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2026-06-25 - 20:52
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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 Thu Jun 25, 2026 12:45:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2864421060,0sleep00-21swapper/007:20:130
281682830,0sleep70-21swapper/709:56:527
268302800,0sleep50-21swapper/509:11:135
266802800,0sleep20-21swapper/212:27:532
66802790,0sleep60-21swapper/611:48:146
111902760,0sleep20-21swapper/212:39:392
65212730,0sleep00-21swapper/012:38:570
98952720,0sleep40-21swapper/411:53:174
260532720,1sleep30-21swapper/310:46:403
260532720,1sleep30-21swapper/310:46:403
181302720,0sleep70-21swapper/709:14:447
113592720,0sleep30-21swapper/312:02:373
7842710,0sleep30-21swapper/310:38:393
7842710,0sleep30-21swapper/310:38:393
237112700,0sleep50-21swapper/510:19:085
197632700,0sleep00-21swapper/011:50:070
192952700,0sleep00-21swapper/010:09:270
181922700,0sleep20-21swapper/211:45:132
88762690,0sleep60-21swapper/609:58:506
231902680,0sleep50-21swapper/511:36:435
160132680,0sleep70-21swapper/712:21:417
132432680,0sleep60-21swapper/612:21:166
55552670,0sleep70-21swapper/710:02:537
41102660,0sleep20-21swapper/211:29:352
210142660,1sleep4501ktimersoftd/412:22:264
36922600,1sleep30-21swapper/310:16:113
2262726049,6sleep50-21swapper/507:08:565
255132580,0sleep00-21swapper/009:51:560
2260525848,6sleep10-21swapper/107:08:361
2236125847,7sleep70-21swapper/707:05:307
2251725633,7sleep60-21swapper/607:07:306
2249525141,6sleep40-21swapper/407:07:124
2249325128,7sleep20-21swapper/207:07:102
2267825040,6sleep00-21swapper/007:09:310
130102450,0sleep313002-21cp09:27:313
2256024130,7sleep30-21swapper/307:07:593
22964992520,4cyclictest0-21swapper/212:12:332
22964992520,4cyclictest0-21swapper/212:12:332
22964992119,1cyclictest0-21swapper/212:06:552
183592210,0sleep70-21swapper/710:31:547
149352210,0sleep40-21swapper/409:41:184
28762200,0sleep00-21swapper/010:25:140
22964992018,1cyclictest80750irq/25-eno1-rx-12:03:592
225062200,0sleep10-21swapper/110:23:291
14472200,0sleep40-21swapper/412:05:434
87822190,0sleep10-21swapper/112:34:411
55202190,1sleep1221rcuc/110:30:111
2298199190,12cyclictest4521-21sshd10:07:154
2295399195,13cyclictest0-21swapper/008:10:150
121382190,1sleep30-21swapper/310:54:013
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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