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2026-04-07 - 04:13
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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 Tue Apr 07, 2026 00:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
670925352,0sleep00-21swapper/019:16:020
667525039,0sleep30-21swapper/319:15:413
696723627,0sleep20-21swapper/219:19:002
662622824,0sleep10-21swapper/119:15:071
7088991212,0cyclictest0-21swapper/021:20:300
70909960,0cyclictest0-21swapper/222:33:252
70909960,0cyclictest0-21swapper/222:10:142
70909960,0cyclictest0-21swapper/222:05:022
70909960,0cyclictest0-21swapper/221:24:122
35160,0ktimersoftd/30-21swapper/323:28:223
339960,0migration/38680-21sh00:36:523
339960,0migration/34504-21sh22:43:543
339960,0migration/332655-21munin-node22:19:563
339960,0migration/311115-21sh23:43:433
29805060,0irq/28-eth0-rx-24893-21python00:44:563
149960,0migration/08151-21sh22:07:280
149960,0migration/0528-21sh00:33:420
149960,0migration/04646-21sh23:58:390
149960,0migration/02535-21sh23:39:070
149960,0migration/021022-21sh21:38:370
149960,0migration/015205-21sh00:22:250
149960,0migration/012599-21sh00:01:450
70909955,0cyclictest0-21swapper/223:31:452
70909955,0cyclictest0-21swapper/223:15:112
70909955,0cyclictest0-21swapper/222:54:512
70909955,0cyclictest0-21swapper/222:15:262
70909955,0cyclictest0-21swapper/221:51:382
70909950,0cyclictest0-21swapper/223:50:212
70909950,0cyclictest0-21swapper/223:50:212
70899955,0cyclictest0-21swapper/123:16:201
70899955,0cyclictest0-21swapper/123:05:181
70899955,0cyclictest0-21swapper/120:39:571
70899950,0cyclictest0-21swapper/122:19:161
70899950,0cyclictest0-21swapper/122:00:021
70899950,0cyclictest0-21swapper/121:44:071
70899950,0cyclictest0-21swapper/100:43:321
70889950,0cyclictest0-21swapper/021:54:010
339950,0migration/39843-21taskset20:24:523
339950,0migration/38308-21munin-node23:04:493
339950,0migration/37852-21kthreadcore19:39:513
339950,0migration/37424-21aten_r1power_po19:19:443
339950,0migration/332081-21taskset19:56:323
339950,0migration/324910-21sh00:29:443
339950,0migration/324745-21latency_hist00:29:343
339950,0migration/323799-21irqrtprio22:54:513
339950,0migration/323282-21kthreadcore22:34:523
339950,0migration/322803-21if_eth119:29:493
339950,0migration/320712-21kthreadcore19:49:503
339950,0migration/320277-21kthreadcore20:09:533
339950,0migration/319620-21fschecks_time21:19:473
339950,0migration/317895-21kthreadcore21:34:533
339950,0migration/317849-21aten_r1power_cu22:14:473
339950,0migration/316679-21kthreadcore20:54:523
339950,0migration/316014-21ntp_kernel_pll_00:39:533
339950,0migration/311936-21runrttasks21:32:593
339950,0migration/311580-21munin-node23:59:563
339950,0migration/311053-21aten_r1power_fr19:44:453
339950,0migration/31029-21munin-node23:35:003
329950,0watchdog/34023-21iostat_ios22:24:493
329950,0watchdog/332609-21telnet19:59:453
329950,0watchdog/331645-21ntp_states20:39:533
329950,0watchdog/317048-21irqrtprio21:54:493
329950,0watchdog/315932-21cut21:14:533
329950,0watchdog/315434-21cut20:29:533
329950,0watchdog/313852-21cpu22:49:453
329950,0watchdog/312412-21head22:29:493
29815050,0irq/29-eth0-tx-6688-21ssh00:17:552
29815050,0irq/29-eth0-tx-4221-21munin-node21:09:540
29815050,0irq/29-eth0-tx-29149-21munin-node20:19:460
29815050,0irq/29-eth0-tx-0-21swapper/222:34:522
29815050,0irq/29-eth0-tx-0-21swapper/221:41:552
29815050,0irq/29-eth0-tx-0-21swapper/021:01:400
29805050,0irq/28-eth0-rx-7508-21munin-node20:04:503
29805050,0irq/28-eth0-rx-31663-21if_err_eth1.221:44:463
29805050,0irq/28-eth0-rx-3073-21kthreadcore23:19:513
29805050,0irq/28-eth0-rx-29560-21fschecks_time19:34:473
29805050,0irq/28-eth0-rx-24985-21diskstats23:14:483
29805050,0irq/28-eth0-rx-22702-21hwlatdetect21:39:483
29805050,0irq/28-eth0-rx-18869-21taskset23:46:183
29805050,0irq/28-eth0-rx-1397-21smartctl20:44:473
29805050,0irq/28-eth0-rx-13737-21ntpdc20:49:533
29805050,0irq/28-eth0-rx-13480-21sed21:50:003
29805050,0irq/28-eth0-rx-1205-21kthreadcore22:59:533
29805050,0irq/28-eth0-rx-0-21swapper/323:30:143
29805050,0irq/28-eth0-rx-0-21swapper/322:44:523
29805050,0irq/28-eth0-rx-0-21swapper/322:09:523
29805050,0irq/28-eth0-rx-0-21swapper/322:08:593
29805050,0irq/28-eth0-rx-0-21swapper/321:29:183
29805050,0irq/28-eth0-rx-0-21swapper/300:19:473
29805050,0irq/28-eth0-rx-0-21swapper/300:14:483
29805050,0irq/28-eth0-rx-0-21swapper/300:06:333
259950,0migration/28004-21sh23:21:022
259950,0migration/27406-21munin-node19:19:442
259950,0migration/232243-21kthreadcore21:04:512
259950,0migration/22942-21kthreadcore19:59:512
259950,0migration/229253-21latency_hist21:04:342
259950,0migration/22454-21irqcore00:34:512
259950,0migration/222743-21sh21:56:122
259950,0migration/218079-21sh00:44:052
259950,0migration/217363-21kthreadcore21:34:532
259950,0migration/214930-21munin-node20:09:462
259950,0migration/210858-21kthreadcore00:19:532
179950,0migration/16364-21munin-node23:59:501
179950,0migration/14660-21kthreadcore22:24:501
179950,0migration/14221-21taskset22:43:061
179950,0migration/12965-21munin-node21:04:541
179950,0migration/127400-21gltestperf22:19:491
179950,0migration/125419-21kthreadcore19:29:511
179950,0migration/124220-21kthreadcore22:54:521
179950,0migration/121727-21sh22:53:411
179950,0migration/121416-21idleruntime-cro21:39:341
169950,0watchdog/18134-21ssh22:07:251
149950,0migration/06982-21munin-node23:19:530
149950,0migration/032179-21kthreadcore22:39:530
149950,0migration/031307-21aten_r1power_en00:14:460
149950,0migration/027804-21munin-node21:39:530
149950,0migration/027756-21kthreadcore20:39:500
149950,0migration/02774-21kthreadcore20:44:500
149950,0migration/026959-21fschecks_count22:19:490
149950,0migration/025983-21munin-node22:34:530
149950,0migration/025289-21sh00:45:040
149950,0migration/02505-21irqcore00:34:510
149950,0migration/024943-21kthreadcore20:14:520
149950,0migration/023044-21munin-node00:09:480
149950,0migration/022210-21kthreadcore23:49:510
149950,0migration/022210-21kthreadcore23:49:510
149950,0migration/02194-21sh21:25:570
149950,0migration/021840-21kthreadcore20:34:510
149950,0migration/018077-21munin-node23:45:000
149950,0migration/011696-21cpuspeed_turbos22:29:480
149950,0migration/011240-21kthreadcore22:09:520
149950,0migration/011042-21kthreadcore23:04:520
149950,0migration/010727-21taskset19:44:210
149950,0migration/010370-21munin-node00:39:460
149950,0migration/010282-21fschecks_time23:24:480
8305040,0irq/26-0000:00:15627-21latency_hist23:09:352
70909944,0cyclictest0-21swapper/222:45:052
70909944,0cyclictest0-21swapper/220:29:582
70909943,0cyclictest4930-21awk19:39:502
70909943,0cyclictest3524-21snmpd23:45:562
70909943,0cyclictest3524-21snmpd20:56:252
70909943,0cyclictest3524-21snmpd20:04:552
70909943,0cyclictest28616-21awk21:24:502
70909943,0cyclictest27880-21awk23:34:502
70909943,0cyclictest23736-21awk00:09:502
70909943,0cyclictest22732-21awk19:29:492
70909943,0cyclictest19579-21awk20:34:492
70899944,0cyclictest0-21swapper/123:45:301
70899944,0cyclictest0-21swapper/123:24:231
70899944,0cyclictest0-21swapper/122:09:391
70899943,0cyclictest5140-21awk21:29:521
70899943,0cyclictest3571-21lldpd23:40:421
70899943,0cyclictest3571-21lldpd22:29:411
70899943,0cyclictest3571-21lldpd20:27:401
70899943,0cyclictest3571-21lldpd19:26:371
70899943,0cyclictest3571-21lldpd00:16:431
70899943,0cyclictest3250-21irqbalance00:30:211
70899943,0cyclictest27955-21awk23:34:511
70899943,0cyclictest2400-21awk00:34:511
70899940,0cyclictest0-21swapper/123:14:171
70889944,0cyclictest0-21swapper/023:17:160
70889944,0cyclictest0-21swapper/023:03:230
70889944,0cyclictest0-21swapper/020:24:570
70889943,0cyclictest3947-21awk22:24:490
70889943,0cyclictest15985-21awk20:54:500
70889943,0cyclictest14743-21awk22:49:480
339940,0migration/331314-21diskmemload22:01:063
339940,0migration/328936-21diskmemload23:54:383
339940,0migration/326291-21kthreadcore20:14:523
339940,0migration/322240-21aten_r1power_fr20:59:453
329940,0watchdog/38507-21kthreadcore21:09:533
29815040,0irq/29-eth0-tx-3319-21ssh23:55:042
29815040,0irq/29-eth0-tx-30979-21munin-node22:59:582
29815040,0irq/29-eth0-tx-29698-21kthreadcore21:59:522
29815040,0irq/29-eth0-tx-2692-21ssh22:24:372
29815040,0irq/29-eth0-tx-25000-21ssh00:29:462
29815040,0irq/29-eth0-tx-20879-21ssh00:05:342
29815040,0irq/29-eth0-tx-1164-21ssh22:21:042
29815040,0irq/29-eth0-tx-0-21swapper/223:40:252
29815040,0irq/29-eth0-tx-0-21swapper/222:49:412
29815040,0irq/29-eth0-tx-0-21swapper/221:29:372
29815040,0irq/29-eth0-tx-0-21swapper/200:25:242
29815040,0irq/29-eth0-tx-0-21swapper/020:29:500
29815040,0irq/29-eth0-tx-0-21swapper/020:09:200
29815040,0irq/29-eth0-tx-0-21swapper/019:59:450
29815040,0irq/29-eth0-tx-0-21swapper/019:34:120
29805040,0irq/28-eth0-rx-15934-21aten_r1power_cu23:09:463
29805040,0irq/28-eth0-rx-0-21swapper/323:50:083
29805040,0irq/28-eth0-rx-0-21swapper/323:50:083
29805040,0irq/28-eth0-rx-0-21swapper/319:24:453
29805040,0irq/28-eth0-rx-0-21swapper/300:10:413
259940,0migration/29011-21irqcore20:49:502
259940,0migration/2601-21kthreadcore21:44:482
259940,0migration/25635-21irqrtprio21:09:522
259940,0migration/23971-21latency_hist20:24:342
259940,0migration/231743-21kthreadcore20:19:512
259940,0migration/230727-21kthreadcore20:39:512
259940,0migration/228851-21runrttasks22:39:472
259940,0migration/223370-21irqrtprio20:14:512
259940,0migration/219958-21kthreadcore19:24:512
259940,0migration/219943-21kthreadcore19:49:502
259940,0migration/215701-21kthreadcore21:14:532
259940,0migration/215136-21kthreadcore23:24:532
259940,0migration/211133-21aten_r1power_vo19:44:462
259940,0migration/210739-21kthreadcore23:04:522
249940,0watchdog/218554-21munin-node00:44:462
249940,0watchdog/212143-21ssh00:00:302
21001240,0sleep121005-21ssh00:05:551
179940,0migration/19272-21irqrtprio20:49:501
179940,0migration/17438-21kthreadcore19:39:511
179940,0migration/17132-21cpu21:49:471
179940,0migration/15270-21unixbench_multi23:00:011
179940,0migration/131243-21kthreadcore20:19:501
179940,0migration/129270-21kthreadcore19:54:511
179940,0migration/12678-21sendmail_mailtr19:34:551
179940,0migration/125940-21kthreadcore22:34:531
179940,0migration/12384-21kthreadcore20:44:501
179940,0migration/123582-21kthreadcore23:49:521
179940,0migration/123582-21kthreadcore23:49:521
179940,0migration/123505-21fschecks_time00:09:491
179940,0migration/122808-21kthreadcore23:29:511
179940,0migration/122010-21kthreadcore19:49:511
179940,0migration/121107-21kthreadcore20:34:501
179940,0migration/119368-21fschecks_time00:44:471
179940,0migration/117423-21kthreadcore21:54:501
179940,0migration/117009-21kthreadcore20:09:521
179940,0migration/116234-21taskset00:24:411
179940,0migration/113900-21kthreadcore20:29:521
179940,0migration/110921-21kthreadcore22:44:531
179940,0migration/110565-21kthreadcore19:19:501
169940,0watchdog/13892-21ssh23:56:341
169940,0watchdog/132577-21chrt19:59:411
169940,0watchdog/132151-21kthreadcore21:24:531
169940,0watchdog/124752-21netstat21:19:531
169940,0watchdog/117720-21ssh23:29:101
169940,0watchdog/115933-21kthreadcore21:14:531
169940,0watchdog/113191-21kthreadcore00:19:541
149940,0migration/06714-21kthreadcore21:29:540
149940,0migration/030193-21sh22:58:120
149940,0migration/029991-21kthreadcore21:59:520
149940,0migration/02582-21kthreadcore21:44:490
149940,0migration/020187-21kthreadcore00:24:530
149940,0migration/016556-21kthreadcore00:04:520
149940,0migration/014451-21kthreadcore19:44:510
70909932,0cyclictest3524-21snmpd19:58:252
70909930,0cyclictest1326-21perl20:44:472
70899932,0cyclictest8590-21awk20:04:481
70899932,0cyclictest16079-21awk20:54:511
70899930,0cyclictest11660-21perl19:44:471
70899930,0cyclictest0-21swapper/121:00:361
70889932,0cyclictest8858-21awk20:49:490
70889932,0cyclictest8358-21awk19:19:470
70889932,0cyclictest6014-21gltestperf22:44:480
70889932,0cyclictest3524-21snmpd23:40:000
70889932,0cyclictest25382-21munin-node19:54:460
70889932,0cyclictest24456-21sensors23:29:550
70889932,0cyclictest19361-21awk19:49:490
70889932,0cyclictest17013-21irqrtprio21:54:490
70889932,0cyclictest16956-21awk23:09:500
70889932,0cyclictest15813-21awk20:09:500
70889932,0cyclictest15656-21awk19:24:490
70889930,0cyclictest2960-21kworker/0:221:15:580
70889930,0cyclictest29208-21munin-node19:34:460
70889930,0cyclictest0-21swapper/022:16:000
329930,0watchdog/30-21swapper/321:04:493
29815030,0irq/29-eth0-tx-0-21swapper/021:04:450
29805030,0irq/28-eth0-rx-0-21swapper/320:34:443
29805030,0irq/28-eth0-rx-0-21swapper/320:19:453
259930,0migration/23016-21unixbench_singl19:34:592
169930,0watchdog/10-21swapper/121:44:491
169930,0watchdog/10-21swapper/121:09:491
169930,0watchdog/10-21swapper/120:14:491
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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