictest20498-21apt-get19:45:113
29239950,2cyclictest0-21swapper/323:30:363
29239950,1cyclictest7010-21latency_hist20:25:003
29119955,0cyclictest61650irq/122-eno120:15:142
29119955,0cyclictest61650irq/122-eno119:45:122
29119955,0cyclictest61650irq/122-eno119:15:012
29119951,3cyclictest16355-21sh20:45:002
28909951,2cyclictest0-21swapper/123:30:161
28909950,5cyclictest0-21swapper/122:31:301
28909950,5cyclictest0-21swapper/120:16:491
28909950,5cyclictest0-21swapper/120:07:551
28909950,5cyclictest0-21swapper/119:12:301
28909950,4cyclictest0-21swapper/122:20:091
28909950,4cyclictest0-21swapper/122:05:381
28909950,4cyclictest0-21swapper/121:20:111
28909950,3cyclictest0-21swapper/122:55:021
28909950,3cyclictest0-21swapper/122:35:311
28909950,3cyclictest0-21swapper/121:43:141
28909950,3cyclictest0-21swapper/100:29:591
28909950,2cyclictest0-21swapper/122:25:141
28909950,2cyclictest0-21swapper/122:10:121
28909950,2cyclictest0-21swapper/121:45:181
28909950,2cyclictest0-21swapper/121:10:591
28909950,1cyclictest0-21swapper/122:53:291
28909950,1cyclictest0-21swapper/122:53:291
28909950,1cyclictest0-21swapper/100:21:121
28909950,0cyclictest0-21swapper/119:55:201
28909950,0cyclictest0-21swapper/100:05:371
28909950,0cyclictest0-21swapper/100:00:191
28879950,1cyclictest0-21swapper/020:05:110
29239943,1cyclictest7642-21cat20:25:133
29239942,1cyclictest3699-21proc_pri20:15:193
29239941,2cyclictest26033-21apt-get21:05:113
29239941,2cyclictest0-21swapper/319:25:133
29239940,3cyclictest11872-21apt-get20:35:113
29239940,1cyclictest29201-21/usr/sbin/munin20:00:203
29119941,1cyclictest23677-21apt-get21:00:102
28909944,0cyclictest0-21swapper/120:46:271
28909941,1cyclictest0-21swapper/119:40:161
28909940,4cyclictest0-21swapper/120:25:221
28909940,2cyclictest0-21swapper/119:15:011
28909940,1cyclictest0-21swapper/120:10:141
28909940,0cyclictest0-21swapper/121:00:121
28909931,1cyclictest0-21swapper/119:45:111
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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