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2026-01-11 - 13:40
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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 rackdslot4.osadl.org (updated Sun Jan 11, 2026 00:45:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
138591202168,23phc2sys0-21swapper/319:09:523
150942201167,23sleep10-21swapper/119:07:321
150902200168,21sleep20-21swapper/219:07:292
151492199165,22sleep00-21swapper/019:08:150
25662590,2sleep20-21swapper/221:55:172
138491590,1ptp4l32148-21smartctl20:45:163
138491580,1ptp4l401ktimersoftd/323:34:303
138491530,1ptp4l401ktimersoftd/300:01:383
138491520,8ptp4l0-21swapper/319:55:133
138491520,8ptp4l0-21swapper/319:55:133
308002510,4sleep0101ktimersoftd/021:45:240
138491450,0ptp4l401ktimersoftd/323:35:173
15581994432,10cyclictest41-21ksoftirqd/323:15:193
15581994334,2cyclictest41-21ksoftirqd/300:00:013
15581994313,3cyclictest41-21ksoftirqd/322:05:243
15579994337,4cyclictest24114-21cron21:35:011
138491430,1ptp4l401ktimersoftd/321:20:513
15581994237,2cyclictest41-21ksoftirqd/323:30:003
138491420,0ptp4l401ktimersoftd/322:34:423
1558199417,8cyclictest41-21ksoftirqd/300:25:003
1558199417,8cyclictest41-21ksoftirqd/300:25:003
15581994129,9cyclictest41-21ksoftirqd/300:10:143
15581994033,4cyclictest41-21ksoftirqd/323:00:003
15581994028,10cyclictest41-21ksoftirqd/323:10:123
15581994020,3cyclictest41-21ksoftirqd/300:25:283
15581994012,4cyclictest41-21ksoftirqd/321:25:203
15581994011,4cyclictest41-21ksoftirqd/321:15:233
15581994011,3cyclictest41-21ksoftirqd/319:20:113
1558199398,4cyclictest41-21ksoftirqd/322:50:273
1558199398,4cyclictest41-21ksoftirqd/319:40:003
1558199397,4cyclictest41-21ksoftirqd/320:20:003
1558199397,10cyclictest41-21ksoftirqd/322:00:183
15581993934,3cyclictest41-21ksoftirqd/322:00:003
15581993928,9cyclictest41-21ksoftirqd/321:00:283
15581993928,9cyclictest41-21ksoftirqd/321:00:273
15581993928,3cyclictest41-21ksoftirqd/320:20:213
15581993927,9cyclictest3383-21latency00:05:213
1558199384,8cyclictest41-21ksoftirqd/321:50:163
15581993833,3cyclictest41-21ksoftirqd/319:45:233
15581993832,3cyclictest41-21ksoftirqd/322:25:203
15580993831,4cyclictest33-21ksoftirqd/221:50:122
15579993832,4cyclictest25-21ksoftirqd/100:02:081
1558199378,8cyclictest41-21ksoftirqd/321:45:153
1558199376,7cyclictest41-21ksoftirqd/320:59:593
1558199376,2cyclictest41-21ksoftirqd/319:30:133
1558199374,8cyclictest41-21ksoftirqd/323:00:193
15581993733,3cyclictest41-21ksoftirqd/322:25:003
15581993733,3cyclictest41-21ksoftirqd/320:05:003
15581993733,2cyclictest41-21ksoftirqd/321:10:263
15581993732,3cyclictest18330-21cstates19:15:113
15581993731,3cyclictest41-21ksoftirqd/320:30:013
1558099379,26cyclictest0-21swapper/221:20:232
15580993731,3cyclictest33-21ksoftirqd/223:20:012
15580993730,5cyclictest33-21ksoftirqd/223:01:452
15580993730,5cyclictest33-21ksoftirqd/222:31:222
1558099370,35cyclictest0-21swapper/221:00:232
1558099370,35cyclictest0-21swapper/221:00:232
15579993731,4cyclictest25-21ksoftirqd/121:10:071
15579993730,5cyclictest25-21ksoftirqd/100:16:121
15579993730,4cyclictest25-21ksoftirqd/122:58:151
15578993732,3cyclictest9-21ksoftirqd/019:40:000
1558199368,3cyclictest41-21ksoftirqd/319:25:243
1558199366,2cyclictest41-21ksoftirqd/322:35:203
15581993632,2cyclictest41-21ksoftirqd/319:10:193
15581993631,3cyclictest41-21ksoftirqd/323:45:013
15581993631,2cyclictest41-21ksoftirqd/321:07:353
15581993630,3cyclictest41-21ksoftirqd/323:45:113
15581993630,3cyclictest13562-21cron20:10:003
15581993629,4cyclictest41-21ksoftirqd/323:05:143
15581993626,9cyclictest41-21ksoftirqd/321:40:263
1558199361,11cyclictest41-21ksoftirqd/321:30:133
1558199360,5cyclictest41-21ksoftirqd/323:50:133
1558099367,27cyclictest0-21swapper/223:20:342
15580993630,4cyclictest33-21ksoftirqd/221:06:312
15580993630,4cyclictest33-21ksoftirqd/219:53:502
15580993629,5cyclictest33-21ksoftirqd/222:38:542
15580993629,4cyclictest33-21ksoftirqd/200:00:572
15579993630,4cyclictest25-21ksoftirqd/123:35:531
1557999362,32cyclictest23162-21kworker/1:021:00:341
1557999362,32cyclictest23162-21kworker/1:021:00:331
208672350,5sleep220869-21rt-features21:25:252
1558199355,8cyclictest41-21ksoftirqd/300:35:213
1558199355,3cyclictest41-21ksoftirqd/322:15:163
1558199353,8cyclictest41-21ksoftirqd/300:30:143
15581993531,3cyclictest41-21ksoftirqd/322:45:133
15581993530,3cyclictest41-21ksoftirqd/323:20:273
1558199352,5cyclictest41-21ksoftirqd/322:10:163
15580993530,3cyclictest33-21ksoftirqd/222:43:222
15580993529,4cyclictest33-21ksoftirqd/222:05:392
15580993529,4cyclictest33-21ksoftirqd/219:35:532
15580993529,4cyclictest33-21ksoftirqd/200:21:122
15580993529,4cyclictest33-21ksoftirqd/200:21:122
15580993529,3cyclictest33-21ksoftirqd/219:34:382
15580993528,5cyclictest33-21ksoftirqd/222:10:012
15580993528,4cyclictest33-21ksoftirqd/223:37:392
15579993530,3cyclictest25-21ksoftirqd/119:55:121
15579993530,3cyclictest25-21ksoftirqd/119:55:121
15579993529,4cyclictest25-21ksoftirqd/123:54:391
15579993529,4cyclictest25-21ksoftirqd/123:06:041
15579993529,4cyclictest25-21ksoftirqd/120:47:161
1557999350,2cyclictest121rcu_preempt22:35:231
15578993529,4cyclictest9-21ksoftirqd/023:29:270
15578993529,4cyclictest9-21ksoftirqd/020:35:400
1558199346,7cyclictest41-21ksoftirqd/321:35:183
15581993431,2cyclictest41-21ksoftirqd/319:40:133
15581993430,2cyclictest41-21ksoftirqd/322:40:203
15580993430,3cyclictest33-21ksoftirqd/200:00:002
15580993429,3cyclictest33-21ksoftirqd/223:08:232
15580993429,3cyclictest33-21ksoftirqd/220:10:142
15580993428,4cyclictest33-21ksoftirqd/223:52:142
15580993428,4cyclictest33-21ksoftirqd/200:35:312
15580993428,3cyclictest33-21ksoftirqd/223:30:332
15580993428,3cyclictest33-21ksoftirqd/222:48:022
15580993427,5cyclictest33-21ksoftirqd/220:08:422
15579993429,3cyclictest25-21ksoftirqd/123:11:221
15579993429,3cyclictest25-21ksoftirqd/120:43:271
15579993429,3cyclictest25-21ksoftirqd/119:45:181
15579993429,3cyclictest25-21ksoftirqd/100:05:121
15579993428,4cyclictest25-21ksoftirqd/123:24:371
15579993428,4cyclictest25-21ksoftirqd/119:11:121
15579993428,4cyclictest25-21ksoftirqd/100:28:241
15579993427,5cyclictest25-21ksoftirqd/121:43:401
15579993427,4cyclictest25-21ksoftirqd/122:47:391
15579993427,4cyclictest25-21ksoftirqd/100:20:291
15579993427,4cyclictest25-21ksoftirqd/100:20:291
15578993429,3cyclictest9-21ksoftirqd/023:43:310
15578993429,2cyclictest9-21ksoftirqd/022:25:010
15578993428,4cyclictest9-21ksoftirqd/023:20:110
15578993428,4cyclictest9-21ksoftirqd/000:22:180
15578993428,4cyclictest9-21ksoftirqd/000:22:180
15578993427,4cyclictest9-21ksoftirqd/019:43:130
1558199333,3cyclictest121rcu_preempt00:15:173
15581993329,2cyclictest41-21ksoftirqd/320:40:193
15581993327,4cyclictest41-21ksoftirqd/320:29:333
15581993327,3cyclictest41-21ksoftirqd/320:35:153
1558199330,5cyclictest41-21ksoftirqd/320:10:283
15580993327,4cyclictest33-21ksoftirqd/220:41:272
15580993326,4cyclictest33-21ksoftirqd/219:42:472
15579993328,3cyclictest25-21ksoftirqd/121:08:581
15579993327,4cyclictest25-21ksoftirqd/122:07:481
15579993327,4cyclictest25-21ksoftirqd/121:18:541
15579993327,4cyclictest25-21ksoftirqd/120:56:461
15579993327,4cyclictest25-21ksoftirqd/119:53:291
15579993327,4cyclictest25-21ksoftirqd/119:22:481
15578993327,4cyclictest9-21ksoftirqd/022:55:440
15578993327,4cyclictest9-21ksoftirqd/022:04:530
15578993327,4cyclictest9-21ksoftirqd/021:54:150
15578993327,4cyclictest9-21ksoftirqd/021:40:510
15578993327,4cyclictest9-21ksoftirqd/021:15:190
15578993327,4cyclictest9-21ksoftirqd/021:09:340
15578993327,4cyclictest9-21ksoftirqd/019:58:290
15578993327,4cyclictest9-21ksoftirqd/019:58:290
15578993327,4cyclictest9-21ksoftirqd/019:30:570
15578993327,4cyclictest9-21ksoftirqd/000:01:430
15578993327,3cyclictest9-21ksoftirqd/022:15:130
15578993327,3cyclictest9-21ksoftirqd/021:20:570
1558199324,3cyclictest121rcu_preempt20:50:183
15581993229,2cyclictest41-21ksoftirqd/319:50:053
15580993227,3cyclictest33-21ksoftirqd/223:15:012
15580993227,3cyclictest33-21ksoftirqd/222:21:092
15580993226,4cyclictest33-21ksoftirqd/222:52:012
15580993226,4cyclictest33-21ksoftirqd/221:34:032
15580993226,4cyclictest33-21ksoftirqd/220:52:352
15580993226,4cyclictest33-21ksoftirqd/200:18:152
15580993225,4cyclictest33-21ksoftirqd/221:44:182
15579993228,3cyclictest25-21ksoftirqd/120:40:011
15579993227,3cyclictest25-21ksoftirqd/123:28:091
15579993227,3cyclictest25-21ksoftirqd/123:18:391
15579993227,3cyclictest25-21ksoftirqd/122:50:431
15579993227,3cyclictest25-21ksoftirqd/121:35:111
15579993226,4cyclictest25-21ksoftirqd/123:55:161
15579993226,4cyclictest25-21ksoftirqd/120:34:291
15578993228,3cyclictest9-21ksoftirqd/020:00:200
15578993227,3cyclictest9-21ksoftirqd/023:30:250
15578993227,3cyclictest9-21ksoftirqd/022:51:140
15578993226,4cyclictest9-21ksoftirqd/023:46:470
15578993226,4cyclictest9-21ksoftirqd/022:25:560
15578993226,4cyclictest9-21ksoftirqd/021:56:440
15578993226,4cyclictest9-21ksoftirqd/021:14:030
15578993226,4cyclictest9-21ksoftirqd/020:51:050
15578993226,4cyclictest9-21ksoftirqd/020:20:440
15578993226,4cyclictest9-21ksoftirqd/000:30:310
15578993226,3cyclictest9-21ksoftirqd/000:12:580
15578993225,4cyclictest9-21ksoftirqd/020:55:420
15578993221,9cyclictest9-21ksoftirqd/000:18:070
15580993126,3cyclictest33-21ksoftirqd/222:04:072
15580993126,3cyclictest33-21ksoftirqd/221:16:252
15580993126,3cyclictest33-21ksoftirqd/220:47:022
15580993126,3cyclictest33-21ksoftirqd/200:10:542
15580993125,4cyclictest33-21ksoftirqd/223:49:212
15580993125,4cyclictest33-21ksoftirqd/223:25:312
15580993125,4cyclictest33-21ksoftirqd/220:00:322
15580993125,4cyclictest33-21ksoftirqd/200:27:242
15580993125,3cyclictest33-21ksoftirqd/222:16:022
15580993124,4cyclictest33-21ksoftirqd/221:45:382
15580993124,4cyclictest33-21ksoftirqd/219:55:232
15580993124,4cyclictest33-21ksoftirqd/219:55:222
15579993126,3cyclictest25-21ksoftirqd/121:48:411
15579993126,3cyclictest25-21ksoftirqd/120:24:371
15579993126,3cyclictest25-21ksoftirqd/100:32:531
15579993126,3cyclictest25-21ksoftirqd/100:13:321
15579993125,4cyclictest25-21ksoftirqd/122:02:461
15578993126,3cyclictest9-21ksoftirqd/023:17:530
15578993126,3cyclictest9-21ksoftirqd/022:09:260
15578993126,3cyclictest9-21ksoftirqd/020:45:060
15578993126,3cyclictest9-21ksoftirqd/019:52:590
15578993126,3cyclictest9-21ksoftirqd/019:18:460
15578993125,4cyclictest9-21ksoftirqd/023:37:050
15578993125,4cyclictest9-21ksoftirqd/023:12:380
15578993125,4cyclictest9-21ksoftirqd/022:41:320
15578993125,4cyclictest9-21ksoftirqd/000:27:520
15578993124,4cyclictest6779-21cron23:10:000
15580993026,3cyclictest33-21ksoftirqd/221:00:002
15580993026,3cyclictest33-21ksoftirqd/219:15:172
15580993025,3cyclictest33-21ksoftirqd/219:13:042
15580993024,4cyclictest33-21ksoftirqd/220:39:232
15580993024,3cyclictest33-21ksoftirqd/221:13:102
15579993025,3cyclictest25-21ksoftirqd/122:44:231
15579993025,3cyclictest25-21ksoftirqd/122:24:431
15579993025,3cyclictest25-21ksoftirqd/121:50:131
15579993025,3cyclictest25-21ksoftirqd/119:40:021
15579993024,4cyclictest25-21ksoftirqd/120:50:291
15579993024,4cyclictest25-21ksoftirqd/119:34:471
15578993025,3cyclictest9-21ksoftirqd/022:13:400
15578993025,3cyclictest9-21ksoftirqd/021:35:110
15578993025,3cyclictest9-21ksoftirqd/020:32:110
15578993025,3cyclictest9-21ksoftirqd/019:20:500
15578993025,3cyclictest9-21ksoftirqd/000:37:450
15578993024,3cyclictest9-21ksoftirqd/020:20:000
15580992925,2cyclictest33-21ksoftirqd/220:20:002
15580992924,3cyclictest33-21ksoftirqd/220:30:012
15580992924,3cyclictest33-21ksoftirqd/200:30:572
15580992923,4cyclictest33-21ksoftirqd/223:40:562
15580992923,4cyclictest33-21ksoftirqd/219:26:582
15579992924,3cyclictest25-21ksoftirqd/123:47:451
15579992924,3cyclictest25-21ksoftirqd/123:44:111
15579992924,3cyclictest25-21ksoftirqd/122:16:321
15579992924,3cyclictest25-21ksoftirqd/120:16:431
15579992924,3cyclictest25-21ksoftirqd/119:38:401
15579992923,4cyclictest25-21ksoftirqd/121:24:111
15578992924,3cyclictest9-21ksoftirqd/023:50:210
15578992924,3cyclictest9-21ksoftirqd/021:02:480
15578992924,3cyclictest9-21ksoftirqd/021:02:480
15578992924,3cyclictest9-21ksoftirqd/019:25:360
15578992924,3cyclictest9-21ksoftirqd/019:11:400
15578992923,4cyclictest9-21ksoftirqd/022:33:340
15580992823,3cyclictest33-21ksoftirqd/200:06:542
15579992823,3cyclictest25-21ksoftirqd/122:30:561
15579992823,3cyclictest25-21ksoftirqd/120:01:261
15579992822,4cyclictest25-21ksoftirqd/123:03:041
15579992822,4cyclictest25-21ksoftirqd/119:25:171
15579992822,4cyclictest25-21ksoftirqd/119:16:381
15578992823,3cyclictest9-21ksoftirqd/023:59:100
15578992823,3cyclictest9-21ksoftirqd/020:13:180
15578992823,3cyclictest9-21ksoftirqd/019:45:330
15578992822,4cyclictest9-21ksoftirqd/022:35:270
15578992822,4cyclictest9-21ksoftirqd/020:29:220
15578992822,3cyclictest9-21ksoftirqd/020:40:190
15580992722,3cyclictest33-21ksoftirqd/221:39:412
15580992720,4cyclictest33-21ksoftirqd/222:55:192
15579992722,3cyclictest25-21ksoftirqd/122:14:041
15579992720,4cyclictest25-21ksoftirqd/100:35:031
15580992621,3cyclictest33-21ksoftirqd/220:28:042
15580992621,3cyclictest33-21ksoftirqd/219:48:422
15578992621,3cyclictest9-21ksoftirqd/021:30:190
15578992621,3cyclictest9-21ksoftirqd/021:25:210
15578992620,4cyclictest9-21ksoftirqd/020:08:560
15578992620,3cyclictest9-21ksoftirqd/022:45:180
15579992520,3cyclictest25-21ksoftirqd/120:25:141
15579992419,3cyclictest25-21ksoftirqd/122:25:291
15578992419,3cyclictest9-21ksoftirqd/023:00:260
15578992419,3cyclictest9-21ksoftirqd/000:05:380
15580992318,3cyclictest33-21ksoftirqd/219:22:282
15580992217,3cyclictest33-21ksoftirqd/222:25:192
15580992216,4cyclictest33-21ksoftirqd/220:23:512
15579992216,3cyclictest20170-21grep21:25:191
1557999221,20cyclictest0-21swapper/123:30:141
15579992014,4cyclictest12464-21missed_timers20:05:211
29862170,1sleep10-21swapper/121:55:211
15579991612,2cyclictest14233-21df_abs20:10:161
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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