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2025-11-08 - 06:04
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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 50 highest latencies:
System rack5slot3.osadl.org (updated Sat Nov 08, 2025 00:50:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1049729187,2sleep40-21swapper/419:05:134
1242128450,30sleep70-21swapper/719:06:537
1240128238,38sleep00-21swapper/019:06:380
1263028064,11sleep20-21swapper/219:09:522
1248527966,9sleep60-21swapper/619:07:486
1248027642,30sleep10-21swapper/119:07:431
1243727541,30sleep50-21swapper/519:07:075
1252727441,29sleep30-21swapper/319:08:253
13072995548,6cyclictest0-21swapper/200:06:132
13071995510,45cyclictest0-21swapper/123:55:141
13075995410,44cyclictest0-21swapper/500:33:425
13074995353,0cyclictest0-21swapper/423:55:164
13077995252,0cyclictest0-21swapper/723:15:147
13075995251,0cyclictest0-21swapper/523:22:175
13070995252,0cyclictest0-21swapper/000:27:510
53122510,0sleep30-21swapper/322:51:393
283272510,0sleep30-21swapper/300:21:383
13075995151,0cyclictest0-21swapper/500:20:165
13077995010,0cyclictest0-21swapper/700:09:387
13075995050,0cyclictest0-21swapper/500:11:325
13071995010,0cyclictest0-21swapper/123:39:081
13074994949,0cyclictest0-21swapper/421:55:244
13074994910,0cyclictest0-21swapper/400:13:284
13073994910,0cyclictest0-21swapper/322:30:203
13072994948,0cyclictest0-21swapper/223:30:452
297442480,0sleep50-21swapper/520:30:015
279132480,0sleep70-21swapper/721:12:547
13076994848,0cyclictest0-21swapper/623:05:136
13075994848,0cyclictest0-21swapper/523:25:215
13077994747,0cyclictest0-21swapper/723:47:497
13076994747,0cyclictest0-21swapper/600:04:476
13072994742,5cyclictest0-21swapper/200:30:402
13071994747,0cyclictest0-21swapper/123:16:431
13077994646,0cyclictest0-21swapper/700:37:117
13075994646,0cyclictest0-21swapper/523:39:295
13075994646,0cyclictest0-21swapper/521:40:215
13073994646,0cyclictest0-21swapper/323:45:393
13073994646,0cyclictest0-21swapper/300:13:413
13073994645,0cyclictest0-21swapper/300:15:163
319572450,0sleep20-21swapper/221:46:042
319572450,0sleep20-21swapper/221:46:042
13074994510,34cyclictest0-21swapper/423:20:124
13072994543,1cyclictest1760-21apt-get00:25:132
13071994544,1cyclictest0-21swapper/100:15:171
13071994544,0cyclictest0-21swapper/100:13:281
13070994545,0cyclictest0-21swapper/023:26:160
13070994545,0cyclictest0-21swapper/021:15:120
206112440,0sleep40-21swapper/400:18:194
13077994444,0cyclictest0-21swapper/722:50:177
13073994444,0cyclictest0-21swapper/323:55:163
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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