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2026-09-02 - 17:07
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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 792 highest latencies:
System rack1slot2.osadl.org (updated Wed Sep 02, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1962823928,0sleep30-21swapper/307:28:193
1954123627,0sleep20-21swapper/207:27:182
1983823524,0sleep00-21swapper/007:30:480
1954022723,0sleep10-21swapper/107:27:171
19989991010,0cyclictest3524-21snmpd08:58:180
4170,0ktimersoftd/00-21swapper/012:36:150
329970,0watchdog/332128-21ssh11:05:283
35160,0ktimersoftd/30-21swapper/312:36:153
339960,0migration/37864-21munin-node10:51:593
339960,0migration/35969-21sh12:22:163
339960,0migration/33895-21latency_hist11:46:453
339960,0migration/319136-21munin-node12:52:003
339960,0migration/315271-21munin-node11:12:073
29815060,0irq/29-eth0-tx-2671-21munin-node09:12:100
29805060,0irq/28-eth0-rx-20327-21irqstats10:02:023
29805060,0irq/28-eth0-rx-16290-21sh09:41:443
27160,0ktimersoftd/20-21swapper/212:36:152
199919966,0cyclictest83050irq/26-0000:00:10:26:502
199919960,0cyclictest0-21swapper/212:06:042
19160,0ktimersoftd/10-21swapper/112:36:151
149960,0migration/05399-21sh12:05:580
149960,0migration/015167-21sh12:28:530
149960,0migration/010523-21sh11:31:310
4150,0ktimersoftd/00-21swapper/012:37:270
35150,0ktimersoftd/30-21swapper/310:22:243
339950,0migration/38775-21pmu-power09:12:053
339950,0migration/38650-21fschecks_time12:26:593
339950,0migration/38103-21taskset12:42:553
339950,0migration/37578-21kthreadcore12:07:013
339950,0migration/36169-21taskset09:33:083
339950,0migration/32975-21kthreadcore10:47:043
339950,0migration/329583-21kthreadcore09:47:043
339950,0migration/327093-21kthreadcore09:27:033
339950,0migration/324944-21fschecks_time08:41:593
339950,0migration/324538-21kthreadcore10:42:033
339950,0migration/32246-21munin-node07:41:563
339950,0migration/321483-21munin-node11:56:573
339950,0migration/31924-21taskset07:41:013
339950,0migration/317562-21fschecks_time07:51:593
339950,0migration/315562-21munin-node12:12:013
339950,0migration/314584-21fschecks_time10:37:003
339950,0migration/314123-21munin-node08:11:593
329950,0watchdog/331559-21ps12:37:133
329950,0watchdog/322860-21kthreadcore09:22:043
329950,0watchdog/321717-21wc10:57:043
329950,0watchdog/315989-21kthreadcore11:32:043
329950,0watchdog/31585-21kthreadcore08:47:043
329950,0watchdog/314282-21fschecks_time08:57:003
329950,0watchdog/30-21swapper/309:02:043
29815050,0irq/29-eth0-tx-2859-21iostat09:52:032
29815050,0irq/29-eth0-tx-26735-21munin-node12:57:112
29815050,0irq/29-eth0-tx-2243-21munin-node07:41:590
29815050,0irq/29-eth0-tx-18425-21cut10:57:032
29815050,0irq/29-eth0-tx-16991-21munin-node08:37:100
29815050,0irq/29-eth0-tx-12922-21tune2fs10:17:012
29815050,0irq/29-eth0-tx-0-21swapper/211:07:032
29815050,0irq/29-eth0-tx-0-21swapper/210:50:042
29815050,0irq/29-eth0-tx-0-21swapper/210:24:432
29815050,0irq/29-eth0-tx-0-21swapper/209:36:582
29815050,0irq/29-eth0-tx-0-21swapper/009:08:210
29815050,0irq/29-eth0-tx-0-21swapper/008:52:100
29815050,0irq/29-eth0-tx-0-21swapper/008:52:100
29805050,0irq/28-eth0-rx-363-21yum11:22:123
29805050,0irq/28-eth0-rx-30841-21kthreadcore09:07:023
29805050,0irq/28-eth0-rx-1763-21kthreadcore10:27:033
29805050,0irq/28-eth0-rx-17076-21ssh09:57:403
29805050,0irq/28-eth0-rx-1173-21fschecks_time11:06:593
29805050,0irq/28-eth0-rx-0-21swapper/312:57:123
29805050,0irq/28-eth0-rx-0-21swapper/312:50:393
29805050,0irq/28-eth0-rx-0-21swapper/312:05:553
29805050,0irq/28-eth0-rx-0-21swapper/311:39:063
29805050,0irq/28-eth0-rx-0-21swapper/311:31:183
29805050,0irq/28-eth0-rx-0-21swapper/311:17:053
29805050,0irq/28-eth0-rx-0-21swapper/309:53:273
29805050,0irq/28-eth0-rx-0-21swapper/309:42:113
29805050,0irq/28-eth0-rx-0-21swapper/308:51:563
29805050,0irq/28-eth0-rx-0-21swapper/308:51:563
27150,0ktimersoftd/20-21swapper/211:46:212
259950,0migration/27161-21sh09:35:462
259950,0migration/232132-21needreboot11:22:042
259950,0migration/229182-21kthreadcore10:07:032
259950,0migration/220020-21taskset08:14:262
259950,0migration/219438-21aten_r1power_cu11:36:582
259950,0migration/217125-21kthreadcore10:37:042
259950,0migration/21518-21kthreadcore12:22:032
259950,0migration/214609-21sh10:54:112
259950,0migration/214324-21kthreadcore11:52:022
259950,0migration/213243-21kthreadcore12:27:042
259950,0migration/212375-21kthreadcore12:47:032
249950,0watchdog/226681-21munin-node08:17:082
249950,0watchdog/224359-21aten2.4-expect11:01:562
249950,0watchdog/218494-21tune2fs11:17:002
249950,0watchdog/214416-21tr09:57:042
199919955,0cyclictest0-21swapper/211:34:222
199919955,0cyclictest0-21swapper/207:51:462
199919950,0cyclictest0-21swapper/210:41:522
199919950,0cyclictest0-21swapper/210:13:222
199909955,0cyclictest0-21swapper/112:58:041
199909955,0cyclictest0-21swapper/110:46:541
199909950,0cyclictest0-21swapper/112:56:011
199909950,0cyclictest0-21swapper/112:24:581
199909950,0cyclictest0-21swapper/109:35:291
199909950,0cyclictest0-21swapper/108:01:591
199909950,0cyclictest0-21swapper/107:34:061
199899950,0cyclictest0-21swapper/010:47:150
199899950,0cyclictest0-21swapper/009:27:100
179950,0migration/16424-21kthreadcore11:47:041
179950,0migration/129480-21idleruntime-cro12:01:451
169950,0watchdog/121657-21kthreadcore07:52:041
149950,0migration/05986-21kthreadcore11:07:030
149950,0migration/05301-21latency_hist10:31:450
149950,0migration/04603-21kthreadcore12:42:040
149950,0migration/04020-21irqrtprio08:27:020
149950,0migration/03887-21kthreadcore09:52:040
149950,0migration/032025-21fschecks_time08:01:590
149950,0migration/030979-21kthreadcore09:47:040
149950,0migration/030682-21kthreadcore08:22:020
149950,0migration/02945-21sh10:10:590
149950,0migration/02818-21kthreadcore08:47:050
149950,0migration/027731-21kthreadcore08:42:030
149950,0migration/027659-21cpuspeed_turbos07:36:560
149950,0migration/027155-21latency_hist10:06:450
149950,0migration/027031-21kthreadcore12:17:050
149950,0migration/026958-21fschecks_time11:21:580
149950,0migration/026650-21sh11:38:480
149950,0migration/024850-21kthreadcore10:42:030
149950,0migration/024164-21kthreadcore08:17:030
149950,0migration/024062-21aten2.4-expect07:56:560
149950,0migration/021059-21latency_hist11:56:450
149950,0migration/020779-21kthreadcore11:17:050
149950,0migration/018891-21runrttasks11:36:050
149950,0migration/016581-21switchtime09:57:110
149950,0migration/015814-21irqcore12:12:020
149950,0migration/014023-21kthreadcore10:17:040
149950,0migration/012407-21kthreadcore10:52:040
149950,0migration/011258-21ksmtuned10:15:110
4140,0ktimersoftd/00-21swapper/009:45:350
339940,0migration/37440-21irqcore08:07:033
339940,0migration/328200-21kthreadcore07:57:033
339940,0migration/327269-21sh10:06:503
339940,0migration/324870-21kthreadcore07:32:033
339940,0migration/312581-21runrttasks10:33:373
329940,0watchdog/30-21swapper/312:18:213
329940,0watchdog/30-21swapper/311:47:053
329940,0watchdog/30-21swapper/310:17:003
329940,0watchdog/30-21swapper/308:17:043
329940,0watchdog/30-21swapper/308:02:043
29815040,0irq/29-eth0-tx-0-21swapper/212:12:252
29815040,0irq/29-eth0-tx-0-21swapper/211:46:562
29815040,0irq/29-eth0-tx-0-21swapper/211:26:522
29815040,0irq/29-eth0-tx-0-21swapper/211:11:542
29815040,0irq/29-eth0-tx-0-21swapper/210:02:032
29815040,0irq/29-eth0-tx-0-21swapper/009:32:030
29815040,0irq/29-eth0-tx-0-21swapper/008:11:410
29815040,0irq/29-eth0-tx-0-21swapper/007:52:010
29815040,0irq/29-eth0-tx-0-21swapper/007:32:060
29805040,0irq/28-eth0-rx-16516-40yum-updatesd-he08:34:053
29805040,0irq/28-eth0-rx-0-21swapper/311:53:083
29805040,0irq/28-eth0-rx-0-21swapper/310:11:573
29805040,0irq/28-eth0-rx-0-21swapper/309:17:013
29805040,0irq/28-eth0-rx-0-21swapper/308:22:023
259940,0migration/29683-21kthreadcore10:32:032
259940,0migration/2873-21kthreadcore08:02:032
259940,0migration/25308-21kthreadcore12:42:042
259940,0migration/232013-21fschecks_count08:47:002
259940,0migration/228538-21fschecks_time08:21:582
259940,0migration/227574-21kthreadcore09:47:032
259940,0migration/224906-21latency_hist12:36:462
259940,0migration/223678-21kthreadcore12:52:052
259940,0migration/221710-21idleruntime09:02:002
259940,0migration/219418-21kthreadcore08:37:022
259940,0migration/213151-21taskset08:55:132
259940,0migration/213151-21taskset08:55:132
249940,0watchdog/216228-21kthreadcore08:57:042
249940,0watchdog/20-21swapper/211:56:572
249940,0watchdog/20-21swapper/208:07:042
199919943,0cyclictest7082-21awk12:06:592
199919943,0cyclictest3524-21snmpd12:17:012
199919943,0cyclictest3524-21snmpd09:27:002
199919943,0cyclictest3524-21snmpd08:42:002
199919943,0cyclictest3524-21snmpd08:33:002
199919943,0cyclictest3524-21snmpd08:30:002
199919943,0cyclictest3524-21snmpd07:58:592
199919943,0cyclictest3524-21snmpd07:47:292
199919943,0cyclictest3524-21snmpd07:43:292
199919943,0cyclictest3524-21snmpd07:35:142
199919943,0cyclictest28955-21awk09:07:002
199919943,0cyclictest18265-21awk09:22:012
199919943,0cyclictest17649-21awk09:42:012
199919943,0cyclictest10987-21awk09:17:012
199909944,0cyclictest29112-21cut09:07:011
199909944,0cyclictest0-21swapper/111:53:161
199909943,0cyclictest7058-21awk12:06:591
199909943,0cyclictest3571-21lldpd12:13:591
199909943,0cyclictest3571-21lldpd12:02:001
199909943,0cyclictest3571-21lldpd11:45:001
199909943,0cyclictest3571-21lldpd10:43:291
199909943,0cyclictest3571-21lldpd10:26:591
199909943,0cyclictest3571-21lldpd09:29:581
199909943,0cyclictest3524-21snmpd11:36:461
199909943,0cyclictest3524-21snmpd10:18:451
199909943,0cyclictest3524-21snmpd10:16:301
199909943,0cyclictest3524-21snmpd09:04:451
199909943,0cyclictest3524-21snmpd08:19:291
199909943,0cyclictest3524-21snmpd08:01:291
199909943,0cyclictest3524-21snmpd07:50:291
199909943,0cyclictest28352-21awk10:07:011
199909943,0cyclictest19931-21awk10:02:011
199909943,0cyclictest18762-21awk11:17:031
199909943,0cyclictest14598-21awk08:57:021
199899944,0cyclictest0-21swapper/013:01:250
199899944,0cyclictest0-21swapper/010:37:570
199899944,0cyclictest0-21swapper/009:38:030
199899943,0cyclictest3524-21snmpd10:30:150
199899943,0cyclictest32672-21awk12:22:010
199899943,0cyclictest25442-21awk11:02:010
199899943,0cyclictest11017-21awk09:17:020
199899943,0cyclictest10864-21awk12:47:010
199899943,0cyclictest10101-21awk11:12:010
179940,0migration/17978-21kthreadcore10:32:021
179940,0migration/131755-21taskset11:04:221
179940,0migration/12777-21fschecks_count11:26:571
179940,0migration/126804-21fschecks_time11:21:581
179940,0migration/123928-21sh09:43:541
179940,0migration/112486-21kthreadcore10:52:041
169940,0watchdog/17949-21kthreadcore07:42:041
169940,0watchdog/17459-21ssh11:07:561
169940,0watchdog/1671-21ssh12:41:411
169940,0watchdog/121716-21grep10:57:041
169940,0watchdog/119068-21sed08:12:041
169940,0watchdog/117643-21ssh12:50:531
169940,0watchdog/117192-21ssh11:32:081
169940,0watchdog/117176-21ssh09:57:561
169940,0watchdog/11583-21kthreadcore08:47:041
169940,0watchdog/115623-21ssh09:40:041
169940,0watchdog/113437-21ps09:17:041
169940,0watchdog/11088-21missed_timers08:22:041
169940,0watchdog/10-21swapper/110:37:041
169940,0watchdog/10-21swapper/110:22:001
169940,0watchdog/10-21swapper/109:47:041
169940,0watchdog/10-21swapper/109:22:041
169940,0watchdog/10-21swapper/108:07:041
149940,0migration/021410-21fschecks_time10:21:580
149940,0migration/020309-21kthreadcore09:22:030
8305030,0irq/26-0000:00:0-21swapper/307:47:403
329930,0watchdog/30-21swapper/308:36:563
329930,0watchdog/30-21swapper/308:27:123
29815030,0irq/29-eth0-tx-0-21swapper/007:46:560
199919933,0cyclictest28570-21awk07:37:002
199919932,0cyclictest3524-21snmpd09:16:302
199909933,0cyclictest3571-21lldpd12:26:591
199909933,0cyclictest3571-21lldpd07:41:271
199909932,0cyclictest7805-21ntp_offset09:52:071
199909932,0cyclictest6443-21grep08:27:031
199909932,0cyclictest3571-21lldpd08:35:561
199909931,0cyclictest25765-21kthreadcore08:42:031
199909930,0cyclictest9855-21perl11:11:591
199909930,0cyclictest9152-21grep08:52:021
199909930,0cyclictest9152-21grep08:52:021
199899933,0cyclictest0-21swapper/011:56:560
199899932,0cyclictest9275-21kthreadcore11:47:040
199899932,0cyclictest22019-21tr12:52:040
199899932,0cyclictest16929-21awk10:57:010
199899932,0cyclictest13227-21munin-node08:11:580
199899930,0cyclictest21534-21perl09:01:580
199899930,0cyclictest0-21swapper/008:32:040
179930,0migration/11947-21gltestperf12:41:591
169930,0watchdog/10-21swapper/112:17:011
169930,0watchdog/10-21swapper/109:15:321
199909920,0cyclictest0-21swapper/108:36:461
199899921,0cyclictest6314-21runrttasks11:41:470
199899920,0cyclictest5874-21latency_hist12:06:460
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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