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2026-06-22 - 08:48
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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 rackdslot1.osadl.org (updated Mon Jun 22, 2026 00:45:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2495121600,5sleep31541099cyclictest19:30:143
2495121600,5sleep31541099cyclictest19:30:143
326521390,6sleep11540899cyclictest00:30:191
15408996933,5cyclictest25-21ksoftirqd/122:59:591
15408996724,5cyclictest25-21ksoftirqd/119:15:181
134491670,3ptp4l0-21swapper/019:36:250
15408996432,4cyclictest25-21ksoftirqd/121:20:251
15408996330,8cyclictest25-21ksoftirqd/122:30:001
15408996329,8cyclictest25-21ksoftirqd/120:10:281
15408996228,6cyclictest25-21ksoftirqd/122:35:281
15408996227,4cyclictest25-21ksoftirqd/122:05:271
1541099612,36cyclictest0-21swapper/320:22:283
15408996129,7cyclictest25-21ksoftirqd/122:50:281
15408996123,8cyclictest25-21ksoftirqd/119:25:011
15408996121,7cyclictest25-21ksoftirqd/120:20:171
15408996120,6cyclictest25-21ksoftirqd/120:40:211
134491610,3ptp4l0-21swapper/223:46:002
15408996030,6cyclictest25-21ksoftirqd/119:10:241
15408996028,6cyclictest25-21ksoftirqd/122:10:201
15408996027,4cyclictest25-21ksoftirqd/122:45:151
15408996027,3cyclictest25-21ksoftirqd/100:15:011
15408996025,8cyclictest25-21ksoftirqd/100:00:291
15408995931,9cyclictest25-21ksoftirqd/121:30:011
15408995931,7cyclictest25-21ksoftirqd/120:00:291
15408995926,3cyclictest25-21ksoftirqd/119:40:011
15408995925,7cyclictest25-21ksoftirqd/121:50:181
15408995923,8cyclictest25-21ksoftirqd/123:50:161
15408995923,8cyclictest25-21ksoftirqd/123:25:251
15408995923,3cyclictest25-21ksoftirqd/120:05:271
15408995921,7cyclictest25-21ksoftirqd/123:40:161
15408995919,8cyclictest25-21ksoftirqd/119:55:191
134491590,4ptp4l0-21swapper/121:10:191
134491590,4ptp4l0-21swapper/120:45:161
134491590,4ptp4l0-21swapper/021:45:190
235312580,6sleep21540999cyclictest22:55:162
1541099583,6cyclictest401ktimersoftd/321:40:013
15408995827,8cyclictest25-21ksoftirqd/123:35:171
15408995826,3cyclictest25-21ksoftirqd/122:40:191
15408995823,8cyclictest25-21ksoftirqd/119:45:181
20972570,6sleep31541099cyclictest23:20:003
1541099572,36cyclictest0-21swapper/323:42:143
15408995728,7cyclictest25-21ksoftirqd/120:15:141
15408995727,7cyclictest25-21ksoftirqd/122:15:211
15408995725,8cyclictest25-21ksoftirqd/100:05:151
15408995724,8cyclictest25-21ksoftirqd/120:30:251
15408995723,6cyclictest25-21ksoftirqd/121:40:181
15408995722,3cyclictest25-21ksoftirqd/120:35:221
15408995718,6cyclictest25-21ksoftirqd/119:51:301
134491570,5ptp4l101ktimersoftd/020:36:130
1541099562,35cyclictest0-21swapper/321:19:413
1541099562,32cyclictest0-21swapper/319:27:373
1541099562,12cyclictest0-21swapper/320:10:243
15408995625,6cyclictest25-21ksoftirqd/123:05:251
15408995623,8cyclictest25-21ksoftirqd/100:20:151
15408995623,7cyclictest25-21ksoftirqd/120:25:171
15408995622,8cyclictest25-21ksoftirqd/121:05:291
134491560,5ptp4l0-21swapper/021:20:300
134491560,4ptp4l0-21swapper/121:32:251
134491560,3ptp4l2753-21fschecks_count00:30:160
134491560,3ptp4l0-21swapper/121:01:421
134491560,11ptp4l0-21swapper/221:02:112
1541099554,12cyclictest0-21swapper/300:18:333
1541099553,5cyclictest401ktimersoftd/319:40:013
1541099552,11cyclictest0-21swapper/321:21:123
15409995527,8cyclictest33-21ksoftirqd/200:00:222
15408995527,7cyclictest25-21ksoftirqd/100:00:011
15408995521,7cyclictest25-21ksoftirqd/123:00:171
15408995519,5cyclictest25-21ksoftirqd/122:00:271
134491550,5ptp4l0-21swapper/022:20:210
134491550,5ptp4l0-21swapper/022:20:210
134491550,4ptp4l0-21swapper/022:50:300
1541099542,7cyclictest0-21swapper/322:20:243
1541099542,7cyclictest0-21swapper/322:20:233
15408995423,7cyclictest25-21ksoftirqd/123:15:221
134491540,12ptp4l14417-21python19:05:240
1541099534,7cyclictest41-21ksoftirqd/320:55:153
1541099533,6cyclictest41-21ksoftirqd/320:00:143
1541099533,5cyclictest401ktimersoftd/321:50:223
1541099531,6cyclictest0-21swapper/321:10:203
15408995313,8cyclictest25-21ksoftirqd/123:30:221
134491530,5ptp4l0-21swapper/021:37:270
134491530,4ptp4l0-21swapper/223:00:512
134491530,4ptp4l0-21swapper/222:16:462
1541099523,7cyclictest401ktimersoftd/300:30:163
1541099523,5cyclictest401ktimersoftd/319:10:243
1541099522,6cyclictest0-21swapper/321:00:163
1541099522,5cyclictest0-21swapper/320:05:163
1541099522,33cyclictest0-21swapper/300:10:293
15410995221,7cyclictest41-21ksoftirqd/323:50:173
1541099522,11cyclictest0-21swapper/322:40:243
1541099520,6cyclictest30114-21cut19:40:193
1540899526,2cyclictest25-21ksoftirqd/122:30:201
1540899525,2cyclictest25-21ksoftirqd/120:50:211
15408995220,7cyclictest25-21ksoftirqd/119:40:161
15408995218,8cyclictest25-21ksoftirqd/123:10:141
15408995218,8cyclictest25-21ksoftirqd/121:55:121
134491520,4ptp4l0-21swapper/021:32:170
134491520,4ptp4l0-21swapper/021:29:420
134491520,4ptp4l0-21swapper/019:59:120
1541099515,8cyclictest41-21ksoftirqd/321:26:493
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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