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2026-06-27 - 16:17
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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 rackdslot3.osadl.org (updated Sat Jun 27, 2026 12:45:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139491229164,22phc2sys0-21swapper/307:06:453
140942226198,19sleep10-21swapper/107:09:591
138782204171,22sleep00-21swapper/007:07:160
138502204171,22sleep20-21swapper/207:06:542
170521700,6sleep31439199cyclictest12:20:143
70721550,6sleep11438999cyclictest10:00:261
14389997315,9cyclictest15579-21awk08:20:001
14391997121,5cyclictest41-21ksoftirqd/312:25:153
14391997028,9cyclictest41-21ksoftirqd/310:00:133
14389997012,12cyclictest26348-21latency_hist12:05:011
14389997012,11cyclictest22791-21dpkg10:49:591
14389997011,12cyclictest10421-21fschecks_count09:15:151
14391996929,9cyclictest41-21ksoftirqd/307:30:003
14389996913,11cyclictest5955-21dpkg08:00:001
14389996912,12cyclictest6191-21cat12:30:001
14389996912,12cyclictest15570-21sed09:25:201
14391996825,4cyclictest41-21ksoftirqd/311:30:213
14389996814,11cyclictest20013-21tune2fs09:35:171
14389996814,10cyclictest23166-21mailstats11:55:251
14389996812,12cyclictest31801-21cut07:45:181
14389996812,12cyclictest19140-21apt-config11:50:011
14389996812,12cyclictest19140-21apt-config11:50:011
14388996835,4cyclictest9-21ksoftirqd/009:20:000
14389996712,11cyclictest2780-21grep11:15:131
14389996712,11cyclictest22914-21latency_hist08:35:001
14388996732,4cyclictest9-21ksoftirqd/011:55:000
14388996732,4cyclictest9-21ksoftirqd/008:35:000
14391996620,9cyclictest41-21ksoftirqd/311:45:183
14391996620,9cyclictest41-21ksoftirqd/311:45:173
14389996611,19cyclictest0-21swapper/107:20:181
14389996611,17cyclictest0-21swapper/110:30:191
14389996611,16cyclictest13452-21grep11:35:251
14389996610,19cyclictest0-21swapper/109:55:251
14391996531,7cyclictest41-21ksoftirqd/309:20:233
1438999659,20cyclictest0-21swapper/110:15:141
1438999659,20cyclictest0-21swapper/110:15:141
1438999659,17cyclictest0-21swapper/110:50:251
14389996512,11cyclictest26462-21ls09:50:001
14389996510,17cyclictest0-21swapper/108:05:271
1438999649,18cyclictest0-21swapper/110:35:151
1438999649,16cyclictest0-21swapper/110:40:241
14389996414,10cyclictest2812-21sed07:50:241
14389996413,12cyclictest11221-21grep08:10:141
14389996413,10cyclictest32453-21cat11:10:011
14389996413,10cyclictest27505-21cut09:50:191
14389996412,18cyclictest30832-21awk07:44:591
14389996412,11cyclictest27073-21cut07:35:201
14389996411,19cyclictest26189-21latency_hist07:35:011
14389996411,11cyclictest28626-21irqrtprio11:00:191
14389996411,10cyclictest23549-21fschecks_count08:35:171
14389996410,18cyclictest0-21swapper/108:20:191
14389996410,16cyclictest0-21swapper/111:40:191
1438999639,18cyclictest0-21swapper/112:35:271
1438999639,17cyclictest0-21swapper/109:10:261
14389996315,8cyclictest11075-21gzip11:30:261
14389996313,9cyclictest3610-21latency_hist10:10:001
14389996313,11cyclictest9338-21sed10:20:161
14389996310,18cyclictest0-21swapper/112:15:011
14389996310,17cyclictest0-21swapper/112:30:231
14389996310,16cyclictest0-21swapper/108:00:011
14388996319,10cyclictest9-21ksoftirqd/010:45:190
1438999629,16cyclictest0-21swapper/107:25:251
14389996213,11cyclictest518-21unixbench_multi12:15:271
14389996212,15cyclictest12865-21fschecks_time09:20:171
14389996212,10cyclictest17205-21fschecks_count07:15:151
14389996211,19cyclictest2917-21timerandwakeup12:20:241
14389996211,11cyclictest22201-21df_abs09:40:141
14389996211,11cyclictest12586-21timerwakeupswit10:25:281
14389996210,17cyclictest0-21swapper/108:55:251
14388996226,7cyclictest9-21ksoftirqd/007:44:590
14390996128,8cyclictest33-21ksoftirqd/209:00:142
14390996126,4cyclictest33-21ksoftirqd/210:40:002
14389996115,10cyclictest8369-21sed11:25:211
14389996114,17cyclictest19883-21grep11:50:131
14389996113,18cyclictest27736-21wc11:00:011
14389996113,18cyclictest27736-21wc11:00:011
14389996113,11cyclictest5165-21grep11:20:151
14389996112,11cyclictest26281-21sed08:40:201
14389996112,10cyclictest3874-21cpu10:10:121
14389996111,16cyclictest2799-21rm09:00:021
14389996111,10cyclictest31351-21needreboot08:50:231
14389996110,10cyclictest16545-21latency_hist07:15:011
14388996128,6cyclictest9-21ksoftirqd/011:30:290
14388996127,5cyclictest9-21ksoftirqd/011:40:000
14388996127,5cyclictest9-21ksoftirqd/007:50:160
14391996029,7cyclictest41-21ksoftirqd/308:50:273
14389996013,17cyclictest26730-21expr12:05:151
14391995926,4cyclictest41-21ksoftirqd/309:15:013
14391995925,3cyclictest41-21ksoftirqd/312:00:223
14389995912,8cyclictest17500-21df_abs09:30:131
14389995912,16cyclictest20546-21latency_hist08:30:001
14388995927,8cyclictest9-21ksoftirqd/009:45:000
14388995926,5cyclictest9-21ksoftirqd/011:10:000
14388995925,6cyclictest9-21ksoftirqd/010:55:000
14388995924,7cyclictest9-21ksoftirqd/008:00:000
14390995822,7cyclictest33-21ksoftirqd/210:05:242
14389995812,15cyclictest674-21if_enp1s011:10:181
14388995827,5cyclictest9-21ksoftirqd/008:15:130
14388995825,4cyclictest9-21ksoftirqd/009:00:000
14388995824,6cyclictest9-21ksoftirqd/010:05:270
14388995824,4cyclictest9-21ksoftirqd/011:55:240
14391995722,8cyclictest41-21ksoftirqd/310:49:593
14390995723,7cyclictest33-21ksoftirqd/210:15:272
14390995723,7cyclictest33-21ksoftirqd/210:15:272
14389995713,16cyclictest6338-21sed09:05:211
14388995725,6cyclictest9-21ksoftirqd/007:35:010
14388995724,5cyclictest9-21ksoftirqd/012:00:250
14388995723,6cyclictest9-21ksoftirqd/009:20:160
14391995625,4cyclictest41-21ksoftirqd/310:05:133
14390995628,4cyclictest33-21ksoftirqd/211:35:132
14390995621,7cyclictest33-21ksoftirqd/208:00:002
14389995611,15cyclictest29325-21switchtime08:45:261
14388995628,4cyclictest9-21ksoftirqd/009:05:130
14388995625,5cyclictest9-21ksoftirqd/009:05:000
14388995624,5cyclictest9-21ksoftirqd/010:10:150
14388995624,5cyclictest9-21ksoftirqd/009:55:270
14388995623,6cyclictest9-21ksoftirqd/011:50:010
14388995623,6cyclictest9-21ksoftirqd/011:50:010
14388995623,3cyclictest9-21ksoftirqd/007:35:160
14388995622,8cyclictest9-21ksoftirqd/012:20:130
14388995622,10cyclictest9-21ksoftirqd/009:10:170
14388995621,5cyclictest9-21ksoftirqd/008:55:000
14388995621,10cyclictest9-21ksoftirqd/012:30:000
14391995523,9cyclictest41-21ksoftirqd/311:00:273
14390995523,4cyclictest33-21ksoftirqd/209:50:272
14390995517,16cyclictest33-21ksoftirqd/208:25:012
14388995529,2cyclictest9-21ksoftirqd/010:35:140
14388995527,7cyclictest9-21ksoftirqd/011:00:000
14388995527,7cyclictest9-21ksoftirqd/011:00:000
14388995523,5cyclictest9-21ksoftirqd/010:25:150
14388995522,6cyclictest9-21ksoftirqd/009:50:000
14388995522,4cyclictest9-21ksoftirqd/009:35:000
14388995521,5cyclictest9-21ksoftirqd/007:15:010
14391995429,3cyclictest41-21ksoftirqd/309:55:383
14391995429,3cyclictest41-21ksoftirqd/309:40:273
14391995426,4cyclictest41-21ksoftirqd/307:55:253
14390995420,5cyclictest33-21ksoftirqd/211:55:192
14390995413,15cyclictest33-21ksoftirqd/210:50:002
14388995424,6cyclictest9-21ksoftirqd/008:05:140
14388995424,4cyclictest9-21ksoftirqd/010:40:230
14388995423,6cyclictest9-21ksoftirqd/011:30:010
14388995421,5cyclictest9-21ksoftirqd/012:15:170
14388995419,5cyclictest9-21ksoftirqd/010:30:130
14388995417,7cyclictest9-21ksoftirqd/011:40:220
14391995333,4cyclictest41-21ksoftirqd/309:35:003
14391995326,5cyclictest41-21ksoftirqd/309:20:003
14391995318,4cyclictest41-21ksoftirqd/309:00:123
14390995344,3cyclictest33-21ksoftirqd/209:15:002
14390995323,3cyclictest33-21ksoftirqd/209:50:002
14390995319,8cyclictest33-21ksoftirqd/212:10:192
14390995316,14cyclictest33-21ksoftirqd/208:45:212
14388995335,5cyclictest9-21ksoftirqd/011:20:010
14388995329,6cyclictest9-21ksoftirqd/007:45:160
14388995323,7cyclictest9-21ksoftirqd/007:20:270
14388995322,5cyclictest9-21ksoftirqd/012:30:200
14388995321,7cyclictest9-21ksoftirqd/008:00:240
1439199526,3cyclictest41-21ksoftirqd/312:10:013
14391995228,4cyclictest41-21ksoftirqd/312:40:013
14391995225,7cyclictest41-21ksoftirqd/308:45:183
1439099525,6cyclictest27639-21awk08:45:002
14390995220,7cyclictest33-21ksoftirqd/207:30:152
14390995219,4cyclictest33-21ksoftirqd/211:10:202
14390995218,7cyclictest33-21ksoftirqd/212:25:162
14390995217,5cyclictest33-21ksoftirqd/209:55:212
14390995212,4cyclictest33-21ksoftirqd/210:20:122
14388995232,9cyclictest9-21ksoftirqd/007:20:000
14388995222,6cyclictest9-21ksoftirqd/010:15:140
14388995222,6cyclictest9-21ksoftirqd/010:15:140
14388995221,6cyclictest9-21ksoftirqd/011:10:150
14388995221,4cyclictest9-21ksoftirqd/010:00:130
14388995220,6cyclictest9-21ksoftirqd/012:40:000
14388995220,4cyclictest9-21ksoftirqd/008:20:170
14388995218,7cyclictest9-21ksoftirqd/008:25:270
14391995130,10cyclictest41-21ksoftirqd/307:20:133
14391995125,3cyclictest41-21ksoftirqd/307:15:003
14391995122,10cyclictest41-21ksoftirqd/310:10:133
14391995121,4cyclictest41-21ksoftirqd/308:25:173
14391995117,8cyclictest41-21ksoftirqd/308:35:253
14390995122,3cyclictest33-21ksoftirqd/207:40:142
14390995119,7cyclictest33-21ksoftirqd/208:35:292
14390995117,9cyclictest33-21ksoftirqd/210:40:192
14390995117,7cyclictest33-21ksoftirqd/210:55:192
14390995117,7cyclictest33-21ksoftirqd/210:55:182
14390995117,7cyclictest33-21ksoftirqd/210:50:282
14390995117,4cyclictest33-21ksoftirqd/207:30:012
14390995116,7cyclictest33-21ksoftirqd/212:00:192
14388995133,5cyclictest9-21ksoftirqd/011:20:160
14388995131,9cyclictest9-21ksoftirqd/012:10:200
14388995121,4cyclictest9-21ksoftirqd/009:35:140
14388995119,4cyclictest9-21ksoftirqd/008:10:250
14391995038,2cyclictest41-21ksoftirqd/310:20:173
14391995018,7cyclictest41-21ksoftirqd/311:20:163
14391995018,4cyclictest41-21ksoftirqd/309:10:003
14390995018,7cyclictest33-21ksoftirqd/211:10:012
14390995016,8cyclictest33-21ksoftirqd/208:05:152
14390995016,7cyclictest33-21ksoftirqd/209:40:192
14388995032,5cyclictest9-21ksoftirqd/012:05:230
14388995023,7cyclictest9-21ksoftirqd/011:00:170
14388995022,4cyclictest9-21ksoftirqd/008:35:150
14388995021,6cyclictest9-21ksoftirqd/008:40:170
14388995021,3cyclictest9-21ksoftirqd/009:25:160
14388995015,4cyclictest9-21ksoftirqd/010:23:180
131412500,2sleep20-21swapper/210:30:012
1439199497,6cyclictest41-21ksoftirqd/308:00:163
1439199496,2cyclictest121rcu_preempt10:35:273
14391994912,7cyclictest41-21ksoftirqd/308:55:113
14390994917,7cyclictest33-21ksoftirqd/211:45:272
14390994917,7cyclictest33-21ksoftirqd/211:45:272
14390994916,8cyclictest33-21ksoftirqd/211:25:172
14390994916,7cyclictest33-21ksoftirqd/208:10:142
14390994915,6cyclictest33-21ksoftirqd/211:22:112
14390994915,5cyclictest33-21ksoftirqd/207:15:132
14390994915,4cyclictest33-21ksoftirqd/212:35:272
14390994914,7cyclictest33-21ksoftirqd/209:15:142
14390994911,4cyclictest33-21ksoftirqd/209:05:202
14388994919,5cyclictest9-21ksoftirqd/009:50:270
1439199487,5cyclictest41-21ksoftirqd/309:25:253
1439199487,2cyclictest41-21ksoftirqd/307:40:133
1439199485,6cyclictest41-21ksoftirqd/311:15:013
1439199485,6cyclictest41-21ksoftirqd/310:45:003
1439199485,2cyclictest41-21ksoftirqd/311:05:283
1439199485,2cyclictest41-21ksoftirqd/308:15:253
14391994834,3cyclictest41-21ksoftirqd/310:55:003
14391994833,3cyclictest41-21ksoftirqd/307:52:593
14390994817,7cyclictest33-21ksoftirqd/211:50:252
14390994816,4cyclictest33-21ksoftirqd/212:10:002
14390994816,11cyclictest33-21ksoftirqd/210:10:252
14390994815,7cyclictest33-21ksoftirqd/209:35:182
14390994813,4cyclictest33-21ksoftirqd/211:30:152
14388994832,4cyclictest9-21ksoftirqd/007:25:170
14388994829,8cyclictest9-21ksoftirqd/008:45:190
1439199479,7cyclictest41-21ksoftirqd/311:55:203
1439199470,6cyclictest41-21ksoftirqd/308:45:003
14390994718,4cyclictest33-21ksoftirqd/212:20:182
14390994716,4cyclictest33-21ksoftirqd/207:45:132
1439199465,2cyclictest41-21ksoftirqd/308:25:003
1439199464,2cyclictest41-21ksoftirqd/312:15:233
14391994632,3cyclictest41-21ksoftirqd/311:15:153
14391994628,5cyclictest41-21ksoftirqd/311:25:143
14391994617,4cyclictest41-21ksoftirqd/309:35:003
1439199461,2cyclictest121rcu_preempt10:20:003
1439199461,2cyclictest121rcu_preempt10:20:003
14390994617,3cyclictest33-21ksoftirqd/210:35:002
1439099461,5cyclictest8402-21sshd12:30:482
1439099460,3cyclictest121rcu_preempt12:20:002
1439199455,5cyclictest41-21ksoftirqd/307:15:133
1439199455,2cyclictest41-21ksoftirqd/308:30:273
1439199454,7cyclictest121rcu_preempt11:35:133
14391994532,3cyclictest41-21ksoftirqd/310:30:143
14391994530,4cyclictest41-21ksoftirqd/309:45:243
14391994528,6cyclictest41-21ksoftirqd/307:45:213
14391994517,6cyclictest41-21ksoftirqd/309:50:223
1439099450,5cyclictest121rcu_preempt08:30:012
1439199444,2cyclictest121rcu_preempt08:05:143
14391994429,4cyclictest41-21ksoftirqd/310:55:203
14391994429,4cyclictest41-21ksoftirqd/310:55:203
1439199442,5cyclictest41-21ksoftirqd/311:40:183
1439199442,2cyclictest121rcu_preempt11:50:233
14391994418,8cyclictest41-21ksoftirqd/308:10:223
1439099442,3cyclictest33-21ksoftirqd/210:00:132
14390994417,3cyclictest33-21ksoftirqd/207:50:262
14390994413,4cyclictest33-21ksoftirqd/209:25:142
14390994412,7cyclictest33-21ksoftirqd/208:17:302
1439199436,3cyclictest41-21ksoftirqd/307:30:203
1439199433,3cyclictest121rcu_preempt10:25:183
14391994332,2cyclictest41-21ksoftirqd/307:35:223
1439199431,2cyclictest121rcu_preempt12:30:163
1439099433,3cyclictest121rcu_preempt11:15:242
1439099430,4cyclictest207-21systemd-journal11:40:362
14391994228,3cyclictest41-21ksoftirqd/312:10:163
14390994227,4cyclictest33-21ksoftirqd/211:00:252
14390994227,4cyclictest33-21ksoftirqd/207:10:162
1439099421,6cyclictest121rcu_preempt08:03:422
14390994213,3cyclictest33-21ksoftirqd/207:39:502
1439099421,2cyclictest121rcu_preempt07:20:272
1439099420,4cyclictest22861-21sh08:35:002
14390994126,3cyclictest33-21ksoftirqd/209:30:172
1439099402,5cyclictest121rcu_preempt08:55:172
14390994011,4cyclictest33-21ksoftirqd/209:20:152
1439099400,2cyclictest121rcu_preempt08:50:232
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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