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2025-06-13 - 18:02
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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 rackcslot4.osadl.org (updated Fri Jun 13, 2025 12:44:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
35073602272190,28sleep00-21swapper/007:06:540
35074832260220,26sleep10-21swapper/107:08:141
125899690,5rtkit-daemon1257-21rtkit-daemon10:40:090
36788562610,3sleep13678857-21ssh11:45:251
3507749995813,11cyclictest3549563-21cnf-update-db08:50:020
125899570,4rtkit-daemon1257-21rtkit-daemon09:45:050
350774999569,14cyclictest3516558-21chrt07:30:000
3507749995613,13cyclictest3512815-21apt-get07:20:140
3507749995612,14cyclictest3536612-21python308:20:010
3507749995612,12cyclictest3557334-21diskmemload11:25:000
3507749995611,11cyclictest3512187-21munin-run07:20:000
125899560,4rtkit-daemon1257-21rtkit-daemon10:30:131
3507749995514,12cyclictest3557334-21diskmemload12:10:010
3507749995513,22cyclictest3573328-21apt-get09:30:130
3507749995512,11cyclictest3584758-21taskset09:45:000
3507749995510,13cyclictest3650536-21cat11:10:000
3507749995510,13cyclictest3569319-21cat09:25:010
3507749995510,11cyclictest3565514-21ls09:20:010
3507749995412,10cyclictest3703694-21munin-run12:20:000
3507749995410,10cyclictest3646716-21systemd-run11:05:010
3507749995315,11cyclictest3608640-21apt-get10:15:140
3507749995313,11cyclictest3557334-21diskmemload11:45:240
3507749995311,12cyclictest3530382-21latency_hist08:05:010
3507749995311,11cyclictest3534749-21latency_hist08:15:010
3507749995310,13cyclictest3542984-21grep08:35:000
350774999529,11cyclictest3635325-21latency_hist10:50:010
350774999529,11cyclictest3553518-21cat09:00:010
350774999528,13cyclictest0-21swapper/011:15:010
3507749995212,13cyclictest3627680-21sort10:40:000
3507749995211,14cyclictest3557340-21latency_hist09:10:000
3507749995211,11cyclictest3557334-21diskmemload10:55:150
3507749995210,14cyclictest3540989-21cat08:30:010
3507749995210,11cyclictest3623955-21sed10:35:010
350774999519,12cyclictest3522553-21latency_hist07:45:010
350774999519,11cyclictest3573173-21latency_hist09:30:010
3507749995114,13cyclictest3613237-21lsb_release10:20:210
3507749995113,11cyclictest3600654-21cnf-update-db10:05:020
3507749995112,11cyclictest3651613-21ntp_states11:10:240
3507749995111,14cyclictest3558727-21/usr/sbin/munin09:10:250
3507749995110,11cyclictest3677548-21cat11:45:000
3507749995110,11cyclictest3524564-21grep07:50:020
125899510,4rtkit-daemon1257-21rtkit-daemon11:57:270
3507749995013,14cyclictest3714702-21apt-get12:35:140
3507749995013,12cyclictest3658798-40apt-check11:20:180
3507749995012,10cyclictest3536611-21python308:20:010
3507749995011,14cyclictest3520663-21cut07:40:010
3507749995011,12cyclictest3508876-21mailstats07:10:230
3507749995011,11cyclictest3555465-21cat09:05:010
3507749995010,14cyclictest3684824-21cat11:55:000
3507749995010,10cyclictest3639126-21date10:55:000
350774999499,11cyclictest3547328-21date08:45:010
3507749994917,11cyclictest3557334-21diskmemload10:00:150
3507749994910,12cyclictest3548363-21tr08:45:250
3507749994910,11cyclictest3619999-21systemctl10:30:000
3507749994910,11cyclictest3528403-21latency_hist08:00:000
125899490,3rtkit-daemon0-21swapper/007:42:341
3507749994812,13cyclictest3579607-21sshd09:37:190
3507749994811,8cyclictest3545010-21cat08:40:010
3507749994811,12cyclictest3704330-21tune2fs12:20:190
3507749994810,11cyclictest3714480-21sed12:35:000
3507749994810,11cyclictest3525565-21mailstats07:50:230
125899480,3rtkit-daemon0-21swapper/011:50:271
3507749994714,12cyclictest3594867-21ssh09:56:380
3507749994713,13cyclictest3691421-21ssh12:03:110
3507749994712,9cyclictest672-21dbus-daemon12:10:020
3507749994712,12cyclictest3666047-21apt-get11:30:040
3507749994711,13cyclictest3604796-21apt-get10:10:140
3507749994710,12cyclictest3518605-21date07:35:010
3507749994710,10cyclictest3592729-21cat09:55:000
125899470,4rtkit-daemon1257-21rtkit-daemon08:37:431
125899470,4rtkit-daemon1257-21rtkit-daemon08:25:461
125899470,3rtkit-daemon0-21swapper/112:10:211
350774999469,9cyclictest3673821-21latency_hist11:40:000
3507749994510,13cyclictest3531222-21ntpq08:05:210
37041712440,4sleep10-21swapper/112:20:161
3507749994411,10cyclictest3707509-21date12:25:010
125899440,4rtkit-daemon1257-21rtkit-daemon08:04:331
125899410,4rtkit-daemon1257-21rtkit-daemon10:28:141
3507754994019,4cyclictest26-21ksoftirqd/111:30:011
3507754993823,3cyclictest3703355-21ssh12:19:111
125899380,5rtkit-daemon0-21swapper/011:32:091
35421342360,11sleep126-21ksoftirqd/108:30:251
125899350,4rtkit-daemon1257-21rtkit-daemon08:10:581
125899350,3rtkit-daemon0-21swapper/009:25:481
350775499349,10cyclictest26-21ksoftirqd/108:50:021
125899340,4rtkit-daemon1257-21rtkit-daemon08:16:401
125899340,4rtkit-daemon1257-21rtkit-daemon08:05:531
125899340,3rtkit-daemon0-21swapper/110:45:501
125899340,3rtkit-daemon0-21swapper/011:01:221
350775499336,4cyclictest26-21ksoftirqd/112:05:001
3507754993316,4cyclictest26-21ksoftirqd/112:35:001
125899330,4rtkit-daemon3524010-21chrt07:45:491
125899330,4rtkit-daemon1257-21rtkit-daemon10:22:241
125899330,3rtkit-daemon0-21swapper/007:20:561
125899330,3rtkit-daemon0-21swapper/007:16:171
3507754993217,4cyclictest26-21ksoftirqd/111:40:001
125899320,3rtkit-daemon0-21swapper/009:18:251
125899320,3rtkit-daemon0-21swapper/009:10:281
350775499319,9cyclictest26-21ksoftirqd/109:40:181
3507754993123,6cyclictest26-21ksoftirqd/108:50:001
3507754993119,6cyclictest3658798-40apt-check11:20:151
3507754993112,4cyclictest26-21ksoftirqd/110:55:011
125899310,4rtkit-daemon1257-21rtkit-daemon10:10:571
125899310,3rtkit-daemon0-21swapper/011:18:581
350775499308,10cyclictest26-21ksoftirqd/108:20:011
3507754993015,5cyclictest26-21ksoftirqd/107:40:001
3507754993011,5cyclictest26-21ksoftirqd/110:55:171
125899300,4rtkit-daemon1257-21rtkit-daemon07:32:121
125899300,3rtkit-daemon0-21swapper/011:59:291
125899300,3rtkit-daemon0-21swapper/007:14:311
350775499294,4cyclictest26-21ksoftirqd/112:25:261
3507754992914,3cyclictest26-21ksoftirqd/111:10:001
3507754992914,3cyclictest26-21ksoftirqd/107:25:141
3507754992912,4cyclictest26-21ksoftirqd/110:35:201
3507754992911,4cyclictest26-21ksoftirqd/109:40:011
3507754992911,4cyclictest26-21ksoftirqd/107:50:131
3507754992911,2cyclictest141rcu_preempt10:40:151
3507754992910,4cyclictest26-21ksoftirqd/109:45:141
350775499288,4cyclictest26-21ksoftirqd/110:15:221
350775499287,10cyclictest26-21ksoftirqd/109:30:131
350775499285,9cyclictest26-21ksoftirqd/110:00:131
350775499285,10cyclictest26-21ksoftirqd/112:10:011
350775499284,16cyclictest26-21ksoftirqd/111:40:241
3507754992813,3cyclictest26-21ksoftirqd/108:45:011
3507754992812,4cyclictest26-21ksoftirqd/109:55:011
125899280,3rtkit-daemon0-21swapper/009:07:031
350775499277,4cyclictest26-21ksoftirqd/109:55:251
3507754992712,3cyclictest26-21ksoftirqd/110:10:011
350775499269,4cyclictest26-21ksoftirqd/112:35:501
350775499260,8cyclictest3557334-21diskmemload09:20:131
350775499259,2cyclictest141rcu_preempt11:10:151
350775499254,10cyclictest26-21ksoftirqd/109:00:161
350775499244,10cyclictest26-21ksoftirqd/109:00:011
350775499240,6cyclictest0-21swapper/107:56:581
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*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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