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2026-08-31 - 05:18
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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 Mon Aug 31, 2026 00:45:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1211222600,41sleep09-21ksoftirqd/019:05:160
136662207173,22sleep30-21swapper/319:07:543
136292204172,21sleep10-21swapper/119:07:231
136352203170,22sleep20-21swapper/219:07:282
747721570,2sleep10-21swapper/121:10:191
139391890,1ptp4l5681-21apt-get00:30:133
139391690,1ptp4l391rcuc/323:20:193
14122996633,4cyclictest25-21ksoftirqd/100:15:001
14122996331,8cyclictest25-21ksoftirqd/122:55:001
14122996327,8cyclictest25-21ksoftirqd/123:40:001
14122996230,7cyclictest25-21ksoftirqd/122:30:001
14122996223,10cyclictest25-21ksoftirqd/120:45:201
14122995928,8cyclictest25-21ksoftirqd/121:40:191
14122995927,3cyclictest25-21ksoftirqd/121:29:591
14122995924,4cyclictest25-21ksoftirqd/120:25:241
14122995916,7cyclictest25-21ksoftirqd/123:55:151
1412299587,8cyclictest25-21ksoftirqd/100:25:001
14122995827,8cyclictest25-21ksoftirqd/100:00:151
14122995727,8cyclictest25-21ksoftirqd/122:20:011
14122995725,9cyclictest25-21ksoftirqd/120:11:241
14122995725,9cyclictest25-21ksoftirqd/100:10:011
14122995725,8cyclictest25-21ksoftirqd/121:05:281
14122995725,8cyclictest25-21ksoftirqd/119:40:271
14122995723,4cyclictest25-21ksoftirqd/123:40:161
30522560,4sleep23053-21cut23:15:242
14122995627,8cyclictest25-21ksoftirqd/122:40:121
14122995627,8cyclictest25-21ksoftirqd/122:00:131
14122995627,4cyclictest25-21ksoftirqd/121:50:141
14122995626,7cyclictest25-21ksoftirqd/100:20:001
14122995625,12cyclictest25-21ksoftirqd/123:10:001
14122995623,8cyclictest25-21ksoftirqd/119:25:011
14122995623,4cyclictest25-21ksoftirqd/119:50:131
14122995529,7cyclictest25-21ksoftirqd/122:35:151
14122995526,7cyclictest25-21ksoftirqd/123:45:271
14122995523,8cyclictest25-21ksoftirqd/120:05:261
14122995523,8cyclictest25-21ksoftirqd/120:05:261
14122995522,8cyclictest25-21ksoftirqd/122:30:191
14122995428,9cyclictest25-21ksoftirqd/119:35:271
14122995428,9cyclictest25-21ksoftirqd/119:35:271
14122995428,7cyclictest25-21ksoftirqd/123:30:141
14122995428,6cyclictest25-21ksoftirqd/119:10:231
14122995425,7cyclictest25-21ksoftirqd/120:00:271
14122995425,3cyclictest25-21ksoftirqd/122:45:191
14122995424,9cyclictest25-21ksoftirqd/119:25:141
14122995423,8cyclictest25-21ksoftirqd/120:15:191
14122995423,7cyclictest25-21ksoftirqd/119:30:141
14122995423,4cyclictest25-21ksoftirqd/100:35:241
14122995420,6cyclictest25-21ksoftirqd/123:15:131
14122995419,4cyclictest25-21ksoftirqd/121:35:271
14122995417,7cyclictest25-21ksoftirqd/121:55:021
14122995326,9cyclictest25-21ksoftirqd/122:10:271
14122995325,9cyclictest25-21ksoftirqd/120:35:171
14122995325,7cyclictest25-21ksoftirqd/120:50:231
14122995322,8cyclictest25-21ksoftirqd/121:15:271
14122995322,4cyclictest25-21ksoftirqd/119:45:211
14122995223,9cyclictest25-21ksoftirqd/120:30:281
14122995222,8cyclictest25-21ksoftirqd/123:00:201
14122995222,8cyclictest25-21ksoftirqd/120:20:141
14122995222,7cyclictest25-21ksoftirqd/121:30:321
14122995221,8cyclictest25-21ksoftirqd/100:30:281
14122995221,7cyclictest25-21ksoftirqd/121:00:251
14122995220,9cyclictest25-21ksoftirqd/120:40:191
14122995219,7cyclictest25-21ksoftirqd/122:55:141
14122995218,7cyclictest25-21ksoftirqd/123:25:151
1412499512,17cyclictest1675-21/usr/sbin/munin23:15:253
14122995121,8cyclictest25-21ksoftirqd/123:15:001
14122995121,7cyclictest25-21ksoftirqd/120:55:141
14122995119,7cyclictest25-21ksoftirqd/122:05:241
14122995117,5cyclictest25-21ksoftirqd/123:20:171
14122995114,7cyclictest25-21ksoftirqd/119:15:131
57292500,1sleep20-21swapper/223:20:262
14122995017,5cyclictest25-21ksoftirqd/122:20:141
14122994920,7cyclictest25-21ksoftirqd/119:55:131
14122994716,8cyclictest25-21ksoftirqd/121:45:151
14122994716,8cyclictest25-21ksoftirqd/121:20:261
14122994610,6cyclictest25-21ksoftirqd/100:25:291
139391440,0ptp4l401ktimersoftd/319:21:583
139391430,0ptp4l401ktimersoftd/322:50:203
139391430,0ptp4l401ktimersoftd/320:58:583
139391420,0ptp4l401ktimersoftd/323:08:153
139391420,0ptp4l401ktimersoftd/323:00:293
14122994136,2cyclictest25-21ksoftirqd/123:54:591
57898400,4rtkit-daemon9468-21diskstats23:30:160
14121993833,3cyclictest9-21ksoftirqd/023:17:030
57898370,2rtkit-daemon0-21swapper/020:15:180
14124993730,4cyclictest41-21ksoftirqd/320:13:313
1412499372,7cyclictest7772-21memory21:10:213
14123993731,4cyclictest33-21ksoftirqd/222:05:322
14124993631,3cyclictest25459-21sh00:05:003
14123993630,4cyclictest33-21ksoftirqd/223:51:272
14124993530,3cyclictest41-21ksoftirqd/300:15:123
14124993529,4cyclictest41-21ksoftirqd/320:50:433
14124993529,3cyclictest41-21ksoftirqd/321:05:473
14123993530,3cyclictest33-21ksoftirqd/221:45:112
14123993530,3cyclictest33-21ksoftirqd/220:15:122
14123993530,3cyclictest33-21ksoftirqd/220:10:112
14123993529,4cyclictest33-21ksoftirqd/221:28:172
14123993529,4cyclictest33-21ksoftirqd/221:15:332
14123993529,4cyclictest33-21ksoftirqd/221:04:462
14123993529,4cyclictest33-21ksoftirqd/220:08:382
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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