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2026-04-11 - 23:56
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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 Apr 11, 2026 12:45:21)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
170842214164,24sleep00-21swapper/007:09:380
168362213149,41sleep30-21swapper/307:06:233
169692212161,25sleep20-21swapper/207:08:062
168762201146,21sleep10-21swapper/107:06:521
3121621100,0sleep10-21swapper/112:25:131
284722590,1sleep3341rcuc/311:39:573
190432170,0sleep10-21swapper/111:25:211
17194991412,1cyclictest28-21ksoftirqd/208:20:002
157852100,0sleep10-21swapper/112:05:141
172029997,1cyclictest35-21ksoftirqd/309:00:013
172029997,1cyclictest24922-21ssh12:15:333
171949999,0cyclictest0-21swapper/210:24:232
171949997,1cyclictest28-21ksoftirqd/210:00:002
171949990,8cyclictest0-21swapper/209:51:192
171899997,1cyclictest9-21ksoftirqd/007:15:500
171899995,1cyclictest294-21systemd-udevd10:27:080
171899990,4cyclictest20490-21perf10:05:000
171899990,1cyclictest240-21systemd-journal12:35:160
172029986,1cyclictest35-21ksoftirqd/311:30:223
172029980,6cyclictest125332sleep311:17:593
172029980,0cyclictest0-21swapper/307:40:123
171949987,1cyclictest28-21ksoftirqd/210:05:002
171949986,1cyclictest61650irq/122-eno111:46:592
171949986,1cyclictest61650irq/122-eno111:24:282
171949986,1cyclictest61650irq/122-eno109:41:342
171949986,1cyclictest61650irq/122-eno109:25:142
171949986,1cyclictest28-21ksoftirqd/207:19:592
171949986,1cyclictest23401-21perf08:29:592
171949986,1cyclictest10691-21cat11:15:152
171949981,6cyclictest6998-21kworker/u8:211:11:412
171949980,5cyclictest30812-21/usr/sbin/munin11:00:242
171949980,3cyclictest1747-21ntpd09:35:272
171909981,4cyclictest0-21swapper/110:30:121
171909980,4cyclictest0-21swapper/112:00:381
171899987,1cyclictest9-21ksoftirqd/011:49:280
171899987,1cyclictest9-21ksoftirqd/009:05:110
171899987,0cyclictest9889-21diskmemload12:06:570
171899986,1cyclictest9889-21diskmemload10:52:490
171899986,1cyclictest27735-21ssh10:14:150
171899984,3cyclictest9889-21diskmemload09:30:480
171899983,2cyclictest240-21systemd-journal10:31:280
171899981,6cyclictest26805-1kworker/u9:112:15:130
171899981,3cyclictest1432-21perf09:40:000
171899980,7cyclictest21834-21ssh09:24:430
171899980,6cyclictest548-21systemd-logind12:00:180
171899980,4cyclictest22795-21perf12:15:010
171899980,1cyclictest23324-21ssh11:31:150
172029976,1cyclictest35-21ksoftirqd/308:05:003
172029975,1cyclictest35-21ksoftirqd/308:18:503
172029974,3cyclictest569-21nscd09:42:103
172029974,1cyclictest569-21nscd12:13:193
172029974,1cyclictest240-21systemd-journal09:50:003
172029971,4cyclictest0-21swapper/309:59:243
172029970,5cyclictest0-21swapper/308:31:493
171949977,0cyclictest245432sleep211:34:362
171949977,0cyclictest0-21swapper/209:33:342
171949976,1cyclictest61650irq/122-eno112:20:432
171949976,1cyclictest61650irq/122-eno111:40:132
171949976,1cyclictest61650irq/122-eno110:49:402
171949976,1cyclictest61650irq/122-eno110:49:402
171949976,1cyclictest61650irq/122-eno109:23:332
171949976,1cyclictest61650irq/122-eno109:15:112
171949975,1cyclictest61650irq/122-eno112:25:092
171949975,1cyclictest61650irq/122-eno111:05:462
171949975,1cyclictest61650irq/122-eno110:35:122
171949975,1cyclictest61650irq/122-eno110:25:192
171949975,1cyclictest61650irq/122-eno107:25:152
171949975,1cyclictest28-21ksoftirqd/208:40:002
171949974,2cyclictest19611-21fschecks_time08:20:162
171949974,1cyclictest240-21systemd-journal10:19:592
171949974,1cyclictest240-21systemd-journal07:40:002
171949973,2cyclictest240-21systemd-journal12:04:592
171949973,2cyclictest240-21systemd-journal10:11:282
171949972,3cyclictest2093-21apt-get12:30:112
171949972,3cyclictest2093-21apt-get12:30:112
171949971,5cyclictest19558-21munin-node11:58:152
171949971,4cyclictest32259-21apt-get07:40:112
171949970,6cyclictest0-21swapper/212:35:122
171949970,6cyclictest0-21swapper/212:17:532
171949970,5cyclictest0-21swapper/209:12:212
171949970,3cyclictest4322-21munin-run07:50:002
171949970,2cyclictest0-21swapper/207:10:112
171909970,5cyclictest0-21swapper/110:21:391
171909970,5cyclictest0-21swapper/110:18:371
171909970,5cyclictest0-21swapper/109:38:011
171909970,4cyclictest0-21swapper/109:31:241
171909970,4cyclictest0-21swapper/109:15:121
171909970,1cyclictest0-21swapper/111:50:121
171899976,1cyclictest31897-21ssh12:25:170
171899974,1cyclictest9889-21diskmemload09:40:500
171899973,1cyclictest11624-21/usr/sbin/munin08:05:210
171899973,0cyclictest0-21swapper/009:00:120
171899972,3cyclictest27534-21apt-get07:30:110
171899971,1cyclictest12140-21ssh11:16:540
171899970,7cyclictest9001-21ssh09:50:000
171899970,6cyclictest989-21cstates08:50:140
171899970,6cyclictest5075-21ssh12:33:380
171899970,6cyclictest5075-21ssh12:33:380
171899970,6cyclictest25182-21apt07:25:130
171899970,6cyclictest20358-21switchtime08:20:220
171899970,6cyclictest19097-21ssh10:45:020
171899970,6cyclictest19097-21ssh10:45:020
171899970,6cyclictest14082-21cat09:55:170
171899970,6cyclictest13919-21ssh09:15:010
171899970,6cyclictest13568-21ssh11:20:070
171899970,6cyclictest10078-21ssh11:56:440
171899970,6cyclictest0-21swapper/011:35:100
171899970,6cyclictest0-21swapper/010:35:120
171899970,5cyclictest0-21swapper/011:01:590
171899970,1cyclictest9889-21diskmemload10:08:430
171899970,1cyclictest9377-21ssh11:14:430
171899970,1cyclictest4438-21cat11:50:140
171899970,1cyclictest4100-21ssh11:05:420
171899970,1cyclictest32281-21ssh11:44:550
171899970,1cyclictest29866-21ssh10:58:220
171899970,1cyclictest22237-21ssh09:25:090
171899970,1cyclictest12316-21ssh09:53:410
171899970,1cyclictest0-21swapper/011:25:260
171899970,1cyclictest0-21swapper/007:50:000
27757260,0sleep20-21swapper/207:30:132
172029965,1cyclictest8129-21ssh12:36:033
172029965,1cyclictest6892-21ssh11:53:243
172029965,1cyclictest5142-21ssh11:08:313
172029965,1cyclictest4656-21ssh12:32:283
172029965,1cyclictest4656-21ssh12:32:283
172029965,1cyclictest35-21ksoftirqd/307:24:593
172029965,1cyclictest31383-21ssh11:42:303
172029965,1cyclictest31194-21ssh10:18:173
172029965,1cyclictest25042-21ssh09:27:413
172029965,1cyclictest23763-21ssh10:08:433
172029965,1cyclictest23133-21ssh10:50:053
172029965,1cyclictest2106-21ssh11:45:423
172029965,1cyclictest20576-21ssh10:45:203
172029965,1cyclictest20576-21ssh10:45:193
172029965,1cyclictest19961-21ssh10:03:443
172029965,1cyclictest16444-21ssh09:16:583
172029965,1cyclictest15744-21ssh11:21:193
172029965,1cyclictest13657-21ssh12:01:023
172029965,1cyclictest1281-21ssh12:28:373
172029965,1cyclictest12703-21ssh10:35:213
172029965,1cyclictest10424-21ssh10:33:563
172029965,1cyclictest10222-21cat09:50:173
172029964,1cyclictest7855-21ssh11:10:343
172029964,1cyclictest1545-21ssh11:04:043
172029964,0cyclictest9889-21diskmemload11:26:013
172029963,1cyclictest294-21systemd-udevd09:37:083
172029963,1cyclictest240-21systemd-journal09:10:553
172029963,1cyclictest240-21systemd-journal09:02:563
172029963,1cyclictest240-21systemd-journal08:35:093
172029963,1cyclictest240-21systemd-journal07:54:523
172029961,4cyclictest7795-21aten2.4-expect09:05:113
172029961,3cyclictest0-21swapper/308:50:123
172029960,4cyclictest240-21systemd-journal07:31:373
172029960,3cyclictest0-21swapper/312:20:253
172029960,2cyclictest0-21swapper/310:40:113
172029960,2cyclictest0-21swapper/310:26:333
172029960,2cyclictest0-21swapper/309:22:433
171949966,0cyclictest61650irq/122-eno112:11:192
171949966,0cyclictest61650irq/122-eno112:05:022
171949966,0cyclictest61650irq/122-eno111:50:012
171949966,0cyclictest61650irq/122-eno111:25:252
171949966,0cyclictest61650irq/122-eno110:55:112
171949966,0cyclictest61650irq/122-eno110:53:552
171949966,0cyclictest61650irq/122-eno110:40:342
171949966,0cyclictest61650irq/122-eno110:30:172
171949966,0cyclictest61650irq/122-eno110:05:252
171949966,0cyclictest61650irq/122-eno109:47:382
171949966,0cyclictest61650irq/122-eno108:59:272
171949966,0cyclictest61650irq/122-eno108:53:512
171949966,0cyclictest61650irq/122-eno108:45:112
171949966,0cyclictest61650irq/122-eno108:40:132
171949966,0cyclictest61650irq/122-eno108:30:592
171949966,0cyclictest61650irq/122-eno108:11:202
171949966,0cyclictest61650irq/122-eno107:52:282
171949966,0cyclictest61650irq/122-eno107:20:122
171949965,1cyclictest61650irq/122-eno111:35:112
171949965,0cyclictest61650irq/122-eno108:00:132
171949964,1cyclictest0-21swapper/209:00:172
171909966,0cyclictest0-21swapper/111:05:191
171909964,1cyclictest227342sleep110:05:561
171909961,2cyclictest0-21swapper/108:25:101
171909960,6cyclictest0-21swapper/110:59:051
171909960,6cyclictest0-21swapper/109:29:301
171909960,6cyclictest0-21swapper/108:35:161
171909960,5cyclictest0-21swapper/112:15:171
171909960,4cyclictest0-21swapper/111:36:231
171909960,4cyclictest0-21swapper/110:29:221
171909960,4cyclictest0-21swapper/109:40:381
171909960,3cyclictest0-21swapper/112:38:411
171909960,3cyclictest0-21swapper/110:11:161
171909960,2cyclictest0-21swapper/112:22:381
171909960,2cyclictest0-21swapper/112:10:111
171909960,2cyclictest0-21swapper/109:11:411
171909960,1cyclictest0-21swapper/111:20:121
171909960,1cyclictest0-21swapper/108:55:111
171909960,1cyclictest0-21swapper/107:25:151
171909960,0cyclictest0-21swapper/110:40:281
171909960,0cyclictest0-21swapper/110:36:051
171899965,1cyclictest9-21ksoftirqd/008:38:440
171899965,1cyclictest18269-21users08:15:220
171899965,1cyclictest15146-21ssh10:40:110
171899964,1cyclictest27519-21fschecks_time12:20:160
171899962,2cyclictest240-21systemd-journal07:19:590
171899960,5cyclictest595-21ssh10:20:140
171899960,1cyclictest29513-21sh10:15:180
171899960,0cyclictest0-21swapper/008:55:150
171899960,0cyclictest0-21swapper/008:45:130
171899960,0cyclictest0-21swapper/008:34:110
171899960,0cyclictest0-21swapper/007:10:130
11058260,5sleep011231-21cut09:10:160
172029955,0cyclictest0-21swapper/310:55:063
172029955,0cyclictest0-21swapper/309:34:033
172029954,1cyclictest17509-21ssh12:06:093
172029954,0cyclictest9889-21diskmemload11:55:203
172029953,1cyclictest693-21runrttasks07:37:343
172029953,1cyclictest25766-21cut07:25:163
172029953,1cyclictest21264-21/usr/sbin/munin08:25:213
172029953,1cyclictest20419-21grep07:15:013
172029953,1cyclictest13759-21apt08:10:013
172029952,1cyclictest240-21systemd-journal08:47:393
172029950,2cyclictest24533-21/usr/sbin/munin10:10:153
172029950,2cyclictest0-21swapper/310:20:133
172029950,2cyclictest0-21swapper/307:45:153
172029950,1cyclictest240-21systemd-journal08:22:243
172029950,1cyclictest0-21swapper/307:55:123
171949955,0cyclictest61650irq/122-eno109:05:142
171949950,1cyclictest0-21swapper/208:05:122
171949950,1cyclictest0-21swapper/207:55:172
171909955,0cyclictest0-21swapper/108:47:421
171909953,1cyclictest0-21swapper/109:20:211
171909951,3cyclictest0-21swapper/110:45:121
171909951,3cyclictest0-21swapper/110:45:121
171909950,5cyclictest0-21swapper/111:10:191
171909950,5cyclictest0-21swapper/108:33:341
171909950,5cyclictest0-21swapper/108:15:161
171909950,5cyclictest0-21swapper/107:59:561
171909950,5cyclictest0-21swapper/107:37:341
171909950,4cyclictest0-21swapper/111:45:451
171909950,4cyclictest0-21swapper/111:45:011
171909950,4cyclictest0-21swapper/111:32:041
171909950,4cyclictest0-21swapper/107:45:131
171909950,3cyclictest0-21swapper/112:30:461
171909950,3cyclictest0-21swapper/112:30:461
171909950,3cyclictest0-21swapper/110:53:071
171909950,3cyclictest0-21swapper/109:57:461
171909950,3cyclictest0-21swapper/109:45:181
171909950,3cyclictest0-21swapper/109:00:201
171909950,3cyclictest0-21swapper/107:55:011
171909950,3cyclictest0-21swapper/107:15:121
171909950,2cyclictest0-21swapper/111:55:211
171909950,1cyclictest0-21swapper/109:52:231
171909950,0cyclictest0-21swapper/111:15:461
171909950,0cyclictest0-21swapper/111:01:041
171909950,0cyclictest0-21swapper/108:23:591
171899953,1cyclictest28460-21telnet08:40:130
171899953,1cyclictest13975-21/usr/sbin/munin08:10:200
171899950,5cyclictest0-21swapper/008:25:010
171899950,4cyclictest4544-21/usr/sbin/munin07:50:150
171899950,0cyclictest0-21swapper/008:00:180
172029942,1cyclictest28865-21expr08:40:143
172029940,1cyclictest17902-21df07:10:133
172029940,0cyclictest0-21swapper/308:10:093
171909942,1cyclictest77572sleep109:05:081
171909941,2cyclictest0-21swapper/108:10:121
171909941,1cyclictest0-21swapper/107:10:111
171909940,3cyclictest0-21swapper/108:50:501
171909940,1cyclictest0-21swapper/110:00:151
171909940,1cyclictest0-21swapper/107:40:111
171909940,0cyclictest0-21swapper/108:05:211
171899940,4cyclictest32418-21aten2.4-expect07:40:130
171899940,4cyclictest0-21swapper/007:55:140
171899940,0cyclictest0-21swapper/007:35:130
171909931,1cyclictest0-21swapper/108:40:111
171909931,1cyclictest0-21swapper/107:30:121
171909931,1cyclictest0-21swapper/107:20:141
171909930,1cyclictest0-21swapper/108:00:151
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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