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2026-05-14 - 16:40
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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 May 14, 2026 12:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1634321500,4sleep3436799cyclictest11:58:553
1068911500,8ptp4l15380-21kworker/3:208:31:203
2070621460,4sleep1435299cyclictest09:05:011
84821360,3sleep0434699cyclictest12:15:100
311302620,5sleep2435999cyclictest11:40:112
311302620,5sleep2435999cyclictest11:40:112
72582600,4sleep341-21ksoftirqd/310:44:113
242102600,2sleep30-21swapper/309:14:433
318372570,4sleep3436799cyclictest12:14:573
143291550,2getstats0-21swapper/310:20:123
7572540,1sleep30-21swapper/310:36:333
4346995417,10cyclictest9-21ksoftirqd/013:05:070
4346995146,3cyclictest9-21ksoftirqd/013:54:590
254972500,1sleep30-21swapper/311:01:463
21852500,2sleep00-21swapper/011:10:340
4346994641,3cyclictest9-21ksoftirqd/013:30:000
4346994635,3cyclictest9-21ksoftirqd/013:40:040
4346994624,4cyclictest9-21ksoftirqd/013:10:170
4346994620,4cyclictest9-21ksoftirqd/011:55:090
434699455,8cyclictest9-21ksoftirqd/011:44:570
434699455,8cyclictest9-21ksoftirqd/011:44:570
4346994540,3cyclictest9-21ksoftirqd/009:34:540
416124525,9sleep00-21swapper/008:33:410
4346994439,3cyclictest9-21ksoftirqd/013:50:000
4346994438,3cyclictest9-21ksoftirqd/010:14:560
4346994419,4cyclictest9-21ksoftirqd/010:09:590
4346994418,5cyclictest9-21ksoftirqd/013:25:120
4346994336,4cyclictest9-21ksoftirqd/012:34:520
4346994333,3cyclictest9-21ksoftirqd/011:15:110
4346994332,3cyclictest9-21ksoftirqd/013:00:010
4346994319,4cyclictest9-21ksoftirqd/012:55:050
4346994319,4cyclictest9-21ksoftirqd/009:20:050
436799422,28cyclictest4752-21apt-get14:00:023
4346994236,4cyclictest9-21ksoftirqd/011:49:500
4346994236,4cyclictest9-21ksoftirqd/011:49:500
4346994236,3cyclictest9-21ksoftirqd/011:04:580
4346994231,3cyclictest9-21ksoftirqd/010:30:060
4346994218,4cyclictest9-21ksoftirqd/011:36:090
4346994135,3cyclictest9-21ksoftirqd/010:54:550
4346994130,3cyclictest9-21ksoftirqd/010:20:060
4346994126,11cyclictest9-21ksoftirqd/012:30:080
4346994118,4cyclictest9-21ksoftirqd/008:44:590
434699404,3cyclictest9-21ksoftirqd/013:20:050
4346994028,3cyclictest9-21ksoftirqd/009:24:590
4346994024,4cyclictest9-21ksoftirqd/013:15:010
4346994018,3cyclictest9-21ksoftirqd/009:00:110
4346994018,3cyclictest9-21ksoftirqd/008:55:030
4346994017,4cyclictest9-21ksoftirqd/011:44:320
4346994017,4cyclictest9-21ksoftirqd/011:44:320
4346994016,4cyclictest9-21ksoftirqd/013:35:270
4346994016,4cyclictest9-21ksoftirqd/013:35:270
4346994016,4cyclictest9-21ksoftirqd/012:22:060
106891400,1ptp4l401ktimersoftd/312:24:253
436799390,2cyclictest0-21swapper/311:24:543
4346993915,4cyclictest9-21ksoftirqd/012:04:510
4346993915,4cyclictest9-21ksoftirqd/010:39:290
4346993915,4cyclictest9-21ksoftirqd/009:40:170
4346993914,4cyclictest9-21ksoftirqd/012:28:570
106891390,0ptp4l401ktimersoftd/311:39:593
106891390,0ptp4l401ktimersoftd/311:39:593
4352993832,3cyclictest25-21ksoftirqd/111:49:461
4352993832,3cyclictest25-21ksoftirqd/111:49:461
4346993833,3cyclictest9-21ksoftirqd/013:44:490
4346993833,3cyclictest9-21ksoftirqd/011:19:580
4346993826,3cyclictest9-21ksoftirqd/012:49:480
4346993816,4cyclictest9-21ksoftirqd/009:45:030
4346993814,4cyclictest9-21ksoftirqd/012:50:000
4346993814,4cyclictest9-21ksoftirqd/010:40:000
434699380,3cyclictest9-21ksoftirqd/012:40:040
106891380,1ptp4l401ktimersoftd/313:54:363
106891380,1ptp4l401ktimersoftd/313:36:543
106891380,1ptp4l401ktimersoftd/313:36:543
106891380,1ptp4l401ktimersoftd/313:33:543
106891380,1ptp4l401ktimersoftd/313:28:133
106891380,1ptp4l401ktimersoftd/313:00:113
106891380,1ptp4l401ktimersoftd/312:53:523
106891380,1ptp4l401ktimersoftd/312:49:263
106891380,1ptp4l401ktimersoftd/311:59:493
106891380,1ptp4l401ktimersoftd/311:45:583
106891380,1ptp4l401ktimersoftd/311:45:583
106891380,1ptp4l401ktimersoftd/311:33:243
106891380,1ptp4l401ktimersoftd/311:23:453
106891380,1ptp4l401ktimersoftd/311:12:063
106891380,1ptp4l401ktimersoftd/311:05:393
106891380,0ptp4l401ktimersoftd/313:42:553
436799372,27cyclictest12939-21apt-get10:49:573
4352993732,3cyclictest25-21ksoftirqd/110:59:451
434699377,6cyclictest9-21ksoftirqd/012:00:010
4346993731,3cyclictest9-21ksoftirqd/011:34:450
4346993731,3cyclictest9-21ksoftirqd/008:44:420
4346993730,4cyclictest9-21ksoftirqd/009:34:440
4346993716,7cyclictest9-21ksoftirqd/012:10:530
4346993716,4cyclictest9-21ksoftirqd/010:05:040
4346993716,4cyclictest9-21ksoftirqd/010:05:040
4346993715,3cyclictest9-21ksoftirqd/011:01:140
106891370,1ptp4l401ktimersoftd/313:44:573
106891370,1ptp4l401ktimersoftd/313:24:143
106891370,1ptp4l401ktimersoftd/313:05:363
106891370,1ptp4l401ktimersoftd/312:40:263
106891370,1ptp4l401ktimersoftd/312:37:463
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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