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2025-09-04 - 06:38
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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 Sep 04, 2025 00:45:27)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1730521120,0sleep70-21swapper/723:16:147
1994621060,0sleep40-21swapper/423:06:344
160192950,1sleep70-21swapper/721:20:267
312992870,1sleep00-21swapper/021:31:570
312992870,1sleep00-21swapper/021:31:560
44702820,0sleep50-21swapper/522:15:225
148522810,0sleep30-21swapper/300:23:093
325582800,1sleep70-21swapper/721:28:507
127742800,0sleep40-21swapper/423:59:144
262722780,2sleep7761rcuc/721:41:177
309202770,0sleep50-21swapper/523:30:555
265432770,4sleep51519999cyclictest22:14:255
216932770,0sleep10-21swapper/121:37:341
216932770,0sleep10-21swapper/121:37:341
17522760,0sleep30-21swapper/300:11:153
294942740,0sleep70-21swapper/723:24:157
188782740,1sleep718877-21sshd21:14:167
22112730,0sleep60-21swapper/621:12:316
132282730,0sleep20-21swapper/222:06:202
64192720,1sleep56420-21grep22:22:105
62422720,0sleep60-21swapper/600:35:316
59602710,0sleep20-21swapper/221:49:142
23732710,1sleep52378-21hwlatdetect20:55:155
176952710,0sleep70-21swapper/723:32:567
79502690,1sleep20-21swapper/221:26:132
62902690,0sleep10-21swapper/122:58:371
62902690,0sleep10-21swapper/122:58:361
22102690,1sleep32209-21sshd23:34:453
211802670,0sleep40-21swapper/400:16:544
168562650,0sleep20-21swapper/222:36:252
12282610,1sleep560-21ksoftirqd/521:38:505
12282610,1sleep560-21ksoftirqd/521:38:505
1476426049,7sleep50-21swapper/519:07:485
1492425949,6sleep70-21swapper/719:09:517
87532580,2sleep51519999cyclictest00:29:205
1459725848,6sleep60-21swapper/619:05:416
103982550,0sleep50-21swapper/523:58:595
1477125040,6sleep30-21swapper/319:07:543
1473424939,6sleep40-21swapper/419:07:234
1476824736,7sleep00-21swapper/019:07:510
1464024130,7sleep10-21swapper/119:06:081
1489924029,7sleep20-21swapper/219:09:302
174082330,0sleep30-21swapper/323:29:403
57322310,0sleep70-21swapper/723:35:057
33742260,4sleep71521199cyclictest22:45:057
159542240,0sleep315956-21sshd00:02:513
15169992414,4cyclictest465-21systemd-journal21:23:530
11712220,0sleep40-21swapper/423:54:344
63522200,1sleep5591ktimersoftd/500:22:085
262752200,1sleep50-21swapper/523:27:105
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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