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2025-08-22 - 00:09
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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 rackdslot2.osadl.org (updated Thu Aug 21, 2025 12:45:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
137391212178,22phc2sys0-21swapper/307:05:503
94992209175,22sleep20-21swapper/207:09:012
74402203170,21sleep10-21swapper/107:05:051
93232202169,22sleep00-21swapper/007:06:420
9870996614,13cyclictest0-21swapper/207:30:002
9870996313,23cyclictest24731-21mailstats11:00:262
987099630,19cyclictest4906-21irqstats08:05:212
987099621,19cyclictest23233-21date08:45:012
987099620,21cyclictest24501-21expr07:40:172
987099620,21cyclictest24501-21expr07:40:162
9869996221,7cyclictest25-21ksoftirqd/110:10:251
987099611,20cyclictest2073-21taskset08:00:192
9869996123,3cyclictest25-21ksoftirqd/110:45:261
987099600,23cyclictest12554-21awk08:20:222
987099600,21cyclictest21803-21date07:35:002
957726050,4sleep20-21swapper/207:10:012
137922600,4sleep1241ktimersoftd/110:40:121
987099590,28cyclictest1740-21date10:15:002
987099580,24cyclictest4653-21df_abs10:20:152
987099580,21cyclictest2498-21awk10:15:182
987099580,20cyclictest2601-21cstates12:30:142
987099580,18cyclictest19382-21sshd11:56:102
9869995824,7cyclictest25-21ksoftirqd/112:10:181
9869995823,8cyclictest25-21ksoftirqd/108:35:211
9869995822,8cyclictest25-21ksoftirqd/110:05:271
9869995822,8cyclictest25-21ksoftirqd/110:00:271
9869995821,8cyclictest25-21ksoftirqd/111:20:251
9869995723,8cyclictest25-21ksoftirqd/108:40:181
9869995723,7cyclictest25-21ksoftirqd/108:00:201
9869995722,8cyclictest25-21ksoftirqd/107:50:191
9869995722,7cyclictest25-21ksoftirqd/111:40:251
9869995722,7cyclictest25-21ksoftirqd/109:25:241
9869995722,7cyclictest25-21ksoftirqd/109:15:281
9869995721,8cyclictest25-21ksoftirqd/111:45:201
9869995623,4cyclictest25-21ksoftirqd/108:05:181
9869995621,8cyclictest25-21ksoftirqd/112:30:221
9869995621,7cyclictest25-21ksoftirqd/110:30:211
9869995620,8cyclictest25-21ksoftirqd/112:35:141
9869995617,9cyclictest25-21ksoftirqd/111:50:161
9869995616,7cyclictest25-21ksoftirqd/111:10:161
987099550,19cyclictest7804-21cat08:10:262
9869995523,6cyclictest25-21ksoftirqd/109:40:001
9869995515,8cyclictest25-21ksoftirqd/108:50:161
269722550,2sleep326975-21processes11:05:253
986999547,3cyclictest25-21ksoftirqd/108:45:241
9869995426,4cyclictest25-21ksoftirqd/109:05:151
9869995422,7cyclictest25-21ksoftirqd/107:25:261
9869995420,7cyclictest25-21ksoftirqd/109:55:251
9869995420,10cyclictest25-21ksoftirqd/107:35:161
986999536,3cyclictest25-21ksoftirqd/109:00:251
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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