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2025-11-21 - 19:13
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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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack1slot3.osadl.org (updated Fri Nov 21, 2025 12:43:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
279882991410,2cyclictest0-21swapper/312:10:133
279882991311,1cyclictest0-21swapper/311:05:133
27988299130,12cyclictest0-21swapper/311:00:143
279882991211,0cyclictest0-21swapper/309:50:113
27988299120,11cyclictest69450irq/121-eno111:17:363
27988299120,11cyclictest0-21swapper/309:45:123
27988299120,11cyclictest0-21swapper/307:25:093
27988299120,11cyclictest0-21swapper/307:10:003
27988299111,4cyclictest0-21swapper/307:40:153
279882991111,0cyclictest0-21swapper/312:15:193
279882991111,0cyclictest0-21swapper/311:50:013
279882991111,0cyclictest0-21swapper/311:10:103
279882991111,0cyclictest0-21swapper/308:35:193
279882991110,1cyclictest304469-21turbostat08:10:003
279882991110,0cyclictest0-21swapper/311:20:143
27988299110,11cyclictest0-21swapper/312:35:163
27988299110,11cyclictest0-21swapper/309:55:153
27988299110,10cyclictest0-21swapper/310:20:003
27988299110,10cyclictest0-21swapper/310:00:163
27988299110,10cyclictest0-21swapper/309:35:013
27988299110,10cyclictest0-21swapper/308:50:023
27988299110,10cyclictest0-21swapper/308:25:173
27988299110,0cyclictest0-21swapper/312:20:213
27988299110,0cyclictest0-21swapper/310:35:133
27988299110,0cyclictest0-21swapper/309:15:123
27988299110,0cyclictest0-21swapper/308:40:133
27988299110,0cyclictest0-21swapper/307:25:013
27988299109,0cyclictest69450irq/121-eno107:45:153
27988299108,1cyclictest0-21swapper/311:30:123
279882991010,0cyclictest69450irq/121-eno111:57:263
279882991010,0cyclictest69450irq/121-eno111:39:213
279882991010,0cyclictest69450irq/121-eno111:28:363
279882991010,0cyclictest69450irq/121-eno109:05:163
279882991010,0cyclictest0-21swapper/312:00:143
279882991010,0cyclictest0-21swapper/310:14:563
279882991010,0cyclictest0-21swapper/308:45:193
279882991010,0cyclictest0-21swapper/308:30:123
279882991010,0cyclictest0-21swapper/308:10:113
279882991010,0cyclictest0-21swapper/307:50:123
279882991010,0cyclictest0-21swapper/307:30:113
27988299100,9cyclictest69450irq/121-eno110:56:433
27988299100,9cyclictest69450irq/121-eno109:40:413
27988299100,9cyclictest69450irq/121-eno109:24:223
27988299100,9cyclictest69450irq/121-eno108:55:153
27988299100,0cyclictest0-21swapper/312:30:053
27988299100,0cyclictest0-21swapper/310:40:223
2798829999,0cyclictest69450irq/121-eno110:53:503
2798829999,0cyclictest69450irq/121-eno110:32:273
2798829999,0cyclictest69450irq/121-eno110:05:213
2798829999,0cyclictest69450irq/121-eno108:03:213
2798829999,0cyclictest0-21swapper/308:20:023
2798829990,8cyclictest69450irq/121-eno107:15:163
2798829990,8cyclictest0-21swapper/307:35:003
2798829990,0cyclictest0-21swapper/311:50:013
2798829988,0cyclictest69450irq/121-eno110:29:303
2798829988,0cyclictest69450irq/121-eno110:15:133
2798829980,8cyclictest0-21swapper/312:05:193
278852281,4sleep30-21swapper/307:05:213
2798829977,0cyclictest69450irq/121-eno109:37:473
2798829977,0cyclictest0-21swapper/308:15:133
2798829970,6cyclictest69450irq/121-eno112:27:223
2798829970,6cyclictest69450irq/121-eno110:48:573
2798829966,0cyclictest69450irq/121-eno109:25:173
2798829960,4cyclictest0-21swapper/311:40:123
2798829960,1cyclictest0-21swapper/309:00:123
2798829954,0cyclictest0-21swapper/307:56:203
2798829950,4cyclictest69450irq/121-eno109:10:093
414691240,3sleep2414693-21ssh12:33:412
352171240,3sleep0352338-21sed10:05:210
339843240,3sleep1339845-21ssh09:35:321
279554242,1sleep20-21swapper/207:09:082
279292242,1sleep10-21swapper/107:05:471
278455241,1sleep00-21swapper/007:05:180
400194230,1sleep1400220-21apt-get12:00:141
378998230,1sleep2379024-21apt-get11:10:112
378363230,2sleep0378367-21ssh11:06:410
372722230,1sleep0372748-21apt-get10:55:120
365073230,2sleep1365292-21grep10:35:191
353381230,1sleep2353411-21apt-get10:10:122
351304230,1sleep1351330-21apt-get10:05:131
343463230,1sleep2343634-21python309:45:182
320564230,1sleep0320590-21apt-get08:50:130
292659230,1sleep1292677-21apt-get07:40:001
285225230,2sleep1285326-21awk07:20:161
413016220,1sleep0413043-21apt-get12:30:150
403744220,1sleep2403748-21ssh12:06:462
390254220,1sleep0389454-21/usr/sbin/munin11:35:190
387821220,1sleep1387981-21memory11:30:151
370643220,1sleep2370673-21apt-get10:50:142
364109220,1sleep20-21swapper/210:35:122
363771220,1sleep2363776-21sshd10:34:212
355138220,0sleep00-21swapper/010:14:210
351920220,1sleep2352070-21ntp_states10:05:182
349958220,1sleep2350240-21users10:00:192
347586220,0sleep10-21swapper/109:55:171
337134220,1sleep0337284-21ntp_states09:30:300
334232220,1sleep2334434-21ls09:25:012
332930220,1sleep00-21swapper/009:20:140
330212220,0sleep2329985-21apt-get09:15:042
325937220,0sleep00-21swapper/009:03:160
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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