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2026-05-22 - 11:11
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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
Characteristics of the highest latencies:
System rackeslot2.osadl.org (updated Fri May 22, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
320292521600,2sleep30-21swapper/322:05:013
337786721100,3sleep13355489-21kworker/1:0+cgroup_destroy23:59:591
32759462990,2sleep30-21swapper/322:50:063
31476862980,2sleep30-21swapper/321:27:333
32872732370,3sleep11-21systemd23:00:021
33300782360,0sleep13330079-21/usr/sbin/munin23:25:111
2969959993229,2cyclictest3393736-21apt-key00:10:010
31417632300,2sleep03141625-21ssh21:25:010
31797222290,2sleep20-21swapper/221:50:012
2969962992522,2cyclictest3417047-21latency_hist00:25:031
31125852240,2sleep0171ktimers/021:05:010
2969967992421,1cyclictest0-21swapper/223:25:022
2969967992421,1cyclictest0-21swapper/220:35:002
2969967992421,1cyclictest0-21swapper/219:55:012
2969959992421,2cyclictest3093549-21apt20:50:000
2969959992421,2cyclictest1290-21dbus-daemon23:50:010
2969959992413,6cyclictest0-21swapper/000:25:010
2969962992315,3cyclictest0-21swapper/123:50:001
2969959992312,6cyclictest3424625-21packagekitd00:34:570
2969959992312,6cyclictest0-21swapper/000:10:080
2969959992312,6cyclictest0-21swapper/000:10:080
2969967992220,1cyclictest0-21swapper/222:55:022
2969967992220,1cyclictest0-21swapper/200:10:032
2969962992219,2cyclictest3011627-21fschecks_count19:45:011
2969962992218,3cyclictest3149298-21fschecks_time21:30:011
2969962992214,3cyclictest0-21swapper/122:35:061
2969959992219,2cyclictest1-21systemd21:45:000
2969959992211,7cyclictest3149076-21sh21:30:010
2969967992119,1cyclictest0-21swapper/219:40:012
2969967992118,1cyclictest0-21swapper/222:00:012
2969967992118,1cyclictest0-21swapper/221:05:002
2969962992118,2cyclictest3424867-21/usr/sbin/munin00:30:031
2969962992118,2cyclictest2999385-21if_eno119:35:021
296995999212,10cyclictest3240918-21cat22:30:010
2969959992118,2cyclictest3263975-21fschecks_count22:45:000
2969959992118,2cyclictest0-21swapper/021:00:000
2969967992018,1cyclictest0-21swapper/220:50:012
2969967992018,1cyclictest0-21swapper/220:15:002
2969967992018,1cyclictest0-21swapper/219:35:012
2969967992017,1cyclictest0-21swapper/222:50:012
2969967992017,1cyclictest0-21swapper/222:50:002
2969962992017,2cyclictest3030372-21latency_hist20:00:031
2969962992017,2cyclictest1-21systemd19:25:021
2969959992017,2cyclictest3824565-21in:imuxsock22:10:000
2969959992017,2cyclictest2992913-21/usr/sbin/munin19:30:010
2969959992017,2cyclictest0-21swapper/020:00:030
2969959992016,3cyclictest3037541-21irqcore20:05:030
2969959992011,5cyclictest3187053-21systemd-run21:55:000
2969967991917,1cyclictest0-21swapper/222:40:022
2969967991916,2cyclictest0-21swapper/223:45:012
2969967991916,1cyclictest0-21swapper/220:20:002
2969967991915,2cyclictest3347773-21turbostat23:40:002
2969967991915,2cyclictest0-21swapper/221:31:552
2969962991916,2cyclictest3401839-21latency_hist00:15:021
2969962991916,2cyclictest3401839-21latency_hist00:15:021
2969962991916,2cyclictest1-21systemd21:25:021
2969962991916,2cyclictest0-21swapper/122:00:011
2969962991916,2cyclictest0-21swapper/121:40:011
2969962991916,2cyclictest0-21swapper/100:05:011
2969962991916,2cyclictest0-21swapper/100:05:011
2969962991915,3cyclictest1290-21dbus-daemon19:30:001
296995999199,5cyclictest0-21swapper/023:18:540
296995999193,5cyclictest191rcu_preempt21:30:060
2969959991916,2cyclictest3332585-21sh23:30:000
2969959991916,2cyclictest3087851-21if_err_eno120:45:020
2969959991916,2cyclictest2969950-21cyclictest21:05:040
2969959991916,2cyclictest1296-21polkitd00:40:010
2969959991916,2cyclictest1-21systemd23:40:020
2969959991910,7cyclictest3309789-21latency_hist23:15:000
2969959991910,5cyclictest0-21swapper/000:15:040
296995999190,3cyclictest3194122-21ssh21:59:080
2649091190,4phc2sys0-21swapper/323:39:583
2969967991816,1cyclictest0-21swapper/221:15:022
2969967991816,1cyclictest0-21swapper/220:30:012
2969967991816,1cyclictest0-21swapper/200:35:022
2969967991816,1cyclictest0-21swapper/200:00:022
2969967991816,1cyclictest0-21swapper/200:00:022
2969967991815,1cyclictest0-21swapper/223:20:002
2969967991815,1cyclictest0-21swapper/223:15:002
2969967991815,1cyclictest0-21swapper/222:35:012
2969967991815,1cyclictest0-21swapper/222:15:102
2969967991815,1cyclictest0-21swapper/222:05:012
2969967991815,1cyclictest0-21swapper/220:05:012
2969962991815,2cyclictest3368085-21mailstats23:50:121
2969962991815,2cyclictest3324696-21cpu23:25:001
2969962991815,2cyclictest3222845-21cat22:15:101
2969962991815,2cyclictest3210359-21sh22:10:011
2969962991815,2cyclictest3055641-21turbostat20:20:001
2969962991815,2cyclictest1-21systemd20:10:011
2969962991815,2cyclictest0-21swapper/120:55:001
2969962991814,2cyclictest1290-21dbus-daemon22:50:021
2969962991814,2cyclictest1290-21dbus-daemon22:50:021
2969962991814,2cyclictest0-21swapper/120:30:001
2969962991810,3cyclictest3350938-21kthreadcore23:40:061
296995999187,6cyclictest0-21swapper/021:49:590
2969959991816,1cyclictest3011471-21wc19:45:000
2969959991815,2cyclictest3386475-21if_enp1s000:05:020
2969959991815,2cyclictest3386475-21if_enp1s000:05:020
2969959991815,2cyclictest3081278-21head20:40:010
2969959991815,2cyclictest2980181-21idleruntime-cro19:20:000
2969959991815,2cyclictest1290-21dbus-daemon22:55:110
2969959991814,2cyclictest0-21swapper/020:30:010
2969959991810,6cyclictest0-21swapper/021:40:010
30597302170,1sleep03058288-21kthreadcore20:20:050
2969967991715,1cyclictest0-21swapper/223:55:022
2969967991715,1cyclictest0-21swapper/219:45:002
2969967991715,1cyclictest0-21swapper/200:25:022
2969967991714,1cyclictest0-21swapper/221:37:542
2969967991714,1cyclictest0-21swapper/221:00:002
296996299179,4cyclictest3301650-21ssh23:09:571
296996299179,3cyclictest0-21swapper/100:09:591
2969962991716,1cyclictest0-21swapper/100:31:271
2969962991714,2cyclictest3851705-21mta-sts-daemon23:36:341
2969962991714,2cyclictest3841370-21avahi-daemon00:35:111
2969962991714,2cyclictest3232997-21cstates22:25:001
2969962991714,2cyclictest3215066-21grep22:10:101
2969962991714,2cyclictest3074970-21grep20:35:001
2969962991714,2cyclictest2977096-21acpi19:15:021
2969962991714,2cyclictest0-21swapper/123:15:001
2969962991714,2cyclictest0-21swapper/122:05:011
2969962991714,2cyclictest0-21swapper/121:45:001
2969962991713,3cyclictest3119172-21tail21:10:031
2969962991712,2cyclictest3851704-21mta-sts-daemon00:19:291
2969962991710,2cyclictest383433398rtkit-daemon21:52:281
296995999178,8cyclictest0-21swapper/019:40:010
296995999178,5cyclictest3321936-21kthreadcore23:20:070
296995999176,6cyclictest0-21swapper/023:34:590
296995999176,6cyclictest0-21swapper/021:15:550
296995999173,8cyclictest2976178-21cpu19:14:590
296995999172,10cyclictest0-21swapper/023:42:470
2969959991715,1cyclictest3233057-21/usr/sbin/munin22:25:010
2969959991714,2cyclictest3256519-21systemd-run22:40:010
2969959991714,2cyclictest0-21swapper/020:55:000
2969959991713,3cyclictest2986401-21cstates19:25:000
296995999170,13cyclictest0-21swapper/020:34:560
2649091171,2phc2sys0-21swapper/321:17:123
2649091170,2phc2sys0-21swapper/323:42:503
383433398160,2rtkit-daemon0-21swapper/121:08:321
383433398160,2rtkit-daemon0-21swapper/120:44:401
2969967991614,1cyclictest0-21swapper/223:49:542
2969967991614,1cyclictest0-21swapper/222:45:012
2969967991614,1cyclictest0-21swapper/221:50:032
2969967991614,1cyclictest0-21swapper/200:40:002
2969967991613,1cyclictest0-21swapper/223:00:102
2969967991613,1cyclictest0-21swapper/222:10:002
2969967991613,1cyclictest0-21swapper/219:50:012
2969967991612,2cyclictest0-21swapper/223:30:012
296996299165,6cyclictest3036436-21aten2.4-expect20:04:571
2969962991613,2cyclictest3246386-21grep22:30:131
2969962991613,2cyclictest3233546-21gltestperf22:25:021
2969962991613,2cyclictest3172452-21hddtemp_smartct21:45:031
2969962991613,2cyclictest3024270-21cut19:55:021
2969962991613,2cyclictest3005551-21idleruntime19:40:011
2969962991613,2cyclictest0-21swapper/123:35:001
2969962991613,2cyclictest0-21swapper/121:00:011
2969962991613,2cyclictest0-21swapper/119:20:011
2969962991612,3cyclictest3153956-21pmu-power21:30:091
296995999169,6cyclictest2969950-21cyclictest22:00:060
296995999168,4cyclictest3118408-21diskmemload21:13:550
296995999166,5cyclictest0-21swapper/022:15:060
296995999163,6cyclictest3373201-21kthreadcore23:55:060
2969959991614,1cyclictest0-21swapper/019:50:010
2969959991613,2cyclictest3118408-21diskmemload23:04:210
2969959991612,3cyclictest3111760-21kworker/u16:3+nfsiod22:32:550
2649091160,3phc2sys0-21swapper/300:23:483
2969967991513,1cyclictest0-21swapper/221:25:012
2969967991513,1cyclictest0-21swapper/221:20:022
2969967991513,1cyclictest0-21swapper/220:25:002
2969967991513,1cyclictest0-21swapper/219:15:022
2969967991513,1cyclictest0-21swapper/219:10:012
2969967991512,1cyclictest0-21swapper/221:10:002
2969967991512,1cyclictest0-21swapper/219:25:012
2969967991512,1cyclictest0-21swapper/200:20:012
2969962991512,2cyclictest3834789-21rpcbind22:53:561
2969962991512,2cyclictest3312130-21kthreadcore23:15:051
2969962991512,2cyclictest0-21swapper/123:05:031
2969962991512,2cyclictest0-21swapper/122:45:021
2969962991512,2cyclictest0-21swapper/121:05:001
2969962991512,2cyclictest0-21swapper/120:25:021
2969962991511,2cyclictest3134243-21grep21:20:011
296995999158,1cyclictest0-21swapper/023:05:090
296995999157,7cyclictest0-21swapper/023:50:120
2969959991513,1cyclictest3851704-21mta-sts-daemon22:47:420
2969959991513,1cyclictest3851704-21mta-sts-daemon22:47:420
2969959991512,2cyclictest3421657-21mailstats00:25:120
2969959991512,2cyclictest1326-21systemd-logind20:10:020
2969959991512,2cyclictest0-21swapper/020:15:020
2969959991511,3cyclictest3210619-21kworker/u16:0+nfsiod22:10:170
2649091150,3phc2sys0-21swapper/322:34:153
2649091150,2phc2sys0-21swapper/323:33:433
2649091150,2phc2sys0-21swapper/323:27:283
2649091150,2phc2sys0-21swapper/323:09:483
2649091150,2phc2sys0-21swapper/322:58:413
2649091150,1phc2sys0-21swapper/322:18:163
2969967991412,1cyclictest0-21swapper/221:30:022
2969967991412,1cyclictest0-21swapper/220:55:022
2969967991412,1cyclictest0-21swapper/200:25:052
2969967991412,1cyclictest0-21swapper/200:15:012
2969967991412,1cyclictest0-21swapper/200:15:002
2969967991412,1cyclictest0-21swapper/200:00:012
2969967991411,2cyclictest0-21swapper/223:32:372
2969967991411,2cyclictest0-21swapper/220:35:022
2969967991411,1cyclictest0-21swapper/223:10:002
2969967991411,1cyclictest0-21swapper/222:25:002
2969967991411,1cyclictest0-21swapper/221:45:002
2969967991411,1cyclictest0-21swapper/219:55:062
2969967991411,1cyclictest0-21swapper/219:25:042
2969962991411,2cyclictest3093670-21tune2fs20:50:001
2969962991411,2cyclictest3079832-21timerandwakeup20:35:091
2969962991410,2cyclictest0-21swapper/120:15:011
296995999143,1cyclictest491rcuog/222:50:070
2969959991411,2cyclictest3851704-21mta-sts-daemon20:15:060
2969959991411,2cyclictest3023946-21cstates19:55:010
2969959991411,2cyclictest2993697-21kernelversion19:30:040
2969959991411,2cyclictest2970230-21cstates19:10:010
2649091140,2phc2sys0-21swapper/322:37:333
2649091140,2phc2sys0-21swapper/300:20:023
2649091140,1phc2sys0-21swapper/321:34:323
2969967991310,2cyclictest0-21swapper/222:56:482
2969967991310,2cyclictest0-21swapper/222:11:132
2969967991310,1cyclictest0-21swapper/220:07:592
296996299137,2cyclictest0-21swapper/119:49:561
296996299136,5cyclictest2970300-21expr19:10:011
2649091132,2phc2sys0-21swapper/323:05:033
2649091130,2phc2sys0-21swapper/323:46:403
2649091130,2phc2sys0-21swapper/322:42:503
2649091130,2phc2sys0-21swapper/322:12:223
2649091130,2phc2sys0-21swapper/321:57:533
2649091130,2phc2sys0-21swapper/321:10:593
2649091130,2phc2sys0-21swapper/320:43:573
2649091130,2phc2sys0-21swapper/320:35:043
2649091130,1phc2sys0-21swapper/320:09:443
2649091130,1phc2sys0-21swapper/319:58:223
296996799129,1cyclictest0-21swapper/219:15:322
2969967991210,1cyclictest0-21swapper/222:25:042
2649091125,3phc2sys0-21swapper/323:54:583
2649091120,3phc2sys0-21swapper/300:38:023
2649091120,2phc2sys0-21swapper/319:24:583
2649091120,1phc2sys0-21swapper/322:24:063
2649091120,1phc2sys0-21swapper/319:37:303
296996799119,1cyclictest0-21swapper/220:40:052
2649091116,2phc2sys0-21swapper/320:10:053
2649091111,4phc2sys0-21swapper/321:54:593
2649091111,2phc2sys0-21swapper/321:04:593
2649091111,2phc2sys0-21swapper/300:14:573
2649091111,2phc2sys0-21swapper/300:14:573
2649091111,2phc2sys0-21swapper/300:07:003
2649091110,4phc2sys0-21swapper/323:12:283
2649091110,4phc2sys0-21swapper/300:29:123
2649091110,1phc2sys0-21swapper/319:33:523
2649091110,1phc2sys0-21swapper/319:10:443
2649091101,3phc2sys0-21swapper/300:00:063
2649091101,3phc2sys0-21swapper/300:00:063
2649091101,2phc2sys0-21swapper/321:40:093
2649091101,2phc2sys0-21swapper/321:20:213
2649091101,2phc2sys0-21swapper/319:19:583
2649091100,3phc2sys0-21swapper/323:20:063
2649091100,2phc2sys0-21swapper/323:55:053
2649091100,2phc2sys0-21swapper/323:17:473
2649091100,2phc2sys0-21swapper/322:45:463
2649091100,2phc2sys0-21swapper/322:45:463
2649091100,2phc2sys0-21swapper/322:25:143
2649091100,2phc2sys0-21swapper/322:06:033
2649091100,2phc2sys0-21swapper/321:45:383
2649091100,2phc2sys0-21swapper/321:09:473
2649091100,2phc2sys0-21swapper/320:20:023
2649091100,2phc2sys0-21swapper/300:34:583
2649091100,1phc2sys0-21swapper/320:57:453
2649091100,1phc2sys0-21swapper/319:47:593
264909191,2phc2sys0-21swapper/320:29:073
264909191,2phc2sys0-21swapper/320:00:063
264909191,2phc2sys0-21swapper/319:05:113
264909190,2phc2sys0-21swapper/321:36:163
264909190,2phc2sys0-21swapper/320:30:363
264909190,2phc2sys0-21swapper/320:19:093
264909190,2phc2sys0-21swapper/319:25:023
264909181,3phc2sys0-21swapper/319:40:043
264909180,3phc2sys0-21swapper/319:50:023
264909180,2phc2sys0-21swapper/320:50:033
264909180,2phc2sys0-21swapper/320:45:023
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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