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2026-05-12 - 18:41
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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 Tue May 12, 2026 12:45:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
230362214152,22sleep20-21swapper/207:09:142
230932207156,25sleep30-21swapper/307:09:563
228552205150,42sleep00-21swapper/007:06:510
209932201158,30sleep10-21swapper/107:05:121
249972540,0sleep30-21swapper/309:20:153
2319699240,0cyclictest0-21swapper/209:50:122
2319699112,8cyclictest26310-21/usr/sbin/munin10:05:162
23196991111,0cyclictest0-21swapper/212:01:542
2319699106,3cyclictest3048-21sh09:34:452
2317999100,1cyclictest0-21swapper/010:30:110
232049999,0cyclictest35-21ksoftirqd/309:26:123
231969999,0cyclictest0-21swapper/211:13:052
231969990,6cyclictest0-21swapper/209:35:322
231969990,1cyclictest23530-21snmpd11:28:492
231879991,4cyclictest0-21swapper/107:40:121
231799995,2cyclictest240-21systemd-journal11:00:010
231799995,2cyclictest240-21systemd-journal11:00:000
231799992,1cyclictest2359-21ssh09:33:000
9465280,0sleep10-21swapper/109:41:081
232049988,0cyclictest32174-21kworker/3:210:47:563
232049987,1cyclictest35-21ksoftirqd/312:30:013
232049986,1cyclictest35-21ksoftirqd/311:50:323
232049986,1cyclictest35-21ksoftirqd/311:50:313
232049986,1cyclictest35-21ksoftirqd/310:05:203
232049986,1cyclictest23530-21snmpd10:58:243
232049986,1cyclictest23530-21snmpd10:58:243
232049986,1cyclictest23530-21snmpd07:10:513
232049982,5cyclictest4905-21perl11:45:143
232049980,7cyclictest7397-21/usr/sbin/munin09:40:193
232049980,5cyclictest31290-21threads08:30:183
232049980,4cyclictest10156-21ssh11:10:113
231969987,1cyclictest31343-21/usr/sbin/munin10:55:212
231969987,1cyclictest31343-21/usr/sbin/munin10:55:202
231969986,1cyclictest61650irq/122-eno112:30:102
231969986,1cyclictest61650irq/122-eno111:55:142
231969986,1cyclictest61650irq/122-eno109:00:002
231969986,1cyclictest23530-21snmpd12:35:342
231969986,1cyclictest23530-21snmpd10:14:242
231969986,1cyclictest23530-21snmpd09:46:282
231969986,1cyclictest23530-21snmpd07:12:102
231969980,5cyclictest0-21swapper/208:32:572
231969980,4cyclictest5689-21/usr/sbin/munin10:20:132
231969980,4cyclictest3041-21seq11:42:382
231879980,5cyclictest0-21swapper/111:55:131
231879980,2cyclictest0-21swapper/109:20:111
231799987,1cyclictest29050-21ssh10:08:020
231799986,1cyclictest9-21ksoftirqd/008:35:010
231799986,1cyclictest9-21ksoftirqd/007:25:360
231799986,1cyclictest23530-21snmpd11:22:080
231799986,1cyclictest23530-21snmpd08:00:140
231799986,1cyclictest23530-21snmpd07:51:310
231799983,4cyclictest30180-21head11:35:200
231799981,6cyclictest1896-21ssh12:25:120
231799981,1cyclictest0-21swapper/009:25:540
231799980,7cyclictest8849-21ssh12:34:160
231799980,7cyclictest3818-21unixbench_singl08:40:210
231799980,7cyclictest32253-21ssh10:11:290
231799980,7cyclictest31005-21ssh10:54:540
231799980,7cyclictest20088-21ssh12:05:180
231799980,7cyclictest16033-21diskmemload10:25:130
231799980,7cyclictest12076-21ssh11:10:430
231799980,7cyclictest0-21swapper/009:40:130
231799980,4cyclictest0-21swapper/009:18:350
231799980,2cyclictest0-21swapper/011:15:120
231799980,1cyclictest29274-21ssh12:17:440
231799980,1cyclictest25012-21netstat10:45:170
231799980,1cyclictest19836-21ssh09:14:520
231799980,1cyclictest0-21swapper/011:50:150
231799980,1cyclictest0-21swapper/011:50:140
232049976,1cyclictest32040-21cat07:25:173
232049975,1cyclictest35-21ksoftirqd/309:05:003
232049975,1cyclictest3112-21ssh09:34:543
232049975,1cyclictest2618-21ssh11:41:253
232049975,1cyclictest20968-21ssh12:05:283
232049975,1cyclictest19990-21ssh11:21:563
232049975,1cyclictest18448-21ssh10:36:093
232049975,1cyclictest15071-21ntpq09:05:173
232049975,1cyclictest12339-21ssh09:45:193
232049974,1cyclictest16033-21diskmemload09:53:383
232049973,1cyclictest17211-21uname09:10:183
232049972,2cyclictest5156-21apt-get10:20:113
232049970,4cyclictest0-21swapper/312:18:503
231969976,1cyclictest61650irq/122-eno111:35:122
231969976,1cyclictest61650irq/122-eno107:20:132
231969976,1cyclictest28-21ksoftirqd/208:20:012
231969976,1cyclictest23530-21snmpd07:30:582
231969975,1cyclictest61650irq/122-eno111:50:152
231969975,1cyclictest61650irq/122-eno111:50:142
231969975,1cyclictest61650irq/122-eno110:45:152
231969975,1cyclictest61650irq/122-eno110:35:122
231969975,1cyclictest23530-21snmpd09:41:162
231969975,1cyclictest23530-21snmpd08:36:562
231969975,1cyclictest23530-21snmpd07:37:372
231969975,1cyclictest15043-21ntpq09:05:182
231969975,1cyclictest13528-21cat10:30:152
231969974,2cyclictest87952sleep211:07:042
231969974,2cyclictest4177-21apt-get11:45:122
231969974,2cyclictest21633-21ssh09:15:202
231969974,1cyclictest28804-21ntp_states10:50:182
231969971,5cyclictest11552-21/usr/sbin/munin09:00:172
231969971,4cyclictest28800-21seq12:16:232
231969970,6cyclictest31173-21aten_r1power_cu07:25:142
231969970,6cyclictest0-21swapper/212:12:062
231969970,6cyclictest0-21swapper/211:24:492
231879970,6cyclictest0-21swapper/112:18:301
231879970,6cyclictest0-21swapper/112:10:141
231879970,4cyclictest0-21swapper/110:25:131
231879970,2cyclictest0-21swapper/109:05:111
231879970,1cyclictest0-21swapper/110:06:541
231799976,1cyclictest16033-21diskmemload11:00:170
231799975,1cyclictest3250-21ssh10:15:350
231799974,1cyclictest240-21systemd-journal08:49:590
231799972,1cyclictest16033-21diskmemload11:44:510
231799971,1cyclictest0-21swapper/012:10:150
231799971,1cyclictest0-21swapper/007:11:280
231799970,7cyclictest0-21swapper/011:30:190
231799970,6cyclictest30403-21/usr/sbin/munin12:20:210
231799970,6cyclictest22056-21apt-get10:00:010
231799970,6cyclictest21620-21cat11:25:130
231799970,6cyclictest16033-21diskmemload11:55:100
231799970,6cyclictest16033-21diskmemload09:45:290
231799970,6cyclictest15570-21ssh09:50:140
231799970,6cyclictest10768-21awk12:35:190
231799970,6cyclictest0-21swapper/009:38:050
231799970,6cyclictest0-21swapper/008:50:140
231799970,6cyclictest0-21swapper/008:15:120
231799970,4cyclictest0-21swapper/011:05:120
231799970,2cyclictest0-21swapper/008:05:110
231799970,1cyclictest18469-21ssh12:03:570
231799970,1cyclictest18398-21ssh10:35:590
231799970,1cyclictest16033-21diskmemload10:24:290
22160270,0sleep00-21swapper/010:41:030
232049965,1cyclictest9662-21ssh11:09:293
232049965,1cyclictest894-21ssh12:23:303
232049965,1cyclictest32717-21ssh10:12:473
232049965,1cyclictest29448-21ssh10:50:293
232049965,1cyclictest24569-21ssh10:01:003
232049965,1cyclictest23530-21snmpd08:25:593
232049965,1cyclictest23530-21snmpd08:17:413
232049965,1cyclictest23530-21snmpd07:16:003
232049965,1cyclictest17219-21sshd08:00:373
232049965,1cyclictest14131-21ssh11:57:183
232049965,1cyclictest12893-21ssh12:39:353
232049965,1cyclictest11120-21ssh10:26:323
232049964,1cyclictest605-21cat08:35:153
232049964,1cyclictest35-21ksoftirqd/312:30:243
232049964,1cyclictest23530-21snmpd11:35:053
232049964,1cyclictest23530-21snmpd08:51:363
232049964,1cyclictest23530-21snmpd08:13:493
232049964,1cyclictest23530-21snmpd07:32:483
232049961,4cyclictest3447-21apt-get07:35:133
232049960,5cyclictest0-21swapper/309:35:273
232049960,4cyclictest0-21swapper/311:33:133
232049960,4cyclictest0-21swapper/308:05:013
232049960,2cyclictest23530-21snmpd10:15:303
232049960,2cyclictest0-21swapper/312:12:233
232049960,2cyclictest0-21swapper/311:16:063
232049960,2cyclictest0-21swapper/310:30:103
232049960,0cyclictest0-21swapper/311:26:553
231969966,0cyclictest61650irq/122-eno111:30:012
231969966,0cyclictest61650irq/122-eno111:15:122
231969966,0cyclictest61650irq/122-eno110:25:042
231969966,0cyclictest61650irq/122-eno110:15:112
231969966,0cyclictest61650irq/122-eno110:00:042
231969966,0cyclictest61650irq/122-eno109:55:052
231969966,0cyclictest61650irq/122-eno109:25:052
231969966,0cyclictest61650irq/122-eno108:45:122
231969966,0cyclictest61650irq/122-eno108:10:162
231969966,0cyclictest61650irq/122-eno108:07:412
231969966,0cyclictest61650irq/122-eno107:55:152
231969966,0cyclictest61650irq/122-eno107:45:142
231969965,1cyclictest61650irq/122-eno110:40:122
231969965,1cyclictest61650irq/122-eno109:10:132
231969965,1cyclictest61650irq/122-eno108:20:132
231969965,1cyclictest61650irq/122-eno108:00:132
231969965,1cyclictest30350-21ssh12:20:022
231969965,1cyclictest23530-21snmpd08:51:532
231969965,0cyclictest61650irq/122-eno109:20:122
231969964,1cyclictest61650irq/122-eno112:05:162
231969964,1cyclictest61650irq/122-eno111:00:142
231969960,6cyclictest0-21swapper/212:25:572
231969960,6cyclictest0-21swapper/208:40:232
231969960,6cyclictest0-21swapper/207:40:202
231879962,3cyclictest0-21swapper/108:30:091
231879962,2cyclictest0-21swapper/111:50:321
231879962,2cyclictest0-21swapper/111:50:311
231879960,6cyclictest0-21swapper/112:35:481
231879960,6cyclictest0-21swapper/111:24:341
231879960,6cyclictest0-21swapper/108:12:551
231879960,6cyclictest0-21swapper/107:47:431
231879960,6cyclictest0-21swapper/107:22:431
231879960,5cyclictest0-21swapper/112:33:281
231879960,5cyclictest0-21swapper/109:51:161
231879960,4cyclictest0-21swapper/112:20:161
231879960,4cyclictest0-21swapper/111:15:071
231879960,4cyclictest0-21swapper/110:11:371
231879960,4cyclictest0-21swapper/109:55:111
231879960,4cyclictest0-21swapper/108:05:181
231879960,4cyclictest0-21swapper/107:55:171
231879960,3cyclictest0-21swapper/110:35:021
231879960,3cyclictest0-21swapper/110:20:171
231879960,3cyclictest0-21swapper/109:34:511
231879960,2cyclictest0-21swapper/110:55:191
231879960,2cyclictest0-21swapper/110:55:181
231879960,1cyclictest0-21swapper/111:40:061
231879960,1cyclictest0-21swapper/109:10:181
231799965,1cyclictest9-21ksoftirqd/007:46:090
231799965,1cyclictest9-21ksoftirqd/007:35:120
231799964,1cyclictest25993-21df_inode07:15:010
231799962,1cyclictest0-21swapper/007:55:120
231799961,4cyclictest4133-21ssh11:45:040
231799960,6cyclictest0-21swapper/009:01:500
231799960,6cyclictest0-21swapper/008:37:120
231799960,6cyclictest0-21swapper/007:20:190
231799960,5cyclictest0-21swapper/008:20:050
231799960,5cyclictest0-21swapper/007:40:000
231799960,0cyclictest19443-21ssh09:55:170
231799960,0cyclictest0-21swapper/009:20:060
231799960,0cyclictest0-21swapper/009:05:520
231799960,0cyclictest0-21swapper/008:25:140
231799960,0cyclictest0-21swapper/008:11:550
231799960,0cyclictest0-21swapper/007:31:350
232049955,0cyclictest32174-21kworker/3:207:57:223
232049954,1cyclictest35-21ksoftirqd/308:46:233
232049954,1cyclictest35-21ksoftirqd/307:54:593
232049954,1cyclictest2633-21ssh11:00:053
232049954,1cyclictest20072-21ssh10:40:013
232049953,1cyclictest23530-21snmpd07:21:493
232049951,3cyclictest20195-21ssh09:15:113
232049950,4cyclictest11009-21taskset08:56:293
232049950,3cyclictest0-21swapper/312:02:023
232049950,2cyclictest0-21swapper/309:57:333
231969955,0cyclictest61650irq/122-eno107:15:122
231969954,1cyclictest61650irq/122-eno108:25:542
231969950,5cyclictest0-21swapper/207:50:522
231879955,0cyclictest0-21swapper/110:33:281
231879954,1cyclictest0-21swapper/107:25:131
231879953,1cyclictest0-21swapper/109:15:441
231879952,2cyclictest0-21swapper/111:13:091
231879951,3cyclictest0-21swapper/111:45:141
231879951,2cyclictest0-21swapper/108:40:121
231879950,5cyclictest0-21swapper/111:36:581
231879950,5cyclictest0-21swapper/111:27:441
231879950,5cyclictest0-21swapper/110:45:181
231879950,5cyclictest0-21swapper/109:35:281
231879950,5cyclictest0-21swapper/108:23:171
231879950,5cyclictest0-21swapper/108:00:381
231879950,4cyclictest0-21swapper/111:31:281
231879950,4cyclictest0-21swapper/110:04:221
231879950,4cyclictest0-21swapper/108:49:591
231879950,3cyclictest0-21swapper/112:25:171
231879950,3cyclictest0-21swapper/109:25:201
231879950,2cyclictest0-21swapper/112:05:331
231879950,2cyclictest0-21swapper/111:07:181
231879950,2cyclictest0-21swapper/111:01:341
231879950,1cyclictest0-21swapper/112:00:141
231879950,1cyclictest0-21swapper/110:50:131
231799950,2cyclictest0-21swapper/008:55:110
13214250,0sleep121-21ksoftirqd/109:46:131
232049942,1cyclictest6184-21cpu07:40:133
232049942,1cyclictest25439-21expr08:20:133
232049941,1cyclictest2636-21/usr/sbin/munin08:40:153
232049940,3cyclictest8373-21/usr/sbin/munin07:45:163
231879943,1cyclictest125732sleep107:51:391
231879942,1cyclictest30852sleep107:33:361
231879942,1cyclictest0-21swapper/107:15:151
231879941,2cyclictest0-21swapper/107:35:131
231879941,1cyclictest0-21swapper/108:50:121
231879940,4cyclictest0-21swapper/108:15:201
231879940,4cyclictest0-21swapper/107:12:341
231879940,3cyclictest0-21swapper/109:00:121
231879940,2cyclictest0-21swapper/110:15:121
231879940,1cyclictest0-21swapper/110:40:131
231879933,0cyclictest0-21swapper/108:37:371
231879931,1cyclictest0-21swapper/108:25:121
231879930,2cyclictest0-21swapper/108:55:121
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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