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2026-08-11 - 06:32
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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 Tue Aug 11, 2026 00:45:12)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
162802217151,22sleep00-21swapper/019:06:230
163212200161,25sleep20-21swapper/219:06:532
162412199159,26sleep10-21swapper/119:05:521
163472198160,25sleep30-21swapper/319:07:143
118672210,0sleep00-21swapper/023:28:360
55782170,0sleep30-21swapper/321:48:183
312432140,0sleep30-21swapper/319:35:183
304852140,0sleep10-21swapper/122:22:251
16666991312,1cyclictest0-21swapper/221:55:172
16648991311,1cyclictest9-21ksoftirqd/022:20:000
16666991210,1cyclictest28-21ksoftirqd/200:00:002
1664899123,4cyclictest19016-21munin-node19:15:010
16648991212,0cyclictest9-21ksoftirqd/021:25:130
16648991210,1cyclictest9-21ksoftirqd/022:05:000
16648991210,1cyclictest9-21ksoftirqd/021:45:130
1667399118,1cyclictest240-21systemd-journal19:55:003
1666699119,1cyclictest28-21ksoftirqd/222:20:012
16666991110,1cyclictest28-21ksoftirqd/221:35:202
16666991110,1cyclictest28-21ksoftirqd/221:20:012
1664899119,1cyclictest9-21ksoftirqd/022:55:010
1664899118,1cyclictest9-21ksoftirqd/000:15:000
16648991110,1cyclictest9-21ksoftirqd/022:40:150
16648991110,1cyclictest9-21ksoftirqd/021:55:130
16648991110,1cyclictest9-21ksoftirqd/021:44:590
1664899110,5cyclictest19829-21/usr/sbin/munin23:40:160
1666699109,1cyclictest28-21ksoftirqd/223:49:032
1666699109,1cyclictest28-21ksoftirqd/222:35:172
1666699108,1cyclictest28-21ksoftirqd/223:40:132
1666699108,1cyclictest28-21ksoftirqd/222:20:132
1666699101,8cyclictest3395-21df_inode21:45:152
1664899109,1cyclictest9-21ksoftirqd/023:25:000
1664899109,1cyclictest9-21ksoftirqd/020:20:000
1664899108,1cyclictest9-21ksoftirqd/021:15:170
1664899107,1cyclictest9-21ksoftirqd/022:40:000
1664899107,1cyclictest9-21ksoftirqd/020:35:000
16648991010,0cyclictest9-21ksoftirqd/023:14:590
166669998,1cyclictest28-21ksoftirqd/222:40:182
166669997,1cyclictest28-21ksoftirqd/220:30:122
166669990,2cyclictest0-21swapper/220:25:092
166589991,5cyclictest0-21swapper/121:31:331
166489998,1cyclictest9-21ksoftirqd/023:50:190
166489998,1cyclictest9-21ksoftirqd/019:30:150
166489997,1cyclictest733-21sshd22:59:490
166489993,6cyclictest25053-21kworker/0:123:30:250
166489993,4cyclictest6326-21perf19:55:010
166489990,5cyclictest0-21swapper/020:40:120
166739988,0cyclictest35-21ksoftirqd/323:44:213
166739986,1cyclictest35-21ksoftirqd/320:50:003
166739986,1cyclictest2730-21cat19:45:153
166739986,1cyclictest11301-21snmpd21:56:363
166739986,1cyclictest11301-21snmpd20:50:513
166739986,1cyclictest11301-21snmpd20:27:013
166739986,1cyclictest11301-21snmpd19:33:073
166739986,1cyclictest11301-21snmpd00:38:293
166739982,3cyclictest9697-21diskmemload22:37:473
166739981,2cyclictest7084-21cstates21:50:133
166739980,4cyclictest22932-21taskset00:30:113
166669988,0cyclictest28-21ksoftirqd/221:50:162
166669987,1cyclictest28-21ksoftirqd/220:59:592
166669987,0cyclictest28-21ksoftirqd/223:20:142
166669986,1cyclictest61650irq/122-eno123:35:122
166669983,2cyclictest61650irq/122-eno123:19:172
166669980,2cyclictest0-21swapper/223:04:572
166669980,2cyclictest0-21swapper/219:20:132
166589980,5cyclictest0-21swapper/123:42:461
166589980,4cyclictest0-21swapper/122:15:111
166489988,0cyclictest9-21ksoftirqd/023:16:010
166489988,0cyclictest9-21ksoftirqd/022:25:160
166489988,0cyclictest9-21ksoftirqd/021:35:130
166489987,1cyclictest9-21ksoftirqd/023:05:000
166489987,1cyclictest9-21ksoftirqd/022:05:000
166489987,1cyclictest9-21ksoftirqd/020:45:140
166489986,1cyclictest9-21ksoftirqd/020:40:010
166489986,1cyclictest9-21ksoftirqd/020:14:590
166489986,1cyclictest11301-21snmpd00:28:040
166489983,2cyclictest0-21swapper/020:05:130
166489983,1cyclictest21014-21/usr/sbin/munin22:10:130
166489981,6cyclictest16136-21cpuspeed_turbos00:20:170
166489981,3cyclictest0-21swapper/019:20:120
166489980,7cyclictest812-21wc19:40:190
166489980,7cyclictest19454-21cut23:40:000
166489980,2cyclictest240-21systemd-journal21:35:000
166739976,1cyclictest35-21ksoftirqd/300:06:333
166739975,1cyclictest4648-21ssh23:18:033
166739975,1cyclictest22613-21ssh22:57:213
166739975,1cyclictest11301-21snmpd23:46:223
166739975,1cyclictest11301-21snmpd21:44:593
166739975,1cyclictest11301-21snmpd21:16:283
166739975,1cyclictest11301-21snmpd20:23:033
166739975,1cyclictest11301-21snmpd20:02:233
166739975,1cyclictest11301-21snmpd19:56:153
166739975,1cyclictest11301-21snmpd19:12:073
166739973,2cyclictest25432-21apt-get20:35:113
166739973,1cyclictest24335-21awk21:30:003
166739971,3cyclictest0-21swapper/320:35:003
166739970,6cyclictest12647-21ssh21:13:353
166739970,5cyclictest0-21swapper/300:19:293
166739970,4cyclictest18816-21cat22:05:213
166739970,2cyclictest0-21swapper/322:49:043
166739970,1cyclictest16179-21sh22:02:513
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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