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2025-12-07 - 21:28
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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 Dec 07, 2025 12:45:09)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
22952206156,25sleep00-21swapper/007:06:190
23152205157,22sleep30-21swapper/307:06:353
23692198159,26sleep20-21swapper/207:07:172
22362196158,25sleep10-21swapper/107:05:321
59792590,0sleep00-21swapper/011:39:500
92152150,0sleep20-21swapper/209:27:232
2667991412,1cyclictest9-21ksoftirqd/008:00:000
46442130,0sleep30-21swapper/309:20:233
267699130,12cyclictest0-21swapper/111:45:131
2667991210,1cyclictest9-21ksoftirqd/008:55:000
266799120,11cyclictest27799-21diskmemload11:13:430
2684991111,0cyclictest0-21swapper/208:00:182
266799119,1cyclictest9-21ksoftirqd/012:10:000
266799119,1cyclictest9-21ksoftirqd/011:25:010
266799119,1cyclictest9-21ksoftirqd/008:39:590
269099109,1cyclictest35-21ksoftirqd/310:40:143
269099109,1cyclictest35-21ksoftirqd/308:25:013
269099109,1cyclictest35-21ksoftirqd/308:25:003
269099107,1cyclictest35-21ksoftirqd/311:10:013
268499108,1cyclictest28-21ksoftirqd/207:45:002
2684991010,0cyclictest0-21swapper/211:31:172
268499100,9cyclictest0-21swapper/209:19:222
266799108,1cyclictest9-21ksoftirqd/010:45:000
266799102,4cyclictest21316-21munin-run09:45:000
266799100,7cyclictest27799-21diskmemload11:35:000
199622100,0sleep20-21swapper/209:41:022
6169290,1sleep06149-21ssh12:25:120
26909993,2cyclictest3191-21telnet10:50:143
26909991,3cyclictest27799-21diskmemload11:35:273
26909990,4cyclictest31903-21apt-get10:45:113
26909990,1cyclictest1497-21sendmail-mta10:06:083
26849990,6cyclictest2290-21kworker/u8:109:36:292
26849990,4cyclictest0-21swapper/207:25:112
26679998,1cyclictest9-21ksoftirqd/012:30:130
26679998,1cyclictest9-21ksoftirqd/009:40:000
26679997,1cyclictest9-21ksoftirqd/010:55:000
26679992,6cyclictest2290-21kworker/u8:109:25:210
15483290,0sleep00-21swapper/012:37:280
26909987,1cyclictest35-21ksoftirqd/311:30:003
26909987,1cyclictest35-21ksoftirqd/311:10:003
26909987,1cyclictest35-21ksoftirqd/308:40:163
26909986,1cyclictest13899-21cat07:30:163
26909985,1cyclictest35-21ksoftirqd/310:33:153
26909982,2cyclictest10061-21/usr/sbin/munin11:45:153
26909981,6cyclictest16229-21apt-get08:45:113
26909980,7cyclictest27799-21diskmemload12:20:203
26909980,5cyclictest8938-21apt-get08:30:123
26849986,1cyclictest60950irq/123-eno110:10:182
26849986,1cyclictest13457-21perf10:20:002
26849983,2cyclictest254-21systemd-journal12:26:262
26849982,4cyclictest3737-21ntp_states12:20:182
26849981,5cyclictest27869-21apt-get12:10:102
26849981,4cyclictest27799-21diskmemload09:10:132
26849980,1cyclictest254-21systemd-journal12:34:562
26679988,0cyclictest9-21ksoftirqd/010:09:020
26679987,1cyclictest9-21ksoftirqd/009:10:000
26679987,1cyclictest9-21ksoftirqd/008:10:120
26679986,1cyclictest9-21ksoftirqd/007:20:000
26679986,1cyclictest576-21cat10:00:170
26679983,4cyclictest9-21ksoftirqd/008:20:240
26679983,4cyclictest9-21ksoftirqd/008:20:230
26679981,6cyclictest29232-21ssh09:55:160
26679981,4cyclictest27799-21diskmemload10:56:250
26679981,1cyclictest254-21systemd-journal07:44:510
26679980,7cyclictest5731-21ssh09:23:060
26679980,7cyclictest19353-21ssh10:25:330
26679980,1cyclictest84812sleep011:40:500
26679980,1cyclictest254-21systemd-journal11:05:010
21493280,1sleep121-21ksoftirqd/108:55:141
26909976,1cyclictest35-21ksoftirqd/311:19:593
26909976,1cyclictest35-21ksoftirqd/310:10:143
26909976,1cyclictest35-21ksoftirqd/307:44:593
26909976,1cyclictest35-21ksoftirqd/307:15:003
26909976,1cyclictest12171-21cat08:35:163
26909975,1cyclictest27212-21ssh12:09:273
26909975,1cyclictest22809-21ssh12:01:383
26909975,1cyclictest13949-21cat12:35:163
26909973,3cyclictest27799-21diskmemload11:50:103
26909973,2cyclictest29059-21ntp_states12:10:183
26909973,2cyclictest27799-21diskmemload10:55:213
26909973,1cyclictest27799-21diskmemload09:32:533
26909972,4cyclictest27799-21diskmemload10:35:183
26909972,4cyclictest27799-21diskmemload10:35:183
26909972,2cyclictest27799-21diskmemload09:36:413
26909971,3cyclictest27799-21diskmemload10:00:123
26909971,3cyclictest0-21swapper/311:44:553
26909970,4cyclictest27799-21diskmemload11:00:123
26909970,4cyclictest27799-21diskmemload10:25:183
26909970,4cyclictest0-21swapper/309:52:033
26909970,4cyclictest0-21swapper/309:40:123
26909970,3cyclictest27799-21diskmemload12:17:433
26909970,3cyclictest27799-21diskmemload10:23:043
26909970,2cyclictest0-21swapper/310:16:243
26909970,0cyclictest0-21swapper/309:45:273
26849976,1cyclictest60950irq/123-eno112:35:142
26849976,1cyclictest60950irq/123-eno112:08:522
26849976,1cyclictest60950irq/123-eno111:25:152
26849976,1cyclictest60950irq/123-eno111:22:592
26849976,1cyclictest60950irq/123-eno111:05:152
26849976,1cyclictest60950irq/123-eno110:35:162
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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