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2026-04-13 - 16:39
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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 100 highest latencies:
System rack1slot2.osadl.org (updated Mon Apr 13, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
71925344,0sleep20-21swapper/207:17:162
89224636,0sleep10-21swapper/107:18:471
81524231,0sleep00-21swapper/007:18:060
57623930,0sleep30-21swapper/307:15:363
8305060,0irq/26-0000:00:9281-21munin-node11:10:292
339960,0migration/38506-21kthreadcore09:35:253
339960,0migration/332278-21sh11:04:013
339960,0migration/330125-21sh10:43:553
339960,0migration/328147-21sh10:24:163
339960,0migration/314557-21sh10:52:343
329960,0watchdog/331464-21sh09:46:333
29815060,0irq/29-eth0-tx-9014-21munin-node08:55:270
29815060,0irq/29-eth0-tx-23226-21munin-node08:20:250
29815060,0irq/29-eth0-tx-13070-21df09:20:190
179960,0migration/110058-21munin-node09:55:201
149960,0migration/014555-21sh11:50:230
149960,0migration/012940-21sh11:49:090
149960,0migration/010883-21sh10:14:030
10869960,0cyclictest0-21swapper/010:36:190
339950,0migration/38963-21needreboot10:10:263
339950,0migration/38904-21aten_r1power_fr08:10:173
339950,0migration/37843-21kthreadcore10:30:233
339950,0migration/37791-21sh09:51:283
339950,0migration/34753-21latency_hist11:45:073
339950,0migration/331013-21cpuspeed_turbos12:00:203
339950,0migration/330804-21munin-node09:10:183
339950,0migration/330150-21kthreadcore08:00:233
339950,0migration/329512-21fschecks_time11:40:223
339950,0migration/329240-21munin-node07:35:313
339950,0migration/32730-21kthreadcore11:05:253
339950,0migration/324271-21taskset12:15:113
339950,0migration/321111-21kthreadcore09:00:263
339950,0migration/320812-21kthreadcore10:55:273
339950,0migration/319678-21ksmtuned10:19:363
339950,0migration/317582-21kthreadcore12:10:243
339950,0migration/317425-21kthreadcore11:50:263
339950,0migration/316167-21aten_r1power_vo08:15:183
339950,0migration/313487-21munin-node07:50:223
339950,0migration/312096-21idleruntime-cro07:50:063
339950,0migration/311874-21kthreadcore08:55:223
339950,0migration/311071-21sh11:30:043
329950,0watchdog/331042-21perl09:30:213
329950,0watchdog/315131-21kthreadcore09:55:253
329950,0watchdog/313248-21kthreadcore11:30:223
329950,0watchdog/312932-21cut12:05:263
329950,0watchdog/312419-21basename12:45:223
29815050,0irq/29-eth0-tx-9567-21ssh11:25:472
29815050,0irq/29-eth0-tx-4350-21ssh11:44:252
29815050,0irq/29-eth0-tx-31438-40yum-updatesd-he12:16:472
29815050,0irq/29-eth0-tx-29808-21ssh09:29:542
29815050,0irq/29-eth0-tx-25624-21ssh09:45:222
29815050,0irq/29-eth0-tx-23828-21kthreadcore11:55:242
29815050,0irq/29-eth0-tx-15682-21munin-node12:10:312
29815050,0irq/29-eth0-tx-1212-21grep09:50:202
29815050,0irq/29-eth0-tx-0-21swapper/211:15:252
29815050,0irq/29-eth0-tx-0-21swapper/210:38:552
29815050,0irq/29-eth0-tx-0-21swapper/210:30:172
29815050,0irq/29-eth0-tx-0-21swapper/210:29:582
29815050,0irq/29-eth0-tx-0-21swapper/209:30:412
29815050,0irq/29-eth0-tx-0-21swapper/008:05:230
29815050,0irq/29-eth0-tx-0-21swapper/007:55:290
29815050,0irq/29-eth0-tx-0-21swapper/007:50:210
29805050,0irq/28-eth0-rx-704-21kthreadcore08:25:243
29805050,0irq/28-eth0-rx-455-21awk10:05:293
29805050,0irq/28-eth0-rx-31965-21grep11:20:263
29805050,0irq/28-eth0-rx-26477-21aten2.4-expect12:35:183
29805050,0irq/28-eth0-rx-2108-21kthreadcore12:20:243
29805050,0irq/28-eth0-rx-19988-21ssh09:22:063
29805050,0irq/28-eth0-rx-16930-21if_eth007:30:223
29805050,0irq/28-eth0-rx-16060-21kthreadcore08:35:243
29805050,0irq/28-eth0-rx-0-21swapper/311:35:433
29805050,0irq/28-eth0-rx-0-21swapper/310:45:293
29805050,0irq/28-eth0-rx-0-21swapper/310:35:233
29805050,0irq/28-eth0-rx-0-21swapper/309:40:343
29805050,0irq/28-eth0-rx-0-21swapper/309:25:243
27150,0ktimersoftd/20-21swapper/212:26:342
259950,0migration/29487-21diskmemload10:10:322
259950,0migration/2334-21rt-features11:20:302
259950,0migration/225559-21pmu-power07:55:272
259950,0migration/225282-21munin-node11:00:202
259950,0migration/224200-21sh12:30:332
259950,0migration/219975-21sh09:22:052
259950,0migration/219238-21sh10:18:222
259950,0migration/210819-21kthreadcore08:10:232
259950,0migration/210419-21irqrtprio08:55:212
179950,0migration/17618-21kthreadcore08:30:231
179950,0migration/17550-21taskset09:50:481
179950,0migration/16184-21taskset10:48:271
179950,0migration/15039-21latency_hist07:45:061
179950,0migration/13054-21kthreadcore12:00:261
179950,0migration/126695-21latency_hist08:45:061
179950,0migration/122898-21taskset08:19:081
179950,0migration/119073-21munin-node11:15:231
179950,0migration/117493-21sh11:14:481
179950,0migration/116779-21kthreadcore10:35:241
179950,0migration/114608-21latency08:10:241
179950,0migration/112115-21sh11:46:501
179950,0migration/112087-21kthreadcore08:55:221
149950,0migration/09592-21kthreadcore10:50:260
149950,0migration/09529-21sh11:25:400
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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