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2026-05-15 - 10:50
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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 May 15, 2026 00:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
265625352,0sleep10-21swapper/119:20:251
186624534,0sleep00-21swapper/019:18:040
269923727,0sleep30-21swapper/319:20:513
281223329,0sleep20-21swapper/219:22:062
339960,0migration/33804-21sh23:23:333
339960,0migration/329206-21munin-node22:07:553
339960,0migration/32810-21kthreadcore19:42:593
339960,0migration/327764-21taskset20:43:063
339960,0migration/326189-21sh00:15:403
339960,0migration/320758-21sh22:19:023
339960,0migration/317035-21sh22:37:553
339960,0migration/31544-21sh00:18:133
29805060,0irq/28-eth0-rx-9918-21python00:23:063
29805060,0irq/28-eth0-rx-26213-21iostat_ios23:57:593
149960,0migration/07235-21sh21:34:410
149960,0migration/02323-21sh21:52:200
149960,0migration/021849-21sh23:35:390
149960,0migration/021032-21timerandwakeup21:23:090
149960,0migration/014300-21timerwakeupswit23:48:090
149960,0migration/010649-21sh00:24:120
339950,0migration/37567-21timerandwakeup22:48:103
339950,0migration/33346-21kthreadcore21:13:003
339950,0migration/330892-21pmu-power22:43:043
339950,0migration/330791-21munin-node19:38:013
339950,0migration/329519-21cpu00:37:563
339950,0migration/329431-21gltestperf20:02:563
339950,0migration/328314-21irqcore23:03:003
339950,0migration/328314-21irqcore23:03:003
339950,0migration/326589-21kthreadcore00:33:013
339950,0migration/323606-21sh23:54:383
339950,0migration/321758-21munin-node19:57:553
339950,0migration/318884-21idleruntime20:17:593
339950,0migration/316838-21sendmail_mailst20:13:033
339950,0migration/315943-21munin-node22:53:043
339950,0migration/315034-21gltestperf19:52:563
339950,0migration/314827-21kthreadcore19:28:003
339950,0migration/311859-21runrttasks22:13:183
339950,0migration/311693-21kthreadcore20:32:593
339950,0migration/310370-21taskset23:09:013
329950,0watchdog/331221-21ssh21:31:053
329950,0watchdog/325624-21kthreadcore22:23:023
329950,0watchdog/32246-21kthreadcore23:43:023
329950,0watchdog/320785-21cut21:43:013
329950,0watchdog/314767-21df_inode20:37:533
329950,0watchdog/312791-21kthreadcore23:48:023
329950,0watchdog/30-21swapper/300:47:303
29815050,0irq/29-eth0-tx-7443-21ssh22:32:522
29815050,0irq/29-eth0-tx-7324-21munin-node21:17:560
29815050,0irq/29-eth0-tx-24989-21munin-node23:58:032
29815050,0irq/29-eth0-tx-24698-21munin-node22:43:032
29815050,0irq/29-eth0-tx-1868-21perl22:47:572
29815050,0irq/29-eth0-tx-13057-21cut22:53:002
29815050,0irq/29-eth0-tx-0-21swapper/223:08:152
29815050,0irq/29-eth0-tx-0-21swapper/222:59:542
29815050,0irq/29-eth0-tx-0-21swapper/221:48:582
29815050,0irq/29-eth0-tx-0-21swapper/200:50:452
29815050,0irq/29-eth0-tx-0-21swapper/200:37:472
29815050,0irq/29-eth0-tx-0-21swapper/200:31:352
29815050,0irq/29-eth0-tx-0-21swapper/200:18:312
29815050,0irq/29-eth0-tx-0-21swapper/200:09:342
29815050,0irq/29-eth0-tx-0-21swapper/020:53:030
29815050,0irq/29-eth0-tx-0-21swapper/020:37:570
29815050,0irq/29-eth0-tx-0-21swapper/020:33:410
29815050,0irq/29-eth0-tx-0-21swapper/019:58:020
29815050,0irq/29-eth0-tx-0-21swapper/019:42:530
29805050,0irq/28-eth0-rx-5531-21date23:27:433
29805050,0irq/28-eth0-rx-26956-21grep21:47:573
29805050,0irq/28-eth0-rx-1356-21sh00:02:553
29805050,0irq/28-eth0-rx-10948-21kthreadcore22:32:593
29805050,0irq/28-eth0-rx-0-21swapper/323:16:253
29805050,0irq/28-eth0-rx-0-21swapper/322:57:493
29805050,0irq/28-eth0-rx-0-21swapper/322:02:513
29805050,0irq/28-eth0-rx-0-21swapper/321:38:113
29805050,0irq/28-eth0-rx-0-21swapper/321:33:373
29805050,0irq/28-eth0-rx-0-21swapper/321:17:533
29805050,0irq/28-eth0-rx-0-21swapper/300:27:443
29805050,0irq/28-eth0-rx-0-21swapper/300:11:423
29349955,0cyclictest0-21swapper/121:52:531
29349954,0cyclictest3524-21snmpd20:31:391
29339955,0cyclictest30370-21sh22:26:350
29339955,0cyclictest0-21swapper/022:18:130
29339955,0cyclictest0-21swapper/021:27:460
29339954,0cyclictest0-21swapper/020:43:000
29339950,0cyclictest0-21swapper/022:44:050
29339950,0cyclictest0-21swapper/022:37:370
29339950,0cyclictest0-21swapper/022:09:520
259950,0migration/24559-21sh23:25:392
259950,0migration/24172-21hddtemp_smartct19:22:562
259950,0migration/24120-21fschecks_time20:07:552
259950,0migration/230421-21taskset22:26:432
259950,0migration/224609-21kthreadcore20:43:002
259950,0migration/220741-21kthreadcore23:53:012
259950,0migration/217361-21kthreadcore22:18:002
259950,0migration/216312-21kthreadcore23:33:002
259950,0migration/215571-21taskset23:51:162
259950,0migration/213624-21switchtime21:18:062
259950,0migration/211486-21sh00:26:332
249950,0watchdog/229222-21sensors23:38:062
249950,0watchdog/20-21swapper/222:38:142
179950,0migration/15140-21kthreadcore00:03:011
179950,0migration/13925-21ksmtuned23:23:521
179950,0migration/118648-21cpuspeed_turbos22:57:571
149950,0migration/07415-21kthreadcore21:53:000
149950,0migration/06810-21kthreadcore00:03:020
149950,0migration/06677-21taskset21:13:250
149950,0migration/06267-21if_eth1.322:12:580
149950,0migration/04973-21kthreadcore23:08:000
149950,0migration/03986-21ksmtuned00:38:530
149950,0migration/030405-21kthreadcore23:58:010
149950,0migration/029271-21kthreadcore00:18:030
149950,0migration/027419-21munin-node23:02:560
149950,0migration/027419-21munin-node23:02:560
149950,0migration/024388-21taskset21:43:160
149950,0migration/022354-21kthreadcore00:13:000
149950,0migration/019900-21kthreadcore23:53:010
149950,0migration/019228-21fschecks_time22:57:590
149950,0migration/017314-21taskset19:31:500
149950,0migration/017294-21kthreadcore19:53:000
149950,0migration/014583-21kthreadcore22:53:010
149950,0migration/010696-21aten_r1power_en20:12:530
8305040,0irq/26-0000:00:6666-21awk19:47:422
339940,0migration/34687-21irqrtprio19:22:583
339940,0migration/332757-21fschecks_count20:27:553
339940,0migration/313820-21runrttasks19:51:553
339940,0migration/310208-21taskset20:53:193
329940,0watchdog/33774-21ksmtuned19:35:493
329940,0watchdog/323965-21munin-node21:03:013
329940,0watchdog/314641-21df_abs00:47:583
329940,0watchdog/30-21swapper/321:52:573
329940,0watchdog/30-21swapper/320:48:013
329940,0watchdog/30-21swapper/320:22:533
329940,0watchdog/30-21swapper/320:08:013
29815040,0irq/29-eth0-tx-23279-21ssh21:27:432
29815040,0irq/29-eth0-tx-0-21swapper/223:18:152
29815040,0irq/29-eth0-tx-0-21swapper/223:03:052
29815040,0irq/29-eth0-tx-0-21swapper/223:03:052
29815040,0irq/29-eth0-tx-0-21swapper/222:27:552
29815040,0irq/29-eth0-tx-0-21swapper/222:12:532
29815040,0irq/29-eth0-tx-0-21swapper/222:07:522
29815040,0irq/29-eth0-tx-0-21swapper/222:02:452
29815040,0irq/29-eth0-tx-0-21swapper/221:57:462
29815040,0irq/29-eth0-tx-0-21swapper/221:52:552
29815040,0irq/29-eth0-tx-0-21swapper/221:37:432
29815040,0irq/29-eth0-tx-0-21swapper/200:42:572
29815040,0irq/29-eth0-tx-0-21swapper/200:02:452
29815040,0irq/29-eth0-tx-0-21swapper/021:03:000
29815040,0irq/29-eth0-tx-0-21swapper/020:08:070
29815040,0irq/29-eth0-tx-0-21swapper/019:23:070
29805040,0irq/28-eth0-rx-0-21swapper/323:37:553
29805040,0irq/28-eth0-rx-0-21swapper/323:34:283
29805040,0irq/28-eth0-rx-0-21swapper/323:17:563
29805040,0irq/28-eth0-rx-0-21swapper/322:28:253
29805040,0irq/28-eth0-rx-0-21swapper/321:57:483
29805040,0irq/28-eth0-rx-0-21swapper/321:23:313
29359944,0cyclictest305350irq/27-eth121:12:462
29359944,0cyclictest305350irq/27-eth120:54:072
29359944,0cyclictest305350irq/27-eth120:03:432
29359944,0cyclictest305350irq/27-eth119:53:372
29359943,0cyclictest904-21awk20:27:572
29359943,0cyclictest8088-21awk19:47:572
29359943,0cyclictest6693-21awk23:27:582
29359943,0cyclictest3571-21lldpd19:40:112
29359943,0cyclictest3524-21snmpd20:48:092
29359943,0cyclictest3524-21snmpd20:12:542
29359943,0cyclictest19642-21awk00:12:572
29359943,0cyclictest18761-21awk21:42:592
29359943,0cyclictest15397-21awk20:37:562
29359940,0cyclictest0-21swapper/223:43:012
29349944,0cyclictest0-21swapper/123:07:561
29349944,0cyclictest0-21swapper/122:20:291
29349944,0cyclictest0-21swapper/122:14:481
29349944,0cyclictest0-21swapper/121:48:001
29349943,0cyclictest9949-21awk21:37:581
29349943,0cyclictest8165-21awk20:32:561
29349943,0cyclictest4528-21awk20:07:581
29349943,0cyclictest3571-21lldpd20:57:411
29349943,0cyclictest3571-21lldpd19:59:401
29349943,0cyclictest3571-21lldpd19:49:411
29349943,0cyclictest3571-21lldpd00:48:431
29349943,0cyclictest3571-21lldpd00:22:431
29349943,0cyclictest3571-21lldpd00:11:131
29349943,0cyclictest3524-21snmpd22:00:251
29349943,0cyclictest32586-21awk23:42:591
29349943,0cyclictest3250-21irqbalance23:20:491
29349943,0cyclictest3250-21irqbalance20:48:191
29349943,0cyclictest3250-21irqbalance19:32:481
29349943,0cyclictest3250-21irqbalance19:27:481
29349943,0cyclictest29826-21awk22:07:571
29349943,0cyclictest29576-21awk20:02:571
29349943,0cyclictest28312-21awk00:18:011
29349943,0cyclictest26265-21awk21:07:571
29349943,0cyclictest24424-21awk21:28:001
29349943,0cyclictest23469-21awk22:22:591
29349943,0cyclictest2174-21awk22:48:001
29349943,0cyclictest18785-21awk21:42:591
29349943,0cyclictest1139-21awk21:12:581
29339944,0cyclictest0-21swapper/023:31:130
29339944,0cyclictest0-21swapper/023:20:010
29339944,0cyclictest0-21swapper/023:16:330
29339944,0cyclictest0-21swapper/021:38:580
29339943,0cyclictest3571-21lldpd00:11:430
29339943,0cyclictest32142-21awk22:27:570
29339943,0cyclictest25980-21awk19:37:570
29339943,0cyclictest24832-21sadc20:22:420
29339943,0cyclictest2042-21awk22:47:590
259940,0migration/229814-21kthreadcore20:22:592
259940,0migration/225164-21latency_hist21:07:422
259940,0migration/224716-21runrttasks21:04:512
259940,0migration/222681-21irqcore19:57:592
259940,0migration/215226-21fschecks_count21:22:572
259940,0migration/213109-21kthreadcore19:27:592
259940,0migration/211868-21latency_hist23:12:432
249940,0watchdog/25221-21kthreadcore21:33:012
249940,0watchdog/220775-21sh00:32:542
249940,0watchdog/220393-21grep20:18:012
249940,0watchdog/217011-21python20:58:052
179940,0migration/16572-21users21:33:101
179940,0migration/15791-21aten_r1power_vo00:42:551
179940,0migration/13391-21munin-node19:22:541
179940,0migration/128870-21kthreadcore23:58:011
179940,0migration/125826-21kthreadcore23:38:011
179940,0migration/122279-21fschecks_time20:42:561
179940,0migration/121203-21sh23:33:521
179940,0migration/120969-21kthreadcore00:12:591
179940,0migration/120646-21kthreadcore21:02:591
179940,0migration/117069-21kthreadcore20:37:581
179940,0migration/115854-21irqcore21:23:001
179940,0migration/115834-21munin-node22:53:031
179940,0migration/112886-21kthreadcore20:12:591
179940,0migration/112572-21kthreadcore20:57:591
179940,0migration/111656-21kthreadcore21:17:591
179940,0migration/110306-21kthreadcore23:28:011
169940,0watchdog/13312-21sensors00:38:061
169940,0watchdog/131182-21ssh23:03:021
169940,0watchdog/131182-21ssh23:03:021
169940,0watchdog/125076-21cut22:03:011
169940,0watchdog/123392-21ssh23:54:021
169940,0watchdog/117046-21kthreadcore00:28:021
169940,0watchdog/115931-21ssh23:52:181
169940,0watchdog/10-21swapper/123:12:581
169940,0watchdog/10-21swapper/119:37:571
169940,0watchdog/10-21swapper/100:35:221
149940,0migration/027669-21kthreadcore21:07:590
149940,0migration/027033-21kthreadcore20:22:580
149940,0migration/023890-21switchtime19:33:060
149940,0migration/016799-21kthreadcore00:28:020
149940,0migration/01504-21kthreadcore20:03:000
149940,0migration/011752-21gltestperf20:57:560
329930,0watchdog/30-21swapper/320:57:533
29805030,0irq/28-eth0-rx-0-21swapper/321:07:533
29359932,0cyclictest17537-21cat19:32:422
29349933,0cyclictest0-21swapper/122:34:301
29349932,0cyclictest3571-21lldpd19:45:111
29349932,0cyclictest31508-21fschecks_count22:27:551
29349932,0cyclictest25781-21awk22:42:581
29339933,0cyclictest0-21swapper/023:44:180
29339933,0cyclictest0-21swapper/000:35:420
29339932,0cyclictest7747-21perl19:47:550
29339932,0cyclictest6836-21awk00:43:000
29339932,0cyclictest3571-21lldpd20:48:410
29339932,0cyclictest3524-21snmpd23:23:010
29339932,0cyclictest3524-21snmpd00:47:570
29339932,0cyclictest29220-21sensors23:38:060
29339932,0cyclictest28099-21ssh22:06:420
29339932,0cyclictest14346-21diskmemload22:40:270
29339930,0cyclictest32245-21munin-node20:27:550
249930,0watchdog/20-21swapper/220:33:012
169930,0watchdog/10-21swapper/122:37:461
169930,0watchdog/10-21swapper/120:22:531
169930,0watchdog/10-21swapper/120:17:571
169930,0watchdog/10-21swapper/119:52:571
29339920,0cyclictest0-21swapper/021:57:430
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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