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2026-08-09 - 14:44
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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 Sun Aug 09, 2026 00:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2539228993321,7cyclictest759-1atopacctd22:05:040
2539233992926,2cyclictest0-21swapper/121:00:011
2539228992724,2cyclictest664-21dbus-daemon21:55:010
2539228992711,6cyclictest0-21swapper/023:25:350
2539228992521,3cyclictest2772880-21tail22:05:360
2539228992521,3cyclictest2772880-21tail22:05:360
2539228992514,5cyclictest759-1atopacctd00:20:370
2539228992512,6cyclictest0-21swapper/021:50:020
2539228992511,5cyclictest2726236-21if_eno121:35:350
2539228992511,5cyclictest2548363-21cstates19:15:310
2539228992420,3cyclictest2681485-21apt-get21:05:000
2539228992411,5cyclictest0-21swapper/022:35:010
2539233992321,1cyclictest2843679-21ssh22:55:021
2539228992314,5cyclictest2953440-21runrttasks00:07:270
253922899229,6cyclictest0-21swapper/023:00:340
253922899229,5cyclictest2988058-21kthreadcore00:30:370
2539228992213,5cyclictest0-21swapper/021:10:010
253922899221,16cyclictest2657181-21/usr/sbin/munin20:45:340
2539228992211,6cyclictest0-21swapper/022:25:290
1157598220,3rtkit-daemon1300-21mta-sts-daemon19:30:540
2539235992119,1cyclictest0-21swapper/200:15:002
2539235992118,1cyclictest0-21swapper/221:35:012
2539233992118,2cyclictest0-21swapper/121:55:021
2539233992115,2cyclictest69250irq/121-eno121:35:381
253922899217,6cyclictest0-21swapper/023:19:300
253922899214,8cyclictest2833086-21tr22:45:370
2539228992118,2cyclictest2675368-21systemd21:00:010
2539235992017,1cyclictest0-21swapper/223:35:022
2539235992017,1cyclictest0-21swapper/223:00:012
2539235992017,1cyclictest0-21swapper/222:20:012
253923399205,9cyclictest2932509-21sh23:55:071
2539233992015,3cyclictest0-21swapper/122:05:021
253922899202,9cyclictest2864021-21grep23:05:430
2539228992017,2cyclictest2828831-21cut22:45:010
2539228992011,1cyclictest491rcuog/222:52:440
2539233991916,2cyclictest2878746-21tail23:15:421
2539233991916,2cyclictest2644778-21latency_hist20:35:011
2539233991916,2cyclictest2590133-21latency_hist19:50:011
2539233991916,2cyclictest2546650-21kthreadcore19:15:031
2539233991910,4cyclictest2565122-21mailstats19:25:421
253922899199,5cyclictest0-21swapper/000:15:120
253922899198,6cyclictest0-21swapper/021:40:280
253922899196,6cyclictest0-21swapper/023:44:340
253922899196,6cyclictest0-21swapper/020:53:050
253922899195,6cyclictest0-21swapper/022:35:160
2539228991916,2cyclictest2724958-21apt-key21:35:010
253922899191,10cyclictest0-21swapper/023:33:100
3240591180,2phc2sys0-21swapper/300:38:063
2539235991815,1cyclictest0-21swapper/223:20:312
2539235991815,1cyclictest0-21swapper/222:55:012
2539235991815,1cyclictest0-21swapper/221:50:012
253923399189,5cyclictest2650760-21cron20:40:011
253923399189,3cyclictest2615335-21tune2fs20:10:331
253923399183,5cyclictest2581147-21kthreadcore19:40:381
253923399183,10cyclictest2846773-21cat22:55:361
253923399182,4cyclictest2992794-21kernelversion00:35:361
2539233991816,1cyclictest2710014-21latency_hist21:25:011
2539233991816,1cyclictest1309-21mta-sts-daemon22:10:351
2539233991815,2cyclictest2948061-21grep00:05:351
2539233991815,2cyclictest2836129-21idleruntime-cro22:50:001
2539233991815,2cyclictest2733139-21tr21:40:321
2539233991815,2cyclictest2559154-21threads19:20:411
2539233991815,2cyclictest0-21swapper/122:00:021
2539233991815,2cyclictest0-21swapper/122:00:021
2539233991813,2cyclictest69250irq/121-eno122:20:001
2539233991813,1cyclictest491rcuog/200:34:201
2539233991811,2cyclictest1157598rtkit-daemon23:26:321
2539228991815,2cyclictest2930475-21xargs23:50:410
2539228991815,2cyclictest2922817-21grep23:45:400
2539228991815,2cyclictest2922817-21grep23:45:400
2539228991815,2cyclictest2609965-21kthreadcore20:05:360
2539228991814,3cyclictest2977214-21cstates00:25:320
2539228991810,7cyclictest0-21swapper/000:00:020
3240591170,1phc2sys0-21swapper/300:34:463
2539235991714,1cyclictest0-21swapper/223:55:012
2539235991714,1cyclictest0-21swapper/223:15:322
2539235991714,1cyclictest0-21swapper/222:45:002
2539235991712,2cyclictest0-21swapper/221:20:012
253923599171,10cyclictest0-21swapper/223:40:132
253923399174,8cyclictest2650949-21kworker/u16:3+rpciod21:45:191
253923399171,6cyclictest2770130-21sh22:05:241
253923399171,6cyclictest2770130-21sh22:05:241
2539233991715,2cyclictest351ktimers/123:46:041
2539233991715,2cyclictest351ktimers/123:46:041
2539233991714,2cyclictest759-1atopacctd22:30:401
2539233991714,2cyclictest672-21polkitd20:00:021
2539233991714,2cyclictest2911705-21irqrtprio23:40:341
2539233991714,2cyclictest2800262-21sh22:25:331
2539233991714,2cyclictest2697338-21kthreadcore21:15:361
2539233991714,2cyclictest2680599-21pmu-power21:00:401
2539233991713,3cyclictest2861530-21kthreadcore23:05:371
2539233991713,3cyclictest2605391-21kthreadcore20:00:391
2539233991713,3cyclictest0-21swapper/119:20:011
253922899177,5cyclictest0-21swapper/023:24:040
253922899175,5cyclictest0-21swapper/023:10:410
253922899174,6cyclictest0-21swapper/019:24:080
253922899171,7cyclictest2540184-21diskstats19:10:330
2539228991714,2cyclictest2755663-21fschecks_time21:55:340
2539228991714,2cyclictest2755663-21fschecks_time21:55:340
2539228991714,2cyclictest268-21systemd-journal19:30:020
253922899170,9cyclictest2710325-21/usr/sbin/munin21:25:140
253922899170,5cyclictest2954641-21/usr/sbin/munin00:10:390
253922899170,5cyclictest2584386-21/usr/sbin/munin19:45:220
3240591160,4phc2sys0-21swapper/322:30:013
3240591160,2phc2sys0-21swapper/322:40:063
2539235991613,1cyclictest0-21swapper/222:15:022
2539235991613,1cyclictest0-21swapper/221:35:362
2539235991613,1cyclictest0-21swapper/221:05:002
2539235991613,1cyclictest0-21swapper/221:00:012
2539235991613,1cyclictest0-21swapper/220:30:012
2539235991613,1cyclictest0-21swapper/200:40:032
2539235991612,2cyclictest0-21swapper/223:47:112
2539235991612,2cyclictest0-21swapper/223:47:112
2539235991612,2cyclictest0-21swapper/222:30:362
253923599161,10cyclictest28583082sleep223:05:022
253923599160,6cyclictest0-21swapper/219:55:152
253923399169,3cyclictest0-21swapper/123:55:011
253923399167,5cyclictest1034-21runrttasks23:04:301
253923399166,6cyclictest2683628-21cut21:05:351
253923399164,8cyclictest1309-21mta-sts-daemon21:30:281
253923399161,4cyclictest664-21dbus-daemon00:05:021
253923399161,3cyclictest2961985-21ssh00:15:151
2539233991613,2cyclictest759-1atopacctd23:32:341
2539233991613,2cyclictest2612759-21kthreadcore20:05:371
2539233991613,2cyclictest2577994-21wc19:40:001
2539233991612,3cyclictest2904546-21kthreadcore23:35:361
2539233991612,3cyclictest2666947-21kthreadcore20:50:371
2539233991612,2cyclictest0-21swapper/122:40:011
253922899166,2cyclictest0-21swapper/021:17:580
253922899163,5cyclictest2707990-21proc_pri21:20:400
253922899163,2cyclictest0-21swapper/000:01:470
2539228991613,2cyclictest2656901-21munin-plugin-st20:45:010
2539228991613,2cyclictest1-21systemd23:40:030
253922899160,3cyclictest0-21swapper/020:15:440
3240591150,4phc2sys0-21swapper/322:14:493
3240591150,2phc2sys0-21swapper/321:27:153
2539235991513,1cyclictest0-21swapper/223:30:032
2539235991513,1cyclictest0-21swapper/223:10:362
2539235991513,1cyclictest0-21swapper/222:05:032
2539235991513,1cyclictest0-21swapper/200:15:442
2539235991512,2cyclictest0-21swapper/223:10:032
2539235991512,1cyclictest0-21swapper/220:45:362
2539235991512,1cyclictest0-21swapper/220:25:012
2539235991512,1cyclictest0-21swapper/220:05:012
2539235991512,1cyclictest0-21swapper/219:35:352
2539235991512,1cyclictest0-21swapper/219:20:392
2539235991512,1cyclictest0-21swapper/200:05:372
2539235991511,2cyclictest0-21swapper/223:55:362
2539235991511,2cyclictest0-21swapper/221:55:282
2539235991511,2cyclictest0-21swapper/221:55:282
2539235991511,2cyclictest0-21swapper/221:20:322
253923399152,5cyclictest676-21mta-sts-daemon20:45:101
253923399151,4cyclictest2689011-21gltestperf21:10:331
253923399151,4cyclictest2621323-21df20:15:341
2539233991512,2cyclictest2887991-21apt-key23:25:021
2539233991512,2cyclictest2869642-21kthreadcore23:10:361
2539233991512,2cyclictest2793624-21kthreadcore22:20:371
2539233991512,2cyclictest0-21swapper/122:45:011
2539233991511,3cyclictest2970809-21kthreadcore00:20:361
2539233991511,3cyclictest2652452-21kthreadcore20:40:351
2539233991511,3cyclictest2629681-21kthreadcore20:20:361
2539233991511,2cyclictest0-21swapper/120:30:021
253923399150,6cyclictest2567310-21irqrtprio19:30:341
253923399150,3cyclictest0-21swapper/121:25:151
253922899157,7cyclictest2628534-21tr20:20:350
253922899157,2cyclictest0-21swapper/000:36:070
253922899155,8cyclictest2573843-21tr19:35:360
253922899151,3cyclictest2578342-21apt-get19:40:140
2539228991512,2cyclictest688-21in:imuxsock21:14:340
2539228991512,2cyclictest2616336-21kthreadcore20:10:360
2539228991512,2cyclictest1306-21mta-sts-daemon20:35:210
2539228991512,2cyclictest1300-21mta-sts-daemon22:11:300
2539228991512,1cyclictest0-21swapper/020:25:150
2539228991511,3cyclictest2787372-21kthreadcore22:15:360
2539228991511,3cyclictest2598984-21kthreadcore19:55:360
253922899151,12cyclictest664-21dbus-daemon20:05:020
253922899151,12cyclictest2639054-21aten_repower_en20:30:180
3240591146,2phc2sys0-21swapper/300:14:183
3240591141,1phc2sys0-21swapper/300:29:413
3240591140,2phc2sys0-21swapper/323:13:023
3240591140,2phc2sys0-21swapper/323:04:053
3240591140,2phc2sys0-21swapper/322:46:183
3240591140,1phc2sys0-21swapper/300:01:203
253923599141,6cyclictest0-21swapper/221:25:152
2539235991412,1cyclictest0-21swapper/222:05:352
2539235991412,1cyclictest0-21swapper/222:05:352
2539235991412,1cyclictest0-21swapper/221:55:022
2539235991412,1cyclictest0-21swapper/219:10:032
2539235991412,1cyclictest0-21swapper/200:25:362
2539235991412,1cyclictest0-21swapper/200:25:022
2539235991411,1cyclictest0-21swapper/223:36:542
2539235991411,1cyclictest0-21swapper/222:45:322
2539235991411,1cyclictest0-21swapper/221:40:342
2539235991411,1cyclictest0-21swapper/220:40:312
2539235991411,1cyclictest0-21swapper/220:30:372
2539235991411,1cyclictest0-21swapper/200:30:422
253923399141,2cyclictest2976659-21ssh00:25:031
2539233991412,1cyclictest0-21swapper/100:10:321
253922899148,4cyclictest0-21swapper/022:20:220
2539228991411,2cyclictest2843903-21acpi22:55:130
2539228991411,2cyclictest2539263-21apt-key19:10:020
2539228991410,3cyclictest2594853-21kthreadcore19:50:380
3240591131,6phc2sys0-21swapper/319:25:163
3240591131,2phc2sys0-21swapper/321:20:143
3240591130,2phc2sys0-21swapper/323:49:203
3240591130,2phc2sys0-21swapper/323:49:203
3240591130,2phc2sys0-21swapper/323:19:063
3240591130,2phc2sys0-21swapper/322:35:583
3240591130,1phc2sys0-21swapper/321:47:333
3240591130,1phc2sys0-21swapper/300:16:133
253923599131,8cyclictest0-21swapper/220:50:152
2539235991311,1cyclictest0-21swapper/222:35:372
2539235991311,1cyclictest0-21swapper/220:35:312
2539235991311,1cyclictest0-21swapper/219:15:042
2539235991311,1cyclictest0-21swapper/219:10:412
2539235991310,1cyclictest0-21swapper/222:25:372
2539235991310,1cyclictest0-21swapper/221:10:412
2539235991310,1cyclictest0-21swapper/221:05:352
2539235991310,1cyclictest0-21swapper/220:15:342
2539235991310,1cyclictest0-21swapper/220:10:312
2539235991310,1cyclictest0-21swapper/220:05:372
2539235991310,1cyclictest0-21swapper/219:50:382
253923399134,5cyclictest0-21swapper/119:10:021
253923399131,7cyclictest2591480-21irqcore19:50:361
3240591121,3phc2sys0-21swapper/320:45:153
3240591121,2phc2sys0-21swapper/321:16:093
3240591120,3phc2sys0-21swapper/322:55:133
3240591120,3phc2sys0-21swapper/321:59:323
3240591120,3phc2sys0-21swapper/321:59:323
3240591120,3phc2sys0-21swapper/300:05:393
3240591120,2phc2sys0-21swapper/323:30:203
3240591120,2phc2sys0-21swapper/320:02:443
3240591120,2phc2sys0-21swapper/319:35:153
3240591120,1phc2sys0-21swapper/323:59:553
3240591120,1phc2sys0-21swapper/319:44:563
253923599129,1cyclictest0-21swapper/222:20:412
253923599129,1cyclictest0-21swapper/219:45:322
253923599129,1cyclictest0-21swapper/219:40:372
2539235991210,1cyclictest0-21swapper/219:25:422
2539235991210,1cyclictest0-21swapper/200:05:012
3240591112,2phc2sys0-21swapper/321:05:313
3240591111,2phc2sys0-21swapper/322:05:363
3240591111,2phc2sys0-21swapper/322:05:363
3240591110,3phc2sys0-21swapper/322:15:423
3240591110,3phc2sys0-21swapper/321:52:503
3240591110,2phc2sys0-21swapper/321:40:153
3240591110,2phc2sys0-21swapper/320:16:583
3240591110,1phc2sys0-21swapper/323:05:073
3240591110,1phc2sys0-21swapper/322:23:593
3240591110,1phc2sys0-21swapper/319:22:013
253923599119,1cyclictest0-21swapper/219:30:352
3240591105,2phc2sys0-21swapper/323:21:123
3240591101,2phc2sys0-21swapper/323:35:333
3240591101,2phc2sys0-21swapper/319:50:383
3240591100,2phc2sys0-21swapper/323:53:213
3240591100,2phc2sys0-21swapper/322:50:493
3240591100,2phc2sys0-21swapper/321:35:463
3240591100,2phc2sys0-21swapper/321:35:023
3240591100,2phc2sys0-21swapper/321:10:243
3240591100,2phc2sys0-21swapper/320:55:413
3240591100,2phc2sys0-21swapper/320:50:163
3240591100,2phc2sys0-21swapper/320:35:023
3240591100,2phc2sys0-21swapper/320:25:363
3240591100,2phc2sys0-21swapper/319:50:023
3240591100,2phc2sys0-21swapper/319:34:263
3240591100,2phc2sys0-21swapper/300:20:313
324059191,2phc2sys0-21swapper/322:00:393
324059191,2phc2sys0-21swapper/320:44:393
324059190,3phc2sys0-21swapper/323:40:133
324059190,2phc2sys0-21swapper/323:25:353
324059190,2phc2sys0-21swapper/322:30:333
324059190,2phc2sys0-21swapper/321:00:143
324059190,2phc2sys0-21swapper/320:20:033
324059190,2phc2sys0-21swapper/320:05:323
324059190,2phc2sys0-21swapper/319:55:353
324059190,2phc2sys0-21swapper/319:15:443
324059190,2phc2sys0-21swapper/319:10:353
324059190,2phc2sys0-21swapper/319:05:143
324059180,2phc2sys0-21swapper/320:35:143
324059180,2phc2sys0-21swapper/320:10:333
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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