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2026-07-11 - 03:56
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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
Compare latency of primary with shadow system
Characteristics of all highest latencies:
System rackbslot7.osadl.org (updated Sat Jul 11, 2026 00:44:28)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
253025410,15sleep30-21swapper/318:52:383
253025410,15sleep30-21swapper/318:52:383
39979912453,64cyclictest300-21rs:main0
40099912129,41cyclictest0-21swapper/223:17:312
3997991203,71cyclictest0-21swapper/021:02:290
3997991132,27cyclictest30465-21ssh23:17:360
3997991123,29cyclictest12251-21ssh23:41:470
3997991113,24cyclictest4238-21/usr/sbin/munin22:32:550
3997991092,26cyclictest28814-21ssh00:07:540
3997991092,26cyclictest28814-21ssh00:07:540
3997991083,22cyclictest14091-21ssh22:49:390
3997991083,22cyclictest14091-21ssh22:49:390
3997991083,22cyclictest13537-21ssh21:55:060
3997991083,22cyclictest13537-21ssh21:55:060
3997991082,27cyclictest23804-21ssh23:06:500
3997991073,27cyclictest29074-21taskset22:21:440
3997991073,26cyclictest352-21runrttasks19:27:270
3997991073,22cyclictest24743-21ssh21:19:160
3997991073,22cyclictest24743-21ssh21:19:160
3997991072,25cyclictest5374-21ssh23:29:130
3997991072,25cyclictest18782-21ssh22:03:040
3997991063,27cyclictest10729-21ssh22:44:200
3997991062,27cyclictest7988-21ssh22:40:000
3997991062,26cyclictest1482-21ssh21:34:540
3997991062,24cyclictest1162-21ssh00:17:220
3997991062,23cyclictest15163-21ssh23:46:350
3997991053,25cyclictest10311-21ssh21:49:280
3997991053,24cyclictest21616-21taskset21:13:500
3997991052,24cyclictest27255-21ssh23:12:240
3997991052,23cyclictest19942-21/usr/sbin/munin19:42:520
3894210511,65sleep23902-21systemd-run18:57:182
3894210511,65sleep23902-21systemd-run18:57:182
3997991043,25cyclictest19094-21runrttasks21:10:070
3997991043,24cyclictest4651-21ssh21:40:230
3997991042,25cyclictest19696-21sh22:58:390
3997991042,24cyclictest2750-21ssh22:32:060
3997991042,24cyclictest2750-21ssh22:32:060
3997991042,24cyclictest20118-21ssh23:53:380
3997991042,23cyclictest16305-21ssh21:59:290
3997991033,26cyclictest28301-21taskset20:09:070
3997991033,25cyclictest23036-21ssh22:11:310
3997991033,24cyclictest7389-21apt-get20:47:290
3997991033,24cyclictest7389-21apt-get20:47:290
3997991033,24cyclictest24761-21ssh22:12:580
3997991032,27cyclictest21940-21seq19:50:220
3997991032,25cyclictest12638-21ssh20:58:500
3997991032,25cyclictest12638-21ssh20:58:500
3997991032,24cyclictest7238-21taskset20:45:300
3997991032,24cyclictest23586-21ssh00:00:020
3997991032,24cyclictest23586-21ssh00:00:020
3997991023,24cyclictest29013-21fschecks_count20:12:390
3997991023,23cyclictest4112-21taskset20:36:410
3997991022,26cyclictest17006-21taskset19:34:160
3997991022,25cyclictest30779-21ssh22:23:070
3997991022,25cyclictest30328-21rm21:28:080
3997991022,25cyclictest27348-21sh00:07:140
3997991022,25cyclictest25747-21sh23:08:500
3997991022,23cyclictest18299-21ssh23:51:560
3997991022,23cyclictest18299-21ssh23:51:560
354721028,73sleep00-21swapper/018:53:330
354721028,73sleep00-21swapper/018:53:330
3997991013,25cyclictest10614-21taskset19:15:030
3997991013,21cyclictest28250-21ssh21:25:450
3997991012,25cyclictest8100-21ssh21:46:430
3997991012,25cyclictest6756-21ssh00:26:590
3997991012,24cyclictest7985-21ssh23:33:100
3997991003,22cyclictest16766-21ssh22:53:470
3997991002,22cyclictest32580-21ssh00:15:070
399799994,84cyclictest32036-21apt-get20:22:320
399799993,67cyclictest8908-21runrttasks19:08:460
399799993,23cyclictest3305-21sh23:26:530
399799992,27cyclictest7404-21runrttasks19:05:260
399799992,27cyclictest7404-21runrttasks19:05:260
399799992,25cyclictest10559-21taskset20:53:230
4002999840,50cyclictest0-21swapper/121:02:301
399799983,22cyclictest5664-21taskset20:40:540
399799973,6cyclictest0-21swapper/019:37:320
399799972,22cyclictest31443-21taskset20:18:110
399799964,23cyclictest12237-21taskset19:20:130
399799962,24cyclictest23691-21taskset19:57:160
400299954,45cyclictest7802-21wc20:47:201
4009999433,27cyclictest11824-21sh20:57:462
4009999433,27cyclictest11824-21sh20:57:462
4002999435,50cyclictest0-21swapper/123:32:161
3997999437,51cyclictest24496-21ntp_offset19:57:490
399799943,23cyclictest2461-21runrttasks20:31:120
4002999243,40cyclictest0-21swapper/119:27:201
205802920,7sleep2371rcuc/222:07:212
4002999148,36cyclictest31001-21ssh21:30:021
400299913,35cyclictest910-21cstates23:22:321
400299913,35cyclictest417-21ssh22:27:391
400299913,35cyclictest417-21ssh22:27:391
400299913,34cyclictest6731-21grep19:02:491
400299913,34cyclictest6731-21grep19:02:491
399799918,78cyclictest0-21swapper/020:02:520
399799918,78cyclictest0-21swapper/020:02:520
4009999068,13cyclictest6766-21acpi23:32:262
400299904,36cyclictest11343-21munin-run21:52:161
400299904,33cyclictest29386-21latency_hist22:22:191
4002999040,43cyclictest26265-21cstates21:22:341
400299903,34cyclictest6364-21fschecks_count22:37:381
400299903,34cyclictest5730-21latency_hist19:02:211
4002999018,13cyclictest0-21swapper/100:17:171
400299894,35cyclictest21519-21cat19:47:521
4002998938,45cyclictest352-21runrttasks21:11:271
400299893,37cyclictest19002-21latency_hist19:42:201
400299893,36cyclictest10787-21grep23:37:531
400299893,35cyclictest23422-21fschecks_count21:17:411
400299893,35cyclictest23422-21fschecks_count21:17:411
400299893,34cyclictest22315-21grep23:02:541
400299893,33cyclictest11842-21ssh22:47:161
399799892,19cyclictest13849-21runrttasks19:25:190
252828911,46sleep12515-21apt-get18:52:361
252828911,46sleep12515-21apt-get18:52:361
400299883,37cyclictest30011-21latency_hist23:17:191
400299883,37cyclictest25829-21fschecks_time20:02:381
400299883,37cyclictest25829-21fschecks_time20:02:381
4002998772,8cyclictest0-21swapper/121:37:461
4002998766,14cyclictest10887-21diskmemload22:12:191
400299875,43cyclictest352-21runrttasks20:22:321
400299874,32cyclictest18153-21netstat22:02:451
400299873,34cyclictest4626-21fschecks_count20:37:371
400299872,39cyclictest31712-21sh22:25:451
4009998666,14cyclictest10845-21unixbench_singl23:37:532
400299864,34cyclictest6706-21unixbench_singl21:42:531
400299864,31cyclictest17249-21latency_hist19:37:201
400299863,36cyclictest352-21runrttasks19:22:111
400299863,35cyclictest1440-21taskset20:27:391
400299863,32cyclictest10437-21unixbench_multi20:52:531
400299862,34cyclictest8081-21cstates20:48:201
400299862,34cyclictest8081-21cstates20:48:201
400299854,35cyclictest3750-21ntp_states22:32:471
400299854,34cyclictest29015-21fschecks_count20:12:381
400299853,36cyclictest5770-21munin-node23:57:241
400299853,36cyclictest5770-21munin-node23:57:241
400299853,35cyclictest27502-21idleruntime20:07:391
400299853,35cyclictest13756-21unixbench_singl22:48:491
400299853,35cyclictest13756-21unixbench_singl22:48:491
400299853,35cyclictest11647-21latency20:57:421
400299853,35cyclictest11647-21latency20:57:421
400299853,34cyclictest31772-21latency_hist20:22:191
400299852,36cyclictest20069-21head19:42:541
400299852,35cyclictest2303-21grep00:17:541
4009998463,13cyclictest23071-21latency_hist21:17:202
400299844,39cyclictest10186-21grep19:12:521
400299844,33cyclictest12710-21grep21:52:551
400299844,33cyclictest12710-21grep21:52:551
400299844,32cyclictest18302-21/usr/sbin/munin22:57:261
400299843,36cyclictest352-21runrttasks21:16:191
400299843,35cyclictest27791-21ssh00:07:331
400299843,35cyclictest27791-21ssh00:07:331
400299843,32cyclictest4454-21fschecks_count00:22:371
400299843,32cyclictest23094-21switchtime19:52:521
400299843,30cyclictest13071-21fschecks_time23:42:391
400299843,29cyclictest23932-21fschecks_time22:12:361
400299843,26cyclictest24311-21if_eth019:57:441
4009998319,26cyclictest24904-21ssh00:02:372
4009998312,28cyclictest0-21swapper/220:17:392
400299834,33cyclictest15573-21cut22:52:371
400299833,34cyclictest15376-21ssh21:57:501
400299833,32cyclictest14539-21fschecks_time19:27:371
400299833,30cyclictest7106-21tune2fs23:32:381
400299832,33cyclictest24538-21sort23:07:381
400299832,25cyclictest16139-21/usr/sbin/munin23:47:391
400299832,25cyclictest16139-21/usr/sbin/munin23:47:391
4002998320,13cyclictest0-21swapper/119:07:531
4009998229,36cyclictest0-21swapper/219:37:272
4009998219,25cyclictest14789-21rm23:45:332
400299823,42cyclictest19551-21switchtime23:52:511
400299823,33cyclictest453-21cron23:22:161
400299823,31cyclictest32356-21seq21:32:371
400299823,31cyclictest24682-21/usr/sbin/munin00:02:521
400999819,54cyclictest12363-21apt-get22:47:352
400999819,54cyclictest12363-21apt-get22:47:352
4009998166,11cyclictest3985-21cyclictest21:32:202
4009998156,16cyclictest13275-21sh21:54:232
4009998156,16cyclictest13275-21sh21:54:232
4009998131,39cyclictest0-21swapper/223:02:292
400299813,24cyclictest3776-21grep20:32:541
4009998058,14cyclictest2374-21systemd-journal00:17:512
4009998019,28cyclictest6151-21/usr/sbin/munin21:42:422
4009998019,27cyclictest26598-21seq23:11:142
4009997957,15cyclictest23491-21latency_hist22:12:192
4009997955,16cyclictest3985-21cyclictest23:12:502
4009997953,12cyclictest39-21ksoftirqd/222:43:482
4009997815,23cyclictest31243-21taskset22:24:252
4009997813,25cyclictest4416-21cat23:27:462
4009997655,15cyclictest14498-21fschecks_time21:02:402
4009997631,36cyclictest0-21swapper/223:57:252
4009997631,36cyclictest0-21swapper/223:57:252
4009997518,25cyclictest6773-21seq00:27:012
4009997510,26cyclictest0-21swapper/221:47:232
4009997424,43cyclictest0-21swapper/219:42:282
4009997352,13cyclictest298-21in:imuxsock22:37:172
4009997326,33cyclictest0-21swapper/219:57:332
4009997325,34cyclictest0-21swapper/220:07:282
4009997319,23cyclictest4727-21seq21:40:362
4009997315,34cyclictest10887-21diskmemload22:27:412
4009997315,34cyclictest10887-21diskmemload22:27:412
4009997315,25cyclictest29106-21taskset22:21:492
4009997250,15cyclictest3985-21cyclictest19:12:522
400999723,43cyclictest10887-21diskmemload21:20:202
400999723,43cyclictest10887-21diskmemload21:20:202
4009997223,34cyclictest0-21swapper/219:22:302
4009997216,42cyclictest19137-21sshd23:52:412
4009997151,14cyclictest7874-21latency_hist20:47:212
4009997140,19cyclictest4440-21apt-get20:37:262
400999713,36cyclictest29052-21latency_hist21:27:202
4009997119,21cyclictest2299-21ssh21:37:122
4009997113,28cyclictest0-21swapper/200:07:392
4009997113,28cyclictest0-21swapper/200:07:392
4009997112,26cyclictest0-21swapper/222:16:592
400999709,26cyclictest0-21swapper/219:52:392
4009997050,14cyclictest3985-21cyclictest19:32:402
400999698,29cyclictest0-21swapper/222:52:512
4009996951,13cyclictest2489-21kworker/u18:1+events_unbound19:22:172
4009996942,20cyclictest6612-21latency22:37:432
4009996932,27cyclictest14637-21apt-get21:57:272
4009996911,29cyclictest0-21swapper/223:52:202
4009996911,29cyclictest0-21swapper/223:52:202
4009996911,26cyclictest0-21swapper/221:07:332
4009996911,26cyclictest0-21swapper/220:52:492
401499683,27cyclictest21138-21chrt21:12:543
401499682,26cyclictest2265-21chrt21:37:063
400999689,29cyclictest19427-21ssh22:57:552
4009996812,25cyclictest8177-21grep20:48:242
4009996812,25cyclictest8177-21grep20:48:242
4014996720,38cyclictest147012sleep321:02:443
4009996732,10cyclictest10887-21diskmemload23:22:392
4009996729,25cyclictest0-21swapper/220:32:332
4009996723,32cyclictest0-21swapper/220:12:272
401499663,31cyclictest918-21taskset00:17:163
401499662,27cyclictest9725-21taskset23:37:233
401499662,25cyclictest32437-21chrt23:20:543
4009996653,9cyclictest3985-21cyclictest19:27:512
4009996645,11cyclictest0-21swapper/219:12:162
401499652,29cyclictest29081-21chrt23:14:503
401499652,26cyclictest26542-21chrt23:11:053
401499652,25cyclictest8537-21chrt21:47:193
401499643,25cyclictest12944-21chrt21:53:283
401499643,25cyclictest12944-21chrt21:53:283
401499642,29cyclictest27225-21taskset20:07:303
401499642,27cyclictest9189-21chrt23:36:343
401499642,25cyclictest4383-21chrt00:22:353
401499642,23cyclictest12498-21chrt20:58:263
401499642,23cyclictest12498-21chrt20:58:263
4009996438,16cyclictest0-21swapper/219:47:392
4009996419,31cyclictest7669-21cat19:07:192
4009996419,31cyclictest7669-21cat19:07:192
401499633,28cyclictest23619-21chrt22:12:243
401499633,27cyclictest27064-21chrt00:06:263
401499633,27cyclictest22620-21chrt23:57:503
401499633,27cyclictest22620-21chrt23:57:503
401499633,27cyclictest11232-21chrt21:52:023
401499633,25cyclictest18907-21taskset22:03:253
401499633,25cyclictest14782-21chrt21:57:333
401499633,24cyclictest22907-21taskset19:52:483
401499633,23cyclictest32694-21chrt20:22:503
401499632,27cyclictest24025-21taskset23:07:163
401499632,26cyclictest28238-21taskset21:25:433
401499632,25cyclictest8759-21chrt22:42:113
401499632,24cyclictest4597-21chrt21:40:143
401499632,23cyclictest19129-21chrt19:42:313
400999634,29cyclictest0-21swapper/218:57:262
401499624,10cyclictest0-21swapper/321:27:283
401499623,28cyclictest29134-21taskset20:12:413
401499623,24cyclictest19901-21chrt22:59:143
401499623,23cyclictest4671-21chrt22:34:053
401499623,23cyclictest13913-21chrt23:43:033
401499623,22cyclictest4910-21chrt18:57:513
401499622,27cyclictest5156-21chrt23:28:363
401499622,27cyclictest3018-21chrt23:26:053
401499622,26cyclictest1347-21chrt22:28:093
401499622,26cyclictest1347-21chrt22:28:093
401499622,25cyclictest18201-21chrt22:57:193
401499622,24cyclictest3324-21chrt00:20:443
401499622,24cyclictest28050-21chrt00:07:393
401499622,24cyclictest28050-21chrt00:07:393
401499622,24cyclictest12677-21chrt19:22:303
4009996229,20cyclictest10887-21diskmemload00:12:272
4009996227,25cyclictest25577-21apt-get20:02:272
4009996227,25cyclictest25577-21apt-get20:02:272
4009996227,24cyclictest0-21swapper/220:22:322
401499614,23cyclictest15339-21chrt19:28:303
401499613,24cyclictest8842-21chrt19:07:563
401499613,22cyclictest21914-21chrt19:50:003
401499612,26cyclictest10283-21chrt22:43:053
401499612,24cyclictest3869-21chrt20:33:353
401499612,23cyclictest28188-21chrt22:19:133
401499612,23cyclictest24806-21chrt21:19:273
401499612,23cyclictest24806-21chrt21:19:273
401499612,22cyclictest24174-21chrt19:57:423
401499612,21cyclictest8519-21chrt20:48:343
401499612,21cyclictest8519-21chrt20:48:343
401499609,41cyclictest0-21swapper/322:22:443
401499603,24cyclictest15733-21chrt23:47:253
401499603,24cyclictest15733-21chrt23:47:253
401499603,23cyclictest18541-21chrt19:38:223
401499603,22cyclictest5813-21chrt20:42:183
401499603,22cyclictest12095-21chrt19:18:253
401499603,21cyclictest7112-21chrt20:43:523
401499602,26cyclictest10557-21chrt19:14:203
401499602,24cyclictest26105-21taskset20:02:443
401499602,24cyclictest26105-21taskset20:02:443
401499602,23cyclictest17017-21chrt19:34:253
400999602,39cyclictest2617-21latency_hist20:32:192
401499593,21cyclictest21285-21chrt23:56:573
401499593,20cyclictest31496-21taskset20:18:533
401499592,23cyclictest12575-21chrt22:48:033
401499592,23cyclictest12575-21chrt22:48:033
401499592,22cyclictest22695-21chrt22:10:343
401499592,22cyclictest1215-21chrt20:27:273
401499589,39cyclictest0-21swapper/321:07:323
401499582,20cyclictest10796-21chrt20:56:283
4014995810,38cyclictest0-21swapper/319:02:363
4014995810,38cyclictest0-21swapper/319:02:363
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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