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2025-12-04 - 06:41
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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 Thu Dec 04, 2025 00:45:05)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
255802219157,25sleep10-21swapper/119:06:051
258762212156,24sleep00-21swapper/019:09:540
257822212158,42sleep30-21swapper/319:08:403
256852201161,27sleep20-21swapper/219:07:272
212652620,0sleep00-21swapper/020:05:160
183332590,0sleep10-21swapper/120:00:001
25959991918,1cyclictest28-21ksoftirqd/223:10:132
25959991815,1cyclictest28-21ksoftirqd/200:17:382
25959991815,1cyclictest28-21ksoftirqd/200:17:382
25959991716,1cyclictest28-21ksoftirqd/222:01:042
25959991612,4cyclictest12439-21df_inode22:30:142
25959991312,1cyclictest28-21ksoftirqd/223:30:172
25959991312,0cyclictest28-21ksoftirqd/223:40:192
25959991311,1cyclictest34751/usr/sbin/munin00:35:252
25959991311,1cyclictest28-21ksoftirqd/222:05:152
2595999128,4cyclictest273032chrt20:15:512
25959991211,1cyclictest28-21ksoftirqd/221:50:122
25959991210,1cyclictest28-21ksoftirqd/223:25:002
25959991210,1cyclictest28-21ksoftirqd/221:12:372
25959991210,1cyclictest28-21ksoftirqd/220:25:102
25959991210,1cyclictest28-21ksoftirqd/220:00:142
2595799120,1cyclictest254-21systemd-journal21:53:460
2596099119,1cyclictest4930-21apt-get20:40:133
2596099119,1cyclictest35-21ksoftirqd/321:35:003
2596099119,1cyclictest35-21ksoftirqd/300:00:153
25960991111,0cyclictest35-21ksoftirqd/300:15:203
25960991111,0cyclictest35-21ksoftirqd/300:15:203
2595999119,1cyclictest28-21ksoftirqd/222:40:122
2595999119,1cyclictest28-21ksoftirqd/222:20:162
2595999119,1cyclictest28-21ksoftirqd/222:10:232
2595999119,1cyclictest28-21ksoftirqd/200:06:402
25959991111,0cyclictest28-21ksoftirqd/221:45:222
25959991111,0cyclictest28-21ksoftirqd/200:25:122
25959991110,1cyclictest28-21ksoftirqd/223:58:022
25959991110,1cyclictest28-21ksoftirqd/223:09:332
25959991110,1cyclictest28-21ksoftirqd/222:55:322
25959991110,1cyclictest28-21ksoftirqd/222:25:122
25959991110,1cyclictest28-21ksoftirqd/219:25:002
25959991110,1cyclictest28-21ksoftirqd/200:20:162
25959991110,0cyclictest28-21ksoftirqd/223:50:132
2595999110,10cyclictest60950irq/123-eno121:26:002
2595799119,1cyclictest9-21ksoftirqd/019:15:000
25957991110,1cyclictest9-21ksoftirqd/023:45:000
25957991110,1cyclictest9-21ksoftirqd/022:40:140
25957991110,0cyclictest21745-21ssh00:15:150
25957991110,0cyclictest21745-21ssh00:15:150
2596099109,1cyclictest35-21ksoftirqd/322:25:143
2596099109,1cyclictest35-21ksoftirqd/322:25:013
2596099109,1cyclictest35-21ksoftirqd/322:20:003
2596099109,1cyclictest35-21ksoftirqd/322:20:003
2596099108,1cyclictest35-21ksoftirqd/319:25:003
25960991010,0cyclictest35-21ksoftirqd/323:45:163
2595999109,1cyclictest28-21ksoftirqd/223:49:302
2595999109,1cyclictest28-21ksoftirqd/223:35:182
2595999109,1cyclictest28-21ksoftirqd/223:25:162
2595999109,1cyclictest28-21ksoftirqd/223:15:292
2595999109,1cyclictest28-21ksoftirqd/222:35:162
2595999109,1cyclictest28-21ksoftirqd/222:15:162
2595999109,1cyclictest28-21ksoftirqd/222:15:162
2595999109,1cyclictest28-21ksoftirqd/221:36:442
2595999109,1cyclictest28-21ksoftirqd/221:32:282
2595999109,1cyclictest28-21ksoftirqd/221:15:162
2595999109,1cyclictest28-21ksoftirqd/220:50:152
2595999109,1cyclictest28-21ksoftirqd/200:01:332
2595999108,1cyclictest28-21ksoftirqd/222:50:182
2595999108,1cyclictest28-21ksoftirqd/220:45:002
2595999108,1cyclictest28-21ksoftirqd/220:35:002
25959991010,0cyclictest28-21ksoftirqd/221:56:132
25959991010,0cyclictest28-21ksoftirqd/221:40:122
25959991010,0cyclictest28-21ksoftirqd/221:21:012
2595799109,1cyclictest9-21ksoftirqd/022:55:000
2595799109,1cyclictest9-21ksoftirqd/022:40:000
2595799109,1cyclictest9-21ksoftirqd/022:25:140
2595799109,1cyclictest9-21ksoftirqd/000:10:000
2595799109,1cyclictest1449-21ntpd22:00:550
2595799108,1cyclictest9-21ksoftirqd/023:45:130
2595799105,2cyclictest570-21systemd-logind00:25:210
259609999,0cyclictest35-21ksoftirqd/323:15:013
259609998,1cyclictest35-21ksoftirqd/319:40:003
259609998,0cyclictest35-21ksoftirqd/322:35:143
259599999,0cyclictest323431/usr/sbin/munin00:30:182
259599998,1cyclictest28-21ksoftirqd/222:45:352
259599998,1cyclictest28-21ksoftirqd/221:10:002
259599998,1cyclictest28-21ksoftirqd/220:05:142
259599997,1cyclictest28-21ksoftirqd/219:50:002
259599997,1cyclictest28-21ksoftirqd/219:15:012
259599995,1cyclictest3767-21kworker/u8:019:42:182
259579998,1cyclictest9-21ksoftirqd/023:50:220
259579998,1cyclictest9-21ksoftirqd/023:05:140
259579998,1cyclictest9-21ksoftirqd/019:15:010
259579998,0cyclictest9-21ksoftirqd/022:20:300
259579997,1cyclictest9-21ksoftirqd/022:35:000
259579997,1cyclictest9-21ksoftirqd/020:25:010
259579993,0cyclictest19095-21diskmemload23:32:130
259579991,4cyclictest8632-21latency_hist21:40:000
259579990,5cyclictest254-21systemd-journal19:50:000
25335290,0sleep30-21swapper/321:17:043
259609988,0cyclictest35-21ksoftirqd/322:50:173
259609988,0cyclictest35-21ksoftirqd/322:05:253
259609988,0cyclictest35-21ksoftirqd/321:50:133
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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