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2026-06-28 - 05:03
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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 Sun Jun 28, 2026 00:45:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
293672228163,21sleep20-21swapper/219:08:382
293712207173,22sleep10-21swapper/119:08:411
139491205172,22phc2sys0-21swapper/319:05:363
273432200167,22sleep00-21swapper/019:05:110
2485021500,6sleep12976499cyclictest20:05:211
139391770,1ptp4l391rcuc/322:40:233
170302690,2sleep10-21swapper/120:55:241
139391680,1ptp4l391rcuc/322:15:253
29766996526,8cyclictest41-21ksoftirqd/319:40:173
22682620,7sleep22976599cyclictest19:20:132
75442610,3sleep02976399cyclictest00:00:010
61032610,2sleep20-21swapper/221:40:222
29766996025,7cyclictest41-21ksoftirqd/319:20:143
29766995922,4cyclictest41-21ksoftirqd/319:55:143
89212580,2sleep30-21swapper/320:40:173
2976699576,6cyclictest31384-21dpkg22:35:003
29766995722,10cyclictest41-21ksoftirqd/322:35:103
29763995622,8cyclictest9-21ksoftirqd/021:15:000
139391540,46ptp4l0-21swapper/319:10:003
139391540,46ptp4l0-21swapper/319:10:003
29766995322,10cyclictest41-21ksoftirqd/319:40:013
2976699520,10cyclictest1342-21apache219:45:243
2976399516,4cyclictest9-21ksoftirqd/022:25:190
29763995013,6cyclictest9-21ksoftirqd/022:35:240
29763994921,7cyclictest9-21ksoftirqd/022:30:140
215212490,1sleep20-21swapper/220:00:132
29766994818,3cyclictest41-21ksoftirqd/323:43:323
29766994817,8cyclictest41-21ksoftirqd/322:25:103
2976699450,12cyclictest41-21ksoftirqd/320:55:143
29765994540,3cyclictest16886-21fschecks_count19:50:152
2976699442,39cyclictest5731-21fschecks_count23:55:163
2976699441,15cyclictest29807-21tail23:35:273
2976399447,3cyclictest9-21ksoftirqd/020:30:280
29763994433,2cyclictest9-21ksoftirqd/021:35:260
29763994414,4cyclictest9-21ksoftirqd/020:05:140
29763994414,4cyclictest9-21ksoftirqd/019:20:240
139391440,0ptp4l401ktimersoftd/322:20:243
2976699432,6cyclictest8015-21/usr/sbin/munin22:50:263
29763994337,4cyclictest9-21ksoftirqd/021:50:140
29763994316,7cyclictest9-21ksoftirqd/023:55:010
29763994314,7cyclictest9-21ksoftirqd/020:55:240
29763994310,4cyclictest9-21ksoftirqd/023:15:010
2976399429,6cyclictest9-21ksoftirqd/000:25:140
2976399428,4cyclictest9-21ksoftirqd/021:50:010
2976399427,3cyclictest9-21ksoftirqd/021:05:290
2976399424,2cyclictest121rcu_preempt20:35:230
29763994216,7cyclictest9-21ksoftirqd/021:15:240
29763994214,7cyclictest9-21ksoftirqd/019:50:140
29763994213,3cyclictest9-21ksoftirqd/021:25:150
139391420,0ptp4l401ktimersoftd/323:23:573
139391420,0ptp4l401ktimersoftd/321:25:143
139391420,0ptp4l401ktimersoftd/320:22:133
139391420,0ptp4l401ktimersoftd/320:10:253
2976699415,5cyclictest41-21ksoftirqd/300:10:173
2976699414,6cyclictest22623-21cat21:10:003
2976399419,4cyclictest9-21ksoftirqd/000:05:270
2976399417,2cyclictest9-21ksoftirqd/022:45:270
2976399416,6cyclictest9-21ksoftirqd/020:45:140
2976399416,3cyclictest9-21ksoftirqd/020:50:160
2976399414,7cyclictest9-21ksoftirqd/000:25:010
29763994136,2cyclictest9-21ksoftirqd/020:19:590
2976399411,6cyclictest9-21ksoftirqd/023:35:250
2976399411,4cyclictest9-21ksoftirqd/022:00:180
29763994112,7cyclictest9-21ksoftirqd/019:30:130
29763994112,3cyclictest9-21ksoftirqd/023:25:010
29763994111,6cyclictest9-21ksoftirqd/023:30:010
2976399410,6cyclictest9-21ksoftirqd/023:00:180
139391410,0ptp4l401ktimersoftd/321:24:523
2976699408,6cyclictest41-21ksoftirqd/323:25:193
2976699402,7cyclictest41-21ksoftirqd/300:04:233
29766994019,7cyclictest41-21ksoftirqd/323:32:503
2976599402,37cyclictest8832-21kworker/2:119:35:332
2976399409,4cyclictest9-21ksoftirqd/000:30:270
2976399408,4cyclictest9-21ksoftirqd/021:55:190
2976399407,3cyclictest9-21ksoftirqd/019:45:210
2976399407,2cyclictest9-21ksoftirqd/023:30:250
2976399406,2cyclictest9-21ksoftirqd/020:20:290
2976399405,2cyclictest121rcu_preempt00:35:200
2976399404,5cyclictest9-21ksoftirqd/020:40:240
2976399404,2cyclictest121rcu_preempt21:30:150
2976399403,6cyclictest9-21ksoftirqd/023:50:010
2976399403,5cyclictest9-21ksoftirqd/019:15:180
29763994031,3cyclictest9-21ksoftirqd/022:45:000
2976399402,6cyclictest9-21ksoftirqd/022:50:250
2976399402,6cyclictest9-21ksoftirqd/000:15:270
2976399402,5cyclictest9-21ksoftirqd/019:25:270
29763994014,7cyclictest9-21ksoftirqd/020:00:170
29763994011,4cyclictest9-21ksoftirqd/021:40:270
29766993933,3cyclictest8104-21dump-pmu-power20:40:013
29766993923,7cyclictest41-21ksoftirqd/321:55:233
2976399399,4cyclictest9-21ksoftirqd/022:55:140
2976399396,2cyclictest9-21ksoftirqd/022:15:120
2976399395,2cyclictest121rcu_preempt23:05:140
2976399395,2cyclictest121rcu_preempt23:05:140
2976399392,6cyclictest9-21ksoftirqd/019:55:150
29763993912,7cyclictest9-21ksoftirqd/023:40:140
2976699383,5cyclictest41-21ksoftirqd/320:45:023
29764993833,3cyclictest25-21ksoftirqd/100:00:001
2976399387,3cyclictest9-21ksoftirqd/000:00:170
2976399382,2cyclictest121rcu_preempt21:20:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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