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2026-09-02 - 11:44
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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 rackdslot3.osadl.org (updated Wed Sep 02, 2026 00:45:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
146652207181,17sleep10-21swapper/119:09:591
144282205171,23sleep20-21swapper/219:06:532
145812203170,22sleep00-21swapper/019:08:520
143182203168,23sleep30-21swapper/319:05:353
3228921560,7sleep11495899cyclictest23:05:261
244432760,8sleep01495799cyclictest22:50:210
14960995322,3cyclictest41-21ksoftirqd/322:35:273
139391530,1ptp4l401ktimersoftd/320:30:533
14960995221,3cyclictest41-21ksoftirqd/322:44:593
14960995220,9cyclictest41-21ksoftirqd/300:00:203
14960995220,9cyclictest41-21ksoftirqd/300:00:203
14960995219,4cyclictest41-21ksoftirqd/323:15:003
126062510,2sleep30-21swapper/320:10:213
14960995014,8cyclictest41-21ksoftirqd/319:49:593
65962490,2sleep00-21swapper/020:00:120
14960994920,7cyclictest41-21ksoftirqd/319:25:013
14960994920,6cyclictest41-21ksoftirqd/322:10:003
14960994919,4cyclictest41-21ksoftirqd/322:50:153
14960994919,4cyclictest41-21ksoftirqd/321:45:143
14960994916,7cyclictest41-21ksoftirqd/321:35:143
14960994817,4cyclictest41-21ksoftirqd/321:40:213
14960994812,10cyclictest41-21ksoftirqd/300:25:003
14960994720,3cyclictest41-21ksoftirqd/319:30:233
14960994719,7cyclictest41-21ksoftirqd/319:50:173
14960994718,6cyclictest41-21ksoftirqd/319:40:123
287382460,1sleep10-21swapper/120:45:171
1496099460,2cyclictest121rcu_preempt00:00:013
1496099459,3cyclictest41-21ksoftirqd/323:30:243
14960994516,7cyclictest41-21ksoftirqd/323:40:013
14960994516,3cyclictest41-21ksoftirqd/321:10:013
14960994516,3cyclictest41-21ksoftirqd/320:25:153
1496099451,3cyclictest121rcu_preempt23:10:013
14960994513,4cyclictest41-21ksoftirqd/321:25:153
14960994513,3cyclictest41-21ksoftirqd/322:00:133
14960994512,4cyclictest41-21ksoftirqd/323:25:003
1394914533,6phc2sys0-21swapper/319:10:013
48692440,1sleep00-21swapper/019:55:220
48692440,1sleep00-21swapper/019:55:220
14960994417,6cyclictest41-21ksoftirqd/320:20:273
14960994413,4cyclictest41-21ksoftirqd/300:30:183
14960994411,3cyclictest41-21ksoftirqd/320:15:143
14960994410,4cyclictest41-21ksoftirqd/321:30:233
1496099439,4cyclictest41-21ksoftirqd/319:55:173
1496099439,4cyclictest41-21ksoftirqd/319:55:173
1496099438,8cyclictest41-21ksoftirqd/321:10:133
1496099438,7cyclictest41-21ksoftirqd/320:50:143
14960994315,7cyclictest41-21ksoftirqd/322:55:123
14960994315,6cyclictest41-21ksoftirqd/323:25:123
14960994315,6cyclictest41-21ksoftirqd/319:25:143
14960994312,6cyclictest41-21ksoftirqd/320:05:233
1496099429,3cyclictest41-21ksoftirqd/323:40:223
1496099428,9cyclictest41-21ksoftirqd/320:35:203
1496099428,10cyclictest41-21ksoftirqd/319:39:593
14960994231,2cyclictest41-21ksoftirqd/300:15:203
14960994211,7cyclictest41-21ksoftirqd/321:20:273
14960994210,8cyclictest41-21ksoftirqd/321:55:243
1496099418,4cyclictest41-21ksoftirqd/323:00:003
14960994136,2cyclictest1317-21runrttasks22:27:383
14960994116,7cyclictest41-21ksoftirqd/321:05:013
14960994110,7cyclictest41-21ksoftirqd/321:50:163
14959994126,12cyclictest33-21ksoftirqd/222:10:172
14959994126,12cyclictest33-21ksoftirqd/222:10:162
1496099406,3cyclictest41-21ksoftirqd/320:40:163
14960994037,2cyclictest41-21ksoftirqd/300:10:013
1496099398,6cyclictest41-21ksoftirqd/320:56:263
1496099398,6cyclictest41-21ksoftirqd/320:56:263
1496099397,8cyclictest41-21ksoftirqd/322:30:133
1496099397,7cyclictest41-21ksoftirqd/319:15:173
1496099397,4cyclictest41-21ksoftirqd/322:25:013
14960993934,3cyclictest41-21ksoftirqd/322:15:013
14960993934,3cyclictest41-21ksoftirqd/322:15:013
14960993923,8cyclictest41-21ksoftirqd/323:50:003
1496099390,2cyclictest1300-21snmpd00:35:243
1496099382,2cyclictest121rcu_preempt23:15:013
1496099382,2cyclictest121rcu_preempt23:15:003
1496099380,8cyclictest41-21ksoftirqd/320:00:253
14958993833,3cyclictest16782-21sshd21:26:331
14960993733,3cyclictest41-21ksoftirqd/300:30:003
1496099372,3cyclictest121rcu_preempt22:20:013
1496099370,3cyclictest121rcu_preempt20:45:273
14959993731,4cyclictest33-21ksoftirqd/222:52:002
14958993732,3cyclictest25-21ksoftirqd/123:16:541
14958993732,3cyclictest25-21ksoftirqd/100:35:151
14958993731,4cyclictest25-21ksoftirqd/100:06:481
14958993730,5cyclictest25-21ksoftirqd/120:55:001
1496099368,7cyclictest41-21ksoftirqd/322:45:213
14960993632,3cyclictest41-21ksoftirqd/323:55:013
14960993630,3cyclictest41-21ksoftirqd/300:10:193
14960993629,4cyclictest41-21ksoftirqd/321:19:423
14959993631,3cyclictest33-21ksoftirqd/220:05:002
14959993630,4cyclictest33-21ksoftirqd/223:55:332
14959993630,4cyclictest33-21ksoftirqd/219:23:272
14959993630,4cyclictest33-21ksoftirqd/219:14:442
1495999362,2cyclictest121rcu_preempt21:44:212
14958993630,4cyclictest25-21ksoftirqd/123:36:231
14958993630,4cyclictest25-21ksoftirqd/122:41:101
14958993630,4cyclictest25-21ksoftirqd/120:05:061
14958993630,3cyclictest25-21ksoftirqd/120:30:121
14958993629,5cyclictest25-21ksoftirqd/119:59:161
14958993629,5cyclictest25-21ksoftirqd/119:59:161
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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