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2023-12-10 - 14:36
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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 rackdslot2.osadl.org (updated Sun Dec 10, 2023 00:46:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2146921660,7sleep12993999cyclictest23:25:451
331021640,9sleep22994099cyclictest19:20:342
294902147126,10sleep10-21swapper/119:07:521
294902147126,10sleep10-21swapper/119:07:511
1235911270,4ptp4l401ktimersoftd/319:08:333
1235911270,4ptp4l401ktimersoftd/319:08:333
29429210684,10sleep20-21swapper/219:07:042
29429210684,10sleep20-21swapper/219:07:042
1930521000,7sleep12993999cyclictest21:05:221
2937728110,18sleep00-21swapper/019:06:300
2937728110,18sleep00-21swapper/019:06:300
29939998041,8cyclictest25-21ksoftirqd/122:10:351
29939997942,7cyclictest25-21ksoftirqd/123:10:361
29939997840,7cyclictest25-21ksoftirqd/123:20:471
29939997740,7cyclictest25-21ksoftirqd/120:00:411
29939997737,9cyclictest25-21ksoftirqd/123:04:591
29939997737,5cyclictest25-21ksoftirqd/122:00:001
29939997639,7cyclictest25-21ksoftirqd/122:00:341
29939997639,7cyclictest25-21ksoftirqd/122:00:341
29939997639,7cyclictest25-21ksoftirqd/121:40:261
29939997535,6cyclictest25-21ksoftirqd/123:50:281
29939997437,7cyclictest25-21ksoftirqd/119:40:381
29939997436,7cyclictest25-21ksoftirqd/123:50:011
29939997435,5cyclictest25-21ksoftirqd/120:35:351
29939997435,5cyclictest25-21ksoftirqd/120:35:351
29939997434,5cyclictest25-21ksoftirqd/121:15:351
29939997338,5cyclictest25-21ksoftirqd/121:30:321
29939997337,7cyclictest25-21ksoftirqd/100:00:341
29939997336,7cyclictest25-21ksoftirqd/120:05:261
29939997336,7cyclictest25-21ksoftirqd/119:30:251
29939997335,8cyclictest25-21ksoftirqd/119:25:341
29939997335,10cyclictest25-21ksoftirqd/122:40:361
29939997334,5cyclictest25-21ksoftirqd/121:45:371
29939997236,10cyclictest25-21ksoftirqd/121:10:211
29939997235,7cyclictest25-21ksoftirqd/122:15:341
29939997235,7cyclictest25-21ksoftirqd/119:50:261
29939997234,5cyclictest25-21ksoftirqd/121:35:331
29939997135,8cyclictest25-21ksoftirqd/100:30:241
29939997133,8cyclictest25-21ksoftirqd/120:45:361
29939997133,5cyclictest25-21ksoftirqd/123:15:231
29939997132,8cyclictest25-21ksoftirqd/122:45:221
29939997129,8cyclictest25-21ksoftirqd/120:15:371
29939997126,8cyclictest25-21ksoftirqd/121:50:221
2993999707,10cyclictest25-21ksoftirqd/122:30:011
29939997035,11cyclictest25-21ksoftirqd/122:05:471
29939996961,4cyclictest25-21ksoftirqd/123:55:201
29939996935,4cyclictest25-21ksoftirqd/122:55:281
2993999687,7cyclictest15300-21awk00:25:001
2993999686,10cyclictest25-21ksoftirqd/100:15:421
2993999684,12cyclictest25-21ksoftirqd/123:30:341
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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