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2026-04-19 - 16:49
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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 792 highest latencies:
System rack1slot1.osadl.org (updated Sun Apr 19, 2026 12:45:19)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
316462213150,22sleep20-21swapper/207:08:042
317532200161,25sleep00-21swapper/007:09:250
317792198161,24sleep10-21swapper/107:09:481
314562197159,25sleep30-21swapper/307:05:343
312292680,0sleep10-21swapper/110:40:211
90192660,0sleep20-21swapper/210:12:102
313952590,0sleep10-21swapper/110:00:041
321582560,0sleep30-21swapper/308:15:163
3190299180,1cyclictest19954-21vmstat10:25:213
3190299160,1cyclictest12316-21apt-get11:00:103
3190299160,1cyclictest0-21swapper/312:33:393
31895991616,0cyclictest0-21swapper/209:45:122
3190299150,1cyclictest6054-21wc08:30:153
3190299150,1cyclictest30945-21ssh09:59:323
3190299150,1cyclictest23971-21mailstats09:05:193
3190299150,1cyclictest17564-21grep11:05:193
3190299150,1cyclictest11959-21ssh09:34:333
3190299140,1cyclictest3331-21apt-get08:25:123
3190299140,1cyclictest26832-21ssh09:53:373
3190299140,1cyclictest22277-21ssh11:11:533
3190299140,1cyclictest1634-21ntp_states09:20:173
3190299140,1cyclictest14535-21aten_r1power_vo10:20:133
3190299140,1cyclictest14535-21aten_r1power_vo10:20:133
3190299140,1cyclictest0-21swapper/310:41:023
3190299131,11cyclictest19588-21ssh09:44:313
3190299130,1cyclictest4244-21python10:05:203
3190299130,1cyclictest15946-21latency_hist12:30:003
3190299130,0cyclictest0-21swapper/311:56:173
3190299130,0cyclictest0-21swapper/311:30:133
3190299123,8cyclictest24733-21diskmemload12:00:483
3190299121,1cyclictest0-21swapper/311:46:453
3190299120,2cyclictest1557-21taskset07:12:223
3190299120,12cyclictest0-21swapper/312:37:193
3190299120,1cyclictest32405-21latency10:00:143
3190299120,1cyclictest24733-21diskmemload11:40:183
3190299120,1cyclictest24733-21diskmemload10:14:323
3190299120,1cyclictest1428-21df10:45:143
3190299120,1cyclictest14129-21ntp_states08:45:203
3190299120,1cyclictest0-21swapper/311:23:403
3190299120,0cyclictest24733-21diskmemload11:27:553
3190299120,0cyclictest0-21swapper/312:18:213
3190299120,0cyclictest0-21swapper/311:17:003
3190299120,0cyclictest0-21swapper/310:56:003
3190299120,0cyclictest0-21swapper/309:17:453
31895991211,1cyclictest28-21ksoftirqd/212:35:172
31895991211,1cyclictest28-21ksoftirqd/212:15:012
31895991211,1cyclictest28-21ksoftirqd/212:15:002
31895991211,1cyclictest28-21ksoftirqd/209:31:012
31895991210,1cyclictest28-21ksoftirqd/209:05:002
3188499122,5cyclictest25514-21latency_hist10:35:010
31884991210,1cyclictest9-21ksoftirqd/007:30:000
3190299111,1cyclictest27397-21ssh09:12:143
3190299111,1cyclictest0-21swapper/310:35:153
3190299110,11cyclictest0-21swapper/312:14:553
3190299110,11cyclictest0-21swapper/312:14:543
3190299110,1cyclictest7280-21ssh09:27:423
3190299110,1cyclictest5226-21df_inode10:50:143
3190299110,1cyclictest20894-21hddtemp_smartct09:45:163
3190299110,1cyclictest18604-21users07:45:223
3190299110,1cyclictest14008-21sshd07:36:543
3190299110,1cyclictest10597-21hddtemp_smartct07:30:143
3190299110,1cyclictest0-21swapper/311:53:363
3190299110,1cyclictest0-21swapper/307:20:203
3190299110,1cyclictest0-21swapper/307:15:183
3190299110,0cyclictest24733-21diskmemload10:18:163
3189599119,1cyclictest28-21ksoftirqd/211:55:142
3189599119,1cyclictest28-21ksoftirqd/208:49:592
31895991110,1cyclictest28-21ksoftirqd/211:50:002
31895991110,1cyclictest28-21ksoftirqd/211:40:162
31895991110,1cyclictest28-21ksoftirqd/211:05:172
31895991110,1cyclictest28-21ksoftirqd/210:45:142
3190299101,0cyclictest24733-21diskmemload12:23:233
3190299100,9cyclictest15971-21latency_hist09:40:013
3190299100,1cyclictest8813-21sh11:36:503
3190299100,1cyclictest31652-21ssh12:06:583
3190299100,1cyclictest240-21systemd-journal08:59:593
3190299100,1cyclictest240-21systemd-journal08:45:013
3190299100,1cyclictest240-21systemd-journal08:40:003
3190299100,1cyclictest240-21systemd-journal08:25:003
3190299100,1cyclictest240-21systemd-journal08:10:003
3190299100,1cyclictest0-21swapper/308:50:143
3190299100,1cyclictest0-21swapper/307:50:123
3190299100,0cyclictest0-21swapper/310:31:243
3189599109,1cyclictest28-21ksoftirqd/212:05:012
3189599109,1cyclictest28-21ksoftirqd/211:00:142
3189599109,1cyclictest28-21ksoftirqd/210:50:112
3189599109,1cyclictest28-21ksoftirqd/210:20:162
3189599109,1cyclictest28-21ksoftirqd/210:20:152
3189599109,1cyclictest28-21ksoftirqd/209:55:152
3189599108,1cyclictest28-21ksoftirqd/210:25:152
3189599108,1cyclictest28-21ksoftirqd/209:15:142
3189599108,1cyclictest28-21ksoftirqd/208:25:012
3189599108,1cyclictest28-21ksoftirqd/207:49:592
3189599100,9cyclictest0-21swapper/210:37:472
319029990,1cyclictest9365-21taskset07:27:453
319029990,1cyclictest30949-21cat08:15:013
319029990,1cyclictest240-21systemd-journal08:00:003
319029990,1cyclictest240-21systemd-journal07:59:593
318959998,1cyclictest28-21ksoftirqd/210:00:112
318959998,1cyclictest28-21ksoftirqd/208:54:592
318959998,1cyclictest28-21ksoftirqd/208:30:162
318959997,1cyclictest28-21ksoftirqd/210:30:212
318959997,1cyclictest28-21ksoftirqd/209:20:122
318959995,2cyclictest28-21ksoftirqd/210:08:272
318849994,5cyclictest347-21ssh10:00:170
318849992,4cyclictest10059-21sed11:39:590
318849990,4cyclictest11906-21latency_hist07:35:010
11722290,1sleep03188499cyclictest12:24:200
319029986,1cyclictest17998-21snmpd07:44:383
319029980,7cyclictest20048-21/usr/sbin/munin09:00:163
318959988,0cyclictest28-21ksoftirqd/212:15:182
318959988,0cyclictest28-21ksoftirqd/211:25:212
318959987,1cyclictest28-21ksoftirqd/212:23:402
318959987,1cyclictest28-21ksoftirqd/211:30:142
318959987,1cyclictest28-21ksoftirqd/210:15:192
318959987,1cyclictest28-21ksoftirqd/208:00:142
318959987,1cyclictest28-21ksoftirqd/207:50:132
318959986,1cyclictest61650irq/122-eno112:25:182
318959986,1cyclictest61650irq/122-eno108:16:382
318959986,1cyclictest28-21ksoftirqd/211:50:142
318959986,1cyclictest28-21ksoftirqd/210:55:182
318959983,4cyclictest61650irq/122-eno109:13:542
318959980,4cyclictest0-21swapper/208:40:102
318849987,1cyclictest27876-21nscd10:00:000
318849987,1cyclictest15989-21ssh11:45:410
318849986,1cyclictest9-21ksoftirqd/007:15:000
318849986,1cyclictest17998-21snmpd11:17:480
318849986,1cyclictest17998-21snmpd09:08:280
318849986,1cyclictest17998-21snmpd08:25:010
318849986,1cyclictest17998-21snmpd07:51:200
318849983,5cyclictest6245-21perf11:35:000
318849980,7cyclictest7016-21ssh10:51:440
318849980,7cyclictest0-21swapper/011:40:170
318849980,1cyclictest16470-21cstates11:05:140
318959976,1cyclictest61650irq/122-eno112:30:152
318959976,1cyclictest61650irq/122-eno111:24:012
318959976,1cyclictest61650irq/122-eno111:17:552
318959976,1cyclictest61650irq/122-eno109:37:372
318959976,1cyclictest28-21ksoftirqd/212:05:132
318959976,1cyclictest28-21ksoftirqd/210:43:582
318959976,1cyclictest28-21ksoftirqd/209:25:132
318959975,1cyclictest61650irq/122-eno111:10:132
318959975,1cyclictest28-21ksoftirqd/209:50:122
318959975,1cyclictest28-21ksoftirqd/209:40:112
318959975,1cyclictest28-21ksoftirqd/208:55:132
318959975,1cyclictest17998-21snmpd07:35:052
318959971,6cyclictest0-21swapper/208:26:092
318959970,1cyclictest0-21swapper/209:06:532
318889971,3cyclictest0-21swapper/110:25:151
318889970,7cyclictest0-21swapper/112:10:141
318889970,7cyclictest0-21swapper/112:10:131
318889970,6cyclictest0-21swapper/107:27:081
318889970,5cyclictest136602sleep111:44:421
318889970,1cyclictest0-21swapper/109:35:161
318849976,1cyclictest7622-21ssh12:19:060
318849976,1cyclictest26010-21ssh12:00:150
318849976,1cyclictest17998-21snmpd09:15:450
318849976,1cyclictest16190-21ssh10:20:250
318849976,1cyclictest16190-21ssh10:20:240
318849975,1cyclictest9-21ksoftirqd/007:59:590
318849975,1cyclictest24733-21diskmemload09:30:160
318849975,1cyclictest20555-21df_inode09:00:140
318849975,1cyclictest17998-21snmpd08:31:270
318849975,1cyclictest17998-21snmpd08:15:010
318849975,1cyclictest17998-21snmpd07:15:470
318849975,1cyclictest11411-21ssh10:15:160
318849972,4cyclictest24990-21netstat09:50:160
318849971,5cyclictest18694-21ssh10:25:150
318849971,3cyclictest24733-21diskmemload11:14:470
318849971,1cyclictest0-21swapper/010:10:350
318849970,6cyclictest5297-21taskset10:07:170
318849970,6cyclictest4277-21ssh12:15:010
318849970,6cyclictest4277-21ssh12:15:000
318849970,6cyclictest3624-21ssh09:23:390
318849970,6cyclictest32729-21grep11:25:200
318849970,6cyclictest29754-21ssh11:21:320
318849970,6cyclictest2885-1kworker/u9:212:26:120
318849970,6cyclictest16485-21ntp_states08:50:160
318849970,6cyclictest12962-21ssh09:35:130
318849970,6cyclictest12822-21df11:00:130
318849970,6cyclictest0-21swapper/012:35:000
318849970,6cyclictest0-21swapper/008:40:140
318849970,6cyclictest0-21swapper/007:38:500
318849970,1cyclictest29481-21ssh10:40:000
318849970,1cyclictest2857-21ssh10:45:450
318849970,1cyclictest27715-21ssh09:13:030
318849970,1cyclictest24733-21diskmemload11:51:320
318849970,1cyclictest23987-21ssh11:56:460
318849970,1cyclictest19221-21ssh09:43:340
318849970,1cyclictest0-21swapper/010:55:120
318849970,1cyclictest0-21swapper/010:35:140
318959966,0cyclictest61650irq/122-eno111:35:112
318959966,0cyclictest61650irq/122-eno108:13:572
318959965,1cyclictest61650irq/122-eno107:15:002
318959964,1cyclictest28-21ksoftirqd/207:25:122
318959964,1cyclictest28-21ksoftirqd/207:10:132
318959962,1cyclictest11153-21grep07:30:182
318959961,0cyclictest8239-21apt-get08:35:122
318959960,6cyclictest0-21swapper/207:57:422
318959960,5cyclictest0-21swapper/207:20:132
318959960,3cyclictest0-21swapper/207:40:122
318889961,2cyclictest0-21swapper/111:00:001
318889961,2cyclictest0-21swapper/108:55:101
318889960,6cyclictest0-21swapper/111:47:331
318889960,6cyclictest0-21swapper/107:16:591
318889960,5cyclictest0-21swapper/112:20:261
318889960,5cyclictest0-21swapper/110:47:221
318889960,5cyclictest0-21swapper/109:10:211
318889960,5cyclictest0-21swapper/108:10:151
318889960,5cyclictest0-21swapper/107:55:151
318889960,5cyclictest0-21swapper/107:54:511
318889960,3cyclictest0-21swapper/109:16:241
318889960,2cyclictest0-21swapper/111:19:581
318889960,2cyclictest0-21swapper/107:20:141
318889960,1cyclictest0-21swapper/110:20:121
318889960,1cyclictest0-21swapper/110:20:121
318889960,1cyclictest0-21swapper/108:30:461
318889960,1cyclictest0-21swapper/108:00:291
318889960,0cyclictest0-21swapper/107:35:191
318849965,1cyclictest25098-21ntpq08:00:170
318849964,1cyclictest24733-21diskmemload12:05:330
318849964,1cyclictest17998-21snmpd07:22:250
318849961,2cyclictest240-21systemd-journal08:14:590
318849961,1cyclictest14521-21apt-get07:40:120
318849960,6cyclictest0-21swapper/012:31:380
318849960,6cyclictest0-21swapper/008:57:200
318849960,6cyclictest0-21swapper/008:46:020
318849960,5cyclictest0-21swapper/007:45:150
318849960,1cyclictest5304-21/usr/sbin/munin09:25:140
318849960,1cyclictest20608-21forks09:45:150
318849960,0cyclictest0-21swapper/008:22:190
24666260,1sleep10-21swapper/111:58:401
318959954,1cyclictest28-21ksoftirqd/208:05:162
318889955,0cyclictest0-21swapper/110:07:191
318889955,0cyclictest0-21swapper/109:52:371
318889955,0cyclictest0-21swapper/109:32:461
318889951,2cyclictest0-21swapper/111:35:151
318889951,1cyclictest0-21swapper/110:30:171
318889951,1cyclictest0-21swapper/109:55:191
318889950,5cyclictest0-21swapper/112:17:501
318889950,5cyclictest0-21swapper/111:21:511
318889950,5cyclictest0-21swapper/111:10:421
318889950,5cyclictest0-21swapper/110:57:121
318889950,5cyclictest0-21swapper/110:12:261
318889950,5cyclictest0-21swapper/109:27:221
318889950,5cyclictest0-21swapper/108:27:341
318889950,5cyclictest0-21swapper/107:31:381
318889950,5cyclictest0-21swapper/107:12:221
318889950,4cyclictest0-21swapper/108:55:001
318889950,4cyclictest0-21swapper/108:40:141
318889950,3cyclictest0-21swapper/112:26:141
318889950,3cyclictest0-21swapper/112:08:341
318889950,2cyclictest0-21swapper/112:01:581
318889950,2cyclictest0-21swapper/110:50:121
318889950,2cyclictest0-21swapper/109:40:141
318889950,0cyclictest0-21swapper/112:30:531
318889950,0cyclictest0-21swapper/111:54:171
318849950,5cyclictest0-21swapper/008:08:200
318849950,2cyclictest0-21swapper/008:35:120
318889944,0cyclictest58432sleep111:34:031
318889941,1cyclictest0-21swapper/112:35:121
318889941,1cyclictest0-21swapper/110:35:131
318889940,4cyclictest0-21swapper/109:45:211
318889940,4cyclictest0-21swapper/107:47:041
318889940,3cyclictest0-21swapper/108:15:141
318889940,3cyclictest0-21swapper/107:45:001
318889940,2cyclictest0-21swapper/111:27:091
318889940,2cyclictest0-21swapper/111:06:281
318889940,1cyclictest0-21swapper/108:35:111
318889940,0cyclictest0-21swapper/110:15:561
318889940,0cyclictest0-21swapper/109:22:231
318889940,0cyclictest0-21swapper/109:05:191
318889940,0cyclictest0-21swapper/109:02:191
318889940,0cyclictest0-21swapper/108:20:191
318889940,0cyclictest0-21swapper/108:07:081
318889930,1cyclictest0-21swapper/108:45:161
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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