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2026-04-11 - 04:23
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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 rackdslot3.osadl.org (updated Sat Apr 11, 2026 00:45:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
52752206172,22sleep10-21swapper/119:09:561
139491206172,23phc2sys0-21swapper/319:05:463
52802201168,22sleep00-21swapper/019:09:590
51822201169,21sleep20-21swapper/219:08:442
2652921590,4sleep3557799cyclictest23:15:153
528228262,11sleep20-21swapper/219:10:012
255482780,3sleep31306-21lldpd22:05:163
5575996733,4cyclictest25-21ksoftirqd/100:04:591
139391650,1ptp4l401ktimersoftd/300:17:333
5576996411,9cyclictest33-21ksoftirqd/221:34:592
5575996126,8cyclictest25-21ksoftirqd/100:15:241
5575996029,4cyclictest25-21ksoftirqd/120:10:241
5575996027,4cyclictest25-21ksoftirqd/120:40:231
5575996027,4cyclictest25-21ksoftirqd/119:50:271
5575996025,3cyclictest25-21ksoftirqd/120:50:111
5575995931,4cyclictest25-21ksoftirqd/123:45:261
5575995930,4cyclictest25-21ksoftirqd/119:30:181
5575995930,4cyclictest25-21ksoftirqd/119:30:181
5575995928,3cyclictest25-21ksoftirqd/121:25:141
5575995924,3cyclictest25-21ksoftirqd/120:05:221
5575995917,4cyclictest25-21ksoftirqd/121:40:251
5575995917,4cyclictest25-21ksoftirqd/121:40:251
5575995829,4cyclictest25-21ksoftirqd/120:20:171
5575995828,4cyclictest25-21ksoftirqd/119:25:171
5575995819,9cyclictest25-21ksoftirqd/100:35:161
5574995829,7cyclictest9-21ksoftirqd/019:15:250
5575995727,4cyclictest25-21ksoftirqd/122:50:261
5575995727,4cyclictest25-21ksoftirqd/100:30:001
5575995727,3cyclictest25-21ksoftirqd/122:25:141
5575995726,4cyclictest25-21ksoftirqd/120:35:111
5575995725,3cyclictest25-21ksoftirqd/121:10:171
5575995725,3cyclictest25-21ksoftirqd/121:10:171
5575995724,4cyclictest25-21ksoftirqd/122:35:151
5575995724,4cyclictest25-21ksoftirqd/120:55:191
5574995724,8cyclictest9-21ksoftirqd/021:50:210
5574995721,10cyclictest9-21ksoftirqd/020:00:000
139391570,1ptp4l401ktimersoftd/323:06:263
5575995625,4cyclictest25-21ksoftirqd/123:30:001
5575995624,4cyclictest25-21ksoftirqd/119:55:231
5575995623,3cyclictest25-21ksoftirqd/123:10:001
5575995623,3cyclictest25-21ksoftirqd/122:20:201
5574995626,6cyclictest9-21ksoftirqd/022:50:220
5574995623,7cyclictest9-21ksoftirqd/020:05:140
284772560,7sleep20-21swapper/200:25:192
5576995525,4cyclictest33-21ksoftirqd/223:10:262
5576995513,8cyclictest33-21ksoftirqd/220:35:002
5576995513,8cyclictest33-21ksoftirqd/220:35:002
5575995525,3cyclictest25-21ksoftirqd/121:25:011
5575995523,4cyclictest25-21ksoftirqd/121:30:151
5574995520,4cyclictest9-21ksoftirqd/000:30:010
139391550,1ptp4l401ktimersoftd/322:45:433
5576995431,5cyclictest33-21ksoftirqd/221:20:012
5575995433,3cyclictest25-21ksoftirqd/122:00:251
5575995424,4cyclictest25-21ksoftirqd/120:15:151
5575995424,4cyclictest25-21ksoftirqd/100:08:241
5575995424,3cyclictest25-21ksoftirqd/121:55:131
5575995423,3cyclictest25-21ksoftirqd/122:40:131
5575995419,9cyclictest25-21ksoftirqd/100:30:221
5577995323,4cyclictest41-21ksoftirqd/319:51:333
557699539,10cyclictest33-21ksoftirqd/222:40:132
139391530,1ptp4l401ktimersoftd/320:33:303
139391530,1ptp4l401ktimersoftd/320:33:293
5576995221,5cyclictest33-21ksoftirqd/223:30:202
5576995214,8cyclictest33-21ksoftirqd/220:05:152
5576995213,11cyclictest33-21ksoftirqd/220:00:232
5576995213,11cyclictest33-21ksoftirqd/220:00:232
557599523,2cyclictest121rcu_preempt23:40:001
5575995227,7cyclictest25-21ksoftirqd/123:55:121
5575995224,4cyclictest25-21ksoftirqd/119:10:181
5574995225,4cyclictest9-21ksoftirqd/021:10:260
5574995225,4cyclictest9-21ksoftirqd/021:10:260
5574995224,9cyclictest9-21ksoftirqd/021:05:000
5574995223,6cyclictest9-21ksoftirqd/000:05:180
5574995221,9cyclictest9-21ksoftirqd/022:15:140
5574995221,7cyclictest9-21ksoftirqd/022:05:150
5574995220,7cyclictest9-21ksoftirqd/022:25:010
5574995219,8cyclictest9-21ksoftirqd/021:05:150
5574995219,8cyclictest9-21ksoftirqd/020:00:160
5574995219,8cyclictest9-21ksoftirqd/020:00:160
5576995117,9cyclictest33-21ksoftirqd/220:15:182
5574995124,6cyclictest9-21ksoftirqd/023:40:270
5574995123,6cyclictest9-21ksoftirqd/022:12:290
5574995123,6cyclictest9-21ksoftirqd/022:12:290
5574995122,4cyclictest9-21ksoftirqd/000:35:250
5574995121,4cyclictest9-21ksoftirqd/022:55:210
5574995121,4cyclictest9-21ksoftirqd/020:40:190
139391510,1ptp4l21809-21sed19:40:253
557699509,4cyclictest33-21ksoftirqd/219:15:192
557699507,11cyclictest33-21ksoftirqd/219:50:002
5575995034,4cyclictest25-21ksoftirqd/121:20:011
5575995017,4cyclictest25-21ksoftirqd/119:35:211
5574995023,4cyclictest9-21ksoftirqd/021:45:210
5574995020,3cyclictest9-21ksoftirqd/000:15:140
5574995017,3cyclictest121rcu_preempt22:45:230
5574995014,4cyclictest9-21ksoftirqd/022:25:170
5576994924,18cyclictest33-21ksoftirqd/219:30:142
5576994924,18cyclictest33-21ksoftirqd/219:30:142
557699491,2cyclictest32358-21mailstats21:10:232
557699491,2cyclictest32358-21mailstats21:10:232
5576994912,5cyclictest33-21ksoftirqd/223:10:012
5575994936,6cyclictest25-21ksoftirqd/121:05:211
5575994933,4cyclictest25-21ksoftirqd/122:20:011
5574994935,4cyclictest9-21ksoftirqd/023:40:010
557499492,3cyclictest16491-21latency_hist20:40:000
5574994922,3cyclictest9-21ksoftirqd/023:10:160
5574994920,9cyclictest9-21ksoftirqd/000:30:250
5574994919,4cyclictest9-21ksoftirqd/023:30:250
5574994916,4cyclictest9-21ksoftirqd/021:55:240
5574994916,4cyclictest9-21ksoftirqd/021:35:220
5576994821,5cyclictest33-21ksoftirqd/220:35:182
5576994810,8cyclictest33-21ksoftirqd/220:00:002
5575994812,7cyclictest25-21ksoftirqd/123:20:131
5574994821,3cyclictest9-21ksoftirqd/020:25:230
5574994819,4cyclictest9-21ksoftirqd/020:20:250
5576994713,4cyclictest33-21ksoftirqd/223:35:132
5576994710,5cyclictest33-21ksoftirqd/222:15:152
5575994731,7cyclictest25-21ksoftirqd/121:00:171
5574994723,4cyclictest9-21ksoftirqd/023:05:230
5574994721,3cyclictest9-21ksoftirqd/023:50:200
5574994718,9cyclictest9-21ksoftirqd/022:40:000
5574994717,4cyclictest9-21ksoftirqd/021:25:230
5574994714,5cyclictest9-21ksoftirqd/022:35:000
5577994624,3cyclictest41-21ksoftirqd/319:57:053
5576994613,5cyclictest33-21ksoftirqd/220:45:182
557599467,7cyclictest25-21ksoftirqd/120:28:591
557599465,3cyclictest25-21ksoftirqd/119:40:271
5575994637,3cyclictest25-21ksoftirqd/100:20:131
557599463,2cyclictest25-21ksoftirqd/119:50:001
5575994632,6cyclictest25-21ksoftirqd/121:50:181
5574994633,4cyclictest9-21ksoftirqd/000:25:000
5574994620,4cyclictest9-21ksoftirqd/023:24:390
5574994614,3cyclictest121rcu_preempt19:11:290
5577994520,5cyclictest41-21ksoftirqd/321:35:153
557699459,10cyclictest33-21ksoftirqd/223:20:012
557699458,9cyclictest33-21ksoftirqd/220:25:132
557699457,8cyclictest33-21ksoftirqd/221:25:272
557699453,4cyclictest33-21ksoftirqd/220:55:172
5576994528,8cyclictest33-21ksoftirqd/223:55:242
5576994524,10cyclictest33-21ksoftirqd/222:10:172
5576994524,10cyclictest33-21ksoftirqd/222:10:172
5576994511,4cyclictest33-21ksoftirqd/222:25:222
5576994510,8cyclictest33-21ksoftirqd/223:45:532
557599454,3cyclictest25-21ksoftirqd/123:55:001
557599454,2cyclictest121rcu_preempt23:10:181
5575994534,3cyclictest25-21ksoftirqd/122:55:221
5575994531,4cyclictest25-21ksoftirqd/123:30:141
5575994529,4cyclictest25-21ksoftirqd/119:15:161
5574994532,3cyclictest9-21ksoftirqd/020:45:250
5574994527,5cyclictest9-21ksoftirqd/023:55:160
5574994523,9cyclictest9-21ksoftirqd/020:55:250
5574994518,3cyclictest9-21ksoftirqd/020:15:130
5577994427,2cyclictest13889-21irqrtprio19:25:193
557699449,7cyclictest33-21ksoftirqd/220:24:592
557699449,5cyclictest33-21ksoftirqd/221:45:152
557699447,8cyclictest33-21ksoftirqd/222:50:112
557699447,5cyclictest33-21ksoftirqd/219:55:002
557599446,6cyclictest25-21ksoftirqd/120:45:241
557599446,3cyclictest25-21ksoftirqd/121:35:251
557599441,7cyclictest25-21ksoftirqd/123:40:001
557599440,2cyclictest121rcu_preempt23:15:121
557499444,2cyclictest9-21ksoftirqd/019:35:200
557499442,2cyclictest16345-21ps00:00:200
5574994415,4cyclictest9-21ksoftirqd/019:30:220
5574994415,4cyclictest9-21ksoftirqd/019:30:220
5574994413,4cyclictest9-21ksoftirqd/019:40:140
557499441,2cyclictest9-21ksoftirqd/021:20:010
557799436,3cyclictest41-21ksoftirqd/323:00:273
557699438,10cyclictest33-21ksoftirqd/200:00:222
557699437,8cyclictest33-21ksoftirqd/220:50:112
557699434,7cyclictest33-21ksoftirqd/219:20:172
557699434,5cyclictest33-21ksoftirqd/221:20:222
5576994322,9cyclictest33-21ksoftirqd/222:05:232
5576994312,8cyclictest33-21ksoftirqd/223:00:152
557599431,2cyclictest121rcu_preempt22:05:261
5574994331,3cyclictest9-21ksoftirqd/019:50:000
5574994328,4cyclictest9-21ksoftirqd/019:25:140
5574994314,4cyclictest9-21ksoftirqd/020:50:240
5574994312,4cyclictest9-21ksoftirqd/019:20:250
557499430,3cyclictest121rcu_preempt21:30:280
5577994232,7cyclictest41-21ksoftirqd/322:10:123
5577994232,7cyclictest41-21ksoftirqd/322:10:123
557799420,4cyclictest696-21ps00:35:173
5576994231,9cyclictest33-21ksoftirqd/222:35:192
5576994215,8cyclictest33-21ksoftirqd/222:00:002
5576994213,4cyclictest33-21ksoftirqd/221:35:152
5576994212,11cyclictest33-21ksoftirqd/221:00:132
5576994210,8cyclictest33-21ksoftirqd/222:00:162
557599425,3cyclictest25-21ksoftirqd/119:20:201
557599424,2cyclictest121rcu_preempt00:10:281
557599424,2cyclictest121rcu_preempt00:10:281
557599423,2cyclictest25-21ksoftirqd/122:30:141
5575994229,3cyclictest25-21ksoftirqd/120:30:161
5575994229,3cyclictest25-21ksoftirqd/120:30:161
5575994215,4cyclictest25-21ksoftirqd/122:12:551
5575994215,4cyclictest25-21ksoftirqd/122:12:551
557599421,3cyclictest25-21ksoftirqd/121:49:141
5574994235,4cyclictest14108-21latency_hist20:35:000
5574994235,4cyclictest14108-21latency_hist20:35:000
5574994230,4cyclictest9-21ksoftirqd/021:40:120
5574994230,4cyclictest9-21ksoftirqd/021:40:110
5574994228,5cyclictest9-21ksoftirqd/022:40:150
557499421,3cyclictest121rcu_preempt21:20:220
557499421,2cyclictest121rcu_preempt23:20:010
557499421,2cyclictest121rcu_preempt20:10:240
557499420,3cyclictest121rcu_preempt23:45:140
557799413,2cyclictest121rcu_preempt19:20:253
557799411,2cyclictest0-21swapper/300:05:003
557699417,9cyclictest33-21ksoftirqd/221:50:242
557699415,18cyclictest33-21ksoftirqd/219:35:262
557699415,12cyclictest33-21ksoftirqd/223:20:012
557699413,8cyclictest33-21ksoftirqd/200:10:192
557699413,8cyclictest33-21ksoftirqd/200:10:192
5576994126,5cyclictest33-21ksoftirqd/220:10:192
5576994113,4cyclictest33-21ksoftirqd/200:30:212
5576994110,7cyclictest33-21ksoftirqd/222:46:152
5575994129,3cyclictest25-21ksoftirqd/120:05:011
5575994129,3cyclictest25-21ksoftirqd/120:05:001
557499413,5cyclictest121rcu_preempt00:10:220
557499413,5cyclictest121rcu_preempt00:10:220
5574994127,4cyclictest9-21ksoftirqd/019:50:160
557499410,3cyclictest121rcu_preempt23:25:130
139391410,0ptp4l401ktimersoftd/321:47:243
5577994035,3cyclictest41-21ksoftirqd/321:20:013
557799401,5cyclictest0-21swapper/300:05:293
557799401,3cyclictest121rcu_preempt22:50:183
557699408,4cyclictest33-21ksoftirqd/200:05:232
557699403,4cyclictest0-21swapper/222:21:082
557699403,10cyclictest33-21ksoftirqd/222:30:132
5576994022,10cyclictest33-21ksoftirqd/200:20:172
557599402,3cyclictest25-21ksoftirqd/122:46:561
5577993934,3cyclictest41-21ksoftirqd/319:50:003
5577993926,4cyclictest41-21ksoftirqd/321:32:503
5577993925,4cyclictest41-21ksoftirqd/319:35:273
5577993922,5cyclictest41-21ksoftirqd/320:40:193
557699399,8cyclictest33-21ksoftirqd/200:40:012
557699393,3cyclictest0-21swapper/223:26:472
557699393,3cyclictest0-21swapper/222:58:462
5576993925,3cyclictest33-21ksoftirqd/221:05:132
557699392,4cyclictest0-21swapper/219:42:342
5576993919,9cyclictest33-21ksoftirqd/200:15:262
557699391,11cyclictest33-21ksoftirqd/223:55:002
557599390,2cyclictest121rcu_preempt23:00:251
5574993929,4cyclictest9-21ksoftirqd/022:00:130
5574993923,5cyclictest9-21ksoftirqd/023:00:160
557799389,3cyclictest41-21ksoftirqd/321:55:273
557799386,3cyclictest41-21ksoftirqd/322:15:153
557799383,3cyclictest6383-21chrt22:31:303
5577993833,3cyclictest41-21ksoftirqd/323:59:593
557799382,5cyclictest5686-21systemctl23:40:003
557799381,3cyclictest121rcu_preempt19:30:113
557799381,3cyclictest121rcu_preempt19:30:113
557799381,10cyclictest41-21ksoftirqd/300:15:013
557799381,10cyclictest41-21ksoftirqd/300:15:013
557699384,5cyclictest33-21ksoftirqd/221:40:132
557699384,5cyclictest33-21ksoftirqd/221:40:132
557699381,9cyclictest33-21ksoftirqd/220:40:192
139391380,1ptp4l401ktimersoftd/321:06:253
557799374,3cyclictest10005-21taskset19:16:193
5577993733,2cyclictest41-21ksoftirqd/323:35:003
5577993732,3cyclictest41-21ksoftirqd/323:50:173
5577993732,3cyclictest41-21ksoftirqd/319:15:013
5577993731,4cyclictest41-21ksoftirqd/322:38:573
5577993724,3cyclictest41-21ksoftirqd/320:35:143
557799371,8cyclictest41-21ksoftirqd/320:05:263
5577993712,3cyclictest41-21ksoftirqd/320:50:203
5576993711,11cyclictest33-21ksoftirqd/219:25:182
5577993631,3cyclictest41-21ksoftirqd/321:50:133
5577993631,2cyclictest41-21ksoftirqd/320:45:133
5577993529,4cyclictest41-21ksoftirqd/320:01:563
5577993529,4cyclictest41-21ksoftirqd/320:01:553
5577993518,7cyclictest41-21ksoftirqd/320:20:193
557799350,6cyclictest32162-21chrt23:25:223
557799350,4cyclictest32724-21chrt21:10:403
557799350,4cyclictest32724-21chrt21:10:393
557699357,7cyclictest33-21ksoftirqd/223:40:272
5577993430,2cyclictest41-21ksoftirqd/323:40:133
5577993430,2cyclictest41-21ksoftirqd/321:25:273
5577993429,3cyclictest41-21ksoftirqd/323:20:203
5577993429,3cyclictest41-21ksoftirqd/322:05:003
5577993428,4cyclictest41-21ksoftirqd/321:23:443
557799332,9cyclictest31767-21unixbench_multi00:30:243
5577993328,3cyclictest41-21ksoftirqd/321:45:013
5577993328,3cyclictest41-21ksoftirqd/321:45:013
5577993327,3cyclictest41-21ksoftirqd/320:15:183
557799331,5cyclictest23891-21cpuspeed20:55:123
5577993229,2cyclictest41-21ksoftirqd/300:20:173
5577993228,2cyclictest41-21ksoftirqd/323:15:003
5577993228,2cyclictest41-21ksoftirqd/320:15:013
5577993227,3cyclictest41-21ksoftirqd/322:59:073
5577993226,4cyclictest41-21ksoftirqd/323:48:373
557799322,3cyclictest121rcu_preempt21:05:003
139391320,0ptp4l401ktimersoftd/322:44:423
5577993127,2cyclictest41-21ksoftirqd/322:25:193
5577993125,3cyclictest41-21ksoftirqd/322:20:073
5577993117,4cyclictest41-21ksoftirqd/300:25:223
557799310,2cyclictest0-21swapper/320:25:153
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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