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2026-08-13 - 12:00
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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 rackdslot4.osadl.org (updated Thu Aug 13, 2026 00:45:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
138591206170,24phc2sys0-21swapper/319:05:073
26972203169,22sleep20-21swapper/219:08:322
26912202169,22sleep10-21swapper/119:08:271
27492201169,21sleep00-21swapper/019:09:100
282228363,11sleep20-21swapper/219:10:002
138491650,1ptp4l401ktimersoftd/300:36:293
165912610,1sleep00-21swapper/022:50:220
53812600,2sleep00-21swapper/022:30:110
195432570,6sleep3311699cyclictest19:40:253
3116995523,7cyclictest41-21ksoftirqd/323:59:593
29132530,5sleep22917-21cpuspeed_turbos21:20:142
176242530,4sleep3391rcuc/320:45:003
3116995233,3cyclictest41-21ksoftirqd/322:55:223
208152520,2sleep00-21swapper/019:45:160
3116995128,2cyclictest41-21ksoftirqd/319:10:263
3116995018,3cyclictest41-21ksoftirqd/322:50:253
3116994921,4cyclictest41-21ksoftirqd/321:45:243
3116994914,4cyclictest41-21ksoftirqd/321:34:593
165122490,2sleep20-21swapper/221:45:202
3116994717,7cyclictest41-21ksoftirqd/300:10:263
3116994717,7cyclictest41-21ksoftirqd/300:10:263
3116994621,6cyclictest41-21ksoftirqd/320:30:253
3116994620,7cyclictest41-21ksoftirqd/322:15:143
3116994619,3cyclictest41-21ksoftirqd/320:00:143
3116994616,4cyclictest41-21ksoftirqd/322:25:133
3116994616,3cyclictest41-21ksoftirqd/321:00:123
3116994532,11cyclictest41-21ksoftirqd/321:45:003
3116994532,11cyclictest41-21ksoftirqd/321:45:003
3116994520,6cyclictest41-21ksoftirqd/321:35:193
3116994516,7cyclictest41-21ksoftirqd/321:25:273
3116994516,6cyclictest41-21ksoftirqd/320:15:163
3116994516,4cyclictest41-21ksoftirqd/323:35:253
311699449,4cyclictest41-21ksoftirqd/322:05:233
311699448,4cyclictest41-21ksoftirqd/300:07:513
3116994417,7cyclictest41-21ksoftirqd/323:15:153
3116994417,3cyclictest41-21ksoftirqd/323:30:223
3116994417,3cyclictest41-21ksoftirqd/323:30:223
311699437,4cyclictest41-21ksoftirqd/322:35:163
311699435,4cyclictest41-21ksoftirqd/322:30:583
311699435,4cyclictest41-21ksoftirqd/321:05:453
3116994314,7cyclictest41-21ksoftirqd/322:40:143
138491430,0ptp4l401ktimersoftd/323:00:213
311699428,3cyclictest41-21ksoftirqd/319:45:263
311699424,4cyclictest41-21ksoftirqd/323:27:543
311699424,4cyclictest41-21ksoftirqd/321:10:553
3116994215,7cyclictest41-21ksoftirqd/323:50:113
138491420,0ptp4l401ktimersoftd/322:10:553
138491420,0ptp4l401ktimersoftd/322:10:543
311699417,8cyclictest41-21ksoftirqd/322:00:233
311699417,6cyclictest41-21ksoftirqd/300:25:133
311699414,4cyclictest41-21ksoftirqd/323:43:313
311699414,4cyclictest41-21ksoftirqd/320:05:123
311699414,4cyclictest41-21ksoftirqd/300:21:183
311699413,4cyclictest41-21ksoftirqd/319:24:003
311699412,4cyclictest41-21ksoftirqd/321:17:373
3116994111,4cyclictest41-21ksoftirqd/319:50:253
138491410,1ptp4l401ktimersoftd/300:01:163
138491410,0ptp4l401ktimersoftd/319:58:323
311699404,5cyclictest41-21ksoftirqd/320:37:013
311699404,4cyclictest41-21ksoftirqd/320:27:063
311699403,4cyclictest41-21ksoftirqd/321:22:263
3116994033,4cyclictest41-21ksoftirqd/323:45:093
311699401,36cyclictest2800-21cron20:15:003
3116994012,7cyclictest41-21ksoftirqd/320:45:243
3116994011,4cyclictest41-21ksoftirqd/323:08:473
311699393,4cyclictest41-21ksoftirqd/321:59:533
3116993934,3cyclictest41-21ksoftirqd/319:40:003
311699387,4cyclictest41-21ksoftirqd/319:25:203
311699384,8cyclictest41-21ksoftirqd/319:15:133
3116993834,3cyclictest41-21ksoftirqd/300:34:593
3116993833,3cyclictest41-21ksoftirqd/322:20:173
3116993833,3cyclictest41-21ksoftirqd/319:34:593
3116993833,2cyclictest1303-21runrttasks21:52:253
3116993832,3cyclictest41-21ksoftirqd/323:10:153
311699378,7cyclictest41-21ksoftirqd/320:20:163
3116993733,3cyclictest41-21ksoftirqd/320:55:283
3116993732,3cyclictest41-21ksoftirqd/323:20:283
3116993731,3cyclictest41-21ksoftirqd/300:20:013
3115993731,4cyclictest33-21ksoftirqd/223:54:432
3115993731,4cyclictest33-21ksoftirqd/223:29:402
3115993729,5cyclictest33-21ksoftirqd/219:50:112
3114993731,4cyclictest25-21ksoftirqd/123:25:561
3114993731,4cyclictest25-21ksoftirqd/122:23:351
3114993731,4cyclictest25-21ksoftirqd/121:20:131
3114993731,4cyclictest25-21ksoftirqd/100:03:191
3114993730,4cyclictest25-21ksoftirqd/119:23:181
311699364,4cyclictest41-21ksoftirqd/322:49:313
311699364,4cyclictest41-21ksoftirqd/320:51:443
3115993630,4cyclictest33-21ksoftirqd/223:44:202
3115993630,4cyclictest33-21ksoftirqd/221:28:562
311599360,2cyclictest0-21swapper/219:40:232
311499366,28cyclictest0-21swapper/122:54:121
3114993630,4cyclictest25-21ksoftirqd/123:44:181
3114993630,4cyclictest25-21ksoftirqd/122:32:581
3114993630,4cyclictest25-21ksoftirqd/121:48:331
3114993630,4cyclictest25-21ksoftirqd/121:17:201
3114993630,4cyclictest25-21ksoftirqd/121:01:191
3114993630,3cyclictest25-21ksoftirqd/120:00:011
3113993631,3cyclictest9-21ksoftirqd/023:42:570
3113993630,4cyclictest9-21ksoftirqd/022:01:280
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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