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2026-09-09 - 12:36
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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 Wed Sep 09, 2026 00:45:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139591231166,52phc2sys0-21swapper/319:07:583
305302206172,22sleep00-21swapper/019:06:010
306582205174,20sleep20-21swapper/219:07:362
305752205171,22sleep10-21swapper/119:06:291
3051521500,3sleep23113699cyclictest22:30:172
31136998331,4cyclictest33-21ksoftirqd/219:20:252
139291830,1ptp4l20231-21ptp4l23:15:243
31136997422,10cyclictest33-21ksoftirqd/223:50:192
31136997224,10cyclictest33-21ksoftirqd/222:25:162
31136997128,5cyclictest33-21ksoftirqd/223:20:282
31135997011,12cyclictest15476-21latency_hist19:44:591
31136996925,4cyclictest33-21ksoftirqd/223:45:262
31136996920,9cyclictest33-21ksoftirqd/223:05:182
31135996914,10cyclictest20237-21/usr/sbin/munin22:10:121
31135996813,12cyclictest18070-21/usr/sbin/munin22:05:131
31136996726,9cyclictest33-21ksoftirqd/221:40:102
31135996712,11cyclictest28262-21wc22:25:201
31134996727,4cyclictest9-21ksoftirqd/020:25:000
31135996611,11cyclictest5769-21cat19:25:011
31135996610,11cyclictest20335-21ptp4l-jitter21:00:251
31135996510,11cyclictest25413-21sed21:10:281
139291650,1ptp4l401ktimersoftd/322:31:343
31136996429,5cyclictest33-21ksoftirqd/200:10:152
31136996428,4cyclictest33-21ksoftirqd/200:05:212
31136996427,5cyclictest33-21ksoftirqd/221:10:242
31136996424,10cyclictest33-21ksoftirqd/200:20:222
31136996331,5cyclictest33-21ksoftirqd/223:55:182
31136996328,5cyclictest33-21ksoftirqd/219:15:152
31136996327,5cyclictest33-21ksoftirqd/221:55:262
31136996227,5cyclictest33-21ksoftirqd/222:55:002
31136996227,5cyclictest33-21ksoftirqd/219:35:142
31136996226,9cyclictest33-21ksoftirqd/221:35:232
3113599627,11cyclictest1425-21sh23:45:181
31135996212,9cyclictest11789-21cut21:50:241
31135996211,11cyclictest12838-21chrt19:39:521
31136996124,5cyclictest33-21ksoftirqd/220:55:142
31135996112,11cyclictest10470-21latency_hist21:50:001
31135996111,10cyclictest15151-21cat00:15:001
31134996126,8cyclictest9-21ksoftirqd/023:45:190
31134996125,4cyclictest9-21ksoftirqd/020:15:250
31136996026,5cyclictest33-21ksoftirqd/221:30:182
31136996025,5cyclictest33-21ksoftirqd/220:35:142
31136996022,12cyclictest33-21ksoftirqd/220:00:142
3113599609,12cyclictest8273-21latency_hist19:30:001
3113599609,11cyclictest22110-21irqrtprio21:05:191
3113599608,10cyclictest25459-21cstates00:35:141
31135996013,12cyclictest31209-21/usr/sbin/munin21:25:131
31135996013,11cyclictest32316-21/usr/sbin/munin19:10:241
31135996011,17cyclictest23443-21cut22:15:201
31135996011,11cyclictest28906-21cpuspeed_turbos21:20:151
31135996010,11cyclictest6634-21sed21:40:171
31135996010,11cyclictest25607-21sed22:20:191
31134996030,4cyclictest9-21ksoftirqd/020:49:590
31134996029,4cyclictest9-21ksoftirqd/022:50:290
31134996026,7cyclictest9-21ksoftirqd/019:40:180
31134996023,4cyclictest9-21ksoftirqd/020:05:010
31136995930,6cyclictest33-21ksoftirqd/220:19:412
31136995924,5cyclictest33-21ksoftirqd/223:30:212
31136995918,9cyclictest33-21ksoftirqd/219:30:132
3113599599,12cyclictest30635-21sed20:15:191
31135995911,11cyclictest11422-21date22:59:591
31135995911,11cyclictest11246-21sed00:05:191
31135995911,10cyclictest8775-21runrttasks20:35:271
31135995910,12cyclictest24072-21ps20:00:251
31135995910,11cyclictest13071-21/usr/sbin/munin20:45:241
31134995923,4cyclictest9-21ksoftirqd/021:55:290
31134995920,7cyclictest9-21ksoftirqd/019:55:250
31136995823,4cyclictest33-21ksoftirqd/222:35:222
3113599589,11cyclictest19188-21strings19:50:231
3113599589,11cyclictest19188-21strings19:50:221
31135995813,11cyclictest8083-21pluginstate22:50:261
31135995811,18cyclictest15108-21cut20:50:201
31135995811,11cyclictest2938-21sed22:40:211
31135995811,11cyclictest19798-21cut23:15:201
31134995826,9cyclictest9-21ksoftirqd/019:50:120
31134995826,9cyclictest9-21ksoftirqd/019:50:120
31134995824,4cyclictest9-21ksoftirqd/022:55:140
31136995724,9cyclictest33-21ksoftirqd/219:55:172
3113599579,9cyclictest8749-21sh19:30:151
31135995710,19cyclictest3801-21sed21:35:151
31135995710,12cyclictest28006-21tune2fs20:10:171
31134995730,8cyclictest9-21ksoftirqd/023:15:030
31134995722,4cyclictest9-21ksoftirqd/023:45:010
139291570,1ptp4l401ktimersoftd/321:25:013
31136995623,4cyclictest33-21ksoftirqd/219:25:212
31135995611,11cyclictest13899-21sed21:55:211
31135995610,11cyclictest2547-21cstates20:25:151
31137995514,5cyclictest41-21ksoftirqd/322:20:003
31136995526,4cyclictest33-21ksoftirqd/221:50:192
31136995523,9cyclictest33-21ksoftirqd/221:09:502
31136995521,4cyclictest33-21ksoftirqd/220:20:192
31136995516,5cyclictest33-21ksoftirqd/220:05:272
3113599559,11cyclictest16812-21sed00:15:251
3113599556,16cyclictest0-21swapper/123:40:221
3113599556,16cyclictest0-21swapper/123:40:221
31135995514,10cyclictest21931-21/usr/sbin/munin19:55:261
31135995511,12cyclictest15445-21ls23:05:241
31135995511,11cyclictest217-21systemd-journal00:04:191
31135995511,11cyclictest1571-21taskset21:30:201
31134995524,7cyclictest9-21ksoftirqd/021:35:140
31134995524,4cyclictest9-21ksoftirqd/022:35:130
31136995431,3cyclictest33-21ksoftirqd/223:10:242
31136995424,4cyclictest33-21ksoftirqd/222:10:242
31136995418,8cyclictest33-21ksoftirqd/220:40:202
31136995418,6cyclictest33-21ksoftirqd/200:30:022
31136995416,7cyclictest33-21ksoftirqd/223:40:242
31136995416,7cyclictest33-21ksoftirqd/223:40:232
3113599548,11cyclictest2065-21latency_hist20:25:001
31135995410,18cyclictest10911-21systemctl20:40:251
31135995410,16cyclictest31979-21cut22:35:011
31135995410,12cyclictest27516-21cut20:10:011
31135995410,11cyclictest28688-21sed21:19:591
3113499545,7cyclictest9-21ksoftirqd/021:30:170
3113799537,3cyclictest41-21ksoftirqd/321:05:243
3113699533,7cyclictest33-21ksoftirqd/200:15:202
31136995321,3cyclictest33-21ksoftirqd/220:50:472
3113599539,10cyclictest26523-21grep23:30:161
31135995311,16cyclictest17517-21awk23:10:211
31135995310,9cyclictest18115-21ls20:55:261
31135995310,12cyclictest18005-21df00:20:141
31134995323,3cyclictest9-21ksoftirqd/021:10:170
266902530,4sleep03113499cyclictest20:05:250
113742530,3sleep311346-21latency_hist22:59:593
3113699525,7cyclictest33-21ksoftirqd/221:20:302
31136995232,3cyclictest33-21ksoftirqd/222:45:222
31136995226,4cyclictest33-21ksoftirqd/223:00:202
31136995218,5cyclictest33-21ksoftirqd/223:25:182
31136995217,5cyclictest33-21ksoftirqd/219:40:132
3113699521,6cyclictest33-21ksoftirqd/200:00:232
3113599529,11cyclictest4710-21cstates22:45:121
31135995210,17cyclictest23875-21sort00:30:211
31135995210,12cyclictest1890-21sed22:40:011
3113499525,10cyclictest9-21ksoftirqd/023:15:000
31134995220,5cyclictest9-21ksoftirqd/000:30:290
31134995217,4cyclictest9-21ksoftirqd/022:30:000
3113499520,12cyclictest9-21ksoftirqd/020:55:210
173942520,2sleep30-21swapper/320:55:203
3113699519,2cyclictest33-21ksoftirqd/222:15:042
3113699514,6cyclictest33-21ksoftirqd/222:55:242
31136995126,4cyclictest33-21ksoftirqd/220:10:172
31136995123,9cyclictest33-21ksoftirqd/221:15:152
3113699510,5cyclictest0-21swapper/200:39:592
3113599519,7cyclictest20210-21apt-config00:25:011
31135995110,11cyclictest15549-21apt-config19:45:001
3113499514,8cyclictest9-21ksoftirqd/023:55:000
3113499513,6cyclictest217-21systemd-journal00:20:010
3113499512,7cyclictest9-21ksoftirqd/000:35:170
3113499511,6cyclictest9-21ksoftirqd/000:10:280
31134995116,5cyclictest9-21ksoftirqd/020:41:450
3113699504,4cyclictest33-21ksoftirqd/220:45:152
31136995028,4cyclictest33-21ksoftirqd/219:55:002
31136995028,4cyclictest33-21ksoftirqd/219:55:002
31136995018,4cyclictest33-21ksoftirqd/219:45:262
3113599509,11cyclictest17020-21sed22:00:271
31135995010,11cyclictest6282-21sed23:55:181
3113499503,5cyclictest12113-21sed21:50:260
31134995033,5cyclictest9-21ksoftirqd/021:05:140
3113699494,5cyclictest33-21ksoftirqd/223:35:252
3113699494,5cyclictest33-21ksoftirqd/223:35:252
3113699493,7cyclictest33-21ksoftirqd/220:25:252
3113699493,6cyclictest33-21ksoftirqd/222:00:252
3113699492,6cyclictest33-21ksoftirqd/222:40:222
3113699491,6cyclictest33-21ksoftirqd/223:15:252
31135994910,11cyclictest24593-21sed23:25:191
3113499496,4cyclictest9-21ksoftirqd/000:05:150
3113499495,7cyclictest9-21ksoftirqd/021:15:150
3113499494,8cyclictest9-21ksoftirqd/000:25:250
31134994934,3cyclictest9-21ksoftirqd/022:20:140
3113499492,6cyclictest9-21ksoftirqd/000:00:000
31134994912,3cyclictest9-21ksoftirqd/019:25:200
3113699486,5cyclictest33-21ksoftirqd/222:20:232
3113699485,7cyclictest121rcu_preempt22:05:192
3113699484,8cyclictest33-21ksoftirqd/221:49:592
3113699483,8cyclictest33-21ksoftirqd/221:25:202
31136994829,4cyclictest33-21ksoftirqd/200:25:022
3113599489,14cyclictest30000-21ls23:35:271
3113599489,14cyclictest30000-21ls23:35:271
31135994810,11cyclictest22232-21cut23:20:211
31134994836,3cyclictest9-21ksoftirqd/021:44:590
3113499482,7cyclictest9-21ksoftirqd/020:25:200
3113499482,6cyclictest217-21systemd-journal20:15:000
31134994822,4cyclictest9-21ksoftirqd/023:35:010
31137994714,4cyclictest41-21ksoftirqd/320:10:243
3113699477,6cyclictest33-21ksoftirqd/221:00:252
3113699475,7cyclictest33-21ksoftirqd/220:30:162
3113499477,7cyclictest9-21ksoftirqd/023:45:010
3113499474,6cyclictest9-21ksoftirqd/022:20:010
3113499474,4cyclictest9-21ksoftirqd/019:37:200
3113499473,6cyclictest9-21ksoftirqd/022:30:170
3113499472,2cyclictest121rcu_preempt00:20:170
3113499471,7cyclictest9-21ksoftirqd/021:00:140
3113499471,2cyclictest121rcu_preempt19:15:190
3113699462,8cyclictest33-21ksoftirqd/219:10:182
3113599469,11cyclictest4746-21cat23:50:261
3113599469,11cyclictest1323-21cstates19:15:161
31135994613,10cyclictest4703-21acpi20:30:121
3113499465,3cyclictest9-21ksoftirqd/023:20:290
3113499462,10cyclictest9-21ksoftirqd/019:10:180
3113499461,9cyclictest9-21ksoftirqd/022:05:170
3113499461,9cyclictest9-21ksoftirqd/020:30:220
3113499461,9cyclictest9-21ksoftirqd/000:00:260
3113499460,7cyclictest9-21ksoftirqd/022:45:230
3113499460,7cyclictest9-21ksoftirqd/021:25:220
3113499460,6cyclictest9-21ksoftirqd/023:05:000
31137994541,2cyclictest41-21ksoftirqd/300:20:003
31137994540,3cyclictest41-21ksoftirqd/321:19:593
3113799452,2cyclictest121rcu_preempt23:45:213
3113499453,8cyclictest9-21ksoftirqd/021:45:220
3113499451,8cyclictest9-21ksoftirqd/021:20:150
3113499451,6cyclictest9-21ksoftirqd/020:50:260
3113799448,4cyclictest41-21ksoftirqd/300:05:193
3113499444,4cyclictest9-21ksoftirqd/023:10:010
31134994439,2cyclictest101ktimersoftd/020:40:000
31134994428,4cyclictest9-21ksoftirqd/022:44:590
3113499441,8cyclictest9-21ksoftirqd/023:35:180
3113499441,8cyclictest9-21ksoftirqd/023:35:180
3113499440,6cyclictest9-21ksoftirqd/019:45:200
31137994339,2cyclictest41-21ksoftirqd/321:24:593
31137994338,3cyclictest41-21ksoftirqd/300:30:013
31137994331,3cyclictest41-21ksoftirqd/321:30:233
31137994314,3cyclictest41-21ksoftirqd/300:10:163
31137994312,4cyclictest41-21ksoftirqd/323:50:173
31137994310,4cyclictest41-21ksoftirqd/320:25:273
31134994330,4cyclictest9-21ksoftirqd/023:25:270
3113499430,8cyclictest9-21ksoftirqd/022:10:260
3113499430,3cyclictest121rcu_preempt19:30:270
139291430,0ptp4l401ktimersoftd/322:40:333
31137994237,3cyclictest41-21ksoftirqd/321:40:003
31137994237,3cyclictest41-21ksoftirqd/320:10:013
31137994237,3cyclictest41-21ksoftirqd/320:05:013
3113499422,7cyclictest121rcu_preempt22:00:240
139291420,34ptp4l0-21swapper/319:10:013
139291420,0ptp4l401ktimersoftd/319:43:393
3113799418,6cyclictest41-21ksoftirqd/323:20:273
31137994137,2cyclictest41-21ksoftirqd/322:54:593
31137994135,3cyclictest41-21ksoftirqd/321:10:203
31137994128,4cyclictest41-21ksoftirqd/319:15:273
31137994128,3cyclictest41-21ksoftirqd/323:30:243
31137994126,4cyclictest41-21ksoftirqd/322:20:053
31137994110,4cyclictest41-21ksoftirqd/320:15:183
3113799410,3cyclictest23689-21apt-get23:25:133
3113499410,6cyclictest9-21ksoftirqd/019:20:180
139291410,1ptp4l401ktimersoftd/322:00:103
139291410,0ptp4l401ktimersoftd/319:48:043
31137994036,2cyclictest41-21ksoftirqd/321:59:593
31137994034,3cyclictest41-21ksoftirqd/319:20:263
31137994027,4cyclictest41-21ksoftirqd/300:30:013
3113799400,5cyclictest121rcu_preempt23:15:003
3113799400,4cyclictest41-21ksoftirqd/322:45:203
31137993935,2cyclictest41-21ksoftirqd/320:00:013
31137993934,2cyclictest41-21ksoftirqd/321:40:173
31137993928,9cyclictest41-21ksoftirqd/323:40:253
31137993928,9cyclictest41-21ksoftirqd/323:40:253
31137993926,3cyclictest41-21ksoftirqd/320:40:163
3113799391,6cyclictest121rcu_preempt00:00:123
3113799391,5cyclictest121rcu_preempt21:55:003
3113799391,5cyclictest121rcu_preempt20:50:193
3113799389,7cyclictest41-21ksoftirqd/323:55:133
31137993833,3cyclictest41-21ksoftirqd/300:20:213
31137993833,2cyclictest41-21ksoftirqd/323:00:123
31137993827,9cyclictest41-21ksoftirqd/319:30:243
31137993825,3cyclictest41-21ksoftirqd/319:50:253
31137993825,3cyclictest41-21ksoftirqd/319:50:253
3113799382,2cyclictest121rcu_preempt19:30:003
3113799373,4cyclictest41-21ksoftirqd/323:05:243
31137993733,3cyclictest41-21ksoftirqd/322:10:003
31137993733,2cyclictest41-21ksoftirqd/322:10:123
31137993733,2cyclictest41-21ksoftirqd/320:35:143
31137993733,2cyclictest41-21ksoftirqd/319:35:193
31137993731,4cyclictest41-21ksoftirqd/322:37:013
31137993731,3cyclictest41-21ksoftirqd/320:20:163
31137993724,3cyclictest41-21ksoftirqd/320:30:123
3113799370,2cyclictest0-21swapper/321:00:133
3113599377,8cyclictest0-21swapper/123:00:191
3113799365,3cyclictest41-21ksoftirqd/322:25:183
3113799364,3cyclictest41-21ksoftirqd/323:35:233
3113799364,3cyclictest41-21ksoftirqd/323:35:233
3113799364,3cyclictest41-21ksoftirqd/300:35:183
31137993631,3cyclictest41-21ksoftirqd/320:45:213
31137993428,4cyclictest41-21ksoftirqd/321:50:003
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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