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2026-04-19 - 04:10
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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 Sun Apr 19, 2026 00:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2256226261,0sleep20-21swapper/219:15:562
2307124839,0sleep10-21swapper/119:16:311
2318224736,0sleep00-21swapper/019:17:420
2336623829,0sleep30-21swapper/319:19:533
29815070,0irq/29-eth0-tx-9459-21munin-node19:55:590
235049977,0cyclictest6310-21sensors00:25:552
35160,0ktimersoftd/30-21swapper/321:35:533
339960,0migration/39977-21sh21:22:403
339960,0migration/39552-21sh23:33:443
339960,0migration/37139-21sh23:13:043
339960,0migration/35429-21sh00:08:543
339960,0migration/323253-21munin-node21:50:463
339960,0migration/321369-21sh00:00:413
339960,0migration/319632-21sh22:42:213
339960,0migration/318493-21sh21:26:463
339960,0migration/316660-21sh00:34:383
339960,0migration/315712-21sh22:03:533
29815060,0irq/29-eth0-tx-13179-21munin-node20:21:000
29805060,0irq/28-eth0-rx-19555-21df_inode23:40:473
29805060,0irq/28-eth0-rx-0-21swapper/300:45:333
235049960,0cyclictest0-21swapper/223:24:062
234969960,0cyclictest0-21swapper/000:45:530
149960,0migration/028586-21sh22:48:220
149960,0migration/023337-21sh00:20:290
149960,0migration/011983-21smart_nvme0n121:40:560
149960,0migration/01174-21munin-node22:30:540
8305050,0irq/26-0000:00:6584-21basename23:11:342
339950,0migration/38706-21kthreadcore20:15:523
339950,0migration/38276-21kthreadcore21:00:513
339950,0migration/36602-21fschecks_count22:55:483
339950,0migration/35651-21sendmail_mailst21:55:563
339950,0migration/35447-21kthreadcore19:50:513
339950,0migration/35081-21munin-node20:55:543
339950,0migration/331695-21kthreadcore22:50:503
339950,0migration/330954-21kthreadcore23:45:513
339950,0migration/328105-21cpuspeed_turbos21:15:473
339950,0migration/325576-21cpuspeed_turbos22:10:473
339950,0migration/32460-21kthreadcore00:25:513
339950,0migration/324463-21kthreadcore19:40:523
339950,0migration/324285-21gltestperf23:05:483
339950,0migration/323955-21cpuspeed_turbos19:20:453
339950,0migration/322463-21sh21:49:473
339950,0migration/321488-21timerandwakeup00:15:593
339950,0migration/317474-21kthreadcore23:00:503
339950,0migration/312488-21latency_hist23:55:343
339950,0migration/310880-21munin-node20:40:483
339950,0migration/310415-21latency_hist23:35:343
339950,0migration/31020-21sh23:29:233
329950,0watchdog/326882-21ssh22:29:373
329950,0watchdog/324959-21ssh22:10:333
329950,0watchdog/318903-21kthreadcore00:35:533
329950,0watchdog/30-21swapper/320:30:563
29815050,0irq/29-eth0-tx-8667-21munin-node00:30:562
29815050,0irq/29-eth0-tx-6003-21munin-node22:55:522
29815050,0irq/29-eth0-tx-4180-21ssh22:51:172
29815050,0irq/29-eth0-tx-4074-21munin-node23:50:562
29815050,0irq/29-eth0-tx-29621-21cut21:35:462
29815050,0irq/29-eth0-tx-22938-21latency_hist21:50:342
29815050,0irq/29-eth0-tx-21086-21munin-node22:45:472
29815050,0irq/29-eth0-tx-11514-21cut21:25:452
29815050,0irq/29-eth0-tx-0-21swapper/223:07:182
29815050,0irq/29-eth0-tx-0-21swapper/222:30:482
29815050,0irq/29-eth0-tx-0-21swapper/222:15:552
29815050,0irq/29-eth0-tx-0-21swapper/221:33:412
29815050,0irq/29-eth0-tx-0-21swapper/020:55:450
29815050,0irq/29-eth0-tx-0-21swapper/020:45:480
29815050,0irq/29-eth0-tx-0-21swapper/020:30:470
29805050,0irq/28-eth0-rx-8723-21ssh22:17:113
29805050,0irq/28-eth0-rx-8508-21uname00:45:553
29805050,0irq/28-eth0-rx-3877-21basename22:35:453
29805050,0irq/28-eth0-rx-3552-21lldpd23:25:333
29805050,0irq/28-eth0-rx-29978-21sendmail_mailst00:20:563
29805050,0irq/28-eth0-rx-17912-21cut19:35:523
29805050,0irq/28-eth0-rx-13758-21ssh23:55:473
29805050,0irq/28-eth0-rx-11865-21kthreadcore23:15:523
29805050,0irq/28-eth0-rx-0-21swapper/322:31:013
29805050,0irq/28-eth0-rx-0-21swapper/321:44:293
29805050,0irq/28-eth0-rx-0-21swapper/319:45:513
2817250,0sleep03104-21diskstats21:20:470
259950,0migration/29536-21munin-node19:55:452
259950,0migration/28460-21kthreadcore22:35:522
259950,0migration/26735-21sh21:57:532
259950,0migration/23939-21kthreadcore23:30:522
259950,0migration/230937-21kthreadcore00:40:532
259950,0migration/219061-21latency_hist23:40:342
259950,0migration/216674-21kthreadcore19:35:512
259950,0migration/215314-21kthreadcore21:05:522
235049955,0cyclictest3571-21lldpd23:56:352
235049955,0cyclictest0-21swapper/223:28:402
235049955,0cyclictest0-21swapper/222:40:452
235049955,0cyclictest0-21swapper/221:47:372
235049950,0cyclictest0-21swapper/223:15:452
235049950,0cyclictest0-21swapper/222:27:402
235049950,0cyclictest0-21swapper/200:46:142
235049950,0cyclictest0-21swapper/200:10:372
235049950,0cyclictest0-21swapper/200:10:372
235049950,0cyclictest0-21swapper/200:08:432
234979954,0cyclictest3571-21lldpd00:23:351
234979950,0cyclictest0-21swapper/123:06:181
234979950,0cyclictest0-21swapper/122:00:531
234979950,0cyclictest0-21swapper/121:58:591
234979950,0cyclictest0-21swapper/121:20:591
234979950,0cyclictest0-21swapper/100:29:141
234969950,0cyclictest0-21swapper/023:04:110
19150,0ktimersoftd/10-21swapper/100:30:581
179950,0migration/15338-21sh22:54:311
179950,0migration/126813-21kthreadcore19:20:511
179950,0migration/11529-21kthreadcore23:10:521
169950,0watchdog/111152-21sed20:40:481
149950,0migration/09174-21taskset19:55:060
149950,0migration/08920-21fschecks_count23:15:470
149950,0migration/08232-21kthreadcore22:35:520
149950,0migration/07813-21kthreadcore23:50:520
149950,0migration/06780-21kthreadcore23:30:530
149950,0migration/06195-21latency_hist00:10:350
149950,0migration/06195-21latency_hist00:10:350
149950,0migration/05482-21taskset19:30:120
149950,0migration/05303-21kthreadcore20:35:510
149950,0migration/04542-21kthreadcore23:10:530
149950,0migration/030478-21sh23:07:220
149950,0migration/026600-21sensors_fan20:25:550
149950,0migration/026251-21kthreadcore21:10:490
149950,0migration/026197-21kthreadcore20:05:500
149950,0migration/025970-21fschecks_time22:10:480
149950,0migration/025590-21kthreadcore21:30:520
149950,0migration/020825-21fschecks_time19:40:480
149950,0migration/020610-21munin-node21:45:550
149950,0migration/015939-21sh00:32:360
149950,0migration/015748-21kthreadcore23:35:530
149950,0migration/015329-21kthreadcore22:40:500
149950,0migration/014214-21sh23:00:090
149950,0migration/013610-21kthreadcore21:25:510
149950,0migration/012731-21taskset20:18:110
149950,0migration/012389-21kthreadcore20:40:490
339940,0migration/330897-21taskset20:53:243
339940,0migration/326065-21kthreadcore20:25:513
339940,0migration/321090-21aten_r1power_cu22:45:463
329940,0watchdog/32424-21munin-node20:35:483
329940,0watchdog/317313-21kthreadcore21:05:533
329940,0watchdog/30-21swapper/322:20:373
329940,0watchdog/30-21swapper/321:10:453
329940,0watchdog/30-21swapper/320:48:003
329940,0watchdog/30-21swapper/300:10:533
329940,0watchdog/30-21swapper/300:10:533
29815040,0irq/29-eth0-tx-7936-21ssh22:00:352
29815040,0irq/29-eth0-tx-0-21swapper/223:00:422
29815040,0irq/29-eth0-tx-0-21swapper/222:20:452
29815040,0irq/29-eth0-tx-0-21swapper/222:10:382
29815040,0irq/29-eth0-tx-0-21swapper/222:06:132
29815040,0irq/29-eth0-tx-0-21swapper/221:40:422
29815040,0irq/29-eth0-tx-0-21swapper/200:15:532
29815040,0irq/29-eth0-tx-0-21swapper/200:00:512
29815040,0irq/29-eth0-tx-0-21swapper/019:35:460
29805040,0irq/28-eth0-rx-0-21swapper/321:30:473
29805040,0irq/28-eth0-rx-0-21swapper/320:10:473
29805040,0irq/28-eth0-rx-0-21swapper/319:34:273
259940,0migration/26841-21munin-node19:30:492
259940,0migration/25598-21kthreadcore20:35:512
259940,0migration/228355-21kthreadcore00:20:522
259940,0migration/218887-21kernelversion00:35:532
259940,0migration/213871-21kthreadcore23:35:522
249940,0watchdog/20-21swapper/221:10:452
235049944,0cyclictest0-21swapper/223:45:422
235049943,0cyclictest3918-21awk21:20:502
235049943,0cyclictest3571-21lldpd20:54:322
235049943,0cyclictest3571-21lldpd20:01:022
235049943,0cyclictest3571-21lldpd19:24:012
235049943,0cyclictest3348-21awk19:50:492
235049943,0cyclictest32060-21awk19:25:502
235049943,0cyclictest28639-21awk20:30:472
235049943,0cyclictest21457-21awk20:25:482
234979944,0cyclictest0-21swapper/122:11:071
234979943,0cyclictest3571-21lldpd23:26:031
234979943,0cyclictest3571-21lldpd23:24:331
234979943,0cyclictest3571-21lldpd20:40:321
234979943,0cyclictest3571-21lldpd20:07:311
234979943,0cyclictest3571-21lldpd19:48:011
234979943,0cyclictest3250-21irqbalance22:56:301
234979943,0cyclictest3250-21irqbalance21:30:401
234979943,0cyclictest3250-21irqbalance20:28:201
234979943,0cyclictest32012-21awk19:25:501
234979943,0cyclictest3184-21gltestperf00:45:481
234979943,0cyclictest31174-21awk00:05:521
234979943,0cyclictest29025-21awk21:15:501
234979943,0cyclictest28733-21awk20:30:471
234979943,0cyclictest25209-21awk20:50:481
234979943,0cyclictest22492-21awk00:00:501
234979943,0cyclictest22263-21awk22:45:501
234979943,0cyclictest20073-21awk22:25:511
234979943,0cyclictest17672-21awk22:05:491
234979943,0cyclictest14283-21awk20:20:481
234979940,0cyclictest0-21swapper/123:52:391
234969943,0cyclictest3571-21lldpd22:02:030
234969943,0cyclictest3571-21lldpd21:05:310
234969943,0cyclictest3571-21lldpd19:48:310
234969943,0cyclictest3571-21lldpd00:35:350
234969943,0cyclictest3524-21snmpd23:25:590
234969943,0cyclictest3524-21snmpd21:36:290
234969943,0cyclictest2617-21awk22:15:500
234969943,0cyclictest25279-21awk23:25:340
234969943,0cyclictest24811-21awk19:20:490
234969943,0cyclictest24231-21awk21:50:500
234969943,0cyclictest11417-21awk22:20:490
234969940,0cyclictest24129-21munin-node20:50:460
234969940,0cyclictest0-21swapper/000:06:180
179940,0migration/19095-21taskset19:54:101
179940,0migration/17864-21irqrtprio00:10:521
179940,0migration/17864-21irqrtprio00:10:521
179940,0migration/16829-21kthreadcore22:35:511
179940,0migration/16001-21kthreadcore22:15:531
179940,0migration/131428-21aten_r1power_po20:55:451
179940,0migration/127327-21irqcore00:40:521
179940,0migration/12366-21kthreadcore20:10:531
179940,0migration/122970-21pmu-power20:45:571
179940,0migration/118261-21taskset21:26:151
179940,0migration/11797-21kthreadcore21:35:511
179940,0migration/114149-21if_eth1.319:35:491
179940,0migration/113683-21kthreadcore23:35:521
179940,0migration/111144-21kthreadcore21:40:521
179940,0migration/11004-21kthreadcore23:45:521
169940,0watchdog/125483-21grep19:40:521
169940,0watchdog/123027-21munin-node21:51:011
169940,0watchdog/121436-21ssh23:01:091
169940,0watchdog/121203-21fschecks_count21:10:451
169940,0watchdog/120334-21memory21:45:531
169940,0watchdog/118928-21port_sshpriv23:55:531
169940,0watchdog/117312-21kthreadcore21:05:531
169940,0watchdog/115588-21ssh23:17:371
169940,0watchdog/110321-21kthreadcore20:15:521
169940,0watchdog/110178-21runrttasks22:20:371
169940,0watchdog/10-21swapper/123:42:531
169940,0watchdog/10-21swapper/122:30:531
169940,0watchdog/10-21swapper/100:35:531
169940,0watchdog/10-21swapper/100:17:531
149940,0migration/0725-21kthreadcore20:10:530
149940,0migration/020738-21kthreadcore23:40:510
149940,0migration/018498-21kthreadcore23:55:500
8305030,0irq/26-0000:00:0-21swapper/221:15:342
8305030,0irq/26-0000:00:0-21swapper/220:55:392
339930,0migration/316632-21runrttasks20:00:423
329930,0watchdog/30-21swapper/320:05:443
329930,0watchdog/30-21swapper/319:55:443
29815030,0irq/29-eth0-tx-0-21swapper/019:30:500
29805030,0irq/28-eth0-rx-0-21swapper/320:20:483
29805030,0irq/28-eth0-rx-0-21swapper/319:25:453
259930,0migration/230589-21runrttasks20:07:372
249930,0watchdog/283050irq/26-0000:00:20:13:562
249930,0watchdog/20-21swapper/220:40:482
249930,0watchdog/20-21swapper/220:15:522
249930,0watchdog/20-21swapper/219:40:522
235049932,0cyclictest3571-21lldpd21:01:312
235049932,0cyclictest17962-21awk20:45:512
235049931,0cyclictest14319-21if_eth1.220:20:482
235049930,0cyclictest978-21pmu-power19:45:542
234979932,0cyclictest7241-21awk21:00:491
234979932,0cyclictest6840-21awk19:30:491
234979932,0cyclictest10538-21awk19:55:491
234969933,0cyclictest27432-21kworker/0:023:45:510
234969933,0cyclictest27432-21kworker/0:000:25:450
234969932,0cyclictest30341-21kthreadcore00:40:530
234969932,0cyclictest0-21swapper/021:05:520
234969931,0cyclictest0-21swapper/022:05:520
234969931,0cyclictest0-21swapper/021:15:540
234969931,0cyclictest0-21swapper/000:00:460
234969930,0cyclictest30558-21perl22:50:460
234969930,0cyclictest27236-21munin-run22:30:340
234969930,0cyclictest23600-21latency_hist00:20:350
234969930,0cyclictest19484-21grep20:00:500
169930,0watchdog/10-21swapper/123:30:531
169930,0watchdog/10-21swapper/122:40:491
234979921,0cyclictest163952sleep120:00:341
234969920,0cyclictest0-21swapper/021:55:450
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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