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2024-09-13 - 00:05
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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 rackdslot3.osadl.org (updated Thu Sep 12, 2024 12:46:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
8255911210,51ptp4l401ktimersoftd/307:09:423
8255911180,2ptp4l14976-21timerwakeupswit11:55:283
442121180,6sleep3856999cyclictest10:25:173
8569998069,6cyclictest41-21ksoftirqd/312:35:133
8569998069,6cyclictest41-21ksoftirqd/307:15:123
8567997868,6cyclictest25-21ksoftirqd/107:20:121
8569997760,8cyclictest41-21ksoftirqd/311:45:123
61852774,11sleep20-21swapper/207:05:122
8569997661,7cyclictest41-21ksoftirqd/309:10:113
8569997661,7cyclictest41-21ksoftirqd/307:35:133
8569997660,8cyclictest41-21ksoftirqd/308:20:123
8569997560,9cyclictest41-21ksoftirqd/310:05:133
8569997459,8cyclictest41-21ksoftirqd/310:40:123
8569997458,8cyclictest41-21ksoftirqd/311:50:103
8569997257,6cyclictest41-21ksoftirqd/310:00:123
825591720,1ptp4l401ktimersoftd/311:35:263
8569997156,8cyclictest41-21ksoftirqd/307:45:123
825591710,4ptp4l401ktimersoftd/307:10:003
8569997057,6cyclictest41-21ksoftirqd/310:45:133
8569997054,8cyclictest41-21ksoftirqd/309:30:133
8567997061,5cyclictest25-21ksoftirqd/111:15:101
8567997060,5cyclictest25-21ksoftirqd/110:35:141
8567997030,5cyclictest25-21ksoftirqd/111:30:001
8567996829,5cyclictest25-21ksoftirqd/112:25:011
8567996634,4cyclictest25-21ksoftirqd/110:45:171
8567996634,4cyclictest25-21ksoftirqd/108:40:281
8567996558,4cyclictest25-21ksoftirqd/109:00:051
8567996533,5cyclictest25-21ksoftirqd/112:15:121
8567996435,7cyclictest25-21ksoftirqd/108:25:131
8567996433,4cyclictest25-21ksoftirqd/108:35:221
8567996432,5cyclictest25-21ksoftirqd/107:55:131
8567996431,4cyclictest25-21ksoftirqd/110:55:151
8567996427,5cyclictest25-21ksoftirqd/109:25:251
8567996426,5cyclictest25-21ksoftirqd/107:40:181
8567996355,5cyclictest25-21ksoftirqd/110:09:171
8567996331,4cyclictest25-21ksoftirqd/110:25:231
8567996330,4cyclictest25-21ksoftirqd/108:20:261
8567996327,4cyclictest25-21ksoftirqd/107:45:241
8567996326,8cyclictest25-21ksoftirqd/108:50:191
8567996325,10cyclictest25-21ksoftirqd/110:30:251
8567996255,4cyclictest25-21ksoftirqd/110:10:041
8567996232,4cyclictest25-21ksoftirqd/108:15:271
8567996231,4cyclictest25-21ksoftirqd/111:20:211
8567996231,4cyclictest25-21ksoftirqd/110:40:161
8567996229,4cyclictest25-21ksoftirqd/111:35:201
8567996229,4cyclictest25-21ksoftirqd/111:00:231
8567996223,8cyclictest25-21ksoftirqd/109:15:211
8567996130,5cyclictest25-21ksoftirqd/112:30:151
8567996130,4cyclictest25-21ksoftirqd/110:00:121
8567996128,5cyclictest25-21ksoftirqd/109:10:001
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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