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2026-08-14 - 07:21
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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 Fri Aug 14, 2026 00:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
226626160,0sleep30-21swapper/319:28:223
218424940,0sleep20-21swapper/219:27:252
2788124535,0sleep10-21swapper/119:25:161
224723127,0sleep00-21swapper/019:28:110
339970,0migration/32451-21irqrtprio00:50:273
35160,0ktimersoftd/30-21swapper/322:50:303
339960,0migration/316015-21kthreadcore00:00:273
339960,0migration/312324-21sh22:41:463
29815060,0irq/29-eth0-tx-10012-21munin-node19:35:230
29805060,0irq/28-eth0-rx-32471-21head21:40:253
29805060,0irq/28-eth0-rx-26750-21fschecks_time23:30:233
29805060,0irq/28-eth0-rx-19054-21fschecks_count22:10:253
24879966,0cyclictest14001-21diskmemload22:45:512
24879960,0cyclictest0-21swapper/200:13:592
19160,0ktimersoftd/10-21swapper/122:50:211
149960,0migration/0777-21kthreadcore19:50:260
149960,0migration/030869-21munin-node20:30:310
149960,0migration/030547-21timerandwakeup23:10:360
149960,0migration/018951-21sh22:26:290
8305050,0irq/26-0000:00:0-21swapper/320:33:283
339950,0migration/39661-21taskset20:16:023
339950,0migration/37953-21munin-node20:40:253
339950,0migration/35933-21taskset22:57:463
339950,0migration/35782-21kthreadcore23:15:273
339950,0migration/34392-21kthreadcore23:35:283
339950,0migration/33305-21aten_r1power_en21:00:203
339950,0migration/3329-21runrttasks21:57:503
339950,0migration/332206-21fschecks_count19:50:223
339950,0migration/331372-21munin-run19:50:093
339950,0migration/331174-21kthreadcore22:15:293
339950,0migration/330027-21kthreadcore20:55:273
339950,0migration/328894-21kthreadcore00:45:303
339950,0migration/328038-21latency_hist20:10:093
339950,0migration/32744-21kthreadcore00:30:273
339950,0migration/326226-21taskset23:46:153
339950,0migration/325048-21munin-node23:10:243
339950,0migration/324490-21kthreadcore22:30:293
339950,0migration/324423-21taskset21:12:073
339950,0migration/318442-21kthreadcore21:50:283
339950,0migration/317288-21kthreadcore21:30:283
339950,0migration/314941-21fschecks_count00:20:233
339950,0migration/311546-21irqrtprio19:35:273
339950,0migration/310379-21aten_r1power_po20:20:213
329950,0watchdog/314898-21cut22:25:283
329950,0watchdog/313074-21kthreadcore21:05:283
329950,0watchdog/310541-21diskstats22:05:243
29815050,0irq/29-eth0-tx-8850-21ssh22:02:192
29815050,0irq/29-eth0-tx-7137-21ssh23:15:502
29815050,0irq/29-eth0-tx-4090-21munin-node23:55:312
29815050,0irq/29-eth0-tx-3300-21munin-node22:20:292
29815050,0irq/29-eth0-tx-32013-21ssh23:14:122
29815050,0irq/29-eth0-tx-21189-21munin-node00:05:352
29815050,0irq/29-eth0-tx-17726-21munin-node21:10:270
29815050,0irq/29-eth0-tx-16362-21munin-node00:40:312
29815050,0irq/29-eth0-tx-10509-21munin-node21:05:240
29815050,0irq/29-eth0-tx-1001-21munin-node00:50:352
29815050,0irq/29-eth0-tx-0-21swapper/223:50:222
29815050,0irq/29-eth0-tx-0-21swapper/223:37:562
29815050,0irq/29-eth0-tx-0-21swapper/222:37:182
29815050,0irq/29-eth0-tx-0-21swapper/222:10:312
29815050,0irq/29-eth0-tx-0-21swapper/200:27:312
29815050,0irq/29-eth0-tx-0-21swapper/021:30:120
29815050,0irq/29-eth0-tx-0-21swapper/020:55:240
29815050,0irq/29-eth0-tx-0-21swapper/020:04:550
29805050,0irq/28-eth0-rx-8375-21grep23:55:273
29805050,0irq/28-eth0-rx-32201-21df20:35:223
29805050,0irq/28-eth0-rx-3094-21kthreadcore22:00:283
29805050,0irq/28-eth0-rx-2096-21cut22:35:283
29805050,0irq/28-eth0-rx-16583-21munin-node00:40:223
29805050,0irq/28-eth0-rx-15751-21ssh21:48:303
29805050,0irq/28-eth0-rx-14114-21kthreadcore00:55:303
29805050,0irq/28-eth0-rx-12228-21python00:15:303
29805050,0irq/28-eth0-rx-0-21swapper/323:50:263
29805050,0irq/28-eth0-rx-0-21swapper/323:40:283
29805050,0irq/28-eth0-rx-0-21swapper/322:45:273
29805050,0irq/28-eth0-rx-0-21swapper/321:25:293
29805050,0irq/28-eth0-rx-0-21swapper/321:15:263
29805050,0irq/28-eth0-rx-0-21swapper/300:10:283
27150,0ktimersoftd/20-21swapper/223:02:152
259950,0migration/228732-21mdstat21:35:292
259950,0migration/217830-21latency22:25:292
259950,0migration/217321-21kthreadcore20:45:262
259950,0migration/214244-21kthreadcore22:05:302
259950,0migration/211442-21gltestperf21:05:242
259950,0migration/210876-21kthreadcore21:45:302
24879955,0cyclictest0-21swapper/223:27:102
24879955,0cyclictest0-21swapper/220:55:392
24879954,0cyclictest3571-21lldpd19:47:492
24879950,0cyclictest0-21swapper/223:22:162
24879950,0cyclictest0-21swapper/223:08:052
24879950,0cyclictest0-21swapper/222:52:192
24879950,0cyclictest0-21swapper/200:39:122
24879950,0cyclictest0-21swapper/200:02:102
24869955,0cyclictest0-21swapper/123:30:231
24859955,0cyclictest0-21swapper/023:45:290
24859955,0cyclictest0-21swapper/022:44:470
24859955,0cyclictest0-21swapper/021:57:200
24859955,0cyclictest0-21swapper/000:46:490
24859953,0cyclictest3571-21lldpd23:30:230
24859950,0cyclictest0-21swapper/022:10:350
249950,0watchdog/210583-21gltestperf00:55:252
179950,0migration/19294-21df_abs23:20:211
179950,0migration/12886-21sh23:52:351
179950,0migration/128188-21sh22:33:301
179950,0migration/125922-21fschecks_count21:55:231
179950,0migration/123989-21kthreadcore20:05:271
179950,0migration/122836-21kthreadcore19:40:281
179950,0migration/120296-21munin-node20:00:351
179950,0migration/110566-21kthreadcore19:55:271
169950,0watchdog/16843-21ssh00:33:131
169950,0watchdog/116121-21ssh21:49:321
169950,0watchdog/10-21swapper/123:35:291
149950,0migration/09184-21kthreadcore00:15:250
149950,0migration/08386-21kthreadcore23:55:270
149950,0migration/07228-21runrttasks00:34:200
149950,0migration/07186-21kthreadcore20:15:260
149950,0migration/03679-21kthreadcore23:15:260
149950,0migration/032437-21df_abs21:20:200
149950,0migration/031966-21kthreadcore23:50:280
149950,0migration/030177-21kthreadcore20:10:270
149950,0migration/027261-21kthreadcore21:35:280
149950,0migration/027131-21kthreadcore21:15:260
149950,0migration/025473-21kthreadcore22:50:270
149950,0migration/022922-21kthreadcore00:05:270
149950,0migration/022872-21latency_hist00:25:090
149950,0migration/022604-21kthreadcore20:05:270
149950,0migration/018977-21munin-node00:00:320
149950,0migration/018509-21kthreadcore22:45:290
149950,0migration/018306-21fschecks_time23:25:230
149950,0migration/018041-21fschecks_count20:25:190
149950,0migration/017770-21sh23:41:240
149950,0migration/016340-21taskset00:40:170
149950,0migration/015955-21munin-node23:05:230
149950,0migration/011439-21munin-node20:20:260
149950,0migration/010668-21sh22:22:180
8305040,0irq/26-0000:00:15308-21ps20:00:263
339940,0migration/320551-21kthreadcore19:40:273
329940,0watchdog/30-21swapper/323:25:133
329940,0watchdog/30-21swapper/321:20:323
329940,0watchdog/30-21swapper/320:08:003
329940,0watchdog/30-21swapper/300:25:333
29815040,0irq/29-eth0-tx-8653-21kthreadcore00:15:252
29815040,0irq/29-eth0-tx-17538-21ssh23:40:422
29815040,0irq/29-eth0-tx-0-21swapper/223:45:272
29815040,0irq/29-eth0-tx-0-21swapper/222:55:212
29815040,0irq/29-eth0-tx-0-21swapper/222:40:312
29815040,0irq/29-eth0-tx-0-21swapper/221:50:122
29815040,0irq/29-eth0-tx-0-21swapper/221:40:162
29815040,0irq/29-eth0-tx-0-21swapper/200:30:162
29815040,0irq/29-eth0-tx-0-21swapper/021:00:340
29815040,0irq/29-eth0-tx-0-21swapper/020:55:050
29815040,0irq/29-eth0-tx-0-21swapper/019:30:300
29805040,0irq/28-eth0-rx-0-21swapper/323:20:543
29805040,0irq/28-eth0-rx-0-21swapper/323:05:183
29805040,0irq/28-eth0-rx-0-21swapper/323:00:273
29805040,0irq/28-eth0-rx-0-21swapper/322:20:503
29805040,0irq/28-eth0-rx-0-21swapper/321:35:203
29805040,0irq/28-eth0-rx-0-21swapper/320:49:133
29805040,0irq/28-eth0-rx-0-21swapper/300:35:303
29805040,0irq/28-eth0-rx-0-21swapper/300:06:453
259940,0migration/225166-21cpuspeed_turbos21:15:212
259940,0migration/221772-21kthreadcore20:25:242
259940,0migration/213830-21aten_r1power_fr20:00:202
259940,0migration/211949-21kthreadcore21:25:292
259940,0migration/210227-21kthreadcore20:40:262
24879943,0cyclictest7640-21awk19:55:242
24879943,0cyclictest4112-21awk20:15:242
24879943,0cyclictest3571-21lldpd21:22:202
24879943,0cyclictest3571-21lldpd21:12:502
24879943,0cyclictest3571-21lldpd21:01:492
24879943,0cyclictest3571-21lldpd20:33:492
24879943,0cyclictest3250-21irqbalance21:55:262
24879943,0cyclictest29160-21awk20:10:252
24879943,0cyclictest27073-21awk23:30:262
24879943,0cyclictest25921-21awk00:45:262
24879943,0cyclictest22330-21awk20:50:252
24879943,0cyclictest21561-21awk22:30:262
24879943,0cyclictest15319-21awk21:30:262
24879940,0cyclictest18124-21perl19:40:222
24869944,0cyclictest22616-21cut00:05:271
24869943,0cyclictest4489-21awk22:20:251
24869943,0cyclictest3571-21lldpd23:12:231
24869943,0cyclictest3571-21lldpd23:06:521
24869943,0cyclictest3571-21lldpd22:55:531
24869943,0cyclictest3571-21lldpd19:38:191
24869943,0cyclictest3571-21lldpd00:10:231
24869943,0cyclictest32581-21awk21:40:261
24869943,0cyclictest30117-21awk22:35:251
24869943,0cyclictest2630-21awk22:00:261
24869943,0cyclictest22257-21awk20:50:251
24869943,0cyclictest20395-21awk23:45:251
24869943,0cyclictest15035-21awk20:45:241
24869943,0cyclictest11310-21awk22:05:281
24869943,0cyclictest10025-21sadc20:20:091
24869940,0cyclictest0-21swapper/122:26:231
24859944,0cyclictest0-21swapper/023:04:580
24859943,0cyclictest8140-21awk21:25:270
24859943,0cyclictest7792-21awk20:40:230
24859943,0cyclictest461-21awk20:35:260
24859943,0cyclictest3288-21awk23:35:260
24859943,0cyclictest3250-21irqbalance22:15:560
24859943,0cyclictest3250-21irqbalance00:50:260
24859943,0cyclictest3250-21irqbalance00:11:560
24859943,0cyclictest30233-21awk22:35:260
24859943,0cyclictest2682-21awk22:00:270
24859943,0cyclictest10756-21awk00:55:260
24859943,0cyclictest10016-21awk23:20:240
249940,0watchdog/26134-21seq19:53:322
249940,0watchdog/215657-21kthreadcore20:20:282
249940,0watchdog/212884-21kthreadcore19:35:282
249940,0watchdog/20-21swapper/222:15:242
249940,0watchdog/20-21swapper/200:20:292
179940,0migration/18915-21kthreadcore21:25:281
179940,0migration/15342-21irqcore23:55:261
179940,0migration/130831-21kthreadcore20:10:271
179940,0migration/125171-21fschecks_time19:45:231
179940,0migration/123134-21df_abs21:35:221
179940,0migration/122913-21latency_hist00:25:091
179940,0migration/120056-21kthreadcore21:10:261
179940,0migration/119595-21hwlatdetect22:10:271
179940,0migration/115408-21kthreadcore20:20:281
179940,0migration/114434-21fschecks_time22:45:241
179940,0migration/114276-21kthreadcore21:05:281
179940,0migration/113091-21timerandwakeup20:40:341
179940,0migration/11172-21irqrtprio21:20:241
169940,0watchdog/18425-21ssh00:52:211
169940,0watchdog/16173-21chrt20:36:241
169940,0watchdog/132582-21munin-node19:50:241
169940,0watchdog/127741-21grep22:15:241
169940,0watchdog/125489-21ssh23:29:411
169940,0watchdog/120649-21ssh00:04:251
169940,0watchdog/117320-21fschecks_count21:50:241
169940,0watchdog/115159-21perl21:30:241
169940,0watchdog/111769-21munin-node23:40:251
169940,0watchdog/110452-21cut22:40:281
169940,0watchdog/10-21swapper/100:55:251
149940,0migration/05937-21sh21:40:430
149940,0migration/023958-21kthreadcore22:30:290
149940,0migration/018767-21irqstats19:40:260
149940,0migration/017747-21kthreadcore20:45:260
149940,0migration/014904-21sh00:36:440
149940,0migration/013464-21kthreadcore22:05:290
149940,0migration/012175-21kthreadcore19:55:270
329930,0watchdog/30-21swapper/319:31:243
29805030,0irq/28-eth0-rx-0-21swapper/320:50:203
29805030,0irq/28-eth0-rx-0-21swapper/320:25:183
29805030,0irq/28-eth0-rx-0-21swapper/319:55:203
24879932,0cyclictest3860-21awk19:30:242
24879932,0cyclictest31976-21aten_r1power_po20:35:212
24879932,0cyclictest22108-21awk20:05:252
24869933,0cyclictest3571-21lldpd20:55:491
24869932,0cyclictest8715-21cut21:00:271
24869932,0cyclictest7036-21awk00:15:231
24869932,0cyclictest3571-21lldpd21:16:201
24869932,0cyclictest30831-21expr00:45:311
24869932,0cyclictest25825-21awk20:30:251
24869930,0cyclictest7492-21diskstats23:00:231
24869930,0cyclictest17692-21cpuspeed_turbos20:25:181
24859933,0cyclictest5754-21kworker/0:022:55:150
24859933,0cyclictest28833-21kworker/0:200:20:170
24859933,0cyclictest27487-21kworker/0:119:45:140
24859930,0cyclictest8662-21tune2fs21:45:260
24859930,0cyclictest0-21swapper/021:50:230
169930,0watchdog/10-21swapper/123:15:251
169930,0watchdog/10-21swapper/100:40:291
169930,0watchdog/10-21swapper/100:35:291
169930,0watchdog/10-21swapper/100:20:291
24869920,0cyclictest18-21rcuc/119:30:081
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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