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2026-05-11 - 11:30
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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
Characteristics of all highest latencies:
System rackeslot2.osadl.org (updated Mon May 11, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
320691321590,2sleep30-21swapper/300:30:203
321953921170,2sleep30-21swapper/300:40:023
31755742950,2sleep30-21swapper/300:10:203
29062322880,2sleep30-21swapper/321:11:353
31125362690,1sleep13112535-21ssh23:29:581
31125362690,1sleep13112535-21ssh23:29:581
31888372380,1sleep20-21swapper/200:20:012
30531622360,2sleep20-21swapper/222:50:182
28206642300,1sleep10-21swapper/120:05:211
2747080992817,7cyclictest3200731-21kthreadcore00:25:220
30429342260,0sleep13042933-21ssh22:40:471
2747080992514,6cyclictest2918910-21kthreadcore21:20:210
2747081992421,2cyclictest2907487-21grep21:15:011
2747082992219,1cyclictest0-21swapper/222:15:002
2747082992219,1cyclictest0-21swapper/200:30:012
2747080992219,2cyclictest3028935-21apt-key22:35:010
2747080992219,2cyclictest2968163-21awk21:55:000
2747080992219,2cyclictest2899885-21sh21:10:010
2747082992118,1cyclictest0-21swapper/221:00:002
2747082992118,1cyclictest0-21swapper/221:00:002
2747081992113,3cyclictest3193676-21kthreadcore00:20:211
2747080992118,2cyclictest3219252-21basename00:40:000
2747080992118,2cyclictest3097399-21sendmail23:20:000
2747080992110,7cyclictest3130314-21kthreadcore23:40:220
383433398200,3rtkit-daemon3851703-21mta-sts-daemon22:47:160
2747082992017,1cyclictest0-21swapper/223:20:222
274708099208,7cyclictest3851702-21mta-sts-daemon22:28:290
2747080992011,5cyclictest0-21swapper/023:50:000
2747080992010,6cyclictest2945288-21systemd-run21:40:000
2747080992010,5cyclictest0-21swapper/021:34:280
31506202190,2sleep30-21swapper/323:55:013
2747082991917,1cyclictest0-21swapper/220:20:012
2747082991916,1cyclictest0-21swapper/222:33:202
274708199198,1cyclictest491rcuog/222:20:261
2747081991917,1cyclictest0-21swapper/123:00:011
2747081991916,2cyclictest2960411-21base6421:50:011
2747081991916,2cyclictest2945260-21latency_hist21:40:001
2747081991915,3cyclictest1-21systemd22:00:011
2747081991912,3cyclictest3827634-1atopacctd21:35:011
2747081991910,5cyclictest3851705-21mta-sts-daemon23:10:311
2747080991916,2cyclictest1290-21dbus-daemon21:50:010
274708099190,13cyclictest3083967-21irqstats23:10:190
2649091191,2phc2sys0-21swapper/320:50:163
2747082991815,1cyclictest0-21swapper/222:40:202
274708199188,3cyclictest501rcuop/221:41:491
274708199187,4cyclictest0-21swapper/122:30:161
2747081991815,2cyclictest3827634-1atopacctd22:17:311
2747081991815,2cyclictest3182391-21ps00:15:191
2747081991815,2cyclictest3124775-21cut23:35:231
2747081991815,2cyclictest2998801-21/usr/sbin/munin22:15:011
2747081991815,2cyclictest2961717-21sed21:50:181
2747081991815,2cyclictest2838313-21gltestperf20:20:161
2747081991815,2cyclictest2786933-21cron19:40:001
2747081991815,2cyclictest1996-21runrttasks21:24:341
2747081991812,2cyclictest134050irq/121-eno100:10:141
2747081991811,6cyclictest3851702-21mta-sts-daemon20:30:261
274708099187,6cyclictest0-21swapper/023:05:210
2747080991815,2cyclictest2811376-21pmu-power19:55:250
2747080991815,2cyclictest0-21swapper/022:10:010
2747080991812,5cyclictest2976307-21aten_repower_po22:00:150
274708099181,10cyclictest1290-21dbus-daemon20:35:020
2747080991810,7cyclictest0-21swapper/022:15:000
2747080991810,4cyclictest3851702-21mta-sts-daemon00:21:400
2649091181,6phc2sys0-21swapper/322:10:133
2649091180,4phc2sys0-21swapper/323:20:233
274708299172,10cyclictest0-21swapper/219:45:132
2747082991714,1cyclictest0-21swapper/221:20:002
2747082991714,1cyclictest0-21swapper/200:10:002
274708199178,3cyclictest501rcuop/223:30:081
274708199178,3cyclictest501rcuop/222:46:111
274708199178,3cyclictest501rcuop/219:51:041
274708199178,3cyclictest501rcuop/200:07:441
274708199178,1cyclictest601rcuop/300:36:501
274708199175,3cyclictest191rcu_preempt21:00:011
274708199175,3cyclictest191rcu_preempt21:00:011
274708199174,4cyclictest2849892-21kworker/u16:0+xprtiod22:09:321
2747081991714,2cyclictest3021444-21latency_hist22:30:011
2747081991714,2cyclictest2910107-21kthreadcore21:15:221
2747081991714,2cyclictest2849804-21latency_hist20:30:001
2747081991714,2cyclictest2747078-21cyclictest00:25:221
2747081991714,2cyclictest1326-21systemd-logind23:20:001
2747081991714,2cyclictest0-21swapper/121:10:011
2747081991714,2cyclictest0-21swapper/100:35:011
2747081991710,6cyclictest3851705-21mta-sts-daemon19:20:241
274708099179,7cyclictest0-21swapper/022:55:130
274708099177,5cyclictest0-21swapper/023:39:390
274708099177,5cyclictest0-21swapper/000:30:130
274708099177,5cyclictest0-21swapper/000:10:140
274708099172,9cyclictest3145049-21cut23:50:210
2747080991714,2cyclictest3097802-21aten_repower_cu23:20:140
2747080991714,2cyclictest2910747-21kthreadcore21:15:240
2747080991714,2cyclictest2907659-21cut21:15:020
2747080991714,2cyclictest0-21swapper/022:55:010
274708099171,12cyclictest0-21swapper/022:24:140
2649091170,2phc2sys0-21swapper/322:34:373
2649091170,2phc2sys0-21swapper/322:26:363
2649091170,14phc2sys0-21swapper/322:49:163
274708299161,6cyclictest0-21swapper/223:10:012
2747082991614,1cyclictest0-21swapper/222:40:002
2747082991614,1cyclictest0-21swapper/222:20:002
2747082991613,1cyclictest0-21swapper/223:35:192
2747082991613,1cyclictest0-21swapper/222:55:262
2747082991613,1cyclictest0-21swapper/221:30:182
2747082991613,1cyclictest0-21swapper/221:25:002
2747082991613,1cyclictest0-21swapper/219:30:152
2747082991613,1cyclictest0-21swapper/200:25:002
2747082991613,1cyclictest0-21swapper/200:05:002
2747082991612,2cyclictest0-21swapper/223:25:132
2747082991612,2cyclictest0-21swapper/223:25:122
2747082991611,1cyclictest0-21swapper/223:15:142
274708199169,6cyclictest3851702-21mta-sts-daemon19:10:261
274708199168,3cyclictest501rcuop/222:36:251
274708199167,3cyclictest501rcuop/223:21:061
2747081991613,2cyclictest1290-21dbus-daemon19:35:011
2747081991613,2cyclictest0-21swapper/123:05:021
2747081991613,2cyclictest0-21swapper/122:05:011
2747081991611,4cyclictest3834332-21rtkit-daemon20:46:391
2747081991611,4cyclictest3834332-21rtkit-daemon20:19:481
274708199160,3cyclictest2929600-21ssh21:28:391
274708099168,6cyclictest0-21swapper/021:25:220
274708099168,2cyclictest0-21swapper/023:01:160
274708099167,5cyclictest2799952-21aten_repower_vo19:50:130
274708099166,6cyclictest0-21swapper/022:00:020
274708099166,5cyclictest0-21swapper/022:40:110
274708099163,2cyclictest171ktimers/022:39:560
2747080991613,2cyclictest2768321-21latency_hist19:25:000
2747080991613,2cyclictest0-21swapper/020:40:010
2747080991613,2cyclictest0-21swapper/020:25:000
2747080991612,3cyclictest2754258-21kthreadcore19:15:020
2747080991611,2cyclictest3851705-21mta-sts-daemon23:31:590
2747080991610,5cyclictest3851705-21mta-sts-daemon22:17:530
2649091161,4phc2sys0-21swapper/300:02:283
2649091160,2phc2sys0-21swapper/323:55:253
2649091160,2phc2sys0-21swapper/323:45:283
2649091160,2phc2sys0-21swapper/323:33:383
2649091160,2phc2sys0-21swapper/323:02:513
2649091160,1phc2sys0-21swapper/321:43:313
274708299158,4cyclictest0-21swapper/200:30:132
2747082991513,1cyclictest0-21swapper/223:45:012
2747082991513,1cyclictest0-21swapper/221:55:022
2747082991513,1cyclictest0-21swapper/219:15:162
2747082991512,2cyclictest0-21swapper/221:55:262
2747082991512,1cyclictest0-21swapper/223:00:232
2747082991512,1cyclictest0-21swapper/222:45:192
2747082991512,1cyclictest0-21swapper/222:25:012
2747082991512,1cyclictest0-21swapper/221:35:252
2747082991512,1cyclictest0-21swapper/221:10:122
2747082991512,1cyclictest0-21swapper/221:10:012
2747082991512,1cyclictest0-21swapper/221:05:002
2747082991512,1cyclictest0-21swapper/220:35:012
2747082991512,1cyclictest0-21swapper/220:10:202
2747082991512,1cyclictest0-21swapper/219:55:172
2747082991512,1cyclictest0-21swapper/200:40:012
274708199159,5cyclictest3851702-21mta-sts-daemon20:35:201
274708199156,3cyclictest501rcuop/220:50:551
274708199156,3cyclictest501rcuop/220:12:441
274708199155,3cyclictest501rcuop/219:15:451
2747081991512,2cyclictest3163671-21grep00:00:271
2747081991512,2cyclictest2768549-21aten_repower_cu19:25:151
2747081991511,3cyclictest351ktimers/121:00:131
2747081991511,3cyclictest3054883-21kthreadcore22:50:211
274708099158,6cyclictest0-21swapper/023:55:240
2747080991512,2cyclictest3851702-21mta-sts-daemon00:18:280
2747080991512,2cyclictest3112665-21systemctl23:30:010
2747080991512,2cyclictest3112665-21systemctl23:30:010
2747080991512,2cyclictest2946309-21fschecks_time21:40:170
2747080991512,2cyclictest2884286-21kthreadcore20:55:200
2747080991512,2cyclictest2884286-21kthreadcore20:55:200
2747080991512,2cyclictest2826385-21kthreadcore20:10:190
2747080991512,2cyclictest0-21swapper/000:10:000
274708099151,13cyclictest0-21swapper/019:25:160
2747080991510,4cyclictest2874013-21ptp4l20:45:250
274708099150,9cyclictest2822678-21tr20:05:220
2649091150,2phc2sys0-21swapper/322:22:123
2747082991412,1cyclictest0-21swapper/223:30:242
2747082991412,1cyclictest0-21swapper/222:25:222
2747082991412,1cyclictest0-21swapper/221:40:212
2747082991412,1cyclictest0-21swapper/219:15:012
2747082991411,1cyclictest0-21swapper/223:54:362
2747082991411,1cyclictest0-21swapper/222:05:392
2747082991411,1cyclictest0-21swapper/222:00:212
2747082991411,1cyclictest0-21swapper/221:29:162
2747082991411,1cyclictest0-21swapper/220:40:212
2747082991411,1cyclictest0-21swapper/220:35:262
2747082991411,1cyclictest0-21swapper/219:50:192
2747082991411,1cyclictest0-21swapper/200:10:202
2747082991410,2cyclictest0-21swapper/221:45:512
274708299140,12cyclictest0-21swapper/223:13:312
274708199146,3cyclictest501rcuop/220:04:141
274708199145,7cyclictest3824567-21rs:main1
2747081991412,1cyclictest3136571-21if_err_enp1s023:45:201
2747081991411,2cyclictest3851704-21mta-sts-daemon23:44:041
2747081991411,2cyclictest3153768-21kthreadcore23:55:201
2747081991411,2cyclictest2747078-21cyclictest19:40:181
2747081991411,2cyclictest0-21swapper/119:10:011
2747081991410,3cyclictest3145178-21kthreadcore23:50:211
2747081991410,3cyclictest2808257-21kthreadcore19:55:211
2747081991410,3cyclictest2795905-21kthreadcore19:45:201
2747080991411,2cyclictest3851704-21mta-sts-daemon20:18:370
2747080991411,2cyclictest3159729-21kthreadcore00:00:200
2747080991411,2cyclictest2845139-21kernelversion20:25:200
2747080991411,2cyclictest2798454-21needreboot19:45:230
2747080991411,2cyclictest2793424-21systemd-run19:45:010
2747080991411,2cyclictest2779737-21head19:30:230
2747080991411,2cyclictest2768277-21kworker/u16:2-ext4-rsv-conversion20:55:000
2747080991411,2cyclictest2753286-21latency_hist19:15:020
2747080991411,2cyclictest0-21swapper/020:45:010
2747080991410,3cyclictest2783427-21kthreadcore19:35:210
2649091144,3phc2sys0-21swapper/300:07:533
2649091141,6phc2sys0-21swapper/322:00:143
2649091141,2phc2sys0-21swapper/320:35:013
2649091140,2phc2sys0-21swapper/323:14:353
2649091140,2phc2sys0-21swapper/321:35:583
2649091140,2phc2sys0-21swapper/320:18:293
2649091140,2phc2sys0-21swapper/319:10:293
2649091140,1phc2sys0-21swapper/321:52:293
274708299139,2cyclictest0-21swapper/223:55:192
274708299136,4cyclictest0-21swapper/219:35:142
274708299131,5cyclictest0-21swapper/223:50:012
2747082991311,1cyclictest0-21swapper/220:05:192
2747082991310,1cyclictest0-21swapper/220:20:262
2747082991310,1cyclictest0-21swapper/220:00:182
2747082991310,1cyclictest0-21swapper/219:24:112
2747081991310,2cyclictest3851702-21mta-sts-daemon20:40:141
2747080991310,2cyclictest0-21swapper/021:05:000
2747080991310,2cyclictest0-21swapper/020:00:150
2649091138,2phc2sys0-21swapper/323:44:133
2649091131,6phc2sys0-21swapper/321:00:133
2649091131,3phc2sys0-21swapper/322:15:263
2649091130,2phc2sys0-21swapper/322:07:593
2649091130,1phc2sys0-21swapper/320:39:263
2649091130,1phc2sys0-21swapper/300:21:323
274708299129,1cyclictest0-21swapper/220:50:242
274708299129,1cyclictest0-21swapper/220:45:222
274708299127,2cyclictest0-21swapper/219:10:012
2747082991210,1cyclictest0-21swapper/220:25:232
2747082991210,1cyclictest0-21swapper/219:25:172
2649091121,5phc2sys0-21swapper/321:30:143
2649091121,2phc2sys0-21swapper/319:55:143
2649091120,5phc2sys0-21swapper/319:25:023
2649091120,2phc2sys0-21swapper/323:09:453
2649091120,2phc2sys0-21swapper/319:33:133
2649091120,2phc2sys0-21swapper/319:19:063
2649091120,1phc2sys0-21swapper/321:22:263
2649091120,1phc2sys0-21swapper/320:45:513
274708299119,1cyclictest0-21swapper/219:40:212
274708099115,4cyclictest1290-21dbus-daemon19:10:000
2649091111,2phc2sys0-21swapper/323:35:143
2649091110,3phc2sys0-21swapper/321:55:143
2649091110,2phc2sys0-21swapper/323:15:143
2649091110,1phc2sys0-21swapper/322:40:233
2649091101,4phc2sys0-21swapper/321:00:013
2649091101,4phc2sys0-21swapper/321:00:013
2649091101,4phc2sys0-21swapper/320:40:133
2649091101,4phc2sys0-21swapper/300:15:143
2649091101,3phc2sys0-21swapper/322:36:463
2649091101,3phc2sys0-21swapper/320:00:143
2649091101,2phc2sys0-21swapper/321:49:213
2649091101,2phc2sys0-21swapper/319:54:063
2649091101,2phc2sys0-21swapper/319:45:203
2649091100,2phc2sys0-21swapper/323:28:053
2649091100,2phc2sys0-21swapper/323:28:053
2649091100,2phc2sys0-21swapper/322:59:113
2649091100,2phc2sys0-21swapper/322:51:533
2649091100,2phc2sys0-21swapper/321:17:493
2649091100,2phc2sys0-21swapper/321:05:153
2649091100,2phc2sys0-21swapper/320:05:203
2649091100,2phc2sys0-21swapper/319:35:143
2649091100,2phc2sys0-21swapper/319:30:013
2649091100,2phc2sys0-21swapper/300:28:343
2649091100,1phc2sys0-21swapper/320:26:563
264909191,4phc2sys0-21swapper/319:05:143
264909190,2phc2sys0-21swapper/321:27:113
264909190,2phc2sys0-21swapper/320:10:133
264909181,3phc2sys0-21swapper/319:40:133
264909180,2phc2sys0-21swapper/320:20:033
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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