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2025-07-12 - 11:10
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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 12, 2025 00:45:28)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1733521090,4sleep11274999cyclictest00:29:411
109772840,11sleep41276999cyclictest22:53:364
295692810,0sleep50-21swapper/500:30:505
49272800,1sleep74925-21bash23:40:107
49272800,1sleep74925-21bash23:40:107
179492790,1sleep30-21swapper/321:30:473
298952780,0sleep50-21swapper/522:52:085
282872780,2sleep30-21swapper/322:55:183
11352780,1sleep40-21swapper/423:16:034
156852770,0sleep081ktimersoftd/022:00:170
316882760,0sleep70-21swapper/721:48:467
251372760,0sleep40-21swapper/421:25:034
233692760,0sleep10-21swapper/100:33:421
164212760,1sleep616399-21sshd00:26:016
130142760,0sleep70-21swapper/721:43:337
37022750,0sleep50-21swapper/519:55:225
274232750,0sleep70-21swapper/723:52:367
253532750,0sleep00-21swapper/000:27:000
250932750,0sleep30-21swapper/322:17:593
48552740,1sleep54849-21sshd22:46:065
309372740,1sleep030942-21unixbench_singl20:50:210
217402740,1sleep1231ktimersoftd/120:35:001
160172740,0sleep30-21swapper/323:27:493
70462730,0sleep30-21swapper/322:09:263
70462730,0sleep30-21swapper/322:09:263
320252730,0sleep40-21swapper/422:28:514
22812730,0sleep30-21swapper/300:03:303
207302730,3sleep41276999cyclictest23:11:224
201882730,0sleep30-21swapper/322:10:383
201882730,0sleep30-21swapper/322:10:383
10292720,0sleep60-21swapper/623:53:166
268362710,0sleep40-21swapper/421:21:504
184932710,0sleep00-21swapper/023:45:010
184932710,0sleep00-21swapper/023:45:000
38552700,0sleep50-21swapper/521:42:355
220632700,1sleep30-21swapper/321:50:583
121862700,0sleep10-21swapper/122:57:011
200312690,1sleep233-21ksoftirqd/222:10:372
200312690,1sleep233-21ksoftirqd/222:10:372
291492680,0sleep00-21swapper/022:52:030
215282680,1sleep00-21swapper/022:20:530
212282670,0sleep40-21swapper/400:19:424
193162670,0sleep00-21swapper/000:12:170
81302650,0sleep60-21swapper/623:43:546
81302650,0sleep60-21swapper/623:43:546
173332640,4sleep71278899cyclictest21:30:437
1244325646,6sleep40-21swapper/419:09:074
6452550,0sleep30-21swapper/322:28:573
311062550,0sleep40-21swapper/400:03:084
1047025444,6sleep10-21swapper/119:05:031
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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