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2026-05-31 - 11:53
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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 Sun May 31, 2026 00:45:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
28302224156,25sleep30-21swapper/319:06:023
28232210150,23sleep10-21swapper/119:05:561
29132201162,26sleep20-21swapper/219:07:062
30402200162,24sleep00-21swapper/019:08:450
265582730,0sleep10-21swapper/119:55:151
272702660,0sleep20-21swapper/200:00:142
148182660,0sleep00-21swapper/023:44:590
91372540,0sleep10-21swapper/122:52:171
214682140,0sleep20-21swapper/223:10:002
322699130,12cyclictest0-21swapper/120:15:171
3220991311,1cyclictest9-21ksoftirqd/022:40:000
3220991311,1cyclictest9-21ksoftirqd/000:14:590
3220991310,3cyclictest9-21ksoftirqd/019:10:190
3242991211,1cyclictest35-21ksoftirqd/321:35:003
3234991211,1cyclictest28-21ksoftirqd/220:40:002
3220991210,1cyclictest9-21ksoftirqd/022:55:010
3220991210,1cyclictest9-21ksoftirqd/022:10:010
322099121,5cyclictest15868-21latency_hist19:35:000
324299111,9cyclictest32675-21/usr/sbin/munin23:25:183
3234991110,1cyclictest28-21ksoftirqd/222:50:152
323499110,7cyclictest5577-21munin-node21:24:052
322699110,10cyclictest0-21swapper/123:38:421
322099119,1cyclictest9-21ksoftirqd/021:50:120
3220991110,1cyclictest9-21ksoftirqd/022:25:130
323499100,10cyclictest0-21swapper/221:37:192
322099109,1cyclictest9-21ksoftirqd/022:00:170
322099109,1cyclictest9-21ksoftirqd/019:30:000
322099108,1cyclictest13491-21grep22:15:140
3703290,0sleep20-21swapper/222:00:322
32429990,6cyclictest0-21swapper/321:40:123
32349997,1cyclictest28-21ksoftirqd/222:20:002
32349997,1cyclictest28-21ksoftirqd/219:20:012
32349997,1cyclictest28-21ksoftirqd/200:25:142
32349997,1cyclictest28-21ksoftirqd/200:25:142
32349994,4cyclictest557-21irqbalance20:08:172
32349993,5cyclictest30525-21apt-get21:55:092
32349992,6cyclictest1029-21snmpd22:23:302
32349990,6cyclictest5577-21munin-node23:28:232
32209998,1cyclictest9-21ksoftirqd/022:45:000
32209998,1cyclictest9-21ksoftirqd/022:25:000
32209997,1cyclictest9-21ksoftirqd/023:50:140
32209997,1cyclictest9-21ksoftirqd/022:10:130
32209997,1cyclictest9-21ksoftirqd/000:05:130
32429987,1cyclictest35-21ksoftirqd/320:35:003
32429986,1cyclictest1029-21snmpd23:57:033
32429986,1cyclictest1029-21snmpd22:45:143
32429986,1cyclictest1029-21snmpd19:20:323
32429986,1cyclictest1029-21snmpd19:19:413
32429983,1cyclictest7629-21ssh23:35:043
32429980,6cyclictest19931-21apt-get00:35:123
32429980,6cyclictest16104-21/usr/sbin/munin19:35:153
32429980,3cyclictest0-21swapper/321:25:133
32349987,1cyclictest28-21ksoftirqd/221:00:002
32349986,1cyclictest61650irq/122-eno123:50:142
32349986,1cyclictest61650irq/122-eno123:19:212
32349986,1cyclictest61650irq/122-eno121:00:192
32349986,1cyclictest28-21ksoftirqd/222:10:012
32349986,1cyclictest28-21ksoftirqd/220:18:322
32349982,6cyclictest5577-21munin-node22:37:512
32349980,6cyclictest11449-21sed22:55:172
32269981,3cyclictest0-21swapper/120:35:121
32269980,5cyclictest0-21swapper/123:45:021
32269980,4cyclictest0-21swapper/121:50:201
32209987,1cyclictest9-21ksoftirqd/023:05:120
32209987,1cyclictest9-21ksoftirqd/022:50:000
32209987,1cyclictest9-21ksoftirqd/021:25:150
32209987,1cyclictest9-21ksoftirqd/021:20:170
32209986,1cyclictest1029-21snmpd22:34:510
32209986,1cyclictest1029-21snmpd21:06:230
32209986,1cyclictest1029-21snmpd21:06:230
32209986,1cyclictest1029-21snmpd19:23:280
32209984,1cyclictest240-21systemd-journal20:59:540
32209981,6cyclictest12245-21tr21:30:120
32209981,4cyclictest0-21swapper/019:35:110
32209981,1cyclictest0-21swapper/023:25:140
32209980,7cyclictest30522-21ssh21:55:090
32209980,7cyclictest26364-21ssh21:49:310
32209980,7cyclictest17998-21users00:30:210
32209980,4cyclictest30284-21sed20:05:000
32429976,1cyclictest1029-21snmpd22:53:343
32429976,1cyclictest1029-21snmpd21:49:003
32429976,1cyclictest1029-21snmpd00:18:213
32429975,1cyclictest25746-21apt-get19:55:113
32429975,1cyclictest1029-21snmpd21:20:083
32429975,1cyclictest1029-21snmpd20:16:453
32429975,1cyclictest1029-21snmpd20:12:513
32429975,1cyclictest1029-21snmpd20:01:393
32429975,1cyclictest1029-21snmpd19:49:513
32429974,2cyclictest28696-21diskmemload23:31:253
32429971,4cyclictest5539-21apt-get22:05:093
32429971,3cyclictest22566-21ssh22:26:313
32429970,6cyclictest8767-21ssh00:20:033
32429970,4cyclictest0-21swapper/323:00:153
32429970,3cyclictest0-21swapper/322:00:543
32349976,1cyclictest61650irq/122-eno123:12:042
32349976,1cyclictest61650irq/122-eno122:40:182
32349976,1cyclictest61650irq/122-eno121:44:322
32349976,1cyclictest61650irq/122-eno120:55:002
32349976,1cyclictest61650irq/122-eno120:30:002
32349976,1cyclictest61650irq/122-eno100:35:212
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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