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2025-11-13 - 06:09
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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 rackdslot4.osadl.org (updated Wed Nov 12, 2025 12:45:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
22452202167,23sleep30-21swapper/307:07:253
22442202168,22sleep20-21swapper/207:07:242
24032201166,23sleep10-21swapper/107:09:281
24022201168,22sleep00-21swapper/007:09:270
4277918664,12phc2sys0-21swapper/307:10:003
245928262,11sleep20-21swapper/207:10:012
2751997034,4cyclictest25-21ksoftirqd/110:45:151
2751996835,4cyclictest25-21ksoftirqd/108:45:201
275099681,28cyclictest616-21cat09:15:000
275099680,21cyclictest17568-21mailstats10:50:260
2751996732,4cyclictest25-21ksoftirqd/107:15:281
2751996636,9cyclictest25-21ksoftirqd/108:09:591
2751996634,4cyclictest25-21ksoftirqd/112:05:161
2751996633,4cyclictest25-21ksoftirqd/109:35:251
2751996632,6cyclictest25-21ksoftirqd/107:55:011
2751996630,8cyclictest25-21ksoftirqd/110:00:241
2751996630,8cyclictest25-21ksoftirqd/109:05:011
2751996630,7cyclictest25-21ksoftirqd/111:30:131
2751996629,5cyclictest25-21ksoftirqd/107:25:241
2751996628,8cyclictest25-21ksoftirqd/108:55:301
2751996535,4cyclictest25-21ksoftirqd/111:10:161
2751996534,9cyclictest25-21ksoftirqd/107:40:261
2751996534,4cyclictest25-21ksoftirqd/112:20:191
2751996533,8cyclictest25-21ksoftirqd/108:50:291
2751996527,11cyclictest25-21ksoftirqd/107:20:131
2751996433,4cyclictest25-21ksoftirqd/110:15:261
2751996333,3cyclictest25-21ksoftirqd/110:30:171
2751996331,8cyclictest25-21ksoftirqd/111:20:241
2751996331,8cyclictest25-21ksoftirqd/108:10:271
2751996331,4cyclictest25-21ksoftirqd/111:35:221
2751996331,4cyclictest25-21ksoftirqd/110:20:261
2751996330,9cyclictest25-21ksoftirqd/108:20:201
2751996330,8cyclictest25-21ksoftirqd/111:05:001
2751996330,8cyclictest25-21ksoftirqd/110:40:161
2751996330,4cyclictest25-21ksoftirqd/108:30:161
2751996329,8cyclictest25-21ksoftirqd/109:35:001
2751996329,7cyclictest25-21ksoftirqd/110:15:001
2751996328,7cyclictest25-21ksoftirqd/111:25:171
2751996327,7cyclictest25-21ksoftirqd/108:35:181
275099631,25cyclictest9649-21sensors_temp08:25:260
111182630,1sleep00-21swapper/010:40:110
2751996232,4cyclictest25-21ksoftirqd/109:20:281
2751996231,4cyclictest25-21ksoftirqd/109:20:001
2751996230,8cyclictest25-21ksoftirqd/110:25:271
2751996230,8cyclictest25-21ksoftirqd/109:10:281
2751996230,10cyclictest25-21ksoftirqd/109:45:011
2751996228,4cyclictest25-21ksoftirqd/109:25:161
2751996227,8cyclictest25-21ksoftirqd/111:55:211
2751996227,8cyclictest25-21ksoftirqd/111:55:211
2751996227,7cyclictest25-21ksoftirqd/107:40:001
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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