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2026-04-22 - 16:31
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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 22, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
566523727,0sleep30-21swapper/307:19:063
553423425,0sleep10-21swapper/107:17:401
579523324,0sleep20-21swapper/207:20:412
574323329,0sleep00-21swapper/007:19:590
58859999,0cyclictest23212-21sensors07:51:110
58859965,0cyclictest22128-21ps08:16:070
339960,0migration/327447-21sh10:57:003
339960,0migration/323453-21sh12:49:023
339960,0migration/313638-21sh09:55:093
29805060,0irq/28-eth0-rx-3710-21perl12:01:053
29805060,0irq/28-eth0-rx-31100-21kthreadcore11:56:083
29805060,0irq/28-eth0-rx-18478-21aten2.4-expect10:36:033
29805060,0irq/28-eth0-rx-13712-21grep12:06:093
149960,0migration/09617-21sh09:31:590
149960,0migration/023731-21sh10:18:200
149960,0migration/014667-21kthreadcore10:51:090
58879954,0cyclictest3524-21snmpd10:45:022
58869955,0cyclictest0-21swapper/112:04:211
58869955,0cyclictest0-21swapper/111:01:171
58869955,0cyclictest0-21swapper/110:26:081
58869955,0cyclictest0-21swapper/109:23:421
58869954,0cyclictest8772-21awk10:11:071
58869950,0cyclictest17161-21diskmemload10:25:011
339950,0migration/39180-21kthreadcore08:51:093
339950,0migration/38768-21munin-node09:11:093
339950,0migration/37405-21kthreadcore12:21:093
339950,0migration/36972-21fschecks_time08:06:043
339950,0migration/36462-21df_abs07:21:033
339950,0migration/36035-21kthreadcore10:46:083
339950,0migration/35543-21kthreadcore07:41:083
339950,0migration/34885-21munin-node08:01:083
339950,0migration/332330-21gltestperf10:06:053
339950,0migration/331402-21fschecks_count12:36:063
339950,0migration/331343-21taskset11:36:383
339950,0migration/330438-21irqcore09:46:083
339950,0migration/329983-21kthreadcore10:41:093
339950,0migration/329747-21fschecks_time11:01:043
339950,0migration/327704-21munin-node07:36:023
339950,0migration/324660-21taskset09:23:013
339950,0migration/324511-21kthreadcore12:31:083
339950,0migration/323459-21kthreadcore12:11:093
339950,0migration/321467-21kthreadcore07:51:073
339950,0migration/320738-21aten_r1power_cu08:16:013
339950,0migration/320071-21timerwakeupswit08:56:163
339950,0migration/319917-21kthreadcore08:36:093
339950,0migration/319045-21munin-node11:51:073
339950,0migration/31366-21fschecks_time11:41:053
339950,0migration/313606-21kthreadcore09:16:083
329950,0watchdog/331547-21kthreadcore09:26:103
329950,0watchdog/328109-21cut08:41:103
329950,0watchdog/317485-21sh11:50:103
329950,0watchdog/316951-21munin-node11:31:063
329950,0watchdog/311753-21kthreadcore11:26:103
329950,0watchdog/30-21swapper/312:44:153
329950,0watchdog/30-21swapper/309:36:463
29815050,0irq/29-eth0-tx-8767-21grep09:51:082
29815050,0irq/29-eth0-tx-0-21swapper/212:07:192
29815050,0irq/29-eth0-tx-0-21swapper/007:26:050
29805050,0irq/28-eth0-rx-8543-21fschecks_time10:11:053
29805050,0irq/28-eth0-rx-6314-21runrttasks10:15:563
29805050,0irq/28-eth0-rx-28791-21ssh09:45:293
29805050,0irq/28-eth0-rx-26842-21grep10:21:083
29805050,0irq/28-eth0-rx-23159-21fschecks_time11:16:043
29805050,0irq/28-eth0-rx-21232-21ssh11:13:013
29805050,0irq/28-eth0-rx-20024-21latency09:56:083
29805050,0irq/28-eth0-rx-0-21swapper/312:18:033
29805050,0irq/28-eth0-rx-0-21swapper/311:25:053
29805050,0irq/28-eth0-rx-0-21swapper/311:08:253
29805050,0irq/28-eth0-rx-0-21swapper/310:52:063
29805050,0irq/28-eth0-rx-0-21swapper/310:34:203
29805050,0irq/28-eth0-rx-0-21swapper/310:04:373
29805050,0irq/28-eth0-rx-0-21swapper/308:35:263
179950,0migration/19440-21kthreadcore08:06:081
179950,0migration/14136-21taskset09:47:541
179950,0migration/131155-21sh08:00:511
179950,0migration/131155-21sh08:00:511
179950,0migration/125703-21kthreadcore09:01:081
179950,0migration/124350-21latency_hist11:35:511
179950,0migration/123897-21kthreadcore10:56:081
179950,0migration/123394-21if_eth112:31:061
179950,0migration/116813-21idleruntime12:46:041
179950,0migration/115525-21kthreadcore11:11:081
179950,0migration/113590-21cpuspeed_turbos07:26:021
169950,0watchdog/110219-21ssh10:47:021
149950,0migration/09965-21kthreadcore11:06:090
149950,0migration/09636-21taskset08:28:570
149950,0migration/07860-21fschecks_count11:26:050
149950,0migration/06847-21kthreadcore09:11:080
149950,0migration/0568-21kthreadcore08:01:060
149950,0migration/0516-21latency_hist11:40:510
149950,0migration/04683-21kthreadcore12:01:080
149950,0migration/03928-21irqcore07:41:070
149950,0migration/0328-21sh09:26:180
149950,0migration/032732-21sh10:24:330
149950,0migration/03134-21kthreadcore11:21:080
149950,0migration/02892-21kthreadcore10:06:100
149950,0migration/027095-21kthreadcore08:41:090
149950,0migration/026776-21switchtime07:31:150
149950,0migration/024979-21munin-node11:36:040
149950,0migration/024921-21ksmtuned09:23:480
149950,0migration/023399-21munin-node12:31:060
149950,0migration/021873-21kthreadcore12:11:090
149950,0migration/018615-21irqcore08:36:080
149950,0migration/01805-21fschecks_time10:26:040
149950,0migration/017012-21kthreadcore12:26:080
149950,0migration/013350-21taskset12:25:460
149950,0migration/011647-21kthreadcore10:31:090
149950,0migration/010001-21sh10:46:260
8305040,0irq/26-0000:00:573-21sed11:40:512
58879943,0cyclictest9772-21grep10:46:162
58879943,0cyclictest3775-21awk09:31:062
58879943,0cyclictest3571-21lldpd12:11:052
58879943,0cyclictest3571-21lldpd11:08:052
58879943,0cyclictest3571-21lldpd09:04:312
58879943,0cyclictest3524-21snmpd08:32:012
58879943,0cyclictest3524-21snmpd08:12:012
58879943,0cyclictest3524-21snmpd08:09:012
58879943,0cyclictest3524-21snmpd08:00:012
58879943,0cyclictest3524-21snmpd08:00:012
58879943,0cyclictest3524-21snmpd07:52:012
58879943,0cyclictest3524-21snmpd07:41:002
58879943,0cyclictest3524-21snmpd07:39:002
58879943,0cyclictest32540-21awk08:01:052
58879943,0cyclictest3250-21irqbalance09:21:072
58879943,0cyclictest29040-21awk08:21:052
58879943,0cyclictest27732-21awk11:56:052
58879943,0cyclictest21694-21awk07:31:072
58879943,0cyclictest16843-21awk12:46:052
58879943,0cyclictest10947-21awk07:46:052
58879941,0cyclictest3250-21irqbalance12:41:082
58879941,0cyclictest0-21swapper/209:41:032
58879940,0cyclictest0-21swapper/210:26:032
58869944,0cyclictest0-21swapper/110:03:351
58869944,0cyclictest0-21swapper/109:45:081
58869943,0cyclictest3981-21awk08:26:081
58869943,0cyclictest3571-21lldpd12:22:351
58869943,0cyclictest3571-21lldpd11:45:341
58869943,0cyclictest3571-21lldpd09:56:041
58869943,0cyclictest3524-21snmpd11:23:481
58869943,0cyclictest3524-21snmpd10:42:321
58869943,0cyclictest32738-21awk08:46:061
58869943,0cyclictest28868-21awk07:36:071
58869943,0cyclictest25678-21awk11:36:061
58869943,0cyclictest21974-21sadc12:30:521
58869943,0cyclictest18097-21awk07:51:051
58869943,0cyclictest11169-21awk08:31:071
58869940,0cyclictest0-21swapper/107:21:311
58859944,0cyclictest0-21swapper/012:20:170
58859944,0cyclictest0-21swapper/011:31:060
58859944,0cyclictest0-21swapper/011:16:160
58859944,0cyclictest0-21swapper/010:15:350
58859943,0cyclictest7426-21awk08:06:060
58859943,0cyclictest3571-21lldpd12:47:360
58859943,0cyclictest3571-21lldpd09:51:040
58859943,0cyclictest3524-21snmpd10:38:470
58859943,0cyclictest28820-21awk07:36:070
58859943,0cyclictest22040-21awk09:01:060
58859943,0cyclictest21609-21awk10:56:060
58859943,0cyclictest15022-21awk11:11:070
58859943,0cyclictest14747-21awk08:56:060
58859943,0cyclictest11243-21awk09:16:060
58859943,0cyclictest11106-21awk08:31:060
58859940,0cyclictest0-21swapper/012:43:280
58859940,0cyclictest0-21swapper/009:48:370
339940,0migration/332474-21fschecks_time08:46:043
339940,0migration/326932-21unixbench-2d07:31:163
339940,0migration/319964-21rt-features12:26:123
329940,0watchdog/30-21swapper/308:26:103
29815040,0irq/29-eth0-tx-5647-21fschecks_count12:21:042
29815040,0irq/29-eth0-tx-3880-21ssh12:18:252
29815040,0irq/29-eth0-tx-30763-21ssh10:04:562
29815040,0irq/29-eth0-tx-29346-21aten_r1power_vo09:46:032
29815040,0irq/29-eth0-tx-23462-21ssh10:56:082
29815040,0irq/29-eth0-tx-17161-21diskmemload11:35:572
29815040,0irq/29-eth0-tx-14227-21tail09:56:002
29815040,0irq/29-eth0-tx-0-21swapper/212:31:272
29815040,0irq/29-eth0-tx-0-21swapper/212:01:012
29815040,0irq/29-eth0-tx-0-21swapper/211:51:072
29815040,0irq/29-eth0-tx-0-21swapper/211:33:092
29815040,0irq/29-eth0-tx-0-21swapper/211:21:022
29815040,0irq/29-eth0-tx-0-21swapper/211:19:012
29815040,0irq/29-eth0-tx-0-21swapper/211:11:012
29815040,0irq/29-eth0-tx-0-21swapper/211:01:462
29815040,0irq/29-eth0-tx-0-21swapper/210:51:102
29815040,0irq/29-eth0-tx-0-21swapper/210:22:052
29815040,0irq/29-eth0-tx-0-21swapper/210:16:252
29815040,0irq/29-eth0-tx-0-21swapper/210:11:512
29815040,0irq/29-eth0-tx-0-21swapper/210:07:102
29815040,0irq/29-eth0-tx-0-21swapper/209:36:222
29815040,0irq/29-eth0-tx-0-21swapper/209:26:092
29815040,0irq/29-eth0-tx-0-21swapper/007:46:090
29805040,0irq/28-eth0-rx-849-21cut08:21:083
29805040,0irq/28-eth0-rx-0-21swapper/310:25:563
29805040,0irq/28-eth0-rx-0-21swapper/309:31:083
29805040,0irq/28-eth0-rx-0-21swapper/309:06:093
259940,0migration/29831-21aten_r1power_cu10:31:022
259940,0migration/226743-21munin-node08:16:112
259940,0migration/224956-21munin-node08:41:052
259940,0migration/219190-21munin-node07:26:082
259940,0migration/216091-21kthreadcore08:56:082
259940,0migration/210312-21kthreadcore11:26:102
249940,0watchdog/27160-21if_err_eth107:21:052
249940,0watchdog/223034-21sed08:36:102
249940,0watchdog/220460-21ssh12:26:312
249940,0watchdog/215753-21python11:46:142
249940,0watchdog/20-21swapper/212:36:112
249940,0watchdog/20-21swapper/210:36:062
249940,0watchdog/20-21swapper/208:26:102
179940,0migration/130858-21aten_r1power_en12:36:031
179940,0migration/13008-21fschecks_count07:41:031
179940,0migration/123893-21kthreadcore08:16:081
179940,0migration/123824-21taskset08:36:501
179940,0migration/123311-21fschecks_time11:16:041
179940,0migration/121517-21irqcore12:11:081
179940,0migration/116575-21kthreadcore09:36:091
179940,0migration/116312-21aten_r1power_cu10:16:021
179940,0migration/115137-21kthreadcore10:31:101
179940,0migration/113151-21taskset08:52:441
169940,0watchdog/15559-21sh09:51:021
169940,0watchdog/131331-21ssh10:05:541
169940,0watchdog/13095-21runrttasks12:16:191
169940,0watchdog/127880-21irqcore11:56:061
169940,0watchdog/119676-21ssh10:54:221
169940,0watchdog/119443-21if_err_eth110:36:061
169940,0watchdog/114941-21ssh12:44:151
169940,0watchdog/10-21swapper/111:26:101
149940,0migration/026889-21latency_hist10:40:510
149940,0migration/022805-21kthreadcore09:41:090
149940,0migration/02229-21kthreadcore11:01:090
149940,0migration/021172-21sh09:57:140
149940,0migration/013964-21fschecks_count08:11:040
149940,0migration/013350-21kthreadcore11:46:100
8305030,0irq/26-0000:00:0-21swapper/308:11:113
8305030,0irq/26-0000:00:0-21swapper/307:46:013
58879933,0cyclictest3571-21lldpd09:16:012
58879932,0cyclictest29191-21awk09:06:072
58869933,0cyclictest21551-21awk07:31:061
58869932,0cyclictest5252-21cat11:05:511
58869932,0cyclictest3571-21lldpd07:46:011
58869932,0cyclictest29167-21awk09:06:071
58869932,0cyclictest25478-21awk08:41:071
58869932,0cyclictest20188-21sed08:56:161
58869932,0cyclictest17161-21diskmemload12:07:481
58869930,0cyclictest3435-21perl09:31:041
58869930,0cyclictest0-21swapper/108:25:311
58859932,0cyclictest6884-21sadc12:40:520
58859932,0cyclictest3571-21lldpd11:58:050
58859932,0cyclictest31608-21munin-node08:46:060
58859932,0cyclictest31155-21sadc08:00:510
58859932,0cyclictest31155-21sadc08:00:510
58859932,0cyclictest29240-21awk09:06:080
58859932,0cyclictest27745-21cut10:01:090
58859932,0cyclictest12700-21awk12:06:080
58859930,0cyclictest27912-21munin-node08:21:030
329930,0watchdog/30-21swapper/307:56:103
329930,0watchdog/30-21swapper/307:56:103
29815030,0irq/29-eth0-tx-0-21swapper/008:51:030
29815030,0irq/29-eth0-tx-0-21swapper/007:21:010
29805030,0irq/28-eth0-rx-0-21swapper/307:26:023
259930,0migration/28848-21missed_timers09:11:102
259930,0migration/21140-21kthreadcore08:46:082
259930,0migration/210425-21kthreadcore08:51:092
179930,0migration/116699-21kthreadcore08:11:081
169930,0watchdog/10-21swapper/111:51:061
169930,0watchdog/10-21swapper/111:49:141
169930,0watchdog/10-21swapper/109:26:101
169930,0watchdog/10-21swapper/109:11:141
58869921,0cyclictest0-21swapper/108:00:511
58869920,0cyclictest0-21swapper/109:15:501
58859921,0cyclictest11202-21latency_hist09:35:510
58859920,0cyclictest0-21swapper/011:50:510
329920,0watchdog/30-21swapper/309:00:583
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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