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2026-09-09 - 12:21
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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 376 highest latencies:
System rackdslot4.osadl.org (updated Wed Sep 09, 2026 00:45:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
138591213167,35phc2sys0-21swapper/319:05:053
170632207173,23sleep20-21swapper/219:08:452
149422202168,23sleep10-21swapper/119:05:111
169522200167,22sleep00-21swapper/019:07:190
138491810,1ptp4l391rcuc/321:25:153
17453997037,2cyclictest41-21ksoftirqd/322:10:023
17453996826,9cyclictest41-21ksoftirqd/320:20:243
1745199664,17cyclictest7068-21idleruntime-cro21:00:011
1745199655,11cyclictest14598-21cron00:30:011
1745199644,11cyclictest27085-21idleruntime-cro23:49:591
17450996434,4cyclictest9-21ksoftirqd/021:05:010
17450996328,6cyclictest9-21ksoftirqd/023:50:190
302892620,3sleep30-21swapper/322:50:183
17453996229,4cyclictest41-21ksoftirqd/320:00:143
17453996128,4cyclictest41-21ksoftirqd/320:50:013
1745199613,16cyclictest21056-21sort22:30:181
17450996128,6cyclictest9-21ksoftirqd/020:35:000
17450996128,4cyclictest9-21ksoftirqd/022:00:010
1745199602,12cyclictest1783-21cat21:54:591
17450996026,5cyclictest9-21ksoftirqd/000:35:240
1745199595,11cyclictest28377-21cut19:30:181
1745199594,11cyclictest26896-21latency_hist21:40:001
1745199593,18cyclictest32741-21df_abs22:55:141
1745199593,18cyclictest32741-21df_abs22:55:141
1745199593,12cyclictest27246-21latency_hist20:35:001
1745199593,12cyclictest23592-21sort22:35:201
1745199593,11cyclictest29517-21latency_hist23:55:001
17450995936,3cyclictest9-21ksoftirqd/021:40:230
17450995927,6cyclictest9-21ksoftirqd/023:40:000
17450995927,4cyclictest9-21ksoftirqd/023:35:000
134991590,9getstats0-21swapper/300:10:223
1745199582,12cyclictest9932-21tr21:05:121
1745199582,10cyclictest28229-21tail21:40:191
17450995830,4cyclictest9-21ksoftirqd/020:55:000
17450995828,5cyclictest9-21ksoftirqd/019:55:220
17450995827,4cyclictest9-21ksoftirqd/000:30:200
17450995824,5cyclictest9-21ksoftirqd/022:50:210
78892570,3sleep20-21swapper/219:55:142
17453995728,7cyclictest41-21ksoftirqd/319:30:143
17453995726,8cyclictest41-21ksoftirqd/322:40:143
17453995726,8cyclictest41-21ksoftirqd/300:20:143
17453995724,4cyclictest41-21ksoftirqd/320:30:153
17453995721,4cyclictest41-21ksoftirqd/300:25:143
1745199573,12cyclictest28657-21phc2sys22:45:211
1745199573,11cyclictest10827-21sed22:10:181
1745199572,12cyclictest30869-21latency19:35:191
1745199572,11cyclictest7978-21cut22:05:181
1745199572,11cyclictest7371-21sed00:15:001
1745199572,11cyclictest32140-21latency_hist22:55:001
1745199572,10cyclictest13271-21cut23:20:211
1745199571,11cyclictest17896-21cut21:20:211
17450995733,6cyclictest9-21ksoftirqd/020:15:240
17450995728,5cyclictest9-21ksoftirqd/022:15:260
17450995727,6cyclictest9-21ksoftirqd/021:15:180
17450995726,7cyclictest9-21ksoftirqd/021:10:130
17450995724,5cyclictest9-21ksoftirqd/023:25:010
17450995718,8cyclictest9-21ksoftirqd/020:35:240
17450995718,8cyclictest9-21ksoftirqd/020:35:240
17453995626,9cyclictest41-21ksoftirqd/320:10:253
1745199562,9cyclictest19752-21sed20:20:001
1745199562,12cyclictest24173-21sed20:25:271
17453995525,9cyclictest41-21ksoftirqd/321:55:153
1745199553,10cyclictest27713-21df_abs20:35:141
1745199553,10cyclictest27713-21df_abs20:35:141
1745199552,17cyclictest766-21cut19:40:211
1745199552,11cyclictest3869-21expr23:00:231
1745199552,11cyclictest2996-21irqrtprio21:55:201
1745199551,12cyclictest12022-21latency_hist23:20:011
1745199551,10cyclictest2562-21cstates00:05:141
17450995526,5cyclictest9-21ksoftirqd/021:05:170
17450995526,5cyclictest9-21ksoftirqd/020:00:150
17450995525,6cyclictest9-21ksoftirqd/021:45:180
17450995524,5cyclictest9-21ksoftirqd/023:25:140
17450995523,6cyclictest9-21ksoftirqd/019:50:220
17450995522,5cyclictest9-21ksoftirqd/020:45:160
172222550,2sleep30-21swapper/300:35:013
17453995423,7cyclictest41-21ksoftirqd/319:10:173
17453995422,8cyclictest41-21ksoftirqd/319:40:203
17453995422,4cyclictest41-21ksoftirqd/320:40:243
17453995420,9cyclictest41-21ksoftirqd/321:40:003
1745199543,9cyclictest11432-21grep00:20:251
1745199542,17cyclictest728-21irqrtprio20:45:201
1745199542,12cyclictest22073-21date21:30:001
1745199542,11cyclictest24808-21date23:44:591
1745199542,11cyclictest17911-21sed22:25:141
1745199542,11cyclictest15420-21sed21:15:201
1745199541,18cyclictest15738-21cut00:30:181
1745199541,17cyclictest23231-21cat21:30:241
1745199541,16cyclictest7604-21cpu19:55:131
1745199541,11cyclictest8840-21cat21:00:261
1745199541,11cyclictest20800-21sed23:35:191
1745199541,10cyclictest5259-21df_abs19:50:151
1745199541,10cyclictest11683-21sed20:00:271
17450995421,6cyclictest9-21ksoftirqd/019:35:240
17450995419,6cyclictest9-21ksoftirqd/023:00:270
17450995419,6cyclictest9-21ksoftirqd/023:00:010
17450995419,6cyclictest9-21ksoftirqd/023:00:000
1745399534,8cyclictest41-21ksoftirqd/323:25:003
1745399534,2cyclictest121rcu_preempt00:40:013
17453995325,4cyclictest41-21ksoftirqd/321:55:003
17453995319,8cyclictest41-21ksoftirqd/322:30:183
17453995317,8cyclictest41-21ksoftirqd/320:15:113
1745199535,11cyclictest24722-21latency_hist19:25:001
1745199532,17cyclictest719-21irqrtprio00:00:191
1745199532,17cyclictest18097-21irqrtprio00:35:201
1745199532,11cyclictest30040-21fschecks_time21:45:151
1745199532,11cyclictest13408-21sed22:15:211
1745199531,12cyclictest15317-21df_abs20:10:151
1745199531,10cyclictest20205-21cstates19:15:151
17450995328,6cyclictest9-21ksoftirqd/022:30:180
17450995328,16cyclictest9-21ksoftirqd/000:15:010
17450995325,5cyclictest9-21ksoftirqd/021:30:160
17450995324,5cyclictest9-21ksoftirqd/020:10:000
17450995323,5cyclictest9-21ksoftirqd/019:15:200
17450995323,3cyclictest9-21ksoftirqd/019:10:200
17450995322,6cyclictest9-21ksoftirqd/000:20:210
17450995319,5cyclictest9-21ksoftirqd/019:40:200
17450995319,4cyclictest9-21ksoftirqd/022:45:130
135191530,1getstats0-21swapper/322:48:573
1745399526,3cyclictest41-21ksoftirqd/320:00:003
17453995223,8cyclictest41-21ksoftirqd/321:40:213
17453995221,4cyclictest41-21ksoftirqd/323:00:133
1745199524,18cyclictest18755-21awk19:10:231
1745199522,11cyclictest7793-21expr00:15:141
1745199522,11cyclictest2435-21taskset19:45:101
1745199521,10cyclictest6958-21latency_hist22:05:011
1745199521,10cyclictest16161-21processes22:20:231
17450995223,5cyclictest9-21ksoftirqd/022:00:190
17450995223,5cyclictest9-21ksoftirqd/000:25:240
17450995220,6cyclictest9-21ksoftirqd/020:44:590
17450995220,5cyclictest9-21ksoftirqd/019:30:000
17450995220,5cyclictest9-21ksoftirqd/000:05:210
17450995219,5cyclictest9-21ksoftirqd/022:35:130
322392510,4sleep01745099cyclictest00:00:120
1745399517,2cyclictest41-21ksoftirqd/320:55:243
1745399516,9cyclictest41-21ksoftirqd/320:50:133
1745399515,9cyclictest41-21ksoftirqd/320:30:003
17453995127,6cyclictest41-21ksoftirqd/322:20:283
17453995125,7cyclictest41-21ksoftirqd/322:25:133
17453995123,8cyclictest41-21ksoftirqd/321:05:213
17453995122,8cyclictest41-21ksoftirqd/319:25:203
1745399512,10cyclictest41-21ksoftirqd/321:15:153
17453995120,3cyclictest41-21ksoftirqd/319:46:313
1745199513,11cyclictest27297-21sed22:44:591
1745199513,10cyclictest13284-21irqrtprio20:05:191
1745199512,17cyclictest31227-21mailstats23:55:231
1745199512,15cyclictest5660-21irqrtprio23:05:181
1745199512,11cyclictest27277-21sed19:30:001
1745199511,8cyclictest12442-21expr21:10:141
1745199511,18cyclictest17037-21cat23:30:001
17450995124,5cyclictest9-21ksoftirqd/000:15:250
17450995122,4cyclictest9-21ksoftirqd/020:25:160
17450995121,4cyclictest9-21ksoftirqd/021:55:000
17450995119,3cyclictest9-21ksoftirqd/020:25:000
1745399507,5cyclictest41-21ksoftirqd/321:45:243
1745399505,2cyclictest41-21ksoftirqd/320:05:283
1745399504,7cyclictest41-21ksoftirqd/300:20:013
17453995022,7cyclictest41-21ksoftirqd/323:10:203
17453995019,7cyclictest41-21ksoftirqd/323:35:003
1745399501,5cyclictest41-21ksoftirqd/322:15:163
1745299505,7cyclictest33-21ksoftirqd/220:45:002
1745199502,12cyclictest31283-21sensors20:40:241
1745199501,11cyclictest21663-21cat20:20:261
1745099504,2cyclictest121rcu_preempt23:15:010
1745099502,6cyclictest9-21ksoftirqd/022:40:150
17450995022,4cyclictest9-21ksoftirqd/021:35:140
17450995016,5cyclictest9-21ksoftirqd/021:25:120
1745399496,3cyclictest41-21ksoftirqd/323:34:593
1745399495,7cyclictest41-21ksoftirqd/323:55:163
1745399494,8cyclictest41-21ksoftirqd/321:30:293
1745399494,7cyclictest41-21ksoftirqd/323:15:263
1745399494,7cyclictest41-21ksoftirqd/322:00:013
17453994924,7cyclictest41-21ksoftirqd/322:35:233
17453994922,7cyclictest41-21ksoftirqd/320:35:133
17453994922,7cyclictest41-21ksoftirqd/320:35:133
17453994921,6cyclictest41-21ksoftirqd/321:00:173
17453994919,4cyclictest41-21ksoftirqd/321:10:143
17453994918,8cyclictest41-21ksoftirqd/300:05:183
17453994918,4cyclictest41-21ksoftirqd/323:25:133
1745399491,7cyclictest41-21ksoftirqd/319:55:013
17453994917,8cyclictest41-21ksoftirqd/323:05:223
17453994917,7cyclictest41-21ksoftirqd/319:20:213
1745399491,2cyclictest121rcu_preempt19:15:263
17450994936,6cyclictest9-21ksoftirqd/023:45:000
17450994920,5cyclictest9-21ksoftirqd/023:10:010
17450994919,5cyclictest9-21ksoftirqd/020:10:270
1745399487,5cyclictest41-21ksoftirqd/322:10:013
1745399485,7cyclictest41-21ksoftirqd/323:50:133
1745399482,7cyclictest41-21ksoftirqd/323:41:203
17453994818,8cyclictest41-21ksoftirqd/321:20:203
17452994812,5cyclictest33-21ksoftirqd/220:10:002
17450994835,4cyclictest9-21ksoftirqd/021:00:010
17450994833,3cyclictest9-21ksoftirqd/022:30:000
17450994831,5cyclictest9-21ksoftirqd/019:20:220
17450994817,5cyclictest9-21ksoftirqd/023:50:010
1745099481,5cyclictest9-21ksoftirqd/023:20:010
1745099480,7cyclictest31425-1kworker/0:2H22:15:010
1745399472,7cyclictest41-21ksoftirqd/300:00:193
1745399472,3cyclictest121rcu_preempt19:40:003
1745299475,4cyclictest33-21ksoftirqd/221:20:002
17450994717,4cyclictest9-21ksoftirqd/023:55:190
95432460,4sleep29544-21cron23:15:012
1745199461,17cyclictest9050-21cat23:10:261
17450994613,4cyclictest9-21ksoftirqd/022:20:240
17450994612,4cyclictest9-21ksoftirqd/021:20:150
1745399453,7cyclictest41-21ksoftirqd/323:45:143
1745399452,6cyclictest41-21ksoftirqd/322:55:143
1745399452,6cyclictest41-21ksoftirqd/322:55:133
1745099452,5cyclictest9-21ksoftirqd/019:30:180
1745099452,2cyclictest9-21ksoftirqd/022:10:010
1745099451,5cyclictest9-21ksoftirqd/019:45:110
17452994438,3cyclictest33-21ksoftirqd/221:15:002
17452994337,3cyclictest33-21ksoftirqd/222:54:592
17452994237,3cyclictest33-21ksoftirqd/200:35:002
17452994220,3cyclictest33-21ksoftirqd/200:20:162
17452994213,3cyclictest33-21ksoftirqd/223:50:272
17452994210,4cyclictest33-21ksoftirqd/221:00:012
1745299418,9cyclictest33-21ksoftirqd/219:45:112
1745299417,8cyclictest33-21ksoftirqd/219:35:132
17452994135,3cyclictest33-21ksoftirqd/200:00:202
1745299413,3cyclictest33-21ksoftirqd/220:45:212
17452994036,2cyclictest33-21ksoftirqd/200:00:002
17452994035,3cyclictest33-21ksoftirqd/223:35:002
17452994034,3cyclictest33-21ksoftirqd/222:35:002
17452994026,6cyclictest33-21ksoftirqd/221:30:162
1745299396,7cyclictest33-21ksoftirqd/222:40:262
1745299395,5cyclictest33-21ksoftirqd/219:25:202
17452993935,2cyclictest33-21ksoftirqd/223:00:002
17452993935,2cyclictest33-21ksoftirqd/223:00:002
17452993934,3cyclictest33-21ksoftirqd/223:20:012
17452993934,3cyclictest33-21ksoftirqd/220:25:002
1745299390,5cyclictest121rcu_preempt21:50:212
1745299390,2cyclictest121rcu_preempt22:40:002
1745299386,7cyclictest33-21ksoftirqd/223:45:002
1745299386,3cyclictest33-21ksoftirqd/222:20:252
1745299385,7cyclictest33-21ksoftirqd/220:25:142
1745299385,6cyclictest33-21ksoftirqd/220:50:132
17452993833,3cyclictest33-21ksoftirqd/221:00:202
17452993833,3cyclictest33-21ksoftirqd/200:25:142
17452993832,4cyclictest33-21ksoftirqd/222:15:002
17452993832,3cyclictest33-21ksoftirqd/222:30:002
17452993832,3cyclictest33-21ksoftirqd/221:55:152
17452993832,3cyclictest33-21ksoftirqd/219:20:012
1745299382,9cyclictest33-21ksoftirqd/219:10:252
17452993828,3cyclictest6321-21find23:05:242
17452993825,4cyclictest33-21ksoftirqd/223:30:012
17452993825,3cyclictest33-21ksoftirqd/220:15:162
17452993824,4cyclictest33-21ksoftirqd/220:35:222
17452993824,4cyclictest33-21ksoftirqd/220:35:222
1745299381,5cyclictest33-21ksoftirqd/220:10:282
1745299380,9cyclictest33-21ksoftirqd/221:40:112
1745299377,3cyclictest33-21ksoftirqd/219:50:202
1745299376,8cyclictest33-21ksoftirqd/220:05:002
1745299376,7cyclictest33-21ksoftirqd/221:25:132
1745299375,5cyclictest33-21ksoftirqd/223:05:012
1745299374,7cyclictest33-21ksoftirqd/222:05:132
17452993732,3cyclictest33-21ksoftirqd/223:45:202
17452993732,3cyclictest33-21ksoftirqd/222:45:182
17452993732,3cyclictest33-21ksoftirqd/221:05:192
17452993731,3cyclictest33-21ksoftirqd/200:15:142
17452993730,5cyclictest33-21ksoftirqd/223:23:592
17452993725,3cyclictest33-21ksoftirqd/219:20:252
17452993723,4cyclictest33-21ksoftirqd/200:35:262
1745299367,4cyclictest33-21ksoftirqd/223:35:152
17452993633,2cyclictest33-21ksoftirqd/200:10:142
17452993627,3cyclictest33-21ksoftirqd/221:45:132
1745299362,6cyclictest33-21ksoftirqd/219:40:142
17451993630,4cyclictest25-21ksoftirqd/120:54:351
1745299356,3cyclictest33-21ksoftirqd/219:30:132
1745299355,3cyclictest33-21ksoftirqd/222:15:272
17452993530,3cyclictest33-21ksoftirqd/222:00:192
17452993529,4cyclictest33-21ksoftirqd/220:34:502
17452993523,3cyclictest33-21ksoftirqd/221:20:152
17452993521,4cyclictest33-21ksoftirqd/200:10:012
17452993518,5cyclictest33-21ksoftirqd/221:35:242
17451992822,4cyclictest25-21ksoftirqd/123:33:361
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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