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2025-07-19 - 06:29
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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 rack0slot0.osadl.org (updated Sat Jul 19, 2025 00:45:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1375421180,3sleep71749699cyclictest00:17:537
3272121100,1sleep6671rcuc/622:53:296
3272121100,1sleep6671rcuc/622:53:296
1658721080,1sleep2321ktimersoftd/223:31:162
58922810,0sleep00-21swapper/023:00:280
58922810,0sleep00-21swapper/023:00:280
24812800,0sleep60-21swapper/623:33:126
279522790,0sleep70-21swapper/722:30:067
44512780,1sleep54445-21bash22:24:275
37102760,1sleep6681ktimersoftd/600:37:166
265992750,1sleep7771ktimersoftd/721:24:337
123912750,0sleep10-21swapper/100:00:401
27902740,0sleep50-21swapper/500:23:285
22852730,0sleep7761rcuc/723:43:077
198522730,0sleep30-21swapper/323:18:253
302072720,0sleep70-21swapper/721:34:447
82972700,0sleep60-21swapper/623:50:196
260442700,0sleep10-21swapper/122:39:451
254272700,0sleep60-21swapper/622:26:286
84862690,0sleep50-21swapper/522:47:435
84862690,0sleep50-21swapper/522:47:435
280362690,0sleep50-21swapper/523:55:395
67592680,0sleep70-21swapper/722:40:567
270672660,0sleep10-21swapper/122:07:001
240452640,0sleep70-21swapper/722:52:347
240452640,0sleep70-21swapper/722:52:347
213452630,1sleep4491rcuc/421:53:234
273802620,0sleep70-21swapper/722:00:247
204042600,0sleep00-21swapper/000:25:150
1718926050,6sleep60-21swapper/619:09:346
1719725948,7sleep50-21swapper/519:09:415
113512570,0sleep30-21swapper/322:08:453
171232560,0sleep20-21swapper/222:05:552
285492550,0sleep50-21swapper/522:33:245
275232550,0sleep50-21swapper/521:24:405
1701925141,6sleep40-21swapper/419:07:234
1701325040,6sleep70-21swapper/719:07:177
1697725039,7sleep00-21swapper/019:06:550
21872440,2sleep71749699cyclictest23:10:057
1717724333,6sleep30-21swapper/319:09:223
1709324231,7sleep20-21swapper/219:08:162
1699624231,7sleep10-21swapper/119:07:041
270322310,4sleep61748899cyclictest21:44:126
72442280,0sleep50-21swapper/500:37:395
1745499280,12cyclictest0-21swapper/123:12:191
1745499270,12cyclictest0-21swapper/123:01:591
1745499270,12cyclictest0-21swapper/123:01:591
144212230,4sleep31746799cyclictest21:23:183
49562220,1sleep30-21swapper/321:35:203
49562220,1sleep30-21swapper/321:35:203
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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