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2026-04-08 - 22:00
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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 376 highest latencies:
System rack1slot2.osadl.org (updated Wed Apr 08, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2375524937,0sleep10-21swapper/107:18:071
2375123627,0sleep20-21swapper/207:18:042
2376123322,0sleep00-21swapper/007:18:100
2378623228,0sleep30-21swapper/307:18:293
4160,0ktimersoftd/00-21swapper/011:24:520
35160,0ktimersoftd/30-21swapper/311:24:523
339960,0migration/39946-21sh12:47:033
339960,0migration/36065-21sh10:54:273
339960,0migration/327622-21sh10:29:323
339960,0migration/323401-21sh12:18:503
339960,0migration/318664-21munin-node12:34:573
339960,0migration/315833-21sh10:01:573
339960,0migration/313433-21sh09:41:313
29815060,0irq/29-eth0-tx-24175-21munin-node07:19:590
29815060,0irq/29-eth0-tx-20845-21munin-node08:24:560
29805060,0irq/28-eth0-rx-19521-21port_sshpriv07:35:023
29805060,0irq/28-eth0-rx-17941-21cut11:19:553
29805060,0irq/28-eth0-rx-10378-21memory11:50:003
239599960,0cyclictest0-21swapper/011:48:400
149960,0migration/019931-21kthreadcore10:59:590
149960,0migration/013391-21kthreadcore12:29:590
4150,0ktimersoftd/00-21swapper/010:15:290
35150,0ktimersoftd/30-21swapper/307:25:473
339950,0migration/38831-21missed_timers08:35:013
339950,0migration/38750-21kthreadcore08:59:583
339950,0migration/38695-21kthreadcore12:09:573
339950,0migration/36236-21aten_r1power_cu07:29:513
339950,0migration/3335-21kthreadcore09:34:583
339950,0migration/329507-21kthreadcore12:39:593
339950,0migration/327821-21latency_hist07:44:413
339950,0migration/326883-21kthreadcore07:19:583
339950,0migration/325328-21hwlatdetect08:04:553
339950,0migration/324715-21kthreadcore08:24:593
339950,0migration/322856-21kthreadcore07:59:583
339950,0migration/31879-21latency_hist10:14:413
339950,0migration/316989-21taskset08:43:073
339950,0migration/314549-21kthreadcore10:39:583
339950,0migration/31441-21kthreadcore08:54:583
339950,0migration/311753-21idleruntime10:19:563
329950,0watchdog/38361-21ssh12:28:413
329950,0watchdog/314746-21munin-node08:19:563
329950,0watchdog/3133582sleep308:19:123
329950,0watchdog/311972-21munin-node09:24:573
329950,0watchdog/30-21swapper/309:45:013
329950,0watchdog/30-21swapper/309:09:563
29815050,0irq/29-eth0-tx-30420-21ssh09:50:412
29815050,0irq/29-eth0-tx-27869-21munin-node07:44:510
29815050,0irq/29-eth0-tx-27644-21ntpq10:45:032
29815050,0irq/29-eth0-tx-25609-21kthreadcore12:19:592
29815050,0irq/29-eth0-tx-22278-21cut09:29:582
29815050,0irq/29-eth0-tx-1994-21munin-node10:14:572
29815050,0irq/29-eth0-tx-11972-21munin-node09:24:552
29815050,0irq/29-eth0-tx-0-21swapper/211:22:042
29815050,0irq/29-eth0-tx-0-21swapper/211:16:142
29815050,0irq/29-eth0-tx-0-21swapper/210:53:022
29815050,0irq/29-eth0-tx-0-21swapper/210:36:222
29815050,0irq/29-eth0-tx-0-21swapper/210:13:182
29815050,0irq/29-eth0-tx-0-21swapper/209:39:232
29815050,0irq/29-eth0-tx-0-21swapper/009:20:340
29815050,0irq/29-eth0-tx-0-21swapper/008:49:530
29805050,0irq/28-eth0-rx-26587-21kthreadcore09:49:583
29805050,0irq/28-eth0-rx-26099-21kthreadcore12:19:593
29805050,0irq/28-eth0-rx-22021-21kthreadcore11:39:593
29805050,0irq/28-eth0-rx-17989-21fschecks_time10:04:553
29805050,0irq/28-eth0-rx-15675-40yum-updatesd-he11:16:103
29805050,0irq/28-eth0-rx-15222-21cut11:54:593
29805050,0irq/28-eth0-rx-1303-21cat12:04:593
29805050,0irq/28-eth0-rx-10836-21munin-node11:34:533
29805050,0irq/28-eth0-rx-0-21swapper/311:29:593
29805050,0irq/28-eth0-rx-0-21swapper/311:10:343
29805050,0irq/28-eth0-rx-0-21swapper/311:04:533
29805050,0irq/28-eth0-rx-0-21swapper/310:54:593
29805050,0irq/28-eth0-rx-0-21swapper/310:30:043
29805050,0irq/28-eth0-rx-0-21swapper/309:57:443
27150,0ktimersoftd/20-21swapper/211:24:522
259950,0migration/29541-21kthreadcore12:09:572
259950,0migration/25575-21kthreadcore12:44:592
259950,0migration/24329-21sh11:49:462
259950,0migration/229955-21kthreadcore09:14:592
259950,0migration/22068-21sh11:29:462
259950,0migration/215915-21kthreadcore10:20:002
259950,0migration/212911-21kthreadcore08:39:582
249950,0watchdog/231907-21aten_r1power_po08:54:522
249950,0watchdog/218343-21iostat07:59:562
239619954,0cyclictest16521-21awk12:14:582
239619950,0cyclictest0-21swapper/212:07:452
239619950,0cyclictest0-21swapper/211:01:152
239609955,0cyclictest0-21swapper/112:37:371
239609955,0cyclictest0-21swapper/112:19:011
239609955,0cyclictest0-21swapper/111:53:381
239609955,0cyclictest0-21swapper/111:20:031
239609955,0cyclictest0-21swapper/108:55:101
239609950,0cyclictest0-21swapper/112:10:491
239609950,0cyclictest0-21swapper/110:13:401
239609950,0cyclictest0-21swapper/109:34:161
239599955,0cyclictest0-21swapper/011:55:260
239599955,0cyclictest0-21swapper/011:19:580
239599955,0cyclictest0-21swapper/010:06:300
239599950,0cyclictest0-21swapper/012:42:440
239599950,0cyclictest0-21swapper/008:09:500
21459250,0sleep021558-21port_sshpriv12:15:030
19150,0ktimersoftd/10-21swapper/111:24:521
179950,0migration/18821-21munin-node09:59:551
179950,0migration/13358-21irqcore10:14:571
179950,0migration/128083-21aten_r1power_po10:29:541
179950,0migration/124699-21kthreadcore10:45:001
179950,0migration/120006-21kthreadcore10:04:591
179950,0migration/112839-21taskset07:30:091
179950,0migration/112532-21kthreadcore10:19:591
179950,0migration/110746-21latency_hist11:34:421
169950,0watchdog/10-21swapper/109:51:131
149950,0migration/09402-21kthreadcore10:54:580
149950,0migration/09264-21kthreadcore12:09:570
149950,0migration/04757-21kthreadcore09:55:000
149950,0migration/04066-21kthreadcore08:54:590
149950,0migration/03261-21fschecks_count07:49:550
149950,0migration/032431-21kthreadcore09:15:000
149950,0migration/031934-21latency_hist09:54:410
149950,0migration/03167-21cpuspeed_turbos08:34:540
149950,0migration/031141-21kthreadcore10:09:590
149950,0migration/028955-21hddtemp_smartct10:29:560
149950,0migration/02789-21cpuspeed_turbos12:44:540
149950,0migration/027606-21kthreadcore08:04:580
149950,0migration/027144-21pmu-power09:10:030
149950,0migration/02639-21fschecks_count11:29:550
149950,0migration/02483-21kthreadcore10:49:580
149950,0migration/023767-21kthreadcore10:24:590
149950,0migration/023731-21kthreadcore09:29:590
149950,0migration/023656-21kthreadcore10:45:000
149950,0migration/022335-21kthreadcore07:59:580
149950,0migration/020640-21ksmtuned07:39:470
149950,0migration/020082-21taskset07:35:560
149950,0migration/020074-21kthreadcore12:34:590
149950,0migration/019769-21kthreadcore08:44:590
149950,0migration/015897-21kthreadcore10:20:000
149950,0migration/013714-21kthreadcore11:35:000
149950,0migration/011927-21kthreadcore08:14:590
149950,0migration/011773-21kthreadcore08:39:580
149950,0migration/011518-21sh11:51:110
149950,0migration/011135-21kthreadcore10:00:000
149950,0migration/010476-21pmu-power10:35:030
149950,0migration/010305-21kthreadcore08:59:580
339940,0migration/34570-21kthreadcore08:09:593
339940,0migration/316831-21kthreadcore09:04:583
339940,0migration/314769-21kthreadcore07:54:583
339940,0migration/310138-21if_eth012:29:573
329940,0watchdog/39336-21taskset07:50:243
329940,0watchdog/30-21swapper/311:44:493
329940,0watchdog/30-21swapper/310:14:413
329940,0watchdog/30-21swapper/309:16:133
29815040,0irq/29-eth0-tx-21144-21rt-features09:45:042
29815040,0irq/29-eth0-tx-20398-21ssh10:24:562
29815040,0irq/29-eth0-tx-0-21swapper/211:55:222
29815040,0irq/29-eth0-tx-0-21swapper/211:34:462
29815040,0irq/29-eth0-tx-0-21swapper/211:10:012
29815040,0irq/29-eth0-tx-0-21swapper/211:04:452
29815040,0irq/29-eth0-tx-0-21swapper/210:40:022
29815040,0irq/29-eth0-tx-0-21swapper/209:39:532
29815040,0irq/29-eth0-tx-0-21swapper/007:54:520
29815040,0irq/29-eth0-tx-0-21swapper/007:29:590
29805040,0irq/28-eth0-rx-26666-21ntpq07:40:013
29805040,0irq/28-eth0-rx-0-21swapper/312:02:253
29805040,0irq/28-eth0-rx-0-21swapper/311:00:233
29805040,0irq/28-eth0-rx-0-21swapper/310:44:573
29805040,0irq/28-eth0-rx-0-21swapper/310:36:003
29805040,0irq/28-eth0-rx-0-21swapper/309:29:583
29805040,0irq/28-eth0-rx-0-21swapper/309:19:583
29805040,0irq/28-eth0-rx-0-21swapper/308:29:543
29805040,0irq/28-eth0-rx-0-21swapper/308:29:543
28020240,0sleep330427-21grep08:50:003
259940,0migration/29856-21latency_hist07:54:422
259940,0migration/25704-21kthreadcore07:49:592
259940,0migration/24370-21kthreadcore07:24:592
259940,0migration/24113-21kthreadcore09:55:002
259940,0migration/23938-21kthreadcore08:09:592
259940,0migration/230527-21munin-node08:50:002
259940,0migration/230071-21kthreadcore08:29:582
259940,0migration/230071-21kthreadcore08:29:582
259940,0migration/226141-21munin-node11:40:092
259940,0migration/223971-21kthreadcore07:39:582
259940,0migration/221971-21cpuspeed_turbos11:59:542
259940,0migration/221088-21aten_r1power_cu09:09:532
259940,0migration/220032-21runrttasks07:35:222
259940,0migration/219969-21kthreadcore08:44:592
259940,0migration/21789-21munin-node12:24:582
259940,0migration/217353-21munin-node10:04:532
259940,0migration/210246-21kthreadcore10:00:002
249940,0watchdog/215089-21ntpq12:30:012
249940,0watchdog/20-21swapper/210:54:532
249940,0watchdog/20-21swapper/207:44:562
239619943,0cyclictest7314-21awk07:29:552
239619943,0cyclictest3571-21lldpd12:39:452
239619943,0cyclictest3571-21lldpd12:35:152
239619943,0cyclictest3571-21lldpd11:44:452
239619943,0cyclictest3571-21lldpd09:19:432
239619943,0cyclictest3571-21lldpd08:59:442
239619943,0cyclictest3571-21lldpd08:16:432
239619943,0cyclictest3571-21lldpd08:05:132
239619943,0cyclictest29176-21awk10:29:582
239609944,0cyclictest0-21swapper/111:40:041
239609944,0cyclictest0-21swapper/107:49:441
239609943,0cyclictest3717-21awk12:44:581
239609943,0cyclictest3571-21lldpd07:55:131
239609943,0cyclictest3524-21snmpd12:21:361
239609943,0cyclictest3524-21snmpd11:55:361
239609943,0cyclictest3524-21snmpd11:45:361
239609943,0cyclictest3524-21snmpd11:17:051
239609943,0cyclictest3524-21snmpd11:11:051
239609943,0cyclictest3524-21snmpd11:03:051
239609943,0cyclictest3524-21snmpd10:53:501
239609943,0cyclictest3524-21snmpd09:57:191
239609943,0cyclictest3524-21snmpd09:14:481
239609943,0cyclictest3524-21snmpd08:40:481
239609943,0cyclictest32522-21awk07:24:571
239609943,0cyclictest26847-21find07:40:021
239609943,0cyclictest2405-21sadc07:49:411
239609943,0cyclictest18181-21awk07:59:551
239599944,0cyclictest0-21swapper/012:29:010
239599944,0cyclictest0-21swapper/011:41:530
239599943,0cyclictest9698-21awk11:14:560
239599943,0cyclictest29224-21awk08:29:570
239599943,0cyclictest29224-21awk08:29:570
239599943,0cyclictest20830-21sadc09:09:410
239599940,0cyclictest5983-21crond07:29:410
179940,0migration/19707-21kthreadcore10:54:591
179940,0migration/17065-21kthreadcore10:34:591
179940,0migration/13927-21kthreadcore08:09:591
179940,0migration/129756-21kthreadcore08:04:581
179940,0migration/128712-21fschecks_time08:29:541
179940,0migration/128712-21fschecks_time08:29:541
179940,0migration/127084-21fschecks_time12:39:551
179940,0migration/126145-21kthreadcore08:24:591
179940,0migration/12544-21df_inode11:29:541
179940,0migration/124182-21aten_r1power_cu07:19:521
179940,0migration/123978-21munin-node11:04:531
179940,0migration/122292-21kthreadcore10:24:581
179940,0migration/121779-21runrttasks11:59:531
179940,0migration/117187-21kthreadcore08:19:581
179940,0migration/114944-21aten_r1power_en09:44:531
179940,0migration/111478-21kthreadcore09:39:591
169940,0watchdog/15480-21ssh12:07:091
169940,0watchdog/14418-21ssh09:36:051
169940,0watchdog/122078-21cat09:09:561
169940,0watchdog/120659-21ssh10:43:051
169940,0watchdog/119475-21ssh09:27:051
169940,0watchdog/10-21swapper/112:30:011
169940,0watchdog/10-21swapper/108:35:001
329930,0watchdog/30-21swapper/308:44:523
29815030,0irq/29-eth0-tx-0-21swapper/008:19:530
249930,0watchdog/20-21swapper/209:05:002
249930,0watchdog/20-21swapper/208:35:002
239619932,0cyclictest3571-21lldpd08:24:432
239619932,0cyclictest19749-21processes08:20:022
239619930,0cyclictest0-21swapper/207:19:432
239609932,0cyclictest3524-21snmpd09:21:151
239609930,0cyclictest18041-21perl08:44:551
239609930,0cyclictest0-21swapper/109:04:541
239599932,0cyclictest3524-21snmpd12:01:450
239599932,0cyclictest30679-21awk09:34:560
239599932,0cyclictest30314-21sensors12:20:040
239599932,0cyclictest2847-21diskmemload09:40:110
239599932,0cyclictest18358-21kthreadcore09:45:000
239599932,0cyclictest15747-21cut10:39:590
239599932,0cyclictest13065-21awk09:24:560
169930,0watchdog/16838-21aten2.4-expect08:59:521
169930,0watchdog/10-21swapper/112:24:491
169930,0watchdog/10-21swapper/108:50:041
169930,0watchdog/10-21swapper/108:14:561
149930,0migration/031279-21runrttasks11:07:490
239609920,0cyclictest0-21swapper/107:34:531
239599920,0cyclictest32127-21latency_hist11:09:420
239599920,0cyclictest30297-21sh12:04:450
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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