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2026-03-23 - 19:23
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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 Mon Mar 23, 2026 12:45:20)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
149662247172,24sleep00-21swapper/007:09:490
148972211148,22sleep30-21swapper/307:08:563
147312199162,24sleep10-21swapper/107:06:441
149482198158,27sleep20-21swapper/207:09:352
63092610,0sleep30-21swapper/310:29:283
15069991713,0cyclictest0-21swapper/111:15:071
15076991615,1cyclictest28-21ksoftirqd/212:00:002
15076991614,1cyclictest28-21ksoftirqd/209:45:012
15076991513,1cyclictest28-21ksoftirqd/211:35:002
15069991511,4cyclictest21-21ksoftirqd/111:59:511
15069991511,4cyclictest21-21ksoftirqd/110:41:301
15069991511,4cyclictest21-21ksoftirqd/109:45:301
208202140,0sleep10-21swapper/110:46:561
15076991413,1cyclictest28-21ksoftirqd/208:55:002
15069991411,3cyclictest21-21ksoftirqd/107:42:221
15076991312,1cyclictest28-21ksoftirqd/210:25:132
15076991312,1cyclictest28-21ksoftirqd/209:50:002
15076991312,1cyclictest28-21ksoftirqd/207:30:002
15076991311,1cyclictest28-21ksoftirqd/212:25:142
15076991311,1cyclictest28-21ksoftirqd/211:10:112
15076991311,1cyclictest28-21ksoftirqd/209:30:192
15076991311,1cyclictest28-21ksoftirqd/209:30:192
1507699130,12cyclictest0-21swapper/210:18:402
15069991310,0cyclictest0-21swapper/112:22:151
1506999130,0cyclictest111rcu_preempt09:56:421
15076991211,1cyclictest28-21ksoftirqd/212:35:182
15076991211,1cyclictest28-21ksoftirqd/212:05:142
15076991211,1cyclictest28-21ksoftirqd/212:05:002
15076991211,1cyclictest28-21ksoftirqd/211:15:192
15076991211,1cyclictest28-21ksoftirqd/209:05:192
15076991210,2cyclictest28-21ksoftirqd/209:14:002
15076991210,1cyclictest28-21ksoftirqd/211:45:002
15076991210,1cyclictest28-21ksoftirqd/209:40:002
15076991210,1cyclictest28-21ksoftirqd/208:40:012
1507699120,11cyclictest0-21swapper/208:15:192
1506999120,12cyclictest0-21swapper/112:33:261
1506999120,0cyclictest0-21swapper/111:48:391
1506999120,0cyclictest0-21swapper/111:37:301
1506999120,0cyclictest0-21swapper/108:15:561
1508399119,1cyclictest35-21ksoftirqd/309:05:003
1507699119,1cyclictest28-21ksoftirqd/211:50:002
1507699119,1cyclictest28-21ksoftirqd/211:39:592
1507699119,1cyclictest28-21ksoftirqd/210:55:152
1507699119,1cyclictest28-21ksoftirqd/210:50:012
1507699119,1cyclictest28-21ksoftirqd/210:00:142
1507699119,1cyclictest28-21ksoftirqd/209:50:122
1507699119,1cyclictest28-21ksoftirqd/207:15:012
15076991110,1cyclictest28-21ksoftirqd/211:50:022
15076991110,1cyclictest28-21ksoftirqd/210:39:492
15076991110,1cyclictest28-21ksoftirqd/210:08:312
15076991110,1cyclictest28-21ksoftirqd/209:25:192
1507699110,10cyclictest0-21swapper/210:11:482
1506999110,11cyclictest0-21swapper/109:00:431
1506999110,11cyclictest0-21swapper/108:49:311
1506999110,11cyclictest0-21swapper/108:27:101
1506999110,11cyclictest0-21swapper/107:31:091
1506999110,0cyclictest0-21swapper/112:11:031
1506999110,0cyclictest0-21swapper/110:19:061
1506899119,1cyclictest9-21ksoftirqd/008:45:000
1506899112,4cyclictest32499-21perf07:45:000
86992100,7sleep335-21ksoftirqd/309:50:153
1508399100,0cyclictest0-21swapper/312:11:103
1507699109,1cyclictest28-21ksoftirqd/209:15:202
1507699109,1cyclictest28-21ksoftirqd/208:45:002
1507699108,1cyclictest28-21ksoftirqd/212:20:002
1507699108,1cyclictest28-21ksoftirqd/212:15:012
1507699108,1cyclictest28-21ksoftirqd/210:35:002
1507699108,1cyclictest28-21ksoftirqd/209:00:002
1507699108,1cyclictest28-21ksoftirqd/208:05:002
1507699108,1cyclictest28-21ksoftirqd/207:54:592
1507699108,1cyclictest28-21ksoftirqd/207:15:142
15076991010,0cyclictest28-21ksoftirqd/210:40:492
15076991010,0cyclictest28-21ksoftirqd/209:59:592
1506999109,1cyclictest21-21ksoftirqd/109:40:201
1506999108,1cyclictest21-21ksoftirqd/110:01:521
1506999108,1cyclictest21-21ksoftirqd/109:29:001
15069991010,0cyclictest111rcu_preempt11:50:011
1506999100,6cyclictest0-21swapper/111:00:101
150839997,1cyclictest35-21ksoftirqd/309:40:003
150839990,2cyclictest0-21swapper/311:40:123
150769999,0cyclictest28-21ksoftirqd/208:20:152
150769998,1cyclictest28-21ksoftirqd/212:30:102
150769998,1cyclictest28-21ksoftirqd/212:20:102
150769998,1cyclictest28-21ksoftirqd/209:00:132
150769998,1cyclictest28-21ksoftirqd/207:45:142
150769997,1cyclictest28-21ksoftirqd/210:50:192
150769997,1cyclictest28-21ksoftirqd/207:45:002
150769997,1cyclictest28-21ksoftirqd/207:40:002
150769996,2cyclictest28-21ksoftirqd/210:20:162
150769996,1cyclictest28-21ksoftirqd/211:30:012
150699999,0cyclictest21-21ksoftirqd/109:50:141
150699999,0cyclictest21-21ksoftirqd/109:20:121
150699999,0cyclictest111rcu_preempt08:35:191
150699998,1cyclictest21-21ksoftirqd/111:32:101
150699998,1cyclictest21-21ksoftirqd/111:20:191
150699998,1cyclictest21-21ksoftirqd/111:11:351
150699998,1cyclictest21-21ksoftirqd/111:09:481
150699998,1cyclictest21-21ksoftirqd/110:08:271
150699998,1cyclictest21-21ksoftirqd/108:31:521
150699997,1cyclictest21-21ksoftirqd/110:30:121
150699997,1cyclictest111rcu_preempt10:55:121
150699997,1cyclictest111rcu_preempt10:35:161
150699991,8cyclictest21-21ksoftirqd/109:15:051
150699990,8cyclictest21-21ksoftirqd/112:05:121
150699990,8cyclictest21-21ksoftirqd/108:55:131
150699990,8cyclictest111rcu_preempt10:21:311
150699990,8cyclictest111rcu_preempt09:11:231
150699990,7cyclictest0-21swapper/109:35:151
150699990,1cyclictest111rcu_preempt09:30:121
150699990,1cyclictest111rcu_preempt09:30:111
150689990,7cyclictest946-21wc09:40:150
2646280,0sleep32669-21perf10:25:003
150839987,1cyclictest35-21ksoftirqd/309:25:003
150839987,1cyclictest35-21ksoftirqd/308:40:273
150839986,1cyclictest707-21snmpd12:28:283
150839986,1cyclictest707-21snmpd10:38:133
150839986,1cyclictest707-21snmpd09:25:343
150839986,1cyclictest707-21snmpd08:55:393
150839986,1cyclictest707-21snmpd08:51:423
150839986,1cyclictest707-21snmpd07:55:473
150839981,4cyclictest8113-21diskmemload12:20:093
150769988,0cyclictest28-21ksoftirqd/208:45:132
150769988,0cyclictest28-21ksoftirqd/208:26:272
150769987,1cyclictest28-21ksoftirqd/211:25:002
150769986,1cyclictest61650irq/122-eno111:05:152
150769986,1cyclictest28-21ksoftirqd/211:00:192
150769986,1cyclictest28-21ksoftirqd/209:24:212
150769986,1cyclictest28-21ksoftirqd/208:10:002
150769986,1cyclictest28-21ksoftirqd/208:00:012
150769986,1cyclictest28-21ksoftirqd/207:30:132
150699988,0cyclictest21-21ksoftirqd/112:36:121
150699988,0cyclictest21-21ksoftirqd/112:25:581
150699988,0cyclictest21-21ksoftirqd/111:25:061
150699988,0cyclictest21-21ksoftirqd/110:50:381
150699988,0cyclictest21-21ksoftirqd/110:25:061
150699988,0cyclictest21-21ksoftirqd/110:10:161
150699988,0cyclictest21-21ksoftirqd/108:40:021
150699988,0cyclictest21-21ksoftirqd/108:20:141
150699988,0cyclictest21-21ksoftirqd/108:13:261
150699988,0cyclictest21-21ksoftirqd/108:06:351
150699988,0cyclictest21-21ksoftirqd/108:00:061
150699988,0cyclictest21-21ksoftirqd/107:50:221
150699988,0cyclictest21-21ksoftirqd/107:24:491
150699988,0cyclictest21-21ksoftirqd/107:16:461
150699986,1cyclictest111rcu_preempt08:50:191
150699984,3cyclictest111rcu_preempt12:00:111
150699980,8cyclictest0-21swapper/111:40:201
150699980,3cyclictest0-21swapper/107:25:121
150699980,0cyclictest0-21swapper/112:15:121
150689988,0cyclictest9-21ksoftirqd/011:30:000
150689987,1cyclictest9-21ksoftirqd/011:35:010
150689986,1cyclictest9-21ksoftirqd/009:55:120
150689986,1cyclictest707-21snmpd11:16:050
150689983,1cyclictest21503-21ntp_states12:10:170
150689983,1cyclictest16981-21/usr/sbin/munin08:20:150
150689981,6cyclictest21977-21ssh10:07:050
150689981,4cyclictest0-21swapper/010:10:120
150689980,7cyclictest872-21ssh11:03:440
150689980,7cyclictest3761-21cat12:30:120
150689980,7cyclictest30295-21ssh12:21:290
150689980,4cyclictest29970-21sed11:00:000
150689980,4cyclictest0-21swapper/007:20:100
150839977,0cyclictest35-21ksoftirqd/310:55:003
150839976,1cyclictest707-21snmpd11:28:023
150839976,1cyclictest707-21snmpd11:14:353
150839976,1cyclictest707-21snmpd09:16:133
150839976,1cyclictest35-21ksoftirqd/311:50:003
150839976,1cyclictest35-21ksoftirqd/311:35:003
150839976,1cyclictest35-21ksoftirqd/309:50:003
150839976,1cyclictest35-21ksoftirqd/308:25:103
150839976,1cyclictest35-21ksoftirqd/307:45:013
150839976,1cyclictest35-21ksoftirqd/307:40:003
150839975,1cyclictest707-21snmpd11:52:513
150839975,1cyclictest707-21snmpd09:09:173
150839975,1cyclictest707-21snmpd07:45:583
150839975,1cyclictest2495-21ssh09:42:113
150839975,1cyclictest20939-21ssh10:47:153
150839972,4cyclictest0-21swapper/312:30:113
150839972,3cyclictest8113-21diskmemload11:15:073
150839971,5cyclictest707-21snmpd10:55:473
150839971,3cyclictest8113-21diskmemload09:58:543
150769977,0cyclictest28-21ksoftirqd/208:10:142
150769976,1cyclictest61650irq/122-eno107:20:142
150769973,3cyclictest28-21ksoftirqd/208:30:112
150699977,0cyclictest21-21ksoftirqd/107:10:141
150699977,0cyclictest111rcu_preempt09:05:141
150699977,0cyclictest0-21swapper/107:58:011
150699970,1cyclictest0-21swapper/107:36:011
150689976,1cyclictest9-21ksoftirqd/007:10:090
150689975,1cyclictest9-21ksoftirqd/009:25:130
150689975,1cyclictest707-21snmpd09:23:230
150689975,1cyclictest707-21snmpd07:50:160
150689975,1cyclictest707-21snmpd07:47:070
150689973,3cyclictest8113-21diskmemload09:51:000
150689973,3cyclictest19100-21ssh10:45:130
150689972,4cyclictest21450-21cron08:30:000
150689972,1cyclictest707-21snmpd08:10:160
150689971,6cyclictest0-21swapper/012:00:240
150689971,5cyclictest29299-21ssh11:40:130
150689970,6cyclictest8993-21sshd10:31:220
150689970,6cyclictest31926-21apt-get12:25:100
150689970,6cyclictest31490-21ssh10:20:060
150689970,6cyclictest28848-21ssh09:35:130
150689970,6cyclictest2866-21ntp_states11:05:180
150689970,6cyclictest14622-21ssh10:40:110
150689970,6cyclictest13590-21ssh09:15:190
150689970,6cyclictest0-21swapper/008:45:120
150689970,5cyclictest0-21swapper/007:25:120
150689970,4cyclictest0-21swapper/008:15:120
150689970,3cyclictest14247-21gltestperf11:20:140
150689970,2cyclictest0-21swapper/010:27:580
150689970,1cyclictest9562-21ssh12:36:490
150689970,1cyclictest8226-21ssh11:12:430
150689970,1cyclictest8113-21diskmemload10:50:110
150689970,1cyclictest8113-21diskmemload09:49:150
150689970,1cyclictest4347-21apt-get11:50:010
150689970,1cyclictest29498-21ssh10:16:020
150689970,1cyclictest26238-21ssh11:35:170
150689970,1cyclictest16799-21kworker/0:112:05:110
150689970,1cyclictest13926-21ssh10:39:100
150689970,1cyclictest11775-21ssh11:58:420
150689970,1cyclictest10913-21ssh09:12:300
150689970,1cyclictest0-21swapper/012:15:280
150689970,1cyclictest0-21swapper/010:00:120
150689970,1cyclictest0-21swapper/009:30:120
150689970,1cyclictest0-21swapper/009:30:120
150839966,0cyclictest35-21ksoftirqd/312:35:193
150839965,1cyclictest8787-21ssh10:30:493
150839965,1cyclictest707-21snmpd10:00:513
150839965,1cyclictest707-21snmpd08:31:213
150839965,1cyclictest3623-21ssh11:05:463
150839965,1cyclictest35-21ksoftirqd/310:45:003
150839965,1cyclictest35-21ksoftirqd/308:10:003
150839965,1cyclictest30532-21sshd08:45:293
150839965,1cyclictest29745-21ssh10:16:433
150839965,1cyclictest26579-21ssh09:31:063
150839965,1cyclictest26579-21ssh09:31:053
150839965,1cyclictest18920-21ssh12:07:053
150839965,1cyclictest14601-21apt-get08:15:113
150839965,1cyclictest11682-21ssh11:58:263
150839965,1cyclictest11228-21ssh09:13:153
150839964,1cyclictest35-21ksoftirqd/307:15:003
150839964,1cyclictest27710-21ssh11:37:343
150839963,2cyclictest0-21swapper/308:00:233
150839962,0cyclictest8113-21diskmemload12:01:053
150839962,0cyclictest8113-21diskmemload10:10:193
150839961,2cyclictest0-21swapper/308:20:113
150839960,4cyclictest240-21systemd-journal07:54:593
150839960,3cyclictest0-21swapper/311:20:543
150839960,2cyclictest0-21swapper/312:15:183
150839960,1cyclictest240-21systemd-journal08:39:553
150839960,1cyclictest0-21swapper/307:10:173
150699966,0cyclictest21-21ksoftirqd/107:45:151
150689964,1cyclictest6561-21fschecks_count09:05:150
150689964,1cyclictest24778-21head08:35:150
150689962,2cyclictest7084-21apt-get08:00:010
150689960,6cyclictest0-21swapper/008:30:150
150689960,1cyclictest3219-21sendmail-msp09:00:000
150689960,1cyclictest0-21swapper/011:45:140
150689960,1cyclictest0-21swapper/009:00:170
150689960,1cyclictest0-21swapper/008:05:530
150689960,0cyclictest0-21swapper/007:55:200
150689960,0cyclictest0-21swapper/007:15:410
150839954,1cyclictest35-21ksoftirqd/311:00:123
150839954,1cyclictest35-21ksoftirqd/307:30:003
150839954,1cyclictest21744-21ssh10:06:273
150689954,1cyclictest9-21ksoftirqd/007:37:230
150689950,5cyclictest0-21swapper/008:50:480
150689950,0cyclictest0-21swapper/007:31:110
150839941,1cyclictest240-21systemd-journal07:25:013
150839940,2cyclictest0-21swapper/307:25:123
150839940,0cyclictest0-21swapper/308:10:103
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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