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2025-10-22 - 06:28
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Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 50 highest latencies:
System rackbslot6.osadl.org (updated Wed Oct 22, 2025 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
732121550,5sleep32200899cyclictest23:45:263
1389021500,4sleep32200899cyclictest22:36:573
151221460,6sleep32200899cyclictest22:22:473
2477421340,3sleep12199599cyclictest23:28:051
1773911230,8ptp4l28810-21kworker/3:019:56:043
177391720,1ptp4l401ktimersoftd/300:13:343
177391700,1ptp4l401ktimersoftd/322:17:313
177391690,1ptp4l401ktimersoftd/300:38:413
216002684,10sleep00-21swapper/019:56:220
177391680,1ptp4l401ktimersoftd/300:09:103
177391670,1ptp4l401ktimersoftd/300:46:193
65612630,2sleep10-21swapper/100:20:371
86332590,1sleep00-21swapper/020:35:260
177391590,1ptp4l401ktimersoftd/323:26:263
273372580,3sleep0101ktimersoftd/000:08:030
177391570,1ptp4l401ktimersoftd/323:41:503
173342570,1sleep20-21swapper/222:40:412
216492554,39sleep20-21swapper/219:57:012
109782540,2sleep30-21swapper/301:04:073
177391530,1ptp4l401ktimersoftd/321:33:003
177391490,1ptp4l401ktimersoftd/323:53:223
177391490,1ptp4l401ktimersoftd/301:05:213
177391470,2ptp4l28214-21kworker/3:123:24:153
21995994539,3cyclictest0-21swapper/120:00:031
21995994538,3cyclictest25-21ksoftirqd/100:35:231
177391450,2ptp4l18547-21kworker/3:222:00:373
177391450,1ptp4l401ktimersoftd/300:34:143
177391450,1ptp4l401ktimersoftd/300:34:143
21995994438,4cyclictest25-21ksoftirqd/100:05:121
21995994336,4cyclictest25-21ksoftirqd/121:55:191
27402420,3sleep10-21swapper/120:25:191
21995994235,4cyclictest25-21ksoftirqd/100:45:221
21995994235,3cyclictest25-21ksoftirqd/121:35:141
177391420,0ptp4l401ktimersoftd/322:51:243
177391410,1ptp4l401ktimersoftd/300:02:483
177391400,2ptp4l28214-21kworker/3:100:20:253
21995993932,4cyclictest25-21ksoftirqd/122:20:201
21995993930,4cyclictest25-21ksoftirqd/123:05:211
177391390,1ptp4l401ktimersoftd/322:33:333
177391380,1ptp4l401ktimersoftd/323:55:263
177391380,1ptp4l401ktimersoftd/323:16:223
177391380,1ptp4l401ktimersoftd/323:08:503
177391380,1ptp4l401ktimersoftd/323:04:203
177391380,1ptp4l401ktimersoftd/322:29:233
177391380,1ptp4l401ktimersoftd/322:11:553
177391380,1ptp4l401ktimersoftd/322:07:283
177391380,1ptp4l401ktimersoftd/301:10:473
177391380,1ptp4l401ktimersoftd/300:28:573
177391370,1ptp4l401ktimersoftd/323:30:273
177391370,1ptp4l401ktimersoftd/323:11:373
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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