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2026-04-14 - 05:09
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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 Tue Apr 14, 2026 00:45:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
18202204166,27sleep00-21swapper/019:07:100
138591204170,22phc2sys0-21swapper/319:09:553
17252202168,22sleep10-21swapper/119:06:021
17462201167,23sleep20-21swapper/219:06:192
2389996527,10cyclictest41-21ksoftirqd/323:55:173
2389996325,8cyclictest41-21ksoftirqd/320:36:043
238699632,21cyclictest9512-21apt-get23:45:140
2389996231,8cyclictest41-21ksoftirqd/322:20:183
2389996224,4cyclictest41-21ksoftirqd/323:25:283
2388996231,3cyclictest33-21ksoftirqd/223:40:152
2388996130,4cyclictest33-21ksoftirqd/219:45:252
54692600,3sleep35474-21latency22:30:203
2389996024,8cyclictest41-21ksoftirqd/321:03:363
2389996021,8cyclictest41-21ksoftirqd/320:55:223
2388996031,8cyclictest33-21ksoftirqd/220:25:172
2388996031,3cyclictest33-21ksoftirqd/220:00:142
2389995931,4cyclictest41-21ksoftirqd/319:40:143
2389995927,7cyclictest41-21ksoftirqd/300:25:183
2389995921,4cyclictest41-21ksoftirqd/319:14:243
2388995930,8cyclictest33-21ksoftirqd/220:40:132
2388995930,4cyclictest33-21ksoftirqd/221:40:252
2388995930,4cyclictest33-21ksoftirqd/200:10:132
2388995929,5cyclictest33-21ksoftirqd/223:55:162
2389995828,3cyclictest41-21ksoftirqd/321:55:133
2388995830,4cyclictest33-21ksoftirqd/220:05:162
2389995730,9cyclictest41-21ksoftirqd/300:05:183
2388995728,3cyclictest33-21ksoftirqd/222:15:182
2388995727,4cyclictest33-21ksoftirqd/222:05:122
2388995727,4cyclictest33-21ksoftirqd/221:50:132
2388995727,4cyclictest33-21ksoftirqd/200:30:182
2388995716,5cyclictest33-21ksoftirqd/220:55:252
2389995629,3cyclictest41-21ksoftirqd/322:50:153
2389995620,4cyclictest41-21ksoftirqd/319:21:153
2388995629,3cyclictest33-21ksoftirqd/222:00:192
2388995629,3cyclictest33-21ksoftirqd/221:25:142
2388995628,3cyclictest33-21ksoftirqd/222:45:142
2388995627,4cyclictest33-21ksoftirqd/222:35:172
2388995626,3cyclictest33-21ksoftirqd/223:55:012
2386995613,18cyclictest19557-21/usr/sbin/munin20:50:150
2389995529,4cyclictest41-21ksoftirqd/323:15:193
2389995524,10cyclictest41-21ksoftirqd/320:20:153
238899554,10cyclictest33-21ksoftirqd/220:40:002
2388995526,4cyclictest33-21ksoftirqd/221:05:172
2388995525,4cyclictest33-21ksoftirqd/223:15:142
2388995525,4cyclictest33-21ksoftirqd/219:55:192
2389995428,4cyclictest41-21ksoftirqd/323:35:173
2389995419,3cyclictest41-21ksoftirqd/300:04:543
2389995419,10cyclictest41-21ksoftirqd/322:49:153
2388995422,7cyclictest33-21ksoftirqd/220:50:132
238699546,25cyclictest16604-21seq20:44:260
2389995321,9cyclictest41-21ksoftirqd/323:43:513
2389995321,3cyclictest41-21ksoftirqd/319:15:273
2389995320,9cyclictest41-21ksoftirqd/320:08:493
2389995320,10cyclictest41-21ksoftirqd/300:14:203
2389995319,10cyclictest41-21ksoftirqd/322:27:103
2388995320,8cyclictest33-21ksoftirqd/221:15:262
68332520,3sleep00-21swapper/023:40:000
238999525,8cyclictest41-21ksoftirqd/319:55:173
238999523,9cyclictest41-21ksoftirqd/320:45:153
238999523,9cyclictest41-21ksoftirqd/320:45:153
2389995219,4cyclictest41-21ksoftirqd/320:29:143
2388995213,4cyclictest33-21ksoftirqd/222:10:252
238899511,8cyclictest33-21ksoftirqd/220:15:142
238899510,7cyclictest33-21ksoftirqd/220:50:002
238899510,7cyclictest33-21ksoftirqd/220:50:002
238999505,8cyclictest41-21ksoftirqd/321:40:143
238999505,8cyclictest41-21ksoftirqd/320:10:133
2389995029,11cyclictest41-21ksoftirqd/322:05:183
2389995019,10cyclictest41-21ksoftirqd/321:23:313
2388995026,4cyclictest33-21ksoftirqd/220:30:152
238699501,4cyclictest223-21systemd-journal23:14:570
238699501,4cyclictest223-21systemd-journal23:14:570
238999493,8cyclictest41-21ksoftirqd/323:20:133
238999492,6cyclictest41-21ksoftirqd/320:50:023
238999491,9cyclictest41-21ksoftirqd/323:00:243
2389994919,10cyclictest41-21ksoftirqd/320:03:403
2388994932,6cyclictest33-21ksoftirqd/223:20:232
2389994844,3cyclictest391rcuc/319:54:593
2389994829,10cyclictest41-21ksoftirqd/321:30:243
2389994829,10cyclictest41-21ksoftirqd/321:10:133
238899485,3cyclictest33-21ksoftirqd/223:25:132
238899483,8cyclictest33-21ksoftirqd/221:15:002
2388994832,9cyclictest33-21ksoftirqd/200:20:242
2388994832,8cyclictest33-21ksoftirqd/223:45:242
2388994832,6cyclictest33-21ksoftirqd/219:15:182
2388994829,9cyclictest33-21ksoftirqd/200:15:182
2388994818,4cyclictest33-21ksoftirqd/219:25:242
2388994817,8cyclictest33-21ksoftirqd/222:30:242
238899481,10cyclictest33-21ksoftirqd/222:50:142
238999473,9cyclictest41-21ksoftirqd/319:25:263
238999472,9cyclictest41-21ksoftirqd/321:15:153
2389994726,11cyclictest41-21ksoftirqd/322:00:183
238899473,3cyclictest121rcu_preempt19:30:142
2388994732,4cyclictest33-21ksoftirqd/200:00:372
2388994722,13cyclictest33-21ksoftirqd/221:20:232
238899471,6cyclictest33-21ksoftirqd/219:15:012
2387994717,29cyclictest0-21swapper/100:06:241
238999467,7cyclictest41-21ksoftirqd/321:39:593
238999462,8cyclictest41-21ksoftirqd/322:45:003
2389994618,9cyclictest41-21ksoftirqd/323:08:423
238899467,2cyclictest33-21ksoftirqd/219:50:222
238899465,8cyclictest33-21ksoftirqd/222:20:132
238899464,3cyclictest33-21ksoftirqd/222:40:172
2388994632,4cyclictest33-21ksoftirqd/200:05:132
2388994631,5cyclictest33-21ksoftirqd/222:55:132
238899462,7cyclictest33-21ksoftirqd/219:45:012
2388994625,7cyclictest33-21ksoftirqd/219:20:572
2388994610,3cyclictest33-21ksoftirqd/221:30:232
2387994618,26cyclictest0-21swapper/121:40:531
2387994617,27cyclictest0-21swapper/122:00:341
2389994532,3cyclictest41-21ksoftirqd/300:20:163
2389994530,4cyclictest41-21ksoftirqd/319:35:163
2389994528,9cyclictest41-21ksoftirqd/322:40:013
2389994528,8cyclictest41-21ksoftirqd/300:30:143
2389994526,10cyclictest41-21ksoftirqd/323:30:253
238899458,4cyclictest33-21ksoftirqd/223:30:282
238899454,8cyclictest33-21ksoftirqd/221:55:132
2388994536,2cyclictest33-21ksoftirqd/220:10:182
2388994534,2cyclictest33-21ksoftirqd/200:35:142
2388994530,6cyclictest33-21ksoftirqd/223:05:242
238899452,10cyclictest33-21ksoftirqd/220:20:172
238899451,8cyclictest33-21ksoftirqd/221:00:222
2387994516,28cyclictest0-21swapper/123:36:141
146292450,2sleep30-21swapper/319:35:003
2389994438,3cyclictest14185-21idleruntime-cro23:55:003
2389994427,9cyclictest41-21ksoftirqd/300:39:563
238999441,5cyclictest401ktimersoftd/321:25:283
238999440,6cyclictest41-21ksoftirqd/320:45:013
238899443,9cyclictest33-21ksoftirqd/223:35:182
2388994428,9cyclictest33-21ksoftirqd/223:10:182
2388994428,9cyclictest33-21ksoftirqd/223:10:182
2389994323,10cyclictest41-21ksoftirqd/320:15:173
2389994310,10cyclictest41-21ksoftirqd/321:55:013
238999430,6cyclictest41-21ksoftirqd/321:05:233
238899435,8cyclictest33-21ksoftirqd/221:35:262
238899433,6cyclictest33-21ksoftirqd/221:45:182
2388994329,4cyclictest33-21ksoftirqd/200:25:152
2388994329,3cyclictest33-21ksoftirqd/219:35:242
238999423,9cyclictest41-21ksoftirqd/320:30:133
2389994231,2cyclictest41-21ksoftirqd/323:45:163
238999422,9cyclictest41-21ksoftirqd/323:10:213
238999422,9cyclictest41-21ksoftirqd/323:10:203
2389994227,5cyclictest41-21ksoftirqd/322:15:173
238999420,5cyclictest0-21swapper/300:15:203
2388994230,3cyclictest33-21ksoftirqd/222:25:162
238899420,8cyclictest33-21ksoftirqd/223:04:592
238799420,40cyclictest0-21swapper/123:32:041
2389994130,3cyclictest41-21ksoftirqd/319:45:163
2389994128,3cyclictest41-21ksoftirqd/322:10:133
238999402,2cyclictest121rcu_preempt22:55:113
238799400,1cyclictest0-21swapper/121:10:431
2386993932,4cyclictest7789-21irqrtprio20:25:190
238999383,2cyclictest121rcu_preempt21:50:003
2387993814,21cyclictest24227-21cron21:00:011
2386993832,4cyclictest14329-21cron21:45:000
238699381,3cyclictest1303-21runrttasks22:07:570
238799378,27cyclictest0-21swapper/100:16:231
2387993732,3cyclictest25-21ksoftirqd/119:39:481
2386993731,4cyclictest9-21ksoftirqd/022:37:340
2386993720,4cyclictest9-21ksoftirqd/000:20:200
238699371,4cyclictest17393-21df21:50:140
238699371,4cyclictest12410-21hddtemp_smartct22:45:170
238799367,27cyclictest0-21swapper/119:50:321
2387993630,4cyclictest25-21ksoftirqd/123:10:581
2387993630,4cyclictest25-21ksoftirqd/123:10:581
2387993630,4cyclictest25-21ksoftirqd/120:43:581
2387993630,4cyclictest25-21ksoftirqd/119:34:381
2387993630,4cyclictest25-21ksoftirqd/119:28:001
2387993617,18cyclictest0-21swapper/100:20:431
2387993616,19cyclictest0-21swapper/123:00:531
2386993631,3cyclictest9-21ksoftirqd/022:42:340
2386993630,4cyclictest9-21ksoftirqd/023:59:020
2386993630,4cyclictest9-21ksoftirqd/020:58:420
238699360,3cyclictest31400-21runrttasks20:05:340
2387993530,3cyclictest25-21ksoftirqd/123:40:271
2387993529,4cyclictest25-21ksoftirqd/123:17:031
2387993529,4cyclictest25-21ksoftirqd/119:23:151
2386993530,3cyclictest9-21ksoftirqd/021:23:160
2386993530,3cyclictest9-21ksoftirqd/019:34:360
2386993529,4cyclictest9-21ksoftirqd/023:19:100
2386993529,4cyclictest9-21ksoftirqd/021:19:280
2386993529,4cyclictest9-21ksoftirqd/021:08:290
2386993529,4cyclictest9-21ksoftirqd/020:02:380
2386993528,4cyclictest9-21ksoftirqd/021:45:440
238799346,27cyclictest0-21swapper/122:45:531
238799346,26cyclictest0-21swapper/122:35:341
2387993429,3cyclictest25-21ksoftirqd/121:50:001
2387993429,3cyclictest25-21ksoftirqd/120:53:571
2387993428,4cyclictest25-21ksoftirqd/121:54:301
2387993428,4cyclictest25-21ksoftirqd/120:38:041
2387993428,4cyclictest25-21ksoftirqd/120:30:461
2387993428,4cyclictest25-21ksoftirqd/120:06:481
2387993428,4cyclictest25-21ksoftirqd/119:45:461
2387993428,4cyclictest25-21ksoftirqd/119:11:061
2387993428,4cyclictest25-21ksoftirqd/100:26:511
2387993428,4cyclictest25-21ksoftirqd/100:14:001
2387993422,10cyclictest25-21ksoftirqd/100:00:171
238799340,32cyclictest0-21swapper/122:05:541
2386993428,4cyclictest9-21ksoftirqd/022:18:050
2386993428,4cyclictest9-21ksoftirqd/021:01:070
2386993428,4cyclictest9-21ksoftirqd/020:34:390
2386993428,4cyclictest9-21ksoftirqd/000:25:060
2386993427,5cyclictest9-21ksoftirqd/023:41:450
2386993427,5cyclictest9-21ksoftirqd/022:27:340
2386993427,5cyclictest9-21ksoftirqd/019:28:440
238699341,3cyclictest3011-21meminfo23:30:200
2387993328,3cyclictest25-21ksoftirqd/119:15:111
2387993327,4cyclictest25-21ksoftirqd/123:23:291
2387993327,4cyclictest25-21ksoftirqd/122:41:201
2387993327,4cyclictest25-21ksoftirqd/122:22:141
2387993327,4cyclictest25-21ksoftirqd/122:15:361
2386993327,4cyclictest9-21ksoftirqd/023:50:110
2386993327,4cyclictest9-21ksoftirqd/023:21:150
2386993327,4cyclictest9-21ksoftirqd/023:07:060
2386993327,4cyclictest9-21ksoftirqd/022:52:510
2386993327,4cyclictest9-21ksoftirqd/021:34:270
2386993327,4cyclictest9-21ksoftirqd/020:48:230
2386993327,4cyclictest9-21ksoftirqd/020:48:220
2386993327,4cyclictest9-21ksoftirqd/020:38:240
2386993327,4cyclictest9-21ksoftirqd/019:23:060
2386993327,4cyclictest9-21ksoftirqd/000:19:320
2386993326,5cyclictest9-21ksoftirqd/000:10:330
2386993326,4cyclictest9-21ksoftirqd/022:55:400
238699330,5cyclictest5239-21grep21:25:160
2387993227,3cyclictest25-21ksoftirqd/122:13:031
2387993227,3cyclictest25-21ksoftirqd/121:37:331
2387993226,4cyclictest25-21ksoftirqd/123:29:431
2387993226,4cyclictest25-21ksoftirqd/122:26:241
2387993226,4cyclictest25-21ksoftirqd/100:32:321
2387993210,3cyclictest10138-21basename23:45:181
2386993227,3cyclictest9-21ksoftirqd/022:10:410
2386993227,3cyclictest9-21ksoftirqd/019:45:450
2386993227,3cyclictest9-21ksoftirqd/019:15:390
2386993227,3cyclictest9-21ksoftirqd/019:10:110
2386993227,3cyclictest9-21ksoftirqd/000:05:070
2386993226,4cyclictest9-21ksoftirqd/000:31:110
2386993226,4cyclictest9-21ksoftirqd/000:01:580
2386993217,4cyclictest9-21ksoftirqd/019:52:310
2387993126,3cyclictest25-21ksoftirqd/123:58:341
2387993126,3cyclictest25-21ksoftirqd/121:06:031
2387993125,4cyclictest25-21ksoftirqd/122:58:531
2387993125,4cyclictest25-21ksoftirqd/121:28:401
2387993110,3cyclictest17958-21sed20:45:211
2387993110,3cyclictest17958-21sed20:45:211
2386993126,3cyclictest9-21ksoftirqd/022:22:420
2386993126,3cyclictest9-21ksoftirqd/019:41:530
2386993125,4cyclictest9-21ksoftirqd/020:17:130
2386993125,4cyclictest9-21ksoftirqd/019:57:200
2386993125,4cyclictest9-21ksoftirqd/019:36:580
238699311,3cyclictest1-21systemd00:37:070
2387993025,3cyclictest25-21ksoftirqd/121:30:191
2387993024,4cyclictest25-21ksoftirqd/121:04:441
2387993024,4cyclictest25-21ksoftirqd/120:20:481
2387993024,4cyclictest25-21ksoftirqd/119:59:211
2386993024,4cyclictest9-21ksoftirqd/023:04:500
2386993024,4cyclictest9-21ksoftirqd/021:57:180
2386993024,4cyclictest9-21ksoftirqd/020:21:230
2386993012,15cyclictest777-21rt-features23:25:240
238699300,3cyclictest32738-21irqrtprio20:10:160
238699300,3cyclictest22512-21tune2fs22:00:160
2387992924,3cyclictest25-21ksoftirqd/121:58:231
2387992924,3cyclictest25-21ksoftirqd/120:26:501
2387992924,3cyclictest25-21ksoftirqd/120:18:171
2387992923,4cyclictest25-21ksoftirqd/121:24:591
2386992923,4cyclictest9-21ksoftirqd/021:39:370
238799289,4cyclictest1157-21mailstats21:15:251
2387992823,3cyclictest25-21ksoftirqd/100:36:531
238799281,2cyclictest0-21swapper/120:10:211
2386992812,14cyclictest30081-21df_abs21:10:140
238699280,3cyclictest5918-21readlink22:30:240
2387992721,4cyclictest25-21ksoftirqd/122:31:221
2387992721,4cyclictest25-21ksoftirqd/119:43:251
2387992712,3cyclictest14811-21fschecks_time22:50:151
2387992621,3cyclictest25-21ksoftirqd/120:03:391
2387992620,4cyclictest25-21ksoftirqd/123:52:251
2387991711,3cyclictest21862-21tr23:05:141
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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