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2026-01-03 - 07:37
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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 rackdslot2.osadl.org (updated Sat Jan 03, 2026 00:45:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
315182205173,21sleep10-21swapper/119:06:461
139591205172,22phc2sys0-21swapper/319:05:493
314112204171,22sleep20-21swapper/219:05:292
317582203170,22sleep00-21swapper/019:09:090
32117995932,13cyclictest41-21ksoftirqd/322:55:003
32117995932,13cyclictest41-21ksoftirqd/322:55:003
3211499557,10cyclictest15760-21cat19:40:260
3211499546,15cyclictest26059-21/usr/sbin/munin22:20:220
3211499546,15cyclictest26059-21/usr/sbin/munin22:20:220
3211499538,14cyclictest2421-21df19:15:150
3211499537,15cyclictest27265-21/usr/sbin/munin23:30:210
3211499535,13cyclictest30085-21ls22:25:260
71092520,6sleep23211699cyclictest23:55:142
3211499527,15cyclictest23730-21/usr/sbin/munin00:30:290
3211499518,9cyclictest23531-21wc21:05:230
3211499518,13cyclictest24700-21meminfo22:15:190
3211499516,14cyclictest30798-21/usr/sbin/munin22:30:140
3211499514,12cyclictest10439-21ls21:45:200
139291510,1ptp4l391rcuc/319:14:373
3211699500,2cyclictest41562sleep221:34:362
3211499507,14cyclictest7474-21iostat21:40:160
3211499495,13cyclictest3711-21ls23:45:270
3211499495,13cyclictest24177-21ls23:20:280
3211499489,10cyclictest16809-21sensors23:05:240
3211499486,9cyclictest13144-21switchtime19:35:260
3211499485,7cyclictest18048-21ls22:00:260
3211499477,13cyclictest7799-21irqstats23:55:180
3211499476,6cyclictest12961-21apt-get20:45:130
3211699460,3cyclictest27931-21chrt00:36:132
3211699460,3cyclictest14713-21/usr/sbin/munin19:40:162
3211499467,14cyclictest6806-21irqstats22:45:180
3211499466,7cyclictest15708-21ls00:10:270
3211499466,13cyclictest10587-21apt-get20:40:100
3211499465,8cyclictest5536-21memory23:50:220
3211499465,13cyclictest22314-21ls22:10:170
3211699451,3cyclictest25593-21taskset00:31:392
3211699451,3cyclictest1623-21chrt21:28:142
3211699450,3cyclictest5482-21taskset20:28:532
3211699450,3cyclictest30541-21chrt22:29:442
3211699450,3cyclictest24431-21chrt23:22:072
3211699450,2cyclictest245542sleep221:09:372
3211699450,2cyclictest103002sleep222:53:592
3211699450,2cyclictest103002sleep222:53:592
3211499457,13cyclictest18000-21mailstats00:15:250
3211499456,13cyclictest6215-21ls19:20:290
3211499456,13cyclictest24837-21apt-get21:10:110
3211499455,14cyclictest32037-21apt-get21:25:120
3211499454,12cyclictest19194-21ls20:55:270
32117994412,21cyclictest9257-21/usr/sbin/munin00:00:253
3211699444,30cyclictest0-21swapper/220:19:152
3211699441,3cyclictest0-21swapper/220:32:182
3211699441,2cyclictest114542sleep221:48:522
3211699440,4cyclictest15926-21taskset21:55:312
3211699440,3cyclictest23315-21chrt00:27:542
3211699440,3cyclictest1804-21taskset19:14:122
3211499446,6cyclictest13612-21file00:08:000
3211499446,15cyclictest28548-21apt-get20:10:130
3211699431,3cyclictest21960-21taskset23:16:142
3211699431,3cyclictest0-21swapper/222:41:522
3211699431,3cyclictest0-21swapper/222:38:152
3211699430,3cyclictest3910-21taskset23:45:382
3211699430,3cyclictest1488-21chrt23:40:452
3211699430,2cyclictest148902sleep220:47:362
3211699430,2cyclictest125182sleep220:42:332
3211499437,7cyclictest25411-21hddtemp_smartct23:25:170
3211499437,7cyclictest22820-21python19:55:250
3211499436,13cyclictest9313-21apt-get19:30:130
3211499435,14cyclictest16824-21ls20:50:270
139291430,0ptp4l401ktimersoftd/322:40:293
3211699421,3cyclictest11072-21taskset00:00:592
3211699421,2cyclictest150042sleep223:03:102
3211699420,3cyclictest7981-21taskset22:49:422
3211699420,3cyclictest19637-21chrt23:11:522
3211699420,3cyclictest18438-21chrt22:01:572
3211699420,2cyclictest64942sleep223:53:212
3211699420,2cyclictest29244-21taskset21:18:522
3211699420,2cyclictest268222sleep223:27:212
3211499425,13cyclictest17770-21apt-get23:10:110
3211799411,29cyclictest438-21gdbus00:20:253
3211699416,32cyclictest111752chrt19:31:422
3211699411,4cyclictest23296-21taskset22:13:242
3211699410,3cyclictest31497-21chrt23:36:362
3211699410,3cyclictest26847-21chrt21:13:342
3211699410,2cyclictest313742sleep221:20:362
3211499415,15cyclictest30964-21apt-get20:15:150
3211699400,4cyclictest2973-21taskset20:22:072
3211699400,3cyclictest482-21taskset22:34:012
3211699400,3cyclictest30345-21chrt20:10:562
3211699400,3cyclictest25771-21chrt20:03:072
3211499406,7cyclictest21589-21ls21:00:280
3211499406,14cyclictest29639-21/usr/sbin/munin23:35:210
3211499405,14cyclictest12125-21ls22:55:260
3211699391,3cyclictest0-21swapper/220:35:552
3211699391,3cyclictest0-21swapper/220:35:552
32115993934,3cyclictest25-21ksoftirqd/122:00:101
3211499396,15cyclictest27272-21ls20:05:230
3211499396,15cyclictest27272-21ls20:05:220
32117993832,4cyclictest41-21ksoftirqd/323:56:383
32115993833,3cyclictest25-21ksoftirqd/121:35:121
3211499385,15cyclictest14516-21ls23:00:260
3211499385,14cyclictest3166-21ls21:30:220
32117993731,4cyclictest41-21ksoftirqd/322:49:473
32117993731,4cyclictest41-21ksoftirqd/320:27:233
32117993731,4cyclictest41-21ksoftirqd/300:27:553
32116993731,4cyclictest33-21ksoftirqd/219:27:522
32116993731,4cyclictest33-21ksoftirqd/200:13:582
32115993732,3cyclictest25-21ksoftirqd/119:45:001
3211499376,11cyclictest29987-21df_inode21:20:150
3211499375,14cyclictest13367-21ls21:50:250
3211499374,15cyclictest8037-21ls19:25:210
3211499374,14cyclictest9215-21ls20:35:220
3211499374,14cyclictest9215-21ls20:35:220
32117993631,3cyclictest41-21ksoftirqd/320:00:263
32117993630,4cyclictest41-21ksoftirqd/323:48:563
32117993630,4cyclictest41-21ksoftirqd/320:13:313
32117993630,4cyclictest41-21ksoftirqd/300:19:573
32117993630,3cyclictest41-21ksoftirqd/321:40:003
32116993630,4cyclictest33-21ksoftirqd/200:16:512
32116993630,4cyclictest33-21ksoftirqd/200:09:132
3211699360,3cyclictest4071-21taskset19:17:052
3211699360,3cyclictest18749-21chrt19:49:392
3211699360,3cyclictest17294-21chrt20:53:012
3211699360,2cyclictest255962sleep222:17:252
32115993631,3cyclictest5668-21runrttasks22:45:001
32115993631,3cyclictest25-21ksoftirqd/120:26:011
32115993631,3cyclictest25-21ksoftirqd/100:25:101
32115993630,4cyclictest25-21ksoftirqd/123:46:211
32115993630,4cyclictest25-21ksoftirqd/120:50:511
32115993630,4cyclictest25-21ksoftirqd/119:30:441
32115993628,5cyclictest20756-21irqrtprio21:00:201
32117993531,3cyclictest41-21ksoftirqd/320:06:383
32117993531,3cyclictest41-21ksoftirqd/320:06:383
32117993530,3cyclictest41-21ksoftirqd/322:22:473
32117993530,3cyclictest41-21ksoftirqd/322:22:473
32117993530,3cyclictest41-21ksoftirqd/321:54:273
32117993530,3cyclictest41-21ksoftirqd/319:51:363
32117993529,4cyclictest41-21ksoftirqd/323:27:023
32117993529,4cyclictest41-21ksoftirqd/320:53:013
32117993529,4cyclictest41-21ksoftirqd/320:20:533
32117993528,4cyclictest41-21ksoftirqd/321:30:133
3211699356,27cyclictest2888-21kworker/2:121:00:132
32116993529,4cyclictest33-21ksoftirqd/220:08:322
32116993529,4cyclictest33-21ksoftirqd/220:08:322
32116993529,4cyclictest33-21ksoftirqd/219:57:292
3211699350,3cyclictest13447-21chrt19:35:312
3211699350,3cyclictest12713-21chrt22:59:332
32115993530,3cyclictest25-21ksoftirqd/123:02:371
32115993529,4cyclictest25-21ksoftirqd/123:57:561
32115993529,4cyclictest25-21ksoftirqd/123:06:561
32115993529,4cyclictest25-21ksoftirqd/122:56:391
32115993529,4cyclictest25-21ksoftirqd/122:47:561
32115993529,4cyclictest25-21ksoftirqd/121:20:081
32115993529,4cyclictest25-21ksoftirqd/121:18:321
32115993529,4cyclictest25-21ksoftirqd/120:33:591
32115993529,4cyclictest25-21ksoftirqd/120:12:291
32115993529,4cyclictest25-21ksoftirqd/119:58:401
3211499355,13cyclictest2696-21ls22:35:260
32114993529,4cyclictest9-21ksoftirqd/000:21:430
41298340,1rtkit-daemon0-21swapper/120:35:021
41298340,1rtkit-daemon0-21swapper/120:35:011
32117993429,3cyclictest41-21ksoftirqd/300:05:133
32117993428,4cyclictest41-21ksoftirqd/323:38:573
32117993428,4cyclictest41-21ksoftirqd/323:08:533
32117993428,4cyclictest41-21ksoftirqd/322:28:503
32117993428,4cyclictest41-21ksoftirqd/322:14:493
32117993428,4cyclictest41-21ksoftirqd/322:07:433
32117993428,4cyclictest41-21ksoftirqd/321:56:443
32117993428,4cyclictest41-21ksoftirqd/321:24:113
32117993428,4cyclictest41-21ksoftirqd/320:33:453
32117993428,4cyclictest41-21ksoftirqd/319:39:363
32117993428,4cyclictest41-21ksoftirqd/319:28:173
32116993429,3cyclictest33-21ksoftirqd/221:51:252
32115993429,3cyclictest25-21ksoftirqd/120:24:481
32115993429,3cyclictest25-21ksoftirqd/100:05:351
32115993428,4cyclictest25-21ksoftirqd/121:41:051
32115993428,4cyclictest25-21ksoftirqd/119:54:471
32115993428,4cyclictest25-21ksoftirqd/119:38:101
32115993428,4cyclictest25-21ksoftirqd/100:38:391
32115993428,3cyclictest25-21ksoftirqd/120:57:161
32115993427,4cyclictest25-21ksoftirqd/123:43:451
3211499348,15cyclictest10194-21irqstats00:00:200
32117993328,3cyclictest41-21ksoftirqd/323:53:223
32117993328,3cyclictest41-21ksoftirqd/323:20:003
32117993328,3cyclictest41-21ksoftirqd/322:01:173
32117993327,4cyclictest41-21ksoftirqd/322:55:033
32117993327,4cyclictest41-21ksoftirqd/322:34:433
32117993327,4cyclictest41-21ksoftirqd/320:55:383
32117993327,4cyclictest41-21ksoftirqd/319:33:553
32117993327,3cyclictest41-21ksoftirqd/323:00:033
32116993328,3cyclictest33-21ksoftirqd/220:58:212
32116993327,4cyclictest33-21ksoftirqd/221:39:342
32115993328,3cyclictest25-21ksoftirqd/123:19:171
32115993328,3cyclictest25-21ksoftirqd/122:32:471
32115993328,3cyclictest25-21ksoftirqd/121:05:151
32115993327,4cyclictest25-21ksoftirqd/123:28:001
32115993327,4cyclictest25-21ksoftirqd/100:13:051
3211499336,7cyclictest822-21ls19:10:220
32114993328,3cyclictest9-21ksoftirqd/022:50:160
32114993328,3cyclictest9-21ksoftirqd/022:50:160
32114993327,4cyclictest9-21ksoftirqd/021:39:080
32114993311,10cyclictest25188-21awk20:00:260
104923321,4sleep125-21ksoftirqd/122:35:141
32117993227,3cyclictest41-21ksoftirqd/323:32:593
32117993227,3cyclictest41-21ksoftirqd/321:15:123
32117993227,3cyclictest41-21ksoftirqd/321:13:233
32117993227,3cyclictest41-21ksoftirqd/321:09:583
32117993227,3cyclictest41-21ksoftirqd/319:23:363
32117993226,4cyclictest41-21ksoftirqd/319:47:183
32117993215,15cyclictest32021-21/usr/sbin/munin21:25:173
32116993227,3cyclictest33-21ksoftirqd/223:32:502
32116993227,3cyclictest33-21ksoftirqd/222:07:262
32116993213,16cyclictest27733-21grep22:20:282
32116993213,16cyclictest27733-21grep22:20:282
3211699320,3cyclictest9175-21cat21:45:002
32115993227,3cyclictest25-21ksoftirqd/122:26:541
32115993227,3cyclictest25-21ksoftirqd/121:54:241
32115993227,3cyclictest25-21ksoftirqd/121:25:141
32115993227,3cyclictest25-21ksoftirqd/119:45:031
32115993227,3cyclictest25-21ksoftirqd/100:17:441
32115993226,4cyclictest25-21ksoftirqd/122:24:101
32115993226,4cyclictest25-21ksoftirqd/122:24:101
32115993226,4cyclictest25-21ksoftirqd/122:14:591
32115993226,4cyclictest25-21ksoftirqd/120:16:341
32115993226,4cyclictest25-21ksoftirqd/119:10:311
32115993220,11cyclictest0-21swapper/119:27:451
3211499328,8cyclictest1287-21df20:20:150
3211499324,15cyclictest0-21swapper/023:15:160
32114993227,3cyclictest9-21ksoftirqd/022:05:120
32114993227,3cyclictest9-21ksoftirqd/000:35:060
32114993226,4cyclictest9-21ksoftirqd/021:57:020
32114993226,3cyclictest9-21ksoftirqd/023:45:000
32117993126,3cyclictest41-21ksoftirqd/323:21:123
32117993126,3cyclictest41-21ksoftirqd/321:03:043
32117993126,3cyclictest41-21ksoftirqd/320:50:003
32117993126,3cyclictest41-21ksoftirqd/300:12:513
32117993125,4cyclictest41-21ksoftirqd/319:58:463
32116993125,4cyclictest33-21ksoftirqd/219:51:122
3211699312,28cyclictest19505-21kworker/2:100:20:452
32115993126,3cyclictest25-21ksoftirqd/123:22:421
32115993126,3cyclictest25-21ksoftirqd/122:08:481
32115993125,4cyclictest25-21ksoftirqd/122:15:071
3211499316,7cyclictest3898-21diskstats22:40:150
3211499314,16cyclictest0-21swapper/020:25:230
32114993125,4cyclictest9-21ksoftirqd/021:15:570
32117993025,3cyclictest41-21ksoftirqd/323:11:383
32117993025,3cyclictest41-21ksoftirqd/321:49:073
32117993025,3cyclictest41-21ksoftirqd/321:40:093
32117993025,3cyclictest41-21ksoftirqd/319:41:383
32117993025,3cyclictest41-21ksoftirqd/300:39:233
32117993024,4cyclictest41-21ksoftirqd/322:35:253
3211699306,22cyclictest16340-21kernelversion23:05:192
32116993025,3cyclictest33-21ksoftirqd/219:21:582
32115993025,3cyclictest25-21ksoftirqd/121:49:151
32115993024,4cyclictest25-21ksoftirqd/123:37:311
32115993024,4cyclictest25-21ksoftirqd/119:21:531
32114993024,4cyclictest9-21ksoftirqd/019:52:300
32117992924,3cyclictest41-21ksoftirqd/322:16:473
32117992924,3cyclictest41-21ksoftirqd/320:35:093
32117992924,3cyclictest41-21ksoftirqd/320:35:093
32115992924,3cyclictest25-21ksoftirqd/121:58:451
32115992924,3cyclictest25-21ksoftirqd/100:02:181
32115992923,4cyclictest25-21ksoftirqd/120:02:251
32115992923,3cyclictest25-21ksoftirqd/121:30:581
3211499293,15cyclictest0-21swapper/000:25:170
32117992823,3cyclictest41-21ksoftirqd/319:16:233
32115992823,3cyclictest25-21ksoftirqd/120:45:121
32115992823,3cyclictest25-21ksoftirqd/100:34:111
32115992822,4cyclictest25-21ksoftirqd/121:12:371
32117992722,3cyclictest41-21ksoftirqd/323:44:423
32117992722,3cyclictest41-21ksoftirqd/320:44:233
32117992721,3cyclictest41-21ksoftirqd/300:31:583
32115992722,3cyclictest25-21ksoftirqd/122:52:381
32115992722,3cyclictest25-21ksoftirqd/122:52:381
32115992722,3cyclictest25-21ksoftirqd/120:40:091
32115992721,4cyclictest25-21ksoftirqd/123:11:391
32115992721,3cyclictest25-21ksoftirqd/123:33:081
3211599270,26cyclictest0-21swapper/119:15:461
3211499273,16cyclictest0-21swapper/020:30:210
32114992621,3cyclictest9-21ksoftirqd/019:45:170
139291250,0ptp4l401ktimersoftd/320:15:243
32115992419,3cyclictest25-21ksoftirqd/123:53:301
32115992419,3cyclictest25-21ksoftirqd/100:23:331
32115992318,3cyclictest25-21ksoftirqd/120:07:181
32115992318,3cyclictest25-21ksoftirqd/120:07:181
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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