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2026-05-19 - 09:02
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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 792 highest latencies:
System rackdslot2.osadl.org (updated Tue May 19, 2026 00:45:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
16322232166,23sleep00-21swapper/019:07:030
15262206172,22sleep20-21swapper/219:05:502
15272205171,22sleep30-21swapper/319:05:513
15042204170,22sleep10-21swapper/119:05:331
1013221620,8sleep3234799cyclictest23:55:103
2385821540,6sleep1234399cyclictest00:20:241
2385821540,6sleep1234399cyclictest00:20:231
186128363,11sleep30-21swapper/319:10:003
2347996225,10cyclictest41-21ksoftirqd/323:20:283
2347995727,7cyclictest41-21ksoftirqd/323:34:593
234399571,16cyclictest0-21swapper/120:45:011
234399571,16cyclictest0-21swapper/120:45:001
208802570,4sleep3234799cyclictest20:55:023
234399561,17cyclictest0-21swapper/122:15:161
2347995533,3cyclictest41-21ksoftirqd/321:40:223
234399553,16cyclictest2830-21sed22:30:251
234399553,16cyclictest2830-21sed22:30:251
2347995423,4cyclictest41-21ksoftirqd/321:35:233
234399540,15cyclictest0-21swapper/123:40:221
2347995322,7cyclictest41-21ksoftirqd/300:15:003
2347995321,4cyclictest41-21ksoftirqd/323:15:173
234399530,15cyclictest0-21swapper/120:30:141
2347995223,7cyclictest41-21ksoftirqd/320:55:013
2347995223,4cyclictest41-21ksoftirqd/323:05:273
234399523,15cyclictest8095-21basename21:35:171
2347995115,8cyclictest41-21ksoftirqd/321:15:203
234399513,15cyclictest5957-21http22:40:001
2347995022,3cyclictest41-21ksoftirqd/319:15:253
2347995022,3cyclictest41-21ksoftirqd/319:15:243
2347994923,7cyclictest41-21ksoftirqd/319:20:133
2347994923,7cyclictest41-21ksoftirqd/319:20:133
2347994922,7cyclictest41-21ksoftirqd/300:05:243
2347994921,7cyclictest41-21ksoftirqd/320:20:163
2347994920,10cyclictest41-21ksoftirqd/319:45:143
2347994919,7cyclictest41-21ksoftirqd/321:35:003
2347994919,4cyclictest41-21ksoftirqd/319:35:013
2347994918,8cyclictest41-21ksoftirqd/300:25:173
2347994917,4cyclictest41-21ksoftirqd/323:25:193
2347994910,9cyclictest41-21ksoftirqd/320:35:003
234399494,8cyclictest29452-21unixbench_singl23:25:261
234399493,16cyclictest7361-21cat21:35:001
234799489,7cyclictest41-21ksoftirqd/323:00:213
2347994819,4cyclictest41-21ksoftirqd/323:40:153
2347994818,4cyclictest41-21ksoftirqd/322:45:193
2347994818,4cyclictest41-21ksoftirqd/320:05:003
2347994817,4cyclictest41-21ksoftirqd/300:30:213
2347994817,3cyclictest41-21ksoftirqd/322:40:253
2347994816,8cyclictest41-21ksoftirqd/319:40:153
2347994816,4cyclictest41-21ksoftirqd/320:00:003
2347994814,9cyclictest41-21ksoftirqd/320:30:013
2347994810,8cyclictest41-21ksoftirqd/323:10:273
234399485,10cyclictest22240-21cat23:10:271
234399484,15cyclictest0-21swapper/122:55:161
234399483,9cyclictest28992-21grep22:20:111
234399480,15cyclictest0-21swapper/119:35:301
234799479,11cyclictest41-21ksoftirqd/300:20:263
234799479,11cyclictest41-21ksoftirqd/300:20:263
2347994720,9cyclictest41-21ksoftirqd/321:00:033
2347994720,3cyclictest41-21ksoftirqd/321:10:133
2347994719,7cyclictest41-21ksoftirqd/321:45:273
2347994719,7cyclictest41-21ksoftirqd/300:20:003
2347994717,7cyclictest41-21ksoftirqd/322:40:003
2347994716,8cyclictest41-21ksoftirqd/322:55:013
2347994713,3cyclictest41-21ksoftirqd/320:05:243
2347994713,10cyclictest41-21ksoftirqd/322:30:233
2347994713,10cyclictest41-21ksoftirqd/322:30:233
234399474,7cyclictest26952-21ptp4l21:05:241
234399473,16cyclictest31713-21grep23:30:251
234799469,6cyclictest41-21ksoftirqd/322:10:213
234799462,3cyclictest121rcu_preempt21:50:143
2347994619,4cyclictest41-21ksoftirqd/319:30:013
2347994618,3cyclictest41-21ksoftirqd/322:08:573
2347994616,8cyclictest41-21ksoftirqd/320:45:263
234799461,3cyclictest121rcu_preempt23:39:593
2347994613,4cyclictest41-21ksoftirqd/321:25:233
2347994610,4cyclictest41-21ksoftirqd/322:00:193
234799458,8cyclictest41-21ksoftirqd/321:55:223
2347994519,6cyclictest41-21ksoftirqd/320:15:253
2347994518,6cyclictest41-21ksoftirqd/300:00:233
2347994516,4cyclictest41-21ksoftirqd/321:09:273
2347994515,7cyclictest41-21ksoftirqd/320:14:593
2347994514,7cyclictest41-21ksoftirqd/319:50:193
2347994513,8cyclictest41-21ksoftirqd/323:50:203
2347994510,10cyclictest41-21ksoftirqd/321:20:183
234399454,9cyclictest10390-21fschecks_time21:40:151
234399454,8cyclictest7597-21diskstats19:20:151
234399454,8cyclictest7597-21diskstats19:20:151
234399454,7cyclictest7725-21mailstats22:40:221
234399454,15cyclictest26567-21cat00:25:241
234399452,10cyclictest2407-21apt-get19:10:111
234799449,8cyclictest41-21ksoftirqd/322:25:263
234799448,7cyclictest41-21ksoftirqd/322:20:143
2347994418,7cyclictest41-21ksoftirqd/320:35:173
2347994418,7cyclictest41-21ksoftirqd/320:35:173
2347994416,3cyclictest41-21ksoftirqd/300:39:073
234399444,7cyclictest25901-21hddtemp_smartct23:20:171
234399443,15cyclictest9855-21latency_hist23:55:011
234399443,10cyclictest8174-21http20:29:591
234399441,16cyclictest22677-21chrt20:55:401
2346994338,3cyclictest33-21ksoftirqd/222:40:012
234399433,8cyclictest17375-21python20:45:241
234399433,16cyclictest23076-21mailstats19:50:241
234399431,8cyclictest15902-21apt-get23:00:131
234399430,16cyclictest0-21swapper/120:20:111
2347994216,3cyclictest41-21ksoftirqd/322:16:283
234399424,7cyclictest27375-21irqstats20:00:181
234399423,7cyclictest17307-21cstates21:55:131
234399422,8cyclictest20909-21ls19:45:261
234799418,4cyclictest41-21ksoftirqd/323:45:173
2347994127,7cyclictest41-21ksoftirqd/319:35:223
234799411,6cyclictest121rcu_preempt22:55:223
2346994136,3cyclictest33-21ksoftirqd/200:40:012
2346994135,3cyclictest33-21ksoftirqd/221:00:002
234399412,8cyclictest10011-21ps22:45:231
2346994035,3cyclictest33-21ksoftirqd/200:00:002
234399404,6cyclictest790-21hddtemp_smartct23:35:151
234399402,14cyclictest0-21swapper/119:30:231
2347993934,3cyclictest41-21ksoftirqd/320:40:183
2347993934,3cyclictest41-21ksoftirqd/320:40:183
2346993933,4cyclictest33-21ksoftirqd/200:34:002
2342993935,3cyclictest9-21ksoftirqd/019:40:010
2346993832,4cyclictest33-21ksoftirqd/220:32:542
2346993732,3cyclictest33-21ksoftirqd/221:55:192
2346993731,4cyclictest33-21ksoftirqd/223:07:152
2346993731,4cyclictest33-21ksoftirqd/222:01:122
2346993731,4cyclictest33-21ksoftirqd/219:38:552
234399373,16cyclictest2696-21cat20:15:231
234399371,9cyclictest11083-21ps19:25:231
234399370,7cyclictest13701-21ls00:00:211
2342993733,2cyclictest9-21ksoftirqd/023:00:000
2342993731,4cyclictest9-21ksoftirqd/023:13:590
2342993731,4cyclictest9-21ksoftirqd/022:01:510
2342993731,4cyclictest9-21ksoftirqd/021:02:120
2342993731,4cyclictest9-21ksoftirqd/019:33:510
2342993731,4cyclictest9-21ksoftirqd/019:11:010
2346993631,3cyclictest33-21ksoftirqd/222:10:112
2346993631,3cyclictest33-21ksoftirqd/220:47:472
2346993630,4cyclictest33-21ksoftirqd/223:21:312
2346993630,4cyclictest33-21ksoftirqd/221:46:562
2346993630,4cyclictest33-21ksoftirqd/220:39:162
2346993630,4cyclictest33-21ksoftirqd/220:39:162
2346993630,4cyclictest33-21ksoftirqd/200:18:272
2346993630,3cyclictest33-21ksoftirqd/221:21:192
2342993631,3cyclictest9-21ksoftirqd/022:18:310
2342993631,3cyclictest9-21ksoftirqd/021:00:000
2342993630,4cyclictest9-21ksoftirqd/023:28:510
2342993630,4cyclictest9-21ksoftirqd/000:26:200
2346993530,3cyclictest33-21ksoftirqd/220:25:492
2346993530,3cyclictest33-21ksoftirqd/219:59:212
2346993530,3cyclictest33-21ksoftirqd/219:50:192
2346993530,3cyclictest33-21ksoftirqd/219:20:002
2346993530,3cyclictest33-21ksoftirqd/219:20:002
2346993530,3cyclictest33-21ksoftirqd/219:10:112
2346993530,3cyclictest33-21ksoftirqd/200:27:122
2346993529,4cyclictest33-21ksoftirqd/223:36:232
2346993529,4cyclictest33-21ksoftirqd/221:00:382
2346993529,4cyclictest33-21ksoftirqd/220:00:282
2346993529,4cyclictest33-21ksoftirqd/219:22:552
2346993529,4cyclictest33-21ksoftirqd/219:22:542
2346993529,3cyclictest33-21ksoftirqd/221:20:012
2346993523,11cyclictest33-21ksoftirqd/221:15:012
234399354,11cyclictest24029-21memory23:15:221
2343993529,4cyclictest25-21ksoftirqd/121:20:191
234399351,8cyclictest25710-21ls19:55:281
234399350,7cyclictest31057-21ps21:15:201
2342993530,2cyclictest9-21ksoftirqd/022:25:190
2342993529,4cyclictest9-21ksoftirqd/023:44:520
2342993529,4cyclictest9-21ksoftirqd/023:05:480
2342993529,4cyclictest9-21ksoftirqd/022:38:410
2342993529,4cyclictest9-21ksoftirqd/021:53:040
2342993529,4cyclictest9-21ksoftirqd/020:54:270
2342993529,4cyclictest9-21ksoftirqd/020:45:370
2342993529,4cyclictest9-21ksoftirqd/020:04:560
2342993529,4cyclictest9-21ksoftirqd/019:55:290
2342993529,4cyclictest9-21ksoftirqd/019:49:360
2346993429,3cyclictest33-21ksoftirqd/222:06:582
2346993429,3cyclictest33-21ksoftirqd/221:38:372
2346993429,3cyclictest33-21ksoftirqd/220:11:232
2346993429,3cyclictest33-21ksoftirqd/219:46:432
2346993428,4cyclictest33-21ksoftirqd/222:57:282
2346993428,4cyclictest33-21ksoftirqd/222:33:022
2346993428,4cyclictest33-21ksoftirqd/222:33:022
2346993428,4cyclictest33-21ksoftirqd/222:25:322
2346993428,4cyclictest33-21ksoftirqd/220:18:512
2346993426,6cyclictest33-21ksoftirqd/222:41:372
234399343,11cyclictest17620-21iostat_ios19:40:191
234399343,10cyclictest19797-21apt-get00:15:031
2343993429,3cyclictest25-21ksoftirqd/120:10:121
2343993428,4cyclictest25-21ksoftirqd/121:49:151
2343993428,4cyclictest25-21ksoftirqd/100:07:111
2342993430,3cyclictest9-21ksoftirqd/020:36:520
2342993430,3cyclictest9-21ksoftirqd/020:36:520
2342993429,3cyclictest9-21ksoftirqd/021:30:090
2342993428,4cyclictest9-21ksoftirqd/023:35:090
2342993428,4cyclictest9-21ksoftirqd/022:53:410
2342993428,4cyclictest9-21ksoftirqd/021:39:190
2342993428,4cyclictest9-21ksoftirqd/000:11:160
2342993428,3cyclictest9-21ksoftirqd/023:50:000
2346993328,3cyclictest33-21ksoftirqd/223:18:472
2346993328,3cyclictest33-21ksoftirqd/222:46:532
2346993328,3cyclictest33-21ksoftirqd/222:15:362
2346993328,3cyclictest33-21ksoftirqd/221:33:292
2346993328,3cyclictest33-21ksoftirqd/221:28:132
2346993328,3cyclictest33-21ksoftirqd/220:24:202
2346993328,3cyclictest33-21ksoftirqd/200:10:202
2346993327,4cyclictest33-21ksoftirqd/223:45:142
2346993327,4cyclictest33-21ksoftirqd/223:26:282
2346993327,3cyclictest33-21ksoftirqd/220:50:142
2346993322,9cyclictest33-21ksoftirqd/221:05:142
2343993328,3cyclictest25-21ksoftirqd/119:19:201
2343993328,3cyclictest25-21ksoftirqd/119:19:201
2343993327,4cyclictest25-21ksoftirqd/123:07:431
2343993327,4cyclictest25-21ksoftirqd/121:02:221
2343993327,4cyclictest25-21ksoftirqd/100:34:431
2343993326,4cyclictest25-21ksoftirqd/123:46:101
2342993328,3cyclictest9-21ksoftirqd/023:57:150
2342993328,3cyclictest9-21ksoftirqd/023:31:240
2342993328,3cyclictest9-21ksoftirqd/021:40:270
2342993328,3cyclictest9-21ksoftirqd/000:33:540
2342993327,4cyclictest9-21ksoftirqd/022:34:000
2342993327,4cyclictest9-21ksoftirqd/022:34:000
2342993327,4cyclictest9-21ksoftirqd/021:48:310
2342993327,4cyclictest9-21ksoftirqd/020:22:180
2342993327,4cyclictest9-21ksoftirqd/019:26:000
2342993327,4cyclictest9-21ksoftirqd/019:23:490
2342993327,4cyclictest9-21ksoftirqd/019:23:490
2342993327,4cyclictest9-21ksoftirqd/000:07:390
2346993228,3cyclictest33-21ksoftirqd/200:00:202
2346993227,3cyclictest33-21ksoftirqd/223:52:422
2346993227,3cyclictest33-21ksoftirqd/222:50:182
2346993227,3cyclictest33-21ksoftirqd/219:42:162
2346993227,3cyclictest33-21ksoftirqd/200:25:002
2346993227,3cyclictest33-21ksoftirqd/200:25:002
2346993227,3cyclictest33-21ksoftirqd/200:05:202
2346993227,3cyclictest21613-21kworker/2:023:10:272
234399324,14cyclictest29337-21hddtemp_smartct20:05:161
2343993226,4cyclictest25-21ksoftirqd/100:11:401
2342993228,3cyclictest9-21ksoftirqd/023:00:190
2342993228,3cyclictest9-21ksoftirqd/021:20:010
2342993227,3cyclictest9-21ksoftirqd/022:07:270
2342993227,3cyclictest9-21ksoftirqd/021:25:360
2342993227,3cyclictest9-21ksoftirqd/020:40:120
2342993227,3cyclictest9-21ksoftirqd/020:40:110
2342993227,3cyclictest9-21ksoftirqd/000:21:020
2342993227,3cyclictest9-21ksoftirqd/000:21:020
2342993226,4cyclictest9-21ksoftirqd/022:22:080
2342993226,4cyclictest9-21ksoftirqd/020:30:320
2342993226,3cyclictest9-21ksoftirqd/019:50:190
2346993126,3cyclictest33-21ksoftirqd/223:34:312
2346993126,3cyclictest33-21ksoftirqd/221:50:132
2346993126,3cyclictest33-21ksoftirqd/219:31:042
2346993125,4cyclictest33-21ksoftirqd/223:42:372
2346993125,4cyclictest33-21ksoftirqd/222:21:422
2342993126,3cyclictest9-21ksoftirqd/021:20:120
2342993126,3cyclictest9-21ksoftirqd/020:11:070
2342993126,3cyclictest9-21ksoftirqd/020:08:040
2342993126,2cyclictest9-21ksoftirqd/023:15:150
2342993125,4cyclictest9-21ksoftirqd/021:07:220
2342993123,5cyclictest9-21ksoftirqd/020:15:120
2346993024,4cyclictest33-21ksoftirqd/220:05:022
2346993024,4cyclictest33-21ksoftirqd/219:27:552
2343993025,3cyclictest25-21ksoftirqd/120:36:431
2343993025,3cyclictest25-21ksoftirqd/120:36:431
234399300,2cyclictest121rcu_preempt23:58:361
2342993025,3cyclictest9-21ksoftirqd/021:14:440
2342993025,3cyclictest9-21ksoftirqd/020:30:010
2342993024,3cyclictest9-21ksoftirqd/000:15:200
2346992924,3cyclictest33-21ksoftirqd/223:04:002
234399294,16cyclictest4176-21systemctl21:25:221
2343992924,3cyclictest25-21ksoftirqd/122:05:491
2343992924,3cyclictest25-21ksoftirqd/100:35:111
2343992923,4cyclictest25-21ksoftirqd/122:10:421
2343992923,4cyclictest25-21ksoftirqd/122:00:061
2342992924,3cyclictest9-21ksoftirqd/023:23:050
2342992924,3cyclictest9-21ksoftirqd/019:18:070
2342992924,3cyclictest9-21ksoftirqd/019:18:070
2342992924,3cyclictest9-21ksoftirqd/000:35:040
2343992822,4cyclictest25-21ksoftirqd/121:12:361
2342992823,3cyclictest9-21ksoftirqd/021:59:060
2342992822,4cyclictest9-21ksoftirqd/022:46:520
2342992822,3cyclictest9-21ksoftirqd/019:40:140
2346992722,3cyclictest33-21ksoftirqd/221:41:492
2343992722,3cyclictest25-21ksoftirqd/122:26:571
234399271,16cyclictest0-21swapper/122:50:231
234399270,16cyclictest0-21swapper/121:50:151
2342992721,4cyclictest9-21ksoftirqd/022:13:450
2346992621,3cyclictest33-21ksoftirqd/220:40:132
2346992621,3cyclictest33-21ksoftirqd/220:40:132
2343992621,3cyclictest25-21ksoftirqd/120:54:351
2342992620,4cyclictest9-21ksoftirqd/022:41:100
2342992620,4cyclictest9-21ksoftirqd/000:00:080
2342992520,3cyclictest9-21ksoftirqd/023:55:000
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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