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2026-04-06 - 10:34
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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 Mon Apr 06, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
290163121600,2sleep12901635-21gltestperf20:01:061
330393521030,3sleep30-21swapper/300:40:013
29256212760,2sleep01-21systemd20:20:010
2834311992623,1cyclictest0-21swapper/223:15:022
2834300992515,6cyclictest0-21swapper/021:30:010
2834300992314,5cyclictest3218871-21kthreadcore23:41:110
32714892210,2sleep20-21swapper/200:16:112
2834311992118,1cyclictest0-21swapper/222:40:012
2834311992118,1cyclictest0-21swapper/219:15:012
2834300992118,2cyclictest3124171-21systemd22:40:020
2834300992118,2cyclictest0-21swapper/019:50:010
2834311992017,1cyclictest0-21swapper/200:35:012
2834307992017,2cyclictest3168902-21systemd23:10:011
2834307992016,2cyclictest0-21swapper/100:20:021
283430099209,6cyclictest0-21swapper/023:56:070
283430099209,6cyclictest0-21swapper/022:46:080
283430099204,4cyclictest0-21swapper/000:34:150
2834300992017,2cyclictest3094117-21grep22:20:010
2834300992014,5cyclictest3055933-21runrttasks21:53:550
2834300992014,5cyclictest3055933-21runrttasks21:53:550
2834300992013,6cyclictest3142906-21kthreadcore22:51:090
2834311991917,1cyclictest0-21swapper/221:00:022
2834311991917,1cyclictest0-21swapper/220:00:012
2834311991916,1cyclictest0-21swapper/200:25:012
283430799198,7cyclictest3851702-21mta-sts-daemon23:45:101
2834307991917,1cyclictest3116696-21latency_hist22:35:021
2834307991916,2cyclictest2888190-21grep19:50:021
2834307991916,2cyclictest2881357-21apt-key19:45:011
2834307991913,2cyclictest3087837-21/usr/sbin/munin22:16:061
2834307991912,3cyclictest3047011-21grep21:46:131
283430099198,6cyclictest0-21swapper/021:15:000
2834300991917,1cyclictest3236328-21/usr/sbin/munin23:55:000
2834300991916,2cyclictest3003066-21cron21:20:000
2834300991916,2cyclictest2881578-21packagekitd19:45:010
2834300991910,7cyclictest0-21swapper/000:11:140
283430099190,5cyclictest3273764-21ssh00:19:100
2834311991816,1cyclictest0-21swapper/219:20:012
2834311991815,1cyclictest0-21swapper/223:21:022
2834311991815,1cyclictest0-21swapper/220:01:142
2834311991815,1cyclictest0-21swapper/200:40:012
2834311991814,2cyclictest0-21swapper/222:25:002
283431199181,13cyclictest0-21swapper/223:20:002
283431199180,10cyclictest0-21swapper/222:20:002
283430799189,4cyclictest0-21swapper/100:05:011
2834307991815,2cyclictest3827634-1atopacctd19:26:141
2834307991815,2cyclictest3183826-21cut23:20:001
2834307991815,2cyclictest2938116-21/usr/sbin/munin20:30:011
2834307991814,2cyclictest3199054-21systemd-run23:30:011
2834307991811,3cyclictest3302880-21runrttasks00:36:351
2834307991810,3cyclictest0-21swapper/121:20:021
283430099189,5cyclictest3276034-21kthreadcore00:21:080
283430099188,6cyclictest0-21swapper/023:36:110
283430099188,5cyclictest0-21swapper/023:00:360
283430099187,7cyclictest3101503-21ls22:25:000
283430099187,6cyclictest0-21swapper/000:01:100
2834300991815,2cyclictest3147605-21sh22:56:050
2834300991815,2cyclictest2976146-21tr21:01:060
2834300991815,2cyclictest2834295-21cyclictest23:21:070
2834300991815,2cyclictest0-21swapper/000:10:030
2649091181,2phc2sys0-21swapper/323:41:063
2649091180,3phc2sys0-21swapper/323:40:023
2649091180,2phc2sys0-21swapper/323:22:503
2649091180,2phc2sys0-21swapper/322:19:453
2649091180,2phc2sys0-21swapper/321:10:433
30066222170,2sleep20-21swapper/221:21:102
283431199171,8cyclictest0-21swapper/200:01:022
2834311991714,1cyclictest0-21swapper/223:39:112
2834311991714,1cyclictest0-21swapper/223:34:192
2834311991714,1cyclictest0-21swapper/223:06:062
2834311991714,1cyclictest0-21swapper/222:13:342
2834311991714,1cyclictest0-21swapper/221:40:012
2834311991714,1cyclictest0-21swapper/200:15:002
283430799179,3cyclictest0-21swapper/122:26:141
283430799178,3cyclictest3276034-21kthreadcore00:21:081
2834307991714,2cyclictest3827634-1atopacctd22:36:151
2834307991714,2cyclictest3824567-21rs:main1
2834307991714,2cyclictest3221384-21sh23:45:001
2834307991714,2cyclictest3137624-21grep22:46:151
2834307991714,2cyclictest3009008-21needreboot21:21:131
2834307991714,2cyclictest0-21swapper/123:40:011
2834307991714,2cyclictest0-21swapper/100:15:021
2834307991712,1cyclictest134050irq/121-eno121:51:191
2834307991712,1cyclictest134050irq/121-eno121:51:191
2834300991714,2cyclictest3168848-21cron23:10:000
2834300991714,2cyclictest2900700-21cut20:00:020
2834300991714,2cyclictest1290-21dbus-daemon22:35:010
2834300991713,3cyclictest3206413-21kworker/u16:0+nfsiod00:35:390
2834300991711,5cyclictest3005760-21kthreadcore21:21:100
2649091171,8phc2sys0-21swapper/322:26:013
2649091171,3phc2sys0-21swapper/320:51:033
2649091170,4phc2sys0-21swapper/300:23:273
2649091170,3phc2sys0-21swapper/323:53:283
283431199169,3cyclictest0-21swapper/222:51:142
283431199168,5cyclictest0-21swapper/220:21:022
2834311991614,1cyclictest0-21swapper/223:51:102
2834311991614,1cyclictest0-21swapper/223:50:022
2834311991614,1cyclictest0-21swapper/221:20:022
2834311991614,1cyclictest0-21swapper/220:30:012
2834311991613,1cyclictest0-21swapper/223:01:482
2834311991613,1cyclictest0-21swapper/222:06:062
2834311991613,1cyclictest0-21swapper/220:09:042
2834311991612,2cyclictest0-21swapper/222:04:142
2834311991612,2cyclictest0-21swapper/219:46:082
2834311991611,3cyclictest3282569-21chrt00:26:052
283430799169,3cyclictest3058348-21kthreadcore21:56:071
283430799169,3cyclictest0-21swapper/121:45:021
2834307991613,2cyclictest3851702-21mta-sts-daemon23:15:001
2834307991613,2cyclictest3834587-17auditd23:31:121
2834307991613,2cyclictest3236293-21sh23:55:021
2834307991613,2cyclictest3153887-21latency_hist23:00:001
2834307991613,2cyclictest2970513-21grep20:56:071
2834307991613,2cyclictest2919238-21munin-plugin-st20:15:011
2834307991613,2cyclictest2834295-21cyclictest21:36:141
2834307991613,2cyclictest1290-21dbus-daemon22:45:001
2834307991612,3cyclictest3283694-21kthreadcore00:26:091
2834307991612,3cyclictest3124116-21kworker/u16:3+nfsiod00:05:301
2834307991612,2cyclictest0-21swapper/119:35:011
2834307991611,4cyclictest2900660-21sort20:00:021
283430099165,6cyclictest0-21swapper/020:01:390
283430099162,2cyclictest134050irq/121-eno121:46:030
2834300991613,2cyclictest3197598-21vmstat23:26:170
2834300991613,2cyclictest3176458-21sh23:15:010
2834300991613,2cyclictest3109139-21latency_hist22:30:010
2834300991613,2cyclictest1296-21polkitd19:36:140
2834300991613,2cyclictest0-21swapper/021:31:150
2649091161,4phc2sys0-21swapper/323:46:033
2649091161,2phc2sys0-21swapper/320:56:083
2649091160,3phc2sys0-21swapper/321:30:543
2649091160,2phc2sys0-21swapper/322:41:403
2649091160,2phc2sys0-21swapper/322:07:533
2649091160,2phc2sys0-21swapper/321:52:593
2649091160,2phc2sys0-21swapper/321:52:593
283431199159,3cyclictest0-21swapper/222:46:012
2834311991513,1cyclictest0-21swapper/221:05:002
2834311991512,1cyclictest0-21swapper/223:56:152
2834311991512,1cyclictest0-21swapper/223:26:102
2834311991512,1cyclictest0-21swapper/222:56:092
2834311991512,1cyclictest0-21swapper/222:41:042
2834311991512,1cyclictest0-21swapper/222:34:482
2834311991512,1cyclictest0-21swapper/221:46:102
2834311991512,1cyclictest0-21swapper/221:10:122
2834311991512,1cyclictest0-21swapper/220:51:462
2834311991512,1cyclictest0-21swapper/220:20:012
2834311991512,1cyclictest0-21swapper/219:40:002
2834311991512,1cyclictest0-21swapper/219:26:042
2834311991512,1cyclictest0-21swapper/219:23:582
2834311991510,3cyclictest0-21swapper/222:26:092
283430799158,6cyclictest3851705-21mta-sts-daemon21:34:351
283430799158,3cyclictest2957223-21tail20:46:021
2834307991513,1cyclictest2956783-21cut20:45:011
2834307991512,2cyclictest3851703-21mta-sts-daemon22:50:251
2834307991512,2cyclictest3827634-1atopacctd00:31:021
2834307991512,2cyclictest3160143-21grep23:01:151
2834307991512,2cyclictest3095969-21kthreadcore22:21:091
2834307991512,2cyclictest2992035-21kthreadcore21:11:111
2834307991512,2cyclictest2834295-21cyclictest20:06:041
2834307991512,2cyclictest1296-21polkitd20:25:001
2834307991512,2cyclictest0-21swapper/123:25:001
2834307991511,3cyclictest3851704-21mta-sts-daemon21:29:181
2834307991510,4cyclictest3851703-21mta-sts-daemon22:10:151
2834307991510,4cyclictest3067817-21ssh22:01:141
283430099159,4cyclictest1290-21dbus-daemon20:55:000
283430099158,6cyclictest0-21swapper/021:10:000
283430099156,7cyclictest2973061-21tr20:56:090
283430099156,4cyclictest0-21swapper/023:45:450
283430099156,2cyclictest0-21swapper/020:26:040
283430099151,9cyclictest3027004-21apt-get21:36:020
2834300991513,1cyclictest2908443-21kthreadcore20:06:090
2834300991512,2cyclictest3851702-21mta-sts-daemon20:36:160
2834300991512,2cyclictest3824565-21in:imuxsock22:00:010
2834300991512,2cyclictest3086539-21idleruntime-cro22:15:000
2834300991512,2cyclictest3073526-21kthreadcore22:06:100
2834300991512,2cyclictest3034788-21cpuspeed_turbos21:41:040
2834300991512,2cyclictest2931749-21systemd20:25:000
2834300991512,2cyclictest2868948-21systemd-run19:35:020
2834300991512,2cyclictest2840656-21sh19:15:000
2834300991512,2cyclictest2834295-21cyclictest19:20:020
2834300991512,2cyclictest1996-21runrttasks00:29:580
2834300991512,2cyclictest0-21swapper/020:15:010
2834300991511,2cyclictest0-21swapper/019:30:010
283430099150,11cyclictest3199256-21ssh23:30:300
2649091150,3phc2sys0-21swapper/321:38:283
2834311991412,1cyclictest0-21swapper/220:31:102
2834311991411,1cyclictest0-21swapper/221:55:452
2834311991411,1cyclictest0-21swapper/221:51:092
2834311991411,1cyclictest0-21swapper/221:51:092
2834311991411,1cyclictest0-21swapper/221:26:112
2834311991410,2cyclictest0-21swapper/220:46:112
2834311991410,2cyclictest0-21swapper/220:36:082
283431199140,12cyclictest0-21swapper/221:41:042
283430799149,4cyclictest2871416-21kthreadcore19:36:091
283430799149,4cyclictest2717565-21GUsbEventThread19:15:181
283430799145,8cyclictest2967737-21tr20:51:111
283430799145,8cyclictest134050irq/121-eno119:11:021
2834307991411,2cyclictest3851703-21mta-sts-daemon19:25:011
2834307991411,2cyclictest3834332-21rtkit-daemon20:18:011
2834307991411,2cyclictest3232611-21kthreadcore23:51:101
2834307991411,2cyclictest2982612-21fschecks_count21:06:061
2834307991411,2cyclictest2938511-21aten_repower_vo20:31:031
2834307991411,2cyclictest2890794-21kthreadcore19:51:091
2834307991411,2cyclictest0-21swapper/119:10:011
2834300991411,2cyclictest3851705-21mta-sts-daemon22:41:070
2834300991411,2cyclictest3069759-21mailstats22:01:180
2834300991411,2cyclictest2953740-21kthreadcore20:41:090
2834300991411,2cyclictest1296-21polkitd20:50:010
2834300991410,3cyclictest2890780-21kthreadcore19:51:090
2649091140,4phc2sys0-21swapper/319:15:033
2649091140,4phc2sys0-21swapper/300:26:063
2649091140,3phc2sys0-21swapper/319:21:023
2649091140,2phc2sys0-21swapper/323:19:343
2649091140,2phc2sys0-21swapper/323:01:243
283431199139,2cyclictest0-21swapper/219:31:092
2834311991311,1cyclictest0-21swapper/223:45:002
2834311991311,1cyclictest0-21swapper/221:34:102
2834311991311,1cyclictest0-21swapper/221:05:162
2834311991311,1cyclictest0-21swapper/200:06:082
2834311991310,1cyclictest0-21swapper/220:41:082
2834311991310,1cyclictest0-21swapper/220:11:122
2834307991310,2cyclictest2949658-21proc_pri20:36:161
283430099139,3cyclictest2939774-21kthreadcore20:31:080
283430099138,4cyclictest3851704-21mta-sts-daemon19:23:280
283430099130,8cyclictest3176370-21latency_hist23:15:030
2649091131,3phc2sys0-21swapper/320:37:403
2649091130,3phc2sys0-21swapper/320:21:023
2649091130,2phc2sys0-21swapper/322:52:153
2649091130,2phc2sys0-21swapper/322:45:183
2649091130,2phc2sys0-21swapper/322:30:573
2649091130,2phc2sys0-21swapper/319:44:553
2649091130,1phc2sys0-21swapper/320:43:223
2649091130,1phc2sys0-21swapper/320:19:573
2649091130,1phc2sys0-21swapper/319:25:183
283431199129,1cyclictest0-21swapper/219:51:092
2834311991210,1cyclictest0-21swapper/219:45:022
283430799129,2cyclictest2977956-21kthreadcore21:01:111
2649091129,1phc2sys0-21swapper/320:11:583
2649091124,3phc2sys0-21swapper/323:56:033
2649091120,3phc2sys0-21swapper/319:06:033
2649091120,2phc2sys0-21swapper/321:49:113
2649091120,2phc2sys0-21swapper/321:20:293
2649091120,2phc2sys0-21swapper/320:29:393
2649091120,2phc2sys0-21swapper/319:15:013
283431199119,1cyclictest0-21swapper/219:10:012
2649091112,2phc2sys0-21swapper/323:08:233
2649091111,4phc2sys0-21swapper/323:31:033
2649091111,4phc2sys0-21swapper/320:46:013
2649091111,3phc2sys0-21swapper/321:01:043
2649091111,2phc2sys0-21swapper/322:13:113
2649091111,2phc2sys0-21swapper/319:36:043
2649091111,2phc2sys0-21swapper/300:01:023
2649091110,2phc2sys0-21swapper/322:35:043
2649091110,2phc2sys0-21swapper/321:56:003
2649091110,2phc2sys0-21swapper/320:06:063
2649091110,1phc2sys0-21swapper/322:00:133
383433398100,2rtkit-daemon3851703-21mta-sts-daemon19:05:020
2649091104,2phc2sys0-21swapper/300:18:133
2649091101,2phc2sys0-21swapper/319:31:043
2649091100,2phc2sys0-21swapper/323:13:413
2649091100,2phc2sys0-21swapper/322:55:483
2649091100,2phc2sys0-21swapper/321:41:093
2649091100,2phc2sys0-21swapper/321:16:043
2649091100,2phc2sys0-21swapper/319:46:063
2649091100,2phc2sys0-21swapper/300:31:163
2649091100,2phc2sys0-21swapper/300:10:163
2649091100,2phc2sys0-21swapper/300:05:113
2649091100,1phc2sys0-21swapper/320:03:253
264909191,2phc2sys0-21swapper/322:20:173
264909191,2phc2sys0-21swapper/319:51:113
264909190,4phc2sys0-21swapper/319:56:013
264909190,3phc2sys0-21swapper/321:05:313
264909190,2phc2sys0-21swapper/323:26:153
264909190,2phc2sys0-21swapper/321:26:183
264909190,2phc2sys0-21swapper/320:31:043
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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