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2026-05-07 - 18:36
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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
Compare latency of primary with shadow system
Characteristics of the highest latencies:
System rack1slot2.osadl.org (updated Thu May 07, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1746224737,0sleep10-21swapper/107:20:361
1737224229,0sleep20-21swapper/207:19:332
1746624026,0sleep00-21swapper/007:20:390
1728223626,0sleep30-21swapper/307:18:303
8305060,0irq/26-0000:00:14461-21munin-run09:32:052
4160,0ktimersoftd/00-21swapper/011:23:460
339960,0migration/37270-21sh09:43:523
339960,0migration/35081-21sh11:37:073
339960,0migration/329913-21gltestperf08:37:193
339960,0migration/32543-21ntp_offset11:32:273
339960,0migration/325271-21sh11:09:253
339960,0migration/324823-21timerandwakeup12:22:313
339960,0migration/317076-21munin-node08:47:253
339960,0migration/314764-21aten_r1power_cu09:32:153
329960,0watchdog/30-21swapper/311:02:213
29815060,0irq/29-eth0-tx-13412-21munin-node10:27:252
19160,0ktimersoftd/129044-21diskmemload11:23:461
176569966,0cyclictest0-21swapper/111:54:121
176569960,0cyclictest0-21swapper/109:12:171
339950,0migration/39651-21kthreadcore11:57:223
339950,0migration/38978-21kthreadcore09:27:223
339950,0migration/38223-21fschecks_time08:22:193
339950,0migration/35509-21runrttasks10:38:523
339950,0migration/34284-21kthreadcore07:32:243
339950,0migration/33305-21kthreadcore09:02:223
339950,0migration/329922-21kthreadcore12:27:233
339950,0migration/328700-21taskset08:36:163
339950,0migration/32805-21kthreadcore10:57:223
339950,0migration/326791-21fschecks_count09:57:183
339950,0migration/325893-21fschecks_time07:27:183
339950,0migration/324242-21fschecks_count09:37:183
339950,0migration/323584-21munin-node09:17:243
339950,0migration/323473-21kthreadcore12:42:233
339950,0migration/322762-21kthreadcore11:27:223
339950,0migration/321563-21kthreadcore08:52:233
339950,0migration/319682-21munin-node11:42:243
339950,0migration/315241-21fschecks_time08:27:173
339950,0migration/313558-21kthreadcore09:47:243
339950,0migration/310240-21kthreadcore09:07:233
329950,0watchdog/325858-21df08:57:163
329950,0watchdog/311883-21df11:22:173
329950,0watchdog/30-21swapper/310:17:243
29815050,0irq/29-eth0-tx-9410-21timerwakeupswit11:17:312
29815050,0irq/29-eth0-tx-6939-21ssh10:42:112
29815050,0irq/29-eth0-tx-29011-21munin-node08:37:170
29815050,0irq/29-eth0-tx-25065-21munin-node07:27:320
29815050,0irq/29-eth0-tx-18261-21cat09:32:222
29815050,0irq/29-eth0-tx-10017-21ssh09:47:222
29815050,0irq/29-eth0-tx-0-21swapper/212:42:412
29815050,0irq/29-eth0-tx-0-21swapper/211:52:422
29815050,0irq/29-eth0-tx-0-21swapper/211:49:032
29815050,0irq/29-eth0-tx-0-21swapper/211:26:392
29815050,0irq/29-eth0-tx-0-21swapper/009:22:260
29815050,0irq/29-eth0-tx-0-21swapper/008:49:490
29815050,0irq/29-eth0-tx-0-21swapper/008:42:190
29805050,0irq/28-eth0-rx-9014-21cut10:22:243
29805050,0irq/28-eth0-rx-31324-21kthreadcore09:22:223
29805050,0irq/28-eth0-rx-30804-21ntp_kernel_err12:07:273
29805050,0irq/28-eth0-rx-26117-21kthreadcore11:47:243
29805050,0irq/28-eth0-rx-24051-21munin-node09:52:303
29805050,0irq/28-eth0-rx-17143-21ssh12:19:333
29805050,0irq/28-eth0-rx-15577-21ssh10:47:083
29805050,0irq/28-eth0-rx-0-21swapper/312:39:233
29805050,0irq/28-eth0-rx-0-21swapper/310:42:183
29805050,0irq/28-eth0-rx-0-21swapper/310:13:243
29805050,0irq/28-eth0-rx-0-21swapper/310:09:383
29805050,0irq/28-eth0-rx-0-21swapper/307:52:243
259950,0migration/29839-21aten_r1power_vo12:17:182
259950,0migration/23681-21sh09:22:422
259950,0migration/230916-21kthreadcore08:37:222
259950,0migration/22378-21kthreadcore10:37:232
259950,0migration/223745-21aten_r1power_vo09:37:162
259950,0migration/223594-21sh10:51:022
259950,0migration/221056-21switchtime09:12:292
259950,0migration/213276-21missed_timers08:22:242
259950,0migration/21111-21taskset11:13:162
249950,0watchdog/220658-21grep10:12:162
249950,0watchdog/214809-21cpuspeed_turbos08:27:162
176619955,0cyclictest0-21swapper/212:01:422
176619955,0cyclictest0-21swapper/211:02:262
176619950,0cyclictest0-21swapper/212:30:432
176619950,0cyclictest0-21swapper/211:37:542
176619950,0cyclictest0-21swapper/210:09:272
176569950,0cyclictest0-21swapper/112:12:011
176569950,0cyclictest0-21swapper/110:45:181
176569950,0cyclictest0-21swapper/110:35:031
176569950,0cyclictest0-21swapper/109:35:181
176539955,0cyclictest6168-21kworker/0:212:42:070
176539955,0cyclictest6168-21kworker/0:212:37:430
176539955,0cyclictest6168-21kworker/0:212:27:310
176539955,0cyclictest6168-21kworker/0:212:22:230
176539955,0cyclictest6168-21kworker/0:212:17:450
176539955,0cyclictest6168-21kworker/0:212:07:410
176539955,0cyclictest6168-21kworker/0:212:02:250
176539955,0cyclictest6168-21kworker/0:211:57:150
176539955,0cyclictest6168-21kworker/0:211:52:210
176539955,0cyclictest6168-21kworker/0:211:47:190
176539955,0cyclictest6168-21kworker/0:211:42:510
176539955,0cyclictest6168-21kworker/0:211:33:590
176539955,0cyclictest6168-21kworker/0:211:27:230
176539955,0cyclictest6168-21kworker/0:211:21:310
176539955,0cyclictest6168-21kworker/0:211:13:150
176539955,0cyclictest6168-21kworker/0:211:07:210
176539955,0cyclictest6168-21kworker/0:211:05:010
176539955,0cyclictest6168-21kworker/0:210:48:450
176539955,0cyclictest6168-21kworker/0:210:32:430
176539955,0cyclictest6168-21kworker/0:210:30:170
176539955,0cyclictest6168-21kworker/0:210:17:270
176539955,0cyclictest6168-21kworker/0:210:14:030
176539955,0cyclictest6168-21kworker/0:210:07:270
176539955,0cyclictest6168-21kworker/0:209:57:270
176539955,0cyclictest6168-21kworker/0:209:52:430
176539955,0cyclictest6168-21kworker/0:209:48:090
176539955,0cyclictest6168-21kworker/0:209:43:270
176539955,0cyclictest6168-21kworker/0:209:41:070
176539955,0cyclictest6168-21kworker/0:209:27:580
176539955,0cyclictest6168-21kworker/0:207:37:220
176539950,0cyclictest0-21swapper/010:23:490
179950,0migration/128424-21kthreadcore09:57:221
179950,0migration/126724-21kthreadcore09:37:221
179950,0migration/12528-21munin-node11:32:271
179950,0migration/120810-21cpuspeed_turbos12:42:171
179950,0migration/118334-21taskset10:08:511
179950,0migration/116319-21kthreadcore08:02:221
179950,0migration/11443-21irqcore08:17:231
179950,0migration/113760-21timerwakeupswit08:22:301
179950,0migration/111274-21munin-run11:22:061
149950,0migration/08418-21kthreadcore11:37:220
149950,0migration/07121-21timerwakeupswit10:57:290
149950,0migration/06861-21kthreadcore10:02:250
149950,0migration/06538-21kthreadcore12:32:220
149950,0migration/06013-21kthreadcore07:57:210
149950,0migration/04772-21kthreadcore08:17:240
149950,0migration/04109-21kthreadcore10:37:230
149950,0migration/03706-21kthreadcore12:12:230
149950,0migration/030728-21irqrtprio12:47:230
149950,0migration/029359-21kthreadcore08:57:220
149950,0migration/028528-21kthreadcore10:52:230
149950,0migration/025179-21latency_hist08:12:040
149950,0migration/021592-21latency_hist08:32:050
149950,0migration/019667-21irqcore08:52:210
149950,0migration/018819-21kthreadcore09:32:220
149950,0migration/013088-21munin-node10:42:250
149950,0migration/013012-21kthreadcore09:07:240
339940,0migration/34506-21kthreadcore11:17:233
339940,0migration/34123-21kthreadcore08:17:243
339940,0migration/33866-21irqcore10:02:243
339940,0migration/325638-21kthreadcore10:32:233
329940,0watchdog/325571-21cut07:47:243
329940,0watchdog/30-21swapper/308:16:283
29815040,0irq/29-eth0-tx-401-21ssh10:57:112
29815040,0irq/29-eth0-tx-27049-21ssh11:27:592
29815040,0irq/29-eth0-tx-24225-21ssh10:52:102
29815040,0irq/29-eth0-tx-17506-21munin-node09:52:182
29815040,0irq/29-eth0-tx-0-21swapper/212:47:142
29815040,0irq/29-eth0-tx-0-21swapper/212:32:062
29815040,0irq/29-eth0-tx-0-21swapper/212:22:152
29815040,0irq/29-eth0-tx-0-21swapper/212:07:072
29815040,0irq/29-eth0-tx-0-21swapper/211:42:172
29815040,0irq/29-eth0-tx-0-21swapper/211:07:132
29815040,0irq/29-eth0-tx-0-21swapper/210:32:052
29815040,0irq/29-eth0-tx-0-21swapper/210:22:202
29815040,0irq/29-eth0-tx-0-21swapper/209:57:562
29815040,0irq/29-eth0-tx-0-21swapper/007:42:240
29805040,0irq/28-eth0-rx-21901-21kthreadcore12:02:233
29805040,0irq/28-eth0-rx-0-21swapper/312:47:183
29805040,0irq/28-eth0-rx-0-21swapper/312:32:293
29805040,0irq/28-eth0-rx-0-21swapper/312:12:133
29805040,0irq/28-eth0-rx-0-21swapper/311:52:063
29805040,0irq/28-eth0-rx-0-21swapper/311:12:513
29805040,0irq/28-eth0-rx-0-21swapper/310:27:453
29805040,0irq/28-eth0-rx-0-21swapper/308:07:183
29805040,0irq/28-eth0-rx-0-21swapper/307:57:163
259940,0migration/2427-21df_abs08:17:192
259940,0migration/2383-21aten_r1power_vo09:02:162
259940,0migration/227443-21kthreadcore08:32:222
259940,0migration/226060-21kthreadcore07:47:242
259940,0migration/224017-21kthreadcore08:52:232
259940,0migration/220182-21kthreadcore12:02:232
259940,0migration/219589-21kthreadcore07:22:222
259940,0migration/219589-21kthreadcore07:22:222
259940,0migration/217634-21kthreadcore07:42:212
259940,0migration/212377-21irqcore08:47:222
259940,0migration/211293-21kthreadcore09:07:232
24269240,0sleep324384-21aten_r1power_po10:52:173
249940,0watchdog/20-21swapper/210:17:242
249940,0watchdog/20-21swapper/207:57:202
249940,0watchdog/20-21swapper/207:32:242
176619943,0cyclictest3571-21lldpd12:12:212
176619943,0cyclictest3524-21snmpd09:42:122
176619943,0cyclictest3524-21snmpd07:39:412
176619943,0cyclictest3510-21awk10:02:212
176619943,0cyclictest29920-21awk11:32:222
176619943,0cyclictest26376-21awk08:12:202
176619943,0cyclictest19180-21awk08:07:212
176619940,0cyclictest11956-21munin-node12:37:192
176569944,0cyclictest0-21swapper/112:25:061
176569944,0cyclictest0-21swapper/109:11:111
176569944,0cyclictest0-21swapper/107:42:061
176569943,0cyclictest5062-21awk08:42:201
176569943,0cyclictest3571-21lldpd12:02:191
176569943,0cyclictest3571-21lldpd09:17:171
176569943,0cyclictest3571-21lldpd08:27:161
176569943,0cyclictest3524-21snmpd09:29:271
176569943,0cyclictest30297-21awk12:47:221
176569943,0cyclictest25485-21diskstats07:27:171
176569943,0cyclictest2004-21awk12:12:211
176569943,0cyclictest19109-21awk08:07:211
176569943,0cyclictest18611-21awk09:52:201
176539944,0cyclictest6168-21kworker/0:209:12:100
176539944,0cyclictest6168-21kworker/0:209:02:100
176539944,0cyclictest6168-21kworker/0:208:32:540
176539944,0cyclictest6168-21kworker/0:208:02:180
176539944,0cyclictest6168-21kworker/0:207:52:340
176539944,0cyclictest6168-21kworker/0:207:47:140
176539943,0cyclictest8461-21awk08:22:200
176539943,0cyclictest3250-21irqbalance09:17:220
176539943,0cyclictest3250-21irqbalance08:07:110
179940,0migration/19222-21kthreadcore11:57:221
179940,0migration/19179-21kthreadcore11:37:221
179940,0migration/17133-21munin-node10:57:291
179940,0migration/16979-21latency_hist07:37:051
179940,0migration/16367-21munin-node09:02:241
179940,0migration/14551-21gltestperf07:57:171
179940,0migration/13831-21irqcore10:02:241
179940,0migration/130828-21kthreadcore07:52:231
179940,0migration/130675-21kthreadcore08:37:221
179940,0migration/128358-21kthreadcore08:12:221
179940,0migration/126236-21fschecks_time08:57:171
179940,0migration/121537-21kthreadcore10:12:201
179940,0migration/12092-21diskmemload12:29:391
179940,0migration/120804-21kthreadcore08:52:221
179940,0migration/117909-21aten_r1power_cu11:07:171
179940,0migration/115319-21kthreadcore10:27:231
169940,0watchdog/13716-21ssh09:22:481
169940,0watchdog/127429-21ssh11:29:051
169940,0watchdog/12182-21ssh11:16:131
169940,0watchdog/121441-21ssh11:45:051
169940,0watchdog/116761-21awk10:47:211
169940,0watchdog/11377-21kthreadcore10:17:241
169940,0watchdog/112896-21ssh10:26:281
169940,0watchdog/110469-21ssh12:33:451
169940,0watchdog/10-21swapper/112:37:171
169940,0watchdog/10-21swapper/108:32:161
149940,0migration/02665-21kthreadcore07:32:230
149940,0migration/020306-21kthreadcore07:22:220
149940,0migration/020306-21kthreadcore07:22:220
8305030,0irq/26-0000:00:0-21swapper/208:42:202
329930,0watchdog/30-21swapper/308:02:083
329930,0watchdog/30-21swapper/307:37:203
329930,0watchdog/30-21swapper/307:22:203
329930,0watchdog/30-21swapper/307:22:203
29805030,0irq/28-eth0-rx-0-21swapper/309:12:153
29805030,0irq/28-eth0-rx-0-21swapper/308:42:163
29805030,0irq/28-eth0-rx-0-21swapper/307:44:403
249930,0watchdog/222035-21munin-node09:17:282
249930,0watchdog/20-21swapper/208:57:202
176619932,0cyclictest29874-21awk07:52:212
176619932,0cyclictest26113-21awk07:27:192
176569932,0cyclictest957-21awk09:42:191
176569932,0cyclictest8247-21awk07:37:201
176569932,0cyclictest31826-21awk10:37:211
176569930,0cyclictest22472-21aten_r1power_cu11:47:171
179930,0migration/113061-21kthreadcore09:47:241
169930,0watchdog/111134-21munin-node08:47:281
169930,0watchdog/10-21swapper/112:17:251
169930,0watchdog/10-21swapper/111:02:091
169930,0watchdog/10-21swapper/110:55:291
169930,0watchdog/10-21swapper/107:47:361
249920,0watchdog/20-21swapper/208:02:082
176569920,0cyclictest0-21swapper/107:22:051
176569920,0cyclictest0-21swapper/107:22:051
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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