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2025-11-27 - 07:55
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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 100 highest latencies:
System rackbslot6.osadl.org (updated Thu Nov 27, 2025 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1543621590,5sleep31685899cyclictest21:20:253
2244021450,5sleep11684399cyclictest21:40:141
1773911060,4ptp4l401ktimersoftd/320:15:193
193292870,2sleep30-21swapper/321:30:173
279042750,2sleep20-21swapper/221:55:212
205902700,2sleep00-21swapper/001:35:280
167292684,10sleep00-21swapper/020:19:570
245262650,2sleep30-21swapper/301:02:353
177391610,1ptp4l401ktimersoftd/300:22:403
84382590,2sleep10-21swapper/100:10:011
84382590,2sleep10-21swapper/100:10:011
177391570,1ptp4l401ktimersoftd/301:22:143
94552550,2sleep00-21swapper/001:21:550
320682530,2sleep00-21swapper/001:10:310
177391500,1ptp4l401ktimersoftd/321:35:253
177391490,0ptp4l401ktimersoftd/301:27:003
18582470,1sleep20-21swapper/222:50:172
177391470,2ptp4l9549-21kworker/3:001:49:523
177391440,1ptp4l401ktimersoftd/322:00:113
177391420,1ptp4l401ktimersoftd/320:46:243
177391410,1ptp4l401ktimersoftd/322:41:553
177391390,5ptp4l401ktimersoftd/323:19:013
177391390,1ptp4l401ktimersoftd/323:34:163
177391390,1ptp4l401ktimersoftd/323:13:103
177391390,1ptp4l401ktimersoftd/322:49:373
177391390,1ptp4l401ktimersoftd/300:11:523
177391380,2ptp4l14107-21kworker/3:020:20:293
177391380,2ptp4l14107-21kworker/3:020:20:293
177391380,1ptp4l401ktimersoftd/323:46:473
177391380,1ptp4l401ktimersoftd/323:09:483
177391380,1ptp4l401ktimersoftd/321:40:273
177391380,1ptp4l401ktimersoftd/321:29:263
177391380,1ptp4l401ktimersoftd/301:41:353
177391380,0ptp4l401ktimersoftd/322:59:543
177391370,1ptp4l401ktimersoftd/323:52:093
177391370,1ptp4l401ktimersoftd/323:20:353
177391370,1ptp4l401ktimersoftd/322:53:143
177391370,1ptp4l401ktimersoftd/322:31:173
177391370,1ptp4l401ktimersoftd/322:22:353
177391370,1ptp4l401ktimersoftd/322:22:353
177391370,1ptp4l401ktimersoftd/301:17:563
177391370,1ptp4l401ktimersoftd/301:06:113
177391370,0ptp4l401ktimersoftd/301:32:053
177391370,0ptp4l401ktimersoftd/300:38:443
16843993731,3cyclictest25-21ksoftirqd/123:10:051
177391360,2ptp4l12341-21kworker/3:201:10:333
177391360,1ptp4l401ktimersoftd/322:38:563
177391360,1ptp4l401ktimersoftd/320:25:043
177391360,1ptp4l401ktimersoftd/320:25:043
177391360,0ptp4l401ktimersoftd/300:04:003
177391350,2ptp4l25138-21kworker/3:123:55:133
177391350,1ptp4l401ktimersoftd/323:43:093
177391350,1ptp4l401ktimersoftd/321:15:333
16843993529,3cyclictest25-21ksoftirqd/122:50:041
177391340,2ptp4l14107-21kworker/3:020:43:013
177391340,2ptp4l12341-21kworker/3:200:50:573
177391340,1ptp4l401ktimersoftd/300:41:343
177391340,0ptp4l401ktimersoftd/301:36:413
16843993427,4cyclictest25-21ksoftirqd/120:40:011
151732347,14sleep10-21swapper/120:15:181
177391330,1ptp4l401ktimersoftd/323:00:193
177391330,1ptp4l401ktimersoftd/322:26:153
177391330,1ptp4l401ktimersoftd/322:10:123
177391330,1ptp4l401ktimersoftd/321:06:373
177391330,1ptp4l401ktimersoftd/300:58:503
177391330,1ptp4l401ktimersoftd/300:18:053
177391330,1ptp4l401ktimersoftd/300:06:003
177391330,1ptp4l401ktimersoftd/300:06:003
16843993327,4cyclictest25-21ksoftirqd/100:40:311
116122310,2sleep30-21swapper/300:49:103
285222300,3sleep228526-21needreboot20:40:222
16850993022,5cyclictest33-21ksoftirqd/201:35:062
177391290,1ptp4l401ktimersoftd/323:29:303
16858992922,4cyclictest41-21ksoftirqd/322:09:073
16850992924,3cyclictest33-21ksoftirqd/223:05:042
16843992924,3cyclictest25-21ksoftirqd/101:00:071
16843992920,6cyclictest25-21ksoftirqd/122:40:161
16837992922,4cyclictest9-21ksoftirqd/020:45:050
162732296,11sleep20-21swapper/220:15:312
25622280,1sleep20-21swapper/201:15:102
177391280,0ptp4l401ktimersoftd/321:11:453
16858992822,3cyclictest41-21ksoftirqd/323:37:543
16850992823,3cyclictest33-21ksoftirqd/222:25:032
16850992823,3cyclictest33-21ksoftirqd/222:25:032
16850992822,3cyclictest33-21ksoftirqd/222:45:222
16850992822,3cyclictest33-21ksoftirqd/221:31:582
16850992821,4cyclictest33-21ksoftirqd/222:14:402
16843992824,3cyclictest25-21ksoftirqd/123:40:281
16843992823,3cyclictest25-21ksoftirqd/123:45:341
16843992823,3cyclictest25-21ksoftirqd/122:25:191
16843992823,3cyclictest25-21ksoftirqd/101:30:071
16843992821,5cyclictest25-21ksoftirqd/122:35:041
16843992820,3cyclictest25-21ksoftirqd/100:48:231
16843992816,3cyclictest25-21ksoftirqd/121:20:231
16837992822,3cyclictest9-21ksoftirqd/022:38:550
294832270,3sleep21685099cyclictest23:20:242
177391270,10ptp4l401ktimersoftd/321:52:343
16858992720,4cyclictest41-21ksoftirqd/300:30:283
16850992722,3cyclictest33-21ksoftirqd/221:20:142
16850992720,4cyclictest33-21ksoftirqd/220:48:002
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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