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2026-07-02 - 13:26
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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 100 highest latencies:
System rackdslot4.osadl.org (updated Thu Jul 02, 2026 00:45:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
10972206171,23sleep30-21swapper/319:05:333
14262204170,23sleep10-21swapper/119:09:371
12362202169,22sleep20-21swapper/219:07:222
11052202169,22sleep00-21swapper/019:05:390
3051821490,2sleep00-21swapper/023:20:210
1307521390,2sleep2175699cyclictest22:45:212
14572132106,14sleep00-21swapper/019:10:010
1519921280,6sleep2175699cyclictest23:55:172
1519921280,6sleep2175699cyclictest23:55:172
133602670,3sleep3391rcuc/320:35:233
1757996527,4cyclictest41-21ksoftirqd/323:20:143
1756996330,4cyclictest33-21ksoftirqd/220:30:192
1756996328,4cyclictest33-21ksoftirqd/219:10:232
1756996229,4cyclictest33-21ksoftirqd/222:40:142
1756996029,4cyclictest33-21ksoftirqd/220:40:242
1757995927,10cyclictest41-21ksoftirqd/323:55:263
1757995927,10cyclictest41-21ksoftirqd/323:55:263
1756995930,4cyclictest33-21ksoftirqd/223:10:002
1756995927,4cyclictest33-21ksoftirqd/221:55:202
1756995926,4cyclictest33-21ksoftirqd/223:45:142
1756995923,4cyclictest33-21ksoftirqd/223:40:192
1756995833,4cyclictest33-21ksoftirqd/220:05:132
1756995830,4cyclictest33-21ksoftirqd/221:50:152
1756995828,5cyclictest33-21ksoftirqd/221:40:012
1756995827,6cyclictest33-21ksoftirqd/221:45:012
1757995725,9cyclictest41-21ksoftirqd/300:10:153
1756995731,4cyclictest33-21ksoftirqd/219:15:182
1756995729,6cyclictest33-21ksoftirqd/222:35:172
1756995727,6cyclictest33-21ksoftirqd/219:40:172
1756995726,4cyclictest33-21ksoftirqd/219:49:592
1756995723,3cyclictest33-21ksoftirqd/220:10:242
1756995717,8cyclictest33-21ksoftirqd/200:10:282
1757995624,4cyclictest41-21ksoftirqd/323:25:123
1757995624,4cyclictest41-21ksoftirqd/323:25:123
175699564,9cyclictest33-21ksoftirqd/219:40:012
1756995623,4cyclictest33-21ksoftirqd/200:25:132
1756995622,4cyclictest33-21ksoftirqd/222:20:132
267992550,2sleep30-21swapper/321:05:013
1756995524,4cyclictest33-21ksoftirqd/219:20:022
1757995428,8cyclictest41-21ksoftirqd/323:50:013
1757995424,8cyclictest41-21ksoftirqd/300:00:143
1757995423,8cyclictest41-21ksoftirqd/322:45:143
1756995420,8cyclictest33-21ksoftirqd/222:09:242
1757995315,7cyclictest41-21ksoftirqd/321:14:343
1756995326,4cyclictest33-21ksoftirqd/200:05:242
1756995325,3cyclictest33-21ksoftirqd/223:50:162
1756995324,4cyclictest33-21ksoftirqd/220:15:172
1756995322,8cyclictest33-21ksoftirqd/219:35:012
1756995322,8cyclictest33-21ksoftirqd/219:35:012
1756995320,4cyclictest33-21ksoftirqd/223:30:212
175799523,6cyclictest401ktimersoftd/322:00:013
1756995223,6cyclictest33-21ksoftirqd/220:35:242
1755995247,3cyclictest4176-21basename21:24:591
1757995125,8cyclictest41-21ksoftirqd/322:20:143
1757995124,8cyclictest41-21ksoftirqd/322:15:253
1757995119,8cyclictest41-21ksoftirqd/321:45:183
175799510,6cyclictest401ktimersoftd/320:15:223
175699515,9cyclictest33-21ksoftirqd/223:05:002
1756995131,10cyclictest33-21ksoftirqd/220:50:262
175699512,7cyclictest33-21ksoftirqd/222:55:172
175699512,7cyclictest33-21ksoftirqd/222:55:172
1756995121,8cyclictest33-21ksoftirqd/223:35:242
175699511,2cyclictest121rcu_preempt23:19:592
175699511,2cyclictest121rcu_preempt21:30:232
1757995026,12cyclictest41-21ksoftirqd/322:25:143
175699504,9cyclictest33-21ksoftirqd/222:30:132
1756995031,4cyclictest33-21ksoftirqd/200:40:002
1756995028,4cyclictest33-21ksoftirqd/223:10:442
1756995023,10cyclictest33-21ksoftirqd/219:25:242
175799498,6cyclictest41-21ksoftirqd/319:55:143
1757994916,8cyclictest41-21ksoftirqd/321:25:193
175799490,6cyclictest21543-21latency_hist20:55:003
175699495,7cyclictest33-21ksoftirqd/222:25:222
175699495,4cyclictest33-21ksoftirqd/221:19:592
175699495,3cyclictest33-21ksoftirqd/220:20:212
175699494,9cyclictest33-21ksoftirqd/222:15:152
175699494,7cyclictest33-21ksoftirqd/200:20:172
175799484,6cyclictest41-21ksoftirqd/322:40:123
1757994827,10cyclictest41-21ksoftirqd/300:25:263
175699485,9cyclictest33-21ksoftirqd/221:45:192
175699484,9cyclictest33-21ksoftirqd/200:15:152
175699483,9cyclictest33-21ksoftirqd/221:10:112
175699483,7cyclictest33-21ksoftirqd/221:25:142
1756994822,3cyclictest33-21ksoftirqd/220:55:222
175699480,8cyclictest33-21ksoftirqd/222:10:132
1757994740,4cyclictest29223-21cron22:15:013
175799473,7cyclictest401ktimersoftd/322:55:223
175799473,7cyclictest401ktimersoftd/322:55:223
175799472,6cyclictest41-21ksoftirqd/323:05:013
1757994720,2cyclictest41-21ksoftirqd/320:07:423
1757994716,8cyclictest41-21ksoftirqd/322:50:123
175699475,3cyclictest33-21ksoftirqd/222:00:122
175699474,8cyclictest33-21ksoftirqd/223:25:152
175699474,8cyclictest33-21ksoftirqd/223:25:152
175699472,5cyclictest33-21ksoftirqd/221:20:172
175799466,6cyclictest41-21ksoftirqd/319:30:223
175799466,6cyclictest41-21ksoftirqd/319:30:223
1757994641,3cyclictest401ktimersoftd/300:25:003
175799463,6cyclictest41-21ksoftirqd/300:10:013
175799463,5cyclictest401ktimersoftd/320:15:013
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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