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2026-03-11 - 09:47
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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 Mar 11, 2026 00:45:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
30122209173,25sleep30-21swapper/319:09:333
28482205172,22sleep00-21swapper/019:07:250
28552204170,23sleep20-21swapper/219:07:312
28492201168,22sleep10-21swapper/119:07:261
502121750,6sleep3334199cyclictest21:25:193
3339997032,7cyclictest25-21ksoftirqd/121:40:011
3339996429,7cyclictest25-21ksoftirqd/119:20:001
3339996326,7cyclictest25-21ksoftirqd/121:55:191
3339996323,9cyclictest25-21ksoftirqd/120:55:271
3339996323,8cyclictest25-21ksoftirqd/100:25:221
3339996322,8cyclictest25-21ksoftirqd/120:20:161
3339996223,8cyclictest25-21ksoftirqd/121:05:001
3339996223,7cyclictest25-21ksoftirqd/100:20:251
3339996131,8cyclictest25-21ksoftirqd/122:30:231
3339996125,11cyclictest25-21ksoftirqd/123:45:011
3339996122,8cyclictest25-21ksoftirqd/122:00:221
3339996122,8cyclictest25-21ksoftirqd/121:20:251
3339996122,8cyclictest25-21ksoftirqd/121:20:251
3339996122,8cyclictest25-21ksoftirqd/120:00:241
3339996122,7cyclictest25-21ksoftirqd/120:50:241
3339996122,7cyclictest25-21ksoftirqd/100:35:241
3339996122,7cyclictest25-21ksoftirqd/100:00:181
3339996122,10cyclictest25-21ksoftirqd/120:15:281
3339996121,7cyclictest25-21ksoftirqd/121:10:131
3339996120,7cyclictest25-21ksoftirqd/120:40:131
253232610,2sleep20-21swapper/219:55:002
3339996031,3cyclictest25-21ksoftirqd/119:10:191
3339996024,8cyclictest25-21ksoftirqd/123:00:181
3339996024,8cyclictest25-21ksoftirqd/122:55:151
3339996023,9cyclictest25-21ksoftirqd/123:45:231
3339996023,9cyclictest25-21ksoftirqd/123:25:261
3339996023,6cyclictest25-21ksoftirqd/121:30:171
3339996022,7cyclictest25-21ksoftirqd/121:40:221
3339996021,7cyclictest25-21ksoftirqd/122:15:171
3339996020,7cyclictest25-21ksoftirqd/119:25:231
3339995926,9cyclictest25-21ksoftirqd/121:05:261
3339995920,7cyclictest25-21ksoftirqd/122:10:221
3339995920,7cyclictest25-21ksoftirqd/122:10:221
3339995920,10cyclictest25-21ksoftirqd/121:50:321
3339995824,4cyclictest25-21ksoftirqd/121:45:151
3339995823,7cyclictest25-21ksoftirqd/119:30:201
3339995822,9cyclictest25-21ksoftirqd/100:10:221
3339995821,4cyclictest25-21ksoftirqd/123:35:261
3339995723,8cyclictest25-21ksoftirqd/123:15:241
3339995723,8cyclictest25-21ksoftirqd/122:20:141
3339995723,7cyclictest25-21ksoftirqd/119:50:231
3339995722,8cyclictest25-21ksoftirqd/100:09:591
3339995722,7cyclictest25-21ksoftirqd/123:10:261
3339995721,4cyclictest25-21ksoftirqd/123:30:231
3339995653,2cyclictest231rcuc/122:45:191
3339995653,2cyclictest231rcuc/122:45:191
3339995629,8cyclictest25-21ksoftirqd/122:25:211
3339995628,3cyclictest25-21ksoftirqd/122:05:121
3339995625,8cyclictest25-21ksoftirqd/122:35:111
3339995622,8cyclictest25-21ksoftirqd/123:50:231
3339995622,7cyclictest25-21ksoftirqd/121:25:221
3339995622,7cyclictest25-21ksoftirqd/119:20:011
3339995523,7cyclictest25-21ksoftirqd/123:20:231
3339995522,7cyclictest25-21ksoftirqd/120:35:271
3339995425,8cyclictest25-21ksoftirqd/122:40:241
3339995424,8cyclictest25-21ksoftirqd/120:25:171
333999537,3cyclictest25-21ksoftirqd/123:10:011
3339995323,7cyclictest25-21ksoftirqd/120:30:211
3339995319,6cyclictest25-21ksoftirqd/119:40:211
3339995318,9cyclictest25-21ksoftirqd/121:15:271
3339995318,9cyclictest25-21ksoftirqd/121:15:271
333999527,4cyclictest25-21ksoftirqd/100:15:161
333999527,4cyclictest25-21ksoftirqd/100:15:161
333999527,3cyclictest25-21ksoftirqd/120:45:191
333999524,9cyclictest25-21ksoftirqd/100:35:011
3339995221,8cyclictest25-21ksoftirqd/122:50:261
333999518,3cyclictest25-21ksoftirqd/123:55:171
333999517,3cyclictest25-21ksoftirqd/120:10:161
333999516,2cyclictest520-21cron19:40:011
3339995023,3cyclictest25-21ksoftirqd/119:55:251
3339994923,9cyclictest25-21ksoftirqd/119:45:251
3339994818,8cyclictest25-21ksoftirqd/120:05:021
139391430,0ptp4l401ktimersoftd/320:26:113
139391420,0ptp4l401ktimersoftd/322:20:233
139391420,0ptp4l401ktimersoftd/320:31:253
304724131,4sleep20-21swapper/219:10:002
139391410,0ptp4l401ktimersoftd/321:30:283
139391410,0ptp4l401ktimersoftd/300:32:063
139391380,0ptp4l401ktimersoftd/323:05:263
139391380,0ptp4l401ktimersoftd/322:00:143
3340993732,3cyclictest16252-21fschecks_count00:05:172
3340993731,4cyclictest33-21ksoftirqd/221:41:392
3341993630,3cyclictest41-21ksoftirqd/321:45:013
3341993629,5cyclictest41-21ksoftirqd/319:33:513
3340993631,3cyclictest33-21ksoftirqd/219:30:102
3340993630,4cyclictest33-21ksoftirqd/222:37:592
3340993630,4cyclictest33-21ksoftirqd/220:37:202
139391360,0ptp4l401ktimersoftd/320:45:193
139391360,0ptp4l401ktimersoftd/319:20:153
3341993529,4cyclictest41-21ksoftirqd/320:14:553
3341993529,4cyclictest41-21ksoftirqd/300:06:173
3340993531,3cyclictest33-21ksoftirqd/223:10:002
3340993529,4cyclictest33-21ksoftirqd/223:41:422
3340993529,4cyclictest33-21ksoftirqd/221:56:232
3340993529,4cyclictest33-21ksoftirqd/221:13:352
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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