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2026-09-17 - 07:30
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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 Thu Sep 17, 2026 00:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
527125344,0sleep10-21swapper/119:32:291
516524839,0sleep20-21swapper/219:31:182
497424232,0sleep30-21swapper/319:29:033
510423127,0sleep00-21swapper/019:30:320
53809988,0cyclictest4130-21sensors22:18:181
29805070,0irq/28-eth0-rx-27679-21diskstats23:13:103
53799960,0cyclictest3189-21python23:33:230
4160,0ktimersoftd/00-21swapper/000:18:100
339960,0migration/36571-21munin-node23:38:143
339960,0migration/33321-21sh22:00:363
339960,0migration/326836-21sh23:12:343
339960,0migration/325500-21sh21:38:073
339960,0migration/318535-21latency_hist23:07:563
259960,0migration/21664-21kthreadcore22:18:142
8305050,0irq/26-0000:00:0-21swapper/319:42:563
53819955,0cyclictest0-21swapper/200:27:582
53819950,0cyclictest0-21swapper/223:11:202
53819950,0cyclictest0-21swapper/223:03:562
53819950,0cyclictest0-21swapper/220:03:152
53799955,0cyclictest0-21swapper/022:38:120
53799955,0cyclictest0-21swapper/022:37:250
53799955,0cyclictest0-21swapper/022:13:550
53799955,0cyclictest0-21swapper/022:06:310
53799950,0cyclictest9551-21idleruntime-cro21:27:570
53799950,0cyclictest0-21swapper/023:27:330
53799950,0cyclictest0-21swapper/000:33:080
339950,0migration/39182-21fschecks_time22:43:103
339950,0migration/39078-21taskset20:40:123
339950,0migration/37456-21irqrtprio21:03:123
339950,0migration/36752-21gltestperf20:18:093
339950,0migration/36296-21kthreadcore22:58:163
339950,0migration/3476-21kthreadcore21:18:163
339950,0migration/33750-21kthreadcore19:53:143
339950,0migration/3375-21kthreadcore20:33:143
339950,0migration/33569-21kthreadcore23:53:143
339950,0migration/329531-21kthreadcore00:28:183
339950,0migration/327128-21kthreadcore00:08:153
339950,0migration/325685-21kthreadcore22:13:143
339950,0migration/323485-21fschecks_time23:48:113
339950,0migration/323107-21kthreadcore20:28:133
339950,0migration/320739-21munin-node23:28:093
339950,0migration/319960-21cpuspeed_turbos00:43:103
339950,0migration/317400-21kthreadcore23:23:143
339950,0migration/315965-21timerwakeupswit20:43:223
339950,0migration/314219-21irqcore20:23:133
339950,0migration/310274-21kthreadcore23:58:153
329950,0watchdog/329208-21kthreadcore19:48:113
329950,0watchdog/323871-21ssh21:34:233
329950,0watchdog/313466-21diskstats22:08:083
29815050,0irq/29-eth0-tx-510-21ssh22:56:062
29815050,0irq/29-eth0-tx-28268-21munin-node00:48:102
29815050,0irq/29-eth0-tx-20659-21munin-node23:28:092
29815050,0irq/29-eth0-tx-12449-40yum-updatesd-he19:35:500
29815050,0irq/29-eth0-tx-0-21swapper/223:00:522
29815050,0irq/29-eth0-tx-0-21swapper/222:03:392
29815050,0irq/29-eth0-tx-0-21swapper/200:10:582
29815050,0irq/29-eth0-tx-0-21swapper/200:07:372
29805050,0irq/28-eth0-rx-8685-21grep00:53:173
29805050,0irq/28-eth0-rx-4643-21ssh22:18:453
29805050,0irq/28-eth0-rx-4455-21munin-node22:03:203
29805050,0irq/28-eth0-rx-2946-21ntp_states23:33:193
29805050,0irq/28-eth0-rx-17567-21fschecks_time22:48:113
29805050,0irq/28-eth0-rx-16599-21fschecks_time00:03:113
29805050,0irq/28-eth0-rx-15387-21irqcore23:43:123
29805050,0irq/28-eth0-rx-15029-21cut22:28:083
29805050,0irq/28-eth0-rx-14563-21kthreadcore00:38:143
29805050,0irq/28-eth0-rx-12705-21python22:23:183
29805050,0irq/28-eth0-rx-0-21swapper/322:40:273
29805050,0irq/28-eth0-rx-0-21swapper/321:55:293
29805050,0irq/28-eth0-rx-0-21swapper/321:43:143
29805050,0irq/28-eth0-rx-0-21swapper/319:38:093
29805050,0irq/28-eth0-rx-0-21swapper/300:49:073
29805050,0irq/28-eth0-rx-0-21swapper/300:33:153
29805050,0irq/28-eth0-rx-0-21swapper/300:13:583
27150,0ktimersoftd/20-21swapper/222:38:332
259950,0migration/27414-21aten_r1power_en23:58:092
259950,0migration/26241-21kthreadcore00:33:152
259950,0migration/220180-21kthreadcore00:23:152
259950,0migration/215869-21sh22:45:542
249950,0watchdog/219995-21ssh22:09:082
179950,0migration/18378-21munin-node21:23:151
179950,0migration/18156-21latency20:38:181
179950,0migration/18061-21latency_hist22:42:571
179950,0migration/14233-21kthreadcore22:58:151
179950,0migration/127142-21kthreadcore20:53:131
179950,0migration/126846-21taskset21:54:541
179950,0migration/119052-21latency21:08:161
179950,0migration/117596-21sh23:05:331
179950,0migration/114944-21kthreadcore20:23:131
169950,0watchdog/128560-21gltestperf21:18:111
149950,0migration/07867-21rt-features22:58:190
149950,0migration/07337-21sh23:58:020
149950,0migration/031297-21kthreadcore21:38:160
149950,0migration/027751-21sh21:57:220
149950,0migration/026212-21kthreadcore23:28:160
149950,0migration/022301-21sh22:30:200
149950,0migration/019128-21kthreadcore21:33:150
149950,0migration/01194-21ntp_offset21:18:180
149950,0migration/010781-21irqcore20:43:130
53819944,0cyclictest0-21swapper/223:17:582
53819943,0cyclictest7082-21awk21:03:112
53819943,0cyclictest3524-21snmpd23:22:582
53819943,0cyclictest3524-21snmpd22:23:282
53819943,0cyclictest3524-21snmpd20:43:122
53819943,0cyclictest3524-21snmpd20:35:272
53819943,0cyclictest3524-21snmpd00:57:592
53819943,0cyclictest3426-21awk20:38:152
53819943,0cyclictest24805-21awk20:08:122
53819943,0cyclictest20567-21awk21:53:112
53819943,0cyclictest17808-21awk20:48:112
53819943,0cyclictest16033-21awk22:28:122
53819943,0cyclictest14419-21awk21:08:132
53819943,0cyclictest10408-21awk19:58:112
53809943,0cyclictest6598-21awk23:38:141
53809943,0cyclictest3524-21snmpd21:01:271
53809943,0cyclictest3524-21snmpd00:49:141
53809943,0cyclictest3524-21snmpd00:34:441
53809943,0cyclictest3524-21snmpd00:20:291
53809943,0cyclictest3524-21snmpd00:16:591
53809943,0cyclictest3524-21snmpd00:10:291
53809943,0cyclictest13952-21awk19:38:131
53809943,0cyclictest10896-21awk21:28:141
53799943,0cyclictest5789-21sadc21:02:560
53799943,0cyclictest3571-21lldpd20:52:340
53799943,0cyclictest3571-21lldpd00:26:240
53799943,0cyclictest3524-21snmpd22:22:430
53799943,0cyclictest3524-21snmpd20:19:570
53799943,0cyclictest32197-21awk23:53:110
53799943,0cyclictest29441-21awk00:48:130
53799943,0cyclictest28303-21awk19:48:090
53799943,0cyclictest21378-21awk20:28:110
53799943,0cyclictest19832-21sadc19:42:560
53799943,0cyclictest17024-21awk00:03:130
53799943,0cyclictest16294-21sadc20:02:560
53799940,0cyclictest0-21swapper/021:12:360
339940,0migration/39199-21latency_hist00:17:573
339940,0migration/329132-21kthreadcore20:08:153
339940,0migration/324247-21fschecks_time22:33:103
339940,0migration/322416-21kthreadcore20:48:143
339940,0migration/316208-21kthreadcore21:08:153
339940,0migration/312365-21taskset19:34:513
329940,0watchdog/317742-21ps20:03:113
329940,0watchdog/30-21swapper/320:58:073
329940,0watchdog/30-21swapper/300:58:163
329940,0watchdog/30-21swapper/300:23:123
29815040,0irq/29-eth0-tx-19711-21ssh00:43:072
29815040,0irq/29-eth0-tx-0-21swapper/223:53:452
29815040,0irq/29-eth0-tx-0-21swapper/223:33:482
29815040,0irq/29-eth0-tx-0-21swapper/222:48:172
29815040,0irq/29-eth0-tx-0-21swapper/222:33:032
29815040,0irq/29-eth0-tx-0-21swapper/222:13:042
29815040,0irq/29-eth0-tx-0-21swapper/221:58:092
29815040,0irq/29-eth0-tx-0-21swapper/221:48:592
29815040,0irq/29-eth0-tx-0-21swapper/221:43:322
29815040,0irq/29-eth0-tx-0-21swapper/200:39:042
29815040,0irq/29-eth0-tx-0-21swapper/200:18:082
29815040,0irq/29-eth0-tx-0-21swapper/020:33:080
29815040,0irq/29-eth0-tx-0-21swapper/020:08:080
29815040,0irq/29-eth0-tx-0-21swapper/019:53:070
29805040,0irq/28-eth0-rx-0-21swapper/323:18:533
29805040,0irq/28-eth0-rx-0-21swapper/322:54:013
29805040,0irq/28-eth0-rx-0-21swapper/321:48:133
29805040,0irq/28-eth0-rx-0-21swapper/321:28:233
29805040,0irq/28-eth0-rx-0-21swapper/321:23:073
29805040,0irq/28-eth0-rx-0-21swapper/320:57:293
259940,0migration/25418-21munin-node00:53:132
259940,0migration/24358-21kthreadcore00:13:142
259940,0migration/232162-21kthreadcore23:13:152
259940,0migration/230849-21kthreadcore19:48:122
259940,0migration/229456-21kthreadcore21:38:152
259940,0migration/223634-21idleruntime23:48:122
259940,0migration/22148-21kthreadcore20:58:142
259940,0migration/215688-21kthreadcore19:38:152
259940,0migration/214228-21cpuspeed_turbos23:43:082
259940,0migration/213143-21munin-node20:23:082
259940,0migration/210499-21kthreadcore23:38:162
249940,0watchdog/228557-21sed21:18:112
249940,0watchdog/222151-21tr21:33:152
249940,0watchdog/220379-21aten2.4-expect20:28:072
249940,0watchdog/20-21swapper/221:28:152
249940,0watchdog/20-21swapper/220:13:152
249940,0watchdog/20-21swapper/219:53:112
179940,0migration/17474-21kthreadcore00:53:171
179940,0migration/132525-21kthreadcore23:13:151
179940,0migration/1317-21kthreadcore20:33:141
179940,0migration/130591-21taskset20:12:131
179940,0migration/129235-21sh21:58:111
179940,0migration/127961-21kthreadcore22:53:141
179940,0migration/127234-21kthreadcore21:38:151
179940,0migration/125053-21kernelversion22:33:141
179940,0migration/124528-21kthreadcore23:48:141
179940,0migration/12174-21kthreadcore23:33:181
179940,0migration/121437-21kthreadcore22:48:151
179940,0migration/121350-21kthreadcore00:03:161
179940,0migration/119424-21kthreadcore22:28:141
179940,0migration/114558-21fschecks_count23:43:091
179940,0migration/112495-21kthreadcore21:48:141
169940,0watchdog/14071-21fschecks_count23:18:121
169940,0watchdog/131362-21sort23:53:081
169940,0watchdog/12804-21kthreadcore20:13:151
169940,0watchdog/126530-21latency23:28:161
169940,0watchdog/122150-21cut21:33:151
169940,0watchdog/119221-21port_sshpriv22:08:161
169940,0watchdog/117741-21irqcore20:03:111
169940,0watchdog/115308-21ssh22:44:161
169940,0watchdog/113277-21ssh22:23:561
169940,0watchdog/10-21swapper/122:03:121
169940,0watchdog/10-21swapper/119:48:111
169940,0watchdog/10-21swapper/100:58:161
169940,0watchdog/10-21swapper/100:41:361
169940,0watchdog/10-21swapper/100:32:561
169940,0watchdog/10-21swapper/100:23:121
149940,0migration/08180-21kthreadcore23:18:170
149940,0migration/08003-21kthreadcore21:03:130
149940,0migration/06344-21kthreadcore00:53:160
149940,0migration/031316-21sh00:08:430
149940,0migration/02957-21munin-node21:43:110
149940,0migration/024749-21fschecks_time20:53:100
149940,0migration/024097-21kthreadcore21:13:150
149940,0migration/018848-21aten_r1power_vo23:08:090
149940,0migration/015066-21kthreadcore21:48:150
149940,0migration/014876-21kthreadcore00:58:150
149940,0migration/014530-21kthreadcore00:38:140
149940,0migration/011737-21kthreadcore23:03:120
53819932,0cyclictest6879-21awk20:18:112
53819932,0cyclictest3525-21awk21:23:112
53819932,0cyclictest24967-21awk20:53:112
53819930,0cyclictest21158-21tune2fs21:13:112
53819930,0cyclictest20924-21perl19:43:102
53819930,0cyclictest0-21swapper/219:35:502
53809933,0cyclictest6671-21awk19:33:111
53809932,0cyclictest7247-21grep21:03:121
53809932,0cyclictest3524-21snmpd21:17:271
53809932,0cyclictest3524-21snmpd00:00:131
53809932,0cyclictest3067-21awk21:43:121
53809932,0cyclictest27898-21sensors22:13:181
53809932,0cyclictest20876-21grep19:43:101
53809932,0cyclictest20487-21tune2fs00:43:111
53809932,0cyclictest19784-21awk23:08:131
53809932,0cyclictest17838-21awk20:48:121
53809932,0cyclictest16520-21cut23:23:141
53809930,0cyclictest7775-21grep20:18:131
53809930,0cyclictest10203-21perl19:58:101
53799932,0cyclictest8192-21date22:42:570
53799932,0cyclictest6250-21latency_hist22:22:570
53799932,0cyclictest3524-21snmpd23:42:030
53799932,0cyclictest3524-21snmpd20:41:290
53799932,0cyclictest3524-21snmpd00:27:590
53799932,0cyclictest29359-21awk21:58:120
53799932,0cyclictest28395-21awk23:13:130
53799932,0cyclictest25304-21ssh22:52:590
53799932,0cyclictest20397-21df_abs19:43:090
53799932,0cyclictest18028-21awk22:48:130
53799932,0cyclictest16746-21awk20:03:070
53799932,0cyclictest15104-21awk23:43:110
53799932,0cyclictest1135-21grep00:13:100
53799932,0cyclictest10920-21awk21:28:140
53799931,0cyclictest0-21swapper/022:08:120
53799930,0cyclictest31325-21diskstats20:13:100
53799930,0cyclictest28462-21latency23:48:150
53799930,0cyclictest20259-21grep00:43:110
329930,0watchdog/30-21swapper/319:58:273
29805030,0irq/28-eth0-rx-0-21swapper/321:13:093
29805030,0irq/28-eth0-rx-0-21swapper/320:13:093
169930,0watchdog/120380-21head20:28:071
169930,0watchdog/115372-21latency20:43:151
169930,0watchdog/10-21swapper/119:53:111
149930,0migration/014432-21irqrtprio20:23:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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