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2026-05-18 - 10:09
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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 50 highest latencies:
System rackdslot1.osadl.org (updated Mon May 18, 2026 00:45:39)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
303142860,5sleep330318-21irqrtprio23:50:203
29081997829,5cyclictest9-21ksoftirqd/021:00:260
2908499721,32cyclictest26557-21chrt22:32:213
29082997124,7cyclictest25-21ksoftirqd/120:00:281
2908499700,42cyclictest6761-21cut19:30:173
2908499700,25cyclictest22155-21egrep20:05:143
129732690,6sleep22908399cyclictest22:04:592
2908499681,23cyclictest5289-21cut00:05:183
2908499670,33cyclictest7817-21sed00:10:183
29082996731,9cyclictest25-21ksoftirqd/121:15:011
29081996733,3cyclictest9-21ksoftirqd/020:40:180
2908499667,18cyclictest20389-21cpuspeed_turbos23:30:123
29084996611,17cyclictest11374-21cat23:10:183
2908499660,27cyclictest8568-21grep23:05:133
2908499660,22cyclictest30594-21cat21:30:263
29081996630,5cyclictest9-21ksoftirqd/023:55:210
29081996628,9cyclictest9-21ksoftirqd/021:20:290
2908499651,29cyclictest14972-21taskset22:06:243
2908499650,31cyclictest21043-21cat22:20:203
2908499650,29cyclictest23417-21phc2sys21:15:283
2908499650,26cyclictest3935-21df_abs19:25:133
29082996526,3cyclictest25-21ksoftirqd/120:40:141
2908499640,28cyclictest26673-21chrt20:15:093
2908499640,28cyclictest17475-21taskset23:24:313
2908499640,25cyclictest1987-21grep00:00:133
29081996432,4cyclictest9-21ksoftirqd/020:35:010
2908499630,32cyclictest24058-21grep22:25:283
29082996333,4cyclictest25-21ksoftirqd/121:40:231
29081996359,2cyclictest101ktimersoftd/019:45:290
29081996331,4cyclictest9-21ksoftirqd/022:00:280
2908499622,19cyclictest0-21swapper/322:00:193
2908499620,25cyclictest18881-21grep00:35:133
29082996231,4cyclictest25-21ksoftirqd/121:25:161
29082996227,6cyclictest25-21ksoftirqd/123:25:151
29082996227,6cyclictest25-21ksoftirqd/123:25:151
29082996227,6cyclictest25-21ksoftirqd/100:00:191
29081996231,4cyclictest9-21ksoftirqd/022:55:240
2908499612,19cyclictest0-21swapper/321:25:183
2908499611,28cyclictest21599-21taskset20:01:513
2908499610,29cyclictest26124-21taskset20:11:033
2908499610,28cyclictest29029-21taskset23:46:463
29082996131,9cyclictest25-21ksoftirqd/100:35:231
29082996130,3cyclictest25-21ksoftirqd/121:05:201
29082996127,9cyclictest25-21ksoftirqd/122:00:241
29082996125,4cyclictest25-21ksoftirqd/121:20:291
29081996133,4cyclictest9-21ksoftirqd/021:15:270
29081996126,3cyclictest9-21ksoftirqd/021:50:200
29081996123,3cyclictest9-21ksoftirqd/022:45:130
134491610,8ptp4l0-21swapper/200:22:062
2908499601,29cyclictest5546-21taskset21:46:233
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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