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2026-09-07 - 03:46
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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 Mon Sep 07, 2026 00:45:15)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
232972239160,27sleep00-21swapper/019:09:010
232972239160,27sleep00-21swapper/019:09:010
232792212150,49sleep20-21swapper/219:08:472
232792212150,49sleep20-21swapper/219:08:462
230372200161,26sleep30-21swapper/319:05:383
230372200161,26sleep30-21swapper/319:05:383
231712198161,24sleep10-21swapper/119:07:211
231712198161,24sleep10-21swapper/119:07:211
241632590,0sleep30-21swapper/320:15:193
289952160,0sleep20-21swapper/220:25:202
23475991511,4cyclictest28-21ksoftirqd/221:10:192
199642140,0sleep10-21swapper/100:19:401
2347599130,13cyclictest0-21swapper/221:50:202
2347599130,12cyclictest0-21swapper/221:38:342
2347599130,12cyclictest0-21swapper/220:05:142
2346899130,12cyclictest0-21swapper/120:05:131
53702120,0sleep00-21swapper/023:58:090
23475991210,1cyclictest28-21ksoftirqd/223:25:142
2347599120,11cyclictest0-21swapper/219:40:222
23466991210,1cyclictest9-21ksoftirqd/020:00:000
2347599119,1cyclictest28-21ksoftirqd/222:25:142
2347599110,11cyclictest0-21swapper/200:27:542
2347599110,0cyclictest0-21swapper/221:21:462
2346699119,1cyclictest9-21ksoftirqd/020:29:590
2346699112,4cyclictest31447-21perf23:50:000
23466991110,1cyclictest9-21ksoftirqd/022:50:000
23466991110,1cyclictest9-21ksoftirqd/000:25:000
265742100,0sleep016122-21diskmemload22:10:080
2348699108,1cyclictest18878-21ssh21:58:343
2347599109,1cyclictest28-21ksoftirqd/223:55:152
2347599109,1cyclictest28-21ksoftirqd/223:00:202
2347599100,7cyclictest22085-21apt-get22:50:142
2347599100,6cyclictest561-21nscd20:11:052
2347599100,4cyclictest0-21swapper/222:20:112
2347599100,10cyclictest0-21swapper/222:15:192
2347599100,1cyclictest0-21swapper/200:31:022
2346699103,3cyclictest22866-21sed22:05:000
2346699102,4cyclictest32053-21sed20:35:000
2346699102,4cyclictest19379-21perf22:00:000
2346699100,7cyclictest30921-21kworker/0:222:30:140
2346699100,7cyclictest30921-21kworker/0:222:30:140
234759998,1cyclictest28-21ksoftirqd/223:40:142
234759998,1cyclictest28-21ksoftirqd/223:20:152
234759998,1cyclictest28-21ksoftirqd/219:35:002
234759997,1cyclictest28-21ksoftirqd/223:05:162
234759997,1cyclictest28-21ksoftirqd/222:55:142
234759990,9cyclictest0-21swapper/222:44:202
234689990,4cyclictest0-21swapper/122:15:221
234669998,1cyclictest9-21ksoftirqd/023:35:000
234669998,1cyclictest9-21ksoftirqd/000:05:010
234669997,1cyclictest9-21ksoftirqd/023:25:130
234669993,6cyclictest12906-21munin-run00:10:010
234669991,4cyclictest1652-21latency_hist00:40:000
234869987,1cyclictest35-21ksoftirqd/300:24:593
234869986,1cyclictest35-21ksoftirqd/320:30:003
234869986,1cyclictest11301-21snmpd23:44:043
234869986,1cyclictest11301-21snmpd23:27:273
234869986,1cyclictest11301-21snmpd22:55:203
234869986,1cyclictest11301-21snmpd22:18:593
234869986,1cyclictest11301-21snmpd21:16:533
234869986,1cyclictest11301-21snmpd20:43:193
234869986,1cyclictest10436-21ssh22:32:083
234869986,1cyclictest10436-21ssh22:32:083
234869984,2cyclictest240-21systemd-journal00:28:583
234759987,1cyclictest28-21ksoftirqd/200:35:202
234759986,1cyclictest61650irq/122-eno122:09:592
234759986,1cyclictest61650irq/122-eno119:50:132
234759986,1cyclictest11301-21snmpd22:31:232
234759986,1cyclictest11301-21snmpd22:31:222
234759986,1cyclictest11301-21snmpd21:25:302
234759986,1cyclictest11301-21snmpd19:19:052
234759986,1cyclictest11301-21snmpd00:13:472
234759983,4cyclictest25817-21munin-node21:58:382
234759981,4cyclictest2298-21kworker/u8:221:30:282
234759980,8cyclictest0-21swapper/200:06:442
234759980,3cyclictest0-21swapper/223:15:132
234669986,1cyclictest9-21ksoftirqd/023:40:000
234669986,1cyclictest9-21ksoftirqd/020:20:130
234669986,1cyclictest11301-21snmpd20:35:310
234669986,1cyclictest11301-21snmpd20:03:150
234669984,2cyclictest16122-21diskmemload23:02:220
234669981,6cyclictest5618-21sh23:11:120
234669981,6cyclictest30925-21ssh21:30:020
234669981,6cyclictest16122-21diskmemload21:25:060
234669981,2cyclictest0-21swapper/021:45:220
234669980,6cyclictest240-21systemd-journal21:00:000
234869977,0cyclictest16122-21diskmemload23:23:593
234869977,0cyclictest0-21swapper/319:32:563
234869976,1cyclictest11301-21snmpd23:13:243
234869976,1cyclictest11301-21snmpd22:44:083
234869976,1cyclictest11301-21snmpd22:37:433
234869976,1cyclictest11301-21snmpd21:22:273
234869976,1cyclictest11301-21snmpd20:31:333
234869975,1cyclictest30256-21ssh23:46:163
234869975,1cyclictest2470-21perf23:54:593
234869975,1cyclictest24364-21ssh23:39:493
234869975,1cyclictest12538-21ssh00:08:483
234869975,1cyclictest11301-21snmpd22:13:513
234869975,1cyclictest11301-21snmpd21:07:353
234869975,1cyclictest11301-21snmpd20:06:453
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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