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2026-01-03 - 20:10
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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 Sat Jan 03, 2026 12:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1712524132,0sleep20-21swapper/207:08:592
1718123626,0sleep30-21swapper/307:09:363
1702323425,0sleep10-21swapper/107:07:451
1708723127,0sleep00-21swapper/007:08:290
8305070,0irq/26-0000:00:3206-17auditd07:21:483
339960,0migration/331247-21sh09:28:323
339960,0migration/329516-21sh10:02:353
339960,0migration/318236-21sh12:03:273
339960,0migration/313833-21sh10:49:363
339960,0migration/313082-21irqrtprio10:32:073
339960,0migration/311914-21sh11:24:483
339960,0migration/310016-21sh10:28:383
329960,0watchdog/38934-21munin-node12:37:133
29815060,0irq/29-eth0-tx-21304-21munin-node07:37:140
29805060,0irq/28-eth0-rx-2321-21diskstats11:57:013
29805060,0irq/28-eth0-rx-0-21swapper/310:07:203
174429960,0cyclictest0-21swapper/208:47:062
149960,0migration/025833-21kthreadcore10:37:050
149960,0migration/022357-21sh10:53:330
149960,0migration/012797-21sh12:18:380
8305050,0irq/26-0000:00:4655-21latency_hist09:51:492
4150,0ktimersoftd/00-21swapper/012:39:000
339950,0migration/38896-21kthreadcore09:17:073
339950,0migration/35773-21sh11:38:163
339950,0migration/332400-21munin-node08:07:013
339950,0migration/331010-21kthreadcore11:17:063
339950,0migration/330741-21taskset10:57:173
339950,0migration/328846-21taskset09:11:583
339950,0migration/326150-21munin-node08:47:043
339950,0migration/325248-21latency_hist11:51:493
339950,0migration/324575-21taskset08:42:553
339950,0migration/320402-21munin-node12:07:043
339950,0migration/319307-21kthreadcore12:22:063
339950,0migration/319190-21munin-node09:41:593
339950,0migration/314967-21latency_hist10:51:503
329950,0watchdog/315060-21hwlatdetect07:32:043
329950,0watchdog/30-21swapper/309:22:003
29815050,0irq/29-eth0-tx-28923-21munin-node12:12:062
29815050,0irq/29-eth0-tx-23896-21munin-node09:27:152
29815050,0irq/29-eth0-tx-20314-21cat11:12:062
29815050,0irq/29-eth0-tx-19948-21kthreadcore10:17:052
29815050,0irq/29-eth0-tx-14079-21munin-node07:32:110
29815050,0irq/29-eth0-tx-0-21swapper/211:56:172
29815050,0irq/29-eth0-tx-0-21swapper/211:42:562
29815050,0irq/29-eth0-tx-0-21swapper/210:37:072
29815050,0irq/29-eth0-tx-0-21swapper/209:42:022
29815050,0irq/29-eth0-tx-0-21swapper/007:44:370
29815050,0irq/29-eth0-tx-0-21swapper/007:17:010
29805050,0irq/28-eth0-rx-9137-21ssh11:06:143
29805050,0irq/28-eth0-rx-27326-21iostat_ios10:22:063
29805050,0irq/28-eth0-rx-20811-21kthreadcore07:57:073
29805050,0irq/28-eth0-rx-20115-21swap09:57:153
29805050,0irq/28-eth0-rx-0-21swapper/312:32:333
29805050,0irq/28-eth0-rx-0-21swapper/312:27:003
29805050,0irq/28-eth0-rx-0-21swapper/312:12:093
29805050,0irq/28-eth0-rx-0-21swapper/311:26:543
29805050,0irq/28-eth0-rx-0-21swapper/311:12:073
29805050,0irq/28-eth0-rx-0-21swapper/311:08:253
29805050,0irq/28-eth0-rx-0-21swapper/310:37:053
29805050,0irq/28-eth0-rx-0-21swapper/310:12:143
29805050,0irq/28-eth0-rx-0-21swapper/309:47:233
29805050,0irq/28-eth0-rx-0-21swapper/309:39:213
29805050,0irq/28-eth0-rx-0-21swapper/309:32:073
29805050,0irq/28-eth0-rx-0-21swapper/308:22:053
26154250,0sleep026419-21df10:22:020
259950,0migration/28544-21irqrtprio08:12:072
259950,0migration/27644-21sh11:02:452
259950,0migration/27388-21timerwakeupswit09:32:152
259950,0migration/24902-21fschecks_time11:22:022
259950,0migration/228151-21fschecks_time11:17:022
259950,0migration/223628-21sh10:56:352
259950,0migration/222885-21sh12:26:222
259950,0migration/218430-21kthreadcore11:27:072
249950,0watchdog/231537-21ssh10:06:522
249950,0watchdog/228840-21ssh10:02:122
249950,0watchdog/214709-21munin-node09:22:002
19150,0ktimersoftd/10-21swapper/109:33:461
174429955,0cyclictest28596-21diskmemload12:39:572
174429955,0cyclictest28596-21diskmemload12:01:202
174429955,0cyclictest28596-21diskmemload10:00:052
174429955,0cyclictest25140-21kthreadcore07:37:152
174429955,0cyclictest0-21swapper/209:39:262
174429954,0cyclictest3288-21sh09:49:032
174409950,0cyclictest0-21swapper/012:02:570
174409950,0cyclictest0-21swapper/011:58:040
174409950,0cyclictest0-21swapper/011:13:270
174409950,0cyclictest0-21swapper/009:21:500
169950,0watchdog/123354-21kthreadcore07:12:071
149950,0migration/0992-21if_eth012:32:050
149950,0migration/09335-21kthreadcore08:57:070
149950,0migration/09284-21timerwakeupswit10:27:160
149950,0migration/08862-21sh11:05:360
149950,0migration/08484-21kthreadcore11:22:060
149950,0migration/07745-21fschecks_time08:12:030
149950,0migration/07190-21taskset09:32:130
149950,0migration/05278-21latency_hist12:16:490
149950,0migration/0506-21kthreadcore09:47:070
149950,0migration/03431-21kthreadcore08:52:190
149950,0migration/032159-21fschecks_count10:07:040
149950,0migration/031982-21idleruntime11:37:060
149950,0migration/030446-21kthreadcore08:47:080
149950,0migration/030277-21irqcore09:12:100
149950,0migration/029465-21kthreadcore08:02:070
149950,0migration/027896-21kthreadcore11:52:080
149950,0migration/027008-21kthreadcore08:22:070
149950,0migration/02648-21kthreadcore10:42:070
149950,0migration/024087-21aten_r1power_en10:57:020
149950,0migration/023504-21munin-node10:17:100
149950,0migration/019980-21fschecks_time09:42:010
149950,0migration/018697-21kthreadcore11:47:070
149950,0migration/018276-21fschecks_count07:12:030
149950,0migration/016326-21latency07:52:080
149950,0migration/015717-21irqcore09:02:050
149950,0migration/012241-21fschecks_count10:32:040
8305040,0irq/26-0000:00:0-21swapper/210:56:502
339940,0migration/36941-21kthreadcore08:32:063
339940,0migration/34052-21fschecks_time07:47:023
339940,0migration/323859-21kthreadcore09:07:043
339940,0migration/321923-21diskmemload11:31:493
329940,0watchdog/323355-21kthreadcore07:12:073
329940,0watchdog/311679-21ssh12:17:133
329940,0watchdog/310818-21aten_r1power_po08:37:003
329940,0watchdog/30-21swapper/308:17:083
329940,0watchdog/30-21swapper/308:12:083
329940,0watchdog/30-21swapper/307:37:163
29815040,0irq/29-eth0-tx-0-21swapper/212:26:512
29815040,0irq/29-eth0-tx-0-21swapper/212:07:052
29815040,0irq/29-eth0-tx-0-21swapper/211:46:542
29815040,0irq/29-eth0-tx-0-21swapper/211:37:032
29815040,0irq/29-eth0-tx-0-21swapper/211:31:562
29815040,0irq/29-eth0-tx-0-21swapper/211:07:022
29815040,0irq/29-eth0-tx-0-21swapper/210:32:012
29815040,0irq/29-eth0-tx-0-21swapper/210:22:152
29815040,0irq/29-eth0-tx-0-21swapper/210:12:152
29815040,0irq/29-eth0-tx-0-21swapper/209:16:532
29815040,0irq/29-eth0-tx-0-21swapper/008:32:080
29815040,0irq/29-eth0-tx-0-21swapper/007:47:000
29805040,0irq/28-eth0-rx-0-21swapper/311:47:143
29805040,0irq/28-eth0-rx-0-21swapper/311:42:013
29805040,0irq/28-eth0-rx-0-21swapper/310:42:433
29805040,0irq/28-eth0-rx-0-21swapper/310:17:103
29805040,0irq/28-eth0-rx-0-21swapper/309:52:073
29805040,0irq/28-eth0-rx-0-21swapper/308:57:013
259940,0migration/26708-21kthreadcore10:27:092
259940,0migration/26042-21fschecks_count12:17:052
259940,0migration/24238-21runrttasks10:43:042
259940,0migration/228623-21kthreadcore08:02:072
259940,0migration/227631-21kthreadcore07:17:072
259940,0migration/222325-21kthreadcore07:12:072
259940,0migration/221831-21df_abs08:22:022
259940,0migration/22006-21kthreadcore08:52:182
259940,0migration/211237-21kthreadcore08:57:072
259940,0migration/210988-21aten_r1power_cu12:02:022
249940,0watchdog/26134-21aten2.4-expect10:47:002
249940,0watchdog/223201-21kthreadcore09:07:042
249940,0watchdog/222512-21grep08:42:082
249940,0watchdog/221709-21kthreadcore07:57:082
249940,0watchdog/20-21swapper/212:33:092
249940,0watchdog/20-21swapper/207:32:042
174429944,0cyclictest0-21swapper/209:13:442
174429943,0cyclictest832-21awk08:07:042
174429943,0cyclictest8036-21awk07:27:062
174429943,0cyclictest4558-21awk08:32:042
174429943,0cyclictest29682-21awk08:27:052
174429943,0cyclictest15560-21awk09:02:042
174429943,0cyclictest15350-21awk08:17:052
174419944,0cyclictest0-21swapper/109:46:561
174419943,0cyclictest8079-21awk08:12:051
174419943,0cyclictest6187-21cut09:17:031
174419943,0cyclictest3571-21lldpd12:27:131
174419943,0cyclictest3571-21lldpd12:11:141
174419943,0cyclictest3571-21lldpd11:50:431
174419943,0cyclictest3571-21lldpd11:23:431
174419943,0cyclictest3571-21lldpd11:17:431
174419943,0cyclictest3571-21lldpd10:13:091
174419943,0cyclictest3571-21lldpd09:53:391
174419943,0cyclictest3571-21lldpd09:09:091
174419943,0cyclictest3571-21lldpd07:48:081
174419943,0cyclictest3524-21snmpd12:32:391
174419943,0cyclictest3524-21snmpd10:36:521
174419943,0cyclictest3524-21snmpd10:29:371
174419943,0cyclictest3524-21snmpd07:31:491
174419943,0cyclictest3250-21irqbalance11:29:361
174419943,0cyclictest3250-21irqbalance09:11:551
174419943,0cyclictest30703-21awk10:42:051
174419943,0cyclictest16236-21awk10:52:071
174419943,0cyclictest15584-21awk12:22:041
174419943,0cyclictest11143-21awk09:37:061
174419943,0cyclictest1083-21awk08:52:171
174419943,0cyclictest10044-21awk12:37:061
174409944,0cyclictest0-21swapper/009:40:260
174409943,0cyclictest3571-21lldpd11:17:130
174409943,0cyclictest3571-21lldpd11:10:130
174409943,0cyclictest3571-21lldpd07:23:080
174409943,0cyclictest31742-21kworker/0:212:28:350
174409943,0cyclictest21036-21awk12:07:060
179940,0migration/19477-21kthreadcore12:17:101
179940,0migration/19301-21kthreadcore10:47:071
179940,0migration/131370-21kthreadcore10:22:081
179940,0migration/125044-21hwlatdetect10:57:061
179940,0migration/125009-21kthreadcore11:32:081
179940,0migration/121628-21kthreadcore07:57:081
179940,0migration/121042-21run-parts09:02:491
179940,0migration/110445-21taskset08:36:251
169940,0watchdog/1318002chrt08:48:321
169940,0watchdog/131176-21ssh09:28:241
169940,0watchdog/126883-21cut07:37:161
169940,0watchdog/12299-21cut10:07:081
169940,0watchdog/12112-21kthreadcore12:12:091
169940,0watchdog/119703-21ssh11:12:041
169940,0watchdog/115354-21kthreadcore09:57:081
169940,0watchdog/113430-21latency11:42:081
169940,0watchdog/110479-21kthreadcore07:27:081
169940,0watchdog/110344-21ssh12:01:041
169940,0watchdog/10-21swapper/112:02:041
169940,0watchdog/10-21swapper/111:53:121
169940,0watchdog/10-21swapper/111:37:081
169940,0watchdog/10-21swapper/111:07:081
169940,0watchdog/10-21swapper/110:32:081
169940,0watchdog/10-21swapper/110:21:161
169940,0watchdog/10-21swapper/109:22:001
169940,0watchdog/10-21swapper/108:57:081
169940,0watchdog/10-21swapper/108:37:001
149940,0migration/031048-21diskmemload10:06:140
149940,0migration/024545-21kthreadcore11:32:080
149940,0migration/024398-21fschecks_count09:27:030
149940,0migration/021098-21sh11:30:230
149940,0migration/018375-21ksmtuned08:42:020
149940,0migration/012860-21ntp_kernel_err07:27:100
329930,0watchdog/30-21swapper/308:05:203
329930,0watchdog/30-21swapper/307:27:043
329930,0watchdog/30-21swapper/307:21:523
29805030,0irq/28-eth0-rx-0-21swapper/309:02:003
29805030,0irq/28-eth0-rx-0-21swapper/308:53:593
29805030,0irq/28-eth0-rx-0-21swapper/308:27:023
29805030,0irq/28-eth0-rx-0-21swapper/307:52:013
29805030,0irq/28-eth0-rx-0-21swapper/307:44:373
249930,0watchdog/20-21swapper/208:37:002
174429933,0cyclictest3571-21lldpd07:47:072
174429933,0cyclictest3571-21lldpd07:22:382
174429932,0cyclictest29592-21awk07:42:042
174429932,0cyclictest15138-21kthreadcore07:52:072
174419932,0cyclictest3571-21lldpd07:43:071
174419932,0cyclictest3524-21snmpd07:54:391
174419932,0cyclictest32724-21grep08:27:081
174419932,0cyclictest25488-21tune2fs08:02:021
174419932,0cyclictest20063-21tune2fs09:42:011
174419930,0cyclictest32579-21diskstats08:07:011
174409933,0cyclictest9744-21kworker/0:210:46:520
174409933,0cyclictest9744-21kworker/0:210:12:020
174409933,0cyclictest9744-21kworker/0:209:57:200
174409933,0cyclictest9744-21kworker/0:209:51:500
174409933,0cyclictest9744-21kworker/0:209:16:500
174409933,0cyclictest9744-21kworker/0:209:06:500
174409933,0cyclictest9744-21kworker/0:208:37:000
174409933,0cyclictest4027-21kworker/0:111:41:570
174409933,0cyclictest31742-21kworker/0:212:22:030
174409933,0cyclictest22426-21kworker/0:008:26:520
174409933,0cyclictest2200-21kworker/0:208:16:560
174409933,0cyclictest2200-21kworker/0:208:07:020
174409933,0cyclictest2200-21kworker/0:207:57:000
169930,0watchdog/128596-21diskmemload11:03:401
169930,0watchdog/10-21swapper/110:02:081
169930,0watchdog/10-21swapper/108:42:081
169930,0watchdog/10-21swapper/108:21:521
169930,0watchdog/10-21swapper/108:16:521
169930,0watchdog/10-21swapper/107:21:521
169930,0watchdog/10-21swapper/107:17:031
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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