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2026-08-28 - 11:04
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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
Characteristics of the 100 highest latencies:
System rack1slot1.osadl.org (updated Fri Aug 28, 2026 00:45:13)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
282972212147,22sleep20-21swapper/219:07:352
283652201156,32sleep30-21swapper/319:08:283
284742199163,23sleep00-21swapper/019:09:540
283212197159,25sleep10-21swapper/119:07:541
168382620,0sleep10-21swapper/122:33:021
293972560,0sleep00-21swapper/022:05:140
28585991818,0cyclictest28-21ksoftirqd/200:03:542
28585991817,1cyclictest28-21ksoftirqd/223:45:042
28585991717,0cyclictest28-21ksoftirqd/222:20:032
28585991717,0cyclictest28-21ksoftirqd/221:49:252
28585991717,0cyclictest28-21ksoftirqd/221:27:372
28585991716,1cyclictest28-21ksoftirqd/223:10:392
28585991616,0cyclictest28-21ksoftirqd/221:18:462
28585991515,0cyclictest28-21ksoftirqd/223:59:022
28585991515,0cyclictest28-21ksoftirqd/223:53:432
28585991515,0cyclictest28-21ksoftirqd/222:49:132
28585991515,0cyclictest28-21ksoftirqd/222:37:232
28585991515,0cyclictest28-21ksoftirqd/222:33:222
28585991515,0cyclictest28-21ksoftirqd/222:05:382
28585991515,0cyclictest28-21ksoftirqd/200:33:592
28585991515,0cyclictest28-21ksoftirqd/200:19:182
28585991514,1cyclictest28-21ksoftirqd/223:18:472
28594991414,0cyclictest35-21ksoftirqd/323:15:213
28585991414,0cyclictest28-21ksoftirqd/223:43:122
28585991414,0cyclictest28-21ksoftirqd/223:21:402
28585991414,0cyclictest28-21ksoftirqd/223:08:062
28585991414,0cyclictest28-21ksoftirqd/222:53:052
28585991414,0cyclictest28-21ksoftirqd/222:29:522
28585991414,0cyclictest28-21ksoftirqd/222:17:562
28585991414,0cyclictest28-21ksoftirqd/222:10:092
28585991414,0cyclictest28-21ksoftirqd/221:58:162
28585991414,0cyclictest28-21ksoftirqd/221:30:022
28585991414,0cyclictest28-21ksoftirqd/221:12:202
28585991414,0cyclictest28-21ksoftirqd/219:55:172
28585991313,0cyclictest28-21ksoftirqd/223:00:412
28585991313,0cyclictest28-21ksoftirqd/222:57:082
28585991313,0cyclictest28-21ksoftirqd/222:00:352
28585991313,0cyclictest28-21ksoftirqd/221:20:022
28585991313,0cyclictest28-21ksoftirqd/200:36:552
28585991313,0cyclictest28-21ksoftirqd/200:36:552
28585991313,0cyclictest28-21ksoftirqd/200:22:462
28594991211,1cyclictest35-21ksoftirqd/319:20:013
28594991210,1cyclictest35-21ksoftirqd/323:10:003
28594991210,1cyclictest35-21ksoftirqd/322:20:003
28585991212,0cyclictest28-21ksoftirqd/221:52:272
28585991212,0cyclictest28-21ksoftirqd/221:37:202
28585991212,0cyclictest28-21ksoftirqd/200:29:392
28585991212,0cyclictest28-21ksoftirqd/200:11:172
28570991210,1cyclictest9-21ksoftirqd/020:10:010
2859499119,1cyclictest35-21ksoftirqd/322:45:153
2859499119,1cyclictest35-21ksoftirqd/300:10:143
28594991110,1cyclictest35-21ksoftirqd/321:50:003
2858599118,2cyclictest4326-21/usr/sbin/munin19:25:132
28585991111,0cyclictest28-21ksoftirqd/222:40:092
28585991110,1cyclictest28-21ksoftirqd/223:39:512
28585991110,1cyclictest28-21ksoftirqd/221:44:262
28585991110,1cyclictest28-21ksoftirqd/200:08:112
2857099119,1cyclictest9-21ksoftirqd/019:55:000
2857099119,1cyclictest9-21ksoftirqd/019:20:010
2859499109,1cyclictest35-21ksoftirqd/323:45:153
2859499109,1cyclictest35-21ksoftirqd/322:35:003
2859499109,1cyclictest35-21ksoftirqd/322:05:013
2859499109,1cyclictest35-21ksoftirqd/321:29:593
2859499109,1cyclictest35-21ksoftirqd/320:25:003
2859499109,1cyclictest35-21ksoftirqd/320:10:013
2859499109,1cyclictest35-21ksoftirqd/300:15:183
2859499108,1cyclictest35-21ksoftirqd/323:25:133
2859499108,1cyclictest35-21ksoftirqd/323:20:003
2859499105,3cyclictest22033-21diskmemload23:36:263
2858599109,1cyclictest28-21ksoftirqd/223:25:022
2858599109,1cyclictest28-21ksoftirqd/220:30:012
2858599108,1cyclictest28-21ksoftirqd/219:10:142
2858599106,4cyclictest28-21ksoftirqd/223:30:502
28585991010,0cyclictest28-21ksoftirqd/221:01:312
2857099102,4cyclictest15815-21ls00:05:000
285949998,1cyclictest35-21ksoftirqd/323:30:163
285949998,1cyclictest35-21ksoftirqd/322:20:163
285949998,1cyclictest35-21ksoftirqd/322:10:013
285949998,1cyclictest35-21ksoftirqd/321:35:173
285949998,1cyclictest35-21ksoftirqd/320:15:133
285949998,1cyclictest35-21ksoftirqd/319:35:003
285949998,1cyclictest35-21ksoftirqd/300:05:003
285949997,1cyclictest35-21ksoftirqd/321:10:143
285949997,1cyclictest18703-21latency_hist19:54:593
285949990,7cyclictest733-21sshd23:03:103
285859999,0cyclictest28-21ksoftirqd/220:40:122
285859998,1cyclictest28-21ksoftirqd/220:55:192
285859998,1cyclictest28-21ksoftirqd/220:15:012
285859998,1cyclictest28-21ksoftirqd/220:05:162
285859998,1cyclictest28-21ksoftirqd/219:35:002
285859997,1cyclictest28-21ksoftirqd/219:35:002
285859992,7cyclictest28-21ksoftirqd/220:49:122
285859992,0cyclictest28-21ksoftirqd/220:54:572
285859991,8cyclictest271rcuc/219:40:202
285809990,5cyclictest0-21swapper/100:15:211
285709997,1cyclictest9-21ksoftirqd/019:45:000
285949988,0cyclictest35-21ksoftirqd/321:40:183
285949988,0cyclictest35-21ksoftirqd/319:40:133
285949987,1cyclictest35-21ksoftirqd/322:55:133
285949987,1cyclictest35-21ksoftirqd/322:50:153
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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