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2026-05-03 - 11:41
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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 May 03, 2026 00:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1941623728,0sleep10-21swapper/119:19:251
1936823525,0sleep20-21swapper/219:18:502
1933123322,0sleep00-21swapper/019:18:280
1269623127,0sleep30-21swapper/319:16:473
19685991515,0cyclictest3524-21snmpd20:31:280
8305060,0irq/26-0000:00:26665-21proc_pri00:22:052
339960,0migration/331812-21sh23:48:343
339960,0migration/331734-21munin-node22:16:593
339960,0migration/329182-21sh22:13:343
339960,0migration/328589-21irqcore20:11:593
339960,0migration/327581-21sh00:23:183
339960,0migration/323716-21munin-node00:41:593
339960,0migration/31707-21sh22:54:433
29815060,0irq/29-eth0-tx-12851-21munin-node20:01:590
29805060,0irq/28-eth0-rx-3052-21yum23:12:093
149960,0migration/05948-21sh21:22:500
149960,0migration/012211-21sh00:32:250
149960,0migration/010655-21sh23:00:110
8305050,0irq/26-0000:00:16342-21munin-run20:26:433
8305050,0irq/26-0000:00:0-21swapper/223:21:432
339950,0migration/37952-21munin-node22:21:583
339950,0migration/37068-21kthreadcore21:42:013
339950,0migration/35286-21cpuspeed_turbos23:16:553
339950,0migration/34953-21kthreadcore00:12:013
339950,0migration/332381-21munin-node00:46:583
339950,0migration/331200-21kthreadcore00:07:023
339950,0migration/331124-21munin-node23:31:553
339950,0migration/329167-21aten_r1power_en00:26:553
339950,0migration/327639-21munin-node19:26:563
339950,0migration/325885-21kthreadcore19:47:003
339950,0migration/325190-21gltestperf22:31:583
339950,0migration/322656-21latency21:12:023
339950,0migration/320228-21kthreadcore20:26:593
339950,0migration/317602-21munin-node21:31:563
339950,0migration/313604-21kthreadcore23:02:003
329950,0watchdog/37260-21sh23:36:463
329950,0watchdog/332439-21if_eth121:21:583
329950,0watchdog/322185-21grep00:02:033
329950,0watchdog/30-21swapper/323:22:023
329950,0watchdog/30-21swapper/321:27:023
29815050,0irq/29-eth0-tx-29966-21iostat_ios23:11:582
29815050,0irq/29-eth0-tx-29127-21munin-node00:27:052
29815050,0irq/29-eth0-tx-26687-21ssh00:06:432
29815050,0irq/29-eth0-tx-25188-21kthreadcore22:12:012
29815050,0irq/29-eth0-tx-25051-21cat00:42:022
29815050,0irq/29-eth0-tx-20352-21kthreadcore22:47:012
29815050,0irq/29-eth0-tx-18254-21munin-node00:01:582
29815050,0irq/29-eth0-tx-16350-21munin-node19:42:040
29815050,0irq/29-eth0-tx-0-21swapper/223:58:182
29815050,0irq/29-eth0-tx-0-21swapper/223:46:552
29815050,0irq/29-eth0-tx-0-21swapper/222:22:432
29815050,0irq/29-eth0-tx-0-21swapper/222:20:482
29815050,0irq/29-eth0-tx-0-21swapper/222:05:032
29815050,0irq/29-eth0-tx-0-21swapper/200:51:052
29815050,0irq/29-eth0-tx-0-21swapper/200:21:132
29815050,0irq/29-eth0-tx-0-21swapper/200:14:482
29815050,0irq/29-eth0-tx-0-21swapper/020:16:250
29805050,0irq/28-eth0-rx-5921-21kthreadcore21:02:013
29805050,0irq/28-eth0-rx-3722-21gltestperf22:56:573
29805050,0irq/28-eth0-rx-27039-21ssh21:54:013
29805050,0irq/28-eth0-rx-24855-21cut21:16:573
29805050,0irq/28-eth0-rx-22570-21cpuspeed_turbos23:26:553
29805050,0irq/28-eth0-rx-20560-21entropy23:06:573
29805050,0irq/28-eth0-rx-18467-21cut22:07:013
29805050,0irq/28-eth0-rx-17607-21kthreadcore00:37:023
29805050,0irq/28-eth0-rx-14716-21kthreadcore21:47:033
29805050,0irq/28-eth0-rx-0-21swapper/323:44:233
29805050,0irq/28-eth0-rx-0-21swapper/322:36:563
29805050,0irq/28-eth0-rx-0-21swapper/321:59:533
29805050,0irq/28-eth0-rx-0-21swapper/321:36:573
29805050,0irq/28-eth0-rx-0-21swapper/320:09:033
29805050,0irq/28-eth0-rx-0-21swapper/300:31:443
29805050,0irq/28-eth0-rx-0-21swapper/300:17:013
259950,0migration/27106-21timerwakeupswit22:37:082
259950,0migration/230992-21kthreadcore22:52:012
259950,0migration/223526-21kthreadcore20:07:012
259950,0migration/219073-21kthreadcore21:12:012
259950,0migration/217908-21timerandwakeup23:02:072
249950,0watchdog/23034-21cut20:36:582
249950,0watchdog/220229-21kthreadcore22:27:022
249950,0watchdog/212678-21grep21:27:022
196879955,0cyclictest0-21swapper/223:26:572
196879950,0cyclictest0-21swapper/222:07:012
196869955,0cyclictest0-21swapper/122:43:161
196869955,0cyclictest0-21swapper/122:16:091
196869950,0cyclictest0-21swapper/122:52:341
196869950,0cyclictest0-21swapper/122:33:581
196869950,0cyclictest0-21swapper/100:43:241
179950,0migration/13403-21fschecks_count22:56:571
179950,0migration/128296-21munin-node19:26:591
169950,0watchdog/121471-21cut21:12:021
149950,0migration/0806-21taskset22:52:160
149950,0migration/07689-21sh23:52:170
149950,0migration/07520-21fschecks_count22:21:560
149950,0migration/03592-21munin-node21:01:590
149950,0migration/030274-21kthreadcore21:57:000
149950,0migration/030125-21sh22:16:110
149950,0migration/028892-21kthreadcore19:27:000
149950,0migration/026289-21kthreadcore20:31:590
149950,0migration/024243-21kthreadcore23:27:000
149950,0migration/024195-21sh22:31:490
149950,0migration/022812-21kthreadcore19:22:000
149950,0migration/022656-21kthreadcore20:51:590
149950,0migration/018714-21kthreadcore20:47:010
149950,0migration/017952-21irqcore21:31:580
149950,0migration/01776-21kthreadcore23:12:000
149950,0migration/017486-21kthreadcore22:27:010
149950,0migration/017320-21munin-node21:11:570
149950,0migration/017275-21kthreadcore23:02:010
149950,0migration/015890-21sendmail_mailtr21:07:040
149950,0migration/015424-21pmu-power22:42:040
149950,0migration/013211-21latency_hist22:06:440
149950,0migration/012024-21sh22:03:580
149950,0migration/011654-21kthreadcore20:22:000
339940,0migration/39724-21fschecks_count19:36:563
339940,0migration/34088-21kthreadcore20:17:003
339940,0migration/330385-21taskset20:32:453
339940,0migration/320476-21kthreadcore19:42:013
339940,0migration/315508-21kthreadcore20:47:013
339940,0migration/310099-21kthreadcore20:42:013
329940,0watchdog/36093-21fschecks_count19:56:583
329940,0watchdog/320228-21kthreadcore22:27:023
329940,0watchdog/316682-21ssh22:44:103
329940,0watchdog/30-21swapper/323:51:473
329940,0watchdog/30-21swapper/322:01:583
329940,0watchdog/30-21swapper/319:55:543
29815040,0irq/29-eth0-tx-22709-21ntp_states21:32:022
29815040,0irq/29-eth0-tx-0-21swapper/223:51:532
29815040,0irq/29-eth0-tx-0-21swapper/223:41:512
29815040,0irq/29-eth0-tx-0-21swapper/223:31:592
29815040,0irq/29-eth0-tx-0-21swapper/223:18:282
29815040,0irq/29-eth0-tx-0-21swapper/223:07:012
29815040,0irq/29-eth0-tx-0-21swapper/222:41:512
29815040,0irq/29-eth0-tx-0-21swapper/221:46:452
29815040,0irq/29-eth0-tx-0-21swapper/221:41:472
29815040,0irq/29-eth0-tx-0-21swapper/221:37:102
29815040,0irq/29-eth0-tx-0-21swapper/021:16:590
29815040,0irq/29-eth0-tx-0-21swapper/020:56:550
29815040,0irq/29-eth0-tx-0-21swapper/019:47:010
29805040,0irq/28-eth0-rx-0-21swapper/323:56:483
29805040,0irq/28-eth0-rx-0-21swapper/322:46:483
29805040,0irq/28-eth0-rx-0-21swapper/321:06:543
259940,0migration/29493-21kthreadcore00:32:022
259940,0migration/28253-21latency21:02:012
259940,0migration/26746-21fschecks_time20:41:572
259940,0migration/26582-21hddtemp_smartct19:56:582
259940,0migration/229721-21kthreadcore19:27:002
259940,0migration/228167-21latency_hist21:56:442
259940,0migration/22742-21fschecks_time20:16:562
259940,0migration/218788-21kthreadcore00:37:032
259940,0migration/216310-21runrttasks21:07:432
259940,0migration/215220-21kthreadcore20:47:002
259940,0migration/214622-21kthreadcore20:22:002
249940,0watchdog/230303-21python21:17:062
249940,0watchdog/230195-21kthreadcore20:57:022
249940,0watchdog/20-21swapper/223:36:462
249940,0watchdog/20-21swapper/219:46:582
196879944,0cyclictest0-21swapper/220:27:042
196879943,0cyclictest3875-21awk22:56:582
196879943,0cyclictest3571-21lldpd21:51:532
196879943,0cyclictest3571-21lldpd20:33:212
196879943,0cyclictest3571-21lldpd20:12:522
196879943,0cyclictest3524-21snmpd21:21:462
196879943,0cyclictest3524-21snmpd19:36:452
196879943,0cyclictest3115-21grep19:31:592
196879943,0cyclictest25330-21awk22:32:002
196879943,0cyclictest13899-21awk20:01:582
196869944,0cyclictest31065-21diskmemload21:46:591
196869944,0cyclictest0-21swapper/123:08:301
196869944,0cyclictest0-21swapper/121:52:021
196869943,0cyclictest3571-21lldpd23:21:251
196869943,0cyclictest3571-21lldpd20:51:521
196869943,0cyclictest3571-21lldpd20:36:521
196869943,0cyclictest3571-21lldpd00:34:261
196869943,0cyclictest3250-21irqbalance23:27:101
196869943,0cyclictest3250-21irqbalance23:03:401
196869943,0cyclictest3250-21irqbalance22:27:101
196869943,0cyclictest3250-21irqbalance22:24:201
196869943,0cyclictest3250-21irqbalance21:37:191
196869943,0cyclictest3250-21irqbalance20:46:491
196869943,0cyclictest3250-21irqbalance20:42:591
196869943,0cyclictest3250-21irqbalance20:32:591
196869943,0cyclictest3250-21irqbalance00:11:501
196869943,0cyclictest3250-21irqbalance00:07:001
196869943,0cyclictest30497-21sadc19:51:431
196869943,0cyclictest23538-21sadc20:31:431
196869943,0cyclictest21615-21awk00:22:001
196869943,0cyclictest21204-21awk20:06:591
196869943,0cyclictest21026-21awk19:21:581
196869943,0cyclictest19356-21awk00:02:001
196869943,0cyclictest1934-21ps22:36:591
196869943,0cyclictest13914-21awk20:01:581
196859944,0cyclictest13249-21irqrtprio00:17:010
196859944,0cyclictest0-21swapper/023:06:570
196859943,0cyclictest7013-21awk20:41:590
196859943,0cyclictest6771-21awk19:57:000
196859943,0cyclictest3571-21lldpd22:21:240
196859943,0cyclictest3524-21snmpd00:37:180
196859943,0cyclictest3189-21awk21:41:580
196859943,0cyclictest30209-21awk00:26:590
196859943,0cyclictest23792-21awk00:41:590
196859943,0cyclictest21537-21awk00:21:590
196859943,0cyclictest19031-21awk22:46:590
196859940,0cyclictest0-21swapper/023:38:280
196859940,0cyclictest0-21swapper/021:40:420
196859940,0cyclictest0-21swapper/000:50:410
179940,0migration/19926-21kthreadcore21:27:011
179940,0migration/18899-21kthreadcore22:02:031
179940,0migration/1701-21kthreadcore19:52:001
179940,0migration/16587-21taskset23:35:341
179940,0migration/15711-21aten_r1power_po19:56:561
179940,0migration/13296-21kthreadcore00:47:021
179940,0migration/130979-21taskset21:20:511
179940,0migration/13044-21fschecks_time21:01:571
179940,0migration/130349-21kthreadcore23:11:581
179940,0migration/122076-21kthreadcore19:42:011
179940,0migration/122007-21ntp_kernel_pll_23:42:031
179940,0migration/120936-21kthreadcore21:32:001
179940,0migration/119352-21kthreadcore23:22:021
179940,0migration/11770-21latency_hist19:31:431
179940,0migration/113992-21kthreadcore21:07:001
179940,0migration/112350-21fschecks_count00:16:571
179940,0migration/111319-21kthreadcore23:57:001
169940,0watchdog/19334-21ssh21:43:341
169940,0watchdog/16076-21ssh21:23:141
169940,0watchdog/129102-21sh00:26:511
169940,0watchdog/124561-21munin-node23:46:551
169940,0watchdog/114430-21if_eth122:06:581
169940,0watchdog/10-21swapper/123:51:471
169940,0watchdog/10-21swapper/121:57:021
169940,0watchdog/10-21swapper/120:16:581
169940,0watchdog/10-21swapper/100:37:031
149940,0migration/015947-21runrttasks19:39:520
149940,0migration/015110-21kthreadcore21:47:030
149940,0migration/01504-21kthreadcore19:52:000
4130,0ktimersoftd/01720-21sh00:08:490
329930,0watchdog/30-21swapper/320:57:023
329930,0watchdog/30-21swapper/320:56:343
329930,0watchdog/30-21swapper/320:36:583
329930,0watchdog/30-21swapper/319:31:583
29815030,0irq/29-eth0-tx-0-21swapper/019:32:010
29805030,0irq/28-eth0-rx-0-21swapper/320:01:543
29805030,0irq/28-eth0-rx-0-21swapper/319:21:543
249930,0watchdog/20-21swapper/219:21:542
196879932,0cyclictest3571-21lldpd19:51:512
196879932,0cyclictest3524-21snmpd20:52:002
196879932,0cyclictest3524-21snmpd19:41:452
196869932,0cyclictest3524-21snmpd22:16:501
196869932,0cyclictest27666-21aten2.4-expect20:56:561
196869932,0cyclictest17878-21munin-node22:46:561
196869932,0cyclictest15351-21sensors19:37:041
196869930,0cyclictest27673-21diskstats20:11:551
196859932,0cyclictest8867-21awk21:26:590
196859932,0cyclictest3571-21lldpd23:50:260
196859932,0cyclictest3524-21snmpd23:57:100
196859932,0cyclictest3524-21snmpd23:18:470
196859932,0cyclictest3524-21snmpd22:41:170
196859932,0cyclictest3524-21snmpd20:40:150
196859932,0cyclictest2867-21kthreadcore23:32:010
196859932,0cyclictest2786-21tune2fs20:16:560
196859932,0cyclictest27019-21sadc20:11:430
196859932,0cyclictest16347-21cat23:41:560
196859932,0cyclictest14905-21awk23:22:000
196859930,0cyclictest18938-21perl00:01:580
169930,0watchdog/10-21swapper/123:38:141
169930,0watchdog/10-21swapper/120:21:541
149930,0migration/010989-21sh00:15:150
196859920,0cyclictest0-21swapper/021:51:510
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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