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2026-06-09 - 05:15
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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 Jun 09, 2026 00:45:14)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
194882216150,22sleep20-21swapper/219:08:472
195682207169,24sleep00-21swapper/019:09:500
193482203164,25sleep30-21swapper/319:06:593
193802196157,26sleep10-21swapper/119:07:211
22522720,0sleep10-21swapper/122:22:011
305202700,0sleep00-21swapper/022:15:350
208712530,0sleep30-21swapper/323:31:083
191772150,0sleep10-21swapper/122:45:151
1967099130,1cyclictest23239-21/usr/sbin/munin00:20:162
1967099130,1cyclictest0-21swapper/222:10:172
19677991211,1cyclictest35-21ksoftirqd/322:05:013
19677991110,1cyclictest35-21ksoftirqd/322:15:003
19677991110,1cyclictest35-21ksoftirqd/321:20:003
1967099110,0cyclictest0-21swapper/221:49:572
1965799112,4cyclictest25964-21cat23:40:010
1965799110,5cyclictest27458-21latency_hist21:30:000
1967799109,1cyclictest35-21ksoftirqd/323:45:013
1967799100,6cyclictest0-21swapper/322:20:133
1965799109,1cyclictest9-21ksoftirqd/023:55:000
1965799103,6cyclictest14326-21latency_hist22:40:000
1965799100,9cyclictest0-21swapper/019:50:120
1965799100,6cyclictest240-21systemd-journal21:39:550
196779991,5cyclictest7801-21apt-get23:15:093
196709990,1cyclictest0-21swapper/220:00:112
196579998,1cyclictest9-21ksoftirqd/022:09:270
196579998,1cyclictest9-21ksoftirqd/020:40:110
196779987,1cyclictest35-21ksoftirqd/323:25:133
196779986,1cyclictest35-21ksoftirqd/321:03:163
196779986,1cyclictest35-21ksoftirqd/300:35:133
196779986,1cyclictest1029-21snmpd23:00:373
196779986,1cyclictest1029-21snmpd22:09:003
196779986,1cyclictest1029-21snmpd21:24:283
196779986,1cyclictest1029-21snmpd20:16:513
196779986,1cyclictest1029-21snmpd00:07:023
196779981,5cyclictest17400-1kworker/u9:122:45:283
196779980,7cyclictest5531-21kworker/u8:221:56:383
196779980,7cyclictest5531-21kworker/u8:221:56:383
196779980,4cyclictest2839-21apt-get21:40:123
196779980,4cyclictest0-21swapper/321:35:113
196709986,2cyclictest19654-21cyclictest22:41:462
196709986,1cyclictest61650irq/122-eno123:35:132
196709986,1cyclictest61650irq/122-eno122:45:172
196709986,1cyclictest61650irq/122-eno121:25:132
196709980,1cyclictest0-21swapper/222:52:212
196679980,5cyclictest0-21swapper/123:30:111
196579987,1cyclictest1029-21snmpd22:29:560
196579986,1cyclictest1029-21snmpd19:58:050
196579986,1cyclictest1029-21snmpd00:17:480
196579981,6cyclictest10662-21ssh21:50:150
196579980,7cyclictest4707-21ssh23:10:140
196579980,7cyclictest324472sleep023:47:440
196579980,7cyclictest18969-21sed22:00:200
196579980,7cyclictest13921-21ssh23:22:160
196579980,6cyclictest28025-1kworker/u9:123:40:360
196579980,4cyclictest0-21swapper/022:10:130
196579980,1cyclictest14814-21diskstats20:05:170
26040270,1sleep10-21swapper/100:23:181
196779976,1cyclictest35-21ksoftirqd/321:25:153
196779976,1cyclictest35-21ksoftirqd/319:25:153
196779976,1cyclictest12571-21apt-get21:10:113
196779976,1cyclictest1029-21snmpd20:35:213
196779976,1cyclictest1029-21snmpd20:13:413
196779976,1cyclictest1029-21snmpd19:35:043
196779975,1cyclictest3741-21ssh23:52:563
196779975,1cyclictest12663-21ssh21:52:323
196779975,1cyclictest1029-21snmpd23:56:423
196779975,1cyclictest1029-21snmpd20:52:363
196779975,1cyclictest1029-21snmpd20:30:243
196779975,1cyclictest1029-21snmpd19:55:313
196779975,1cyclictest1029-21snmpd19:40:343
196779975,1cyclictest1029-21snmpd19:34:253
196779975,1cyclictest1029-21snmpd19:21:193
196779973,2cyclictest32295-21timerandwakeup00:30:193
196779972,2cyclictest12318-21diskmemload00:11:593
196779971,4cyclictest12318-21diskmemload22:16:043
196779971,4cyclictest1029-21snmpd19:53:323
196779970,6cyclictest0-21swapper/322:34:593
196779970,4cyclictest0-21swapper/321:33:573
196709976,1cyclictest61650irq/122-eno123:24:022
196709976,1cyclictest61650irq/122-eno121:20:102
196709976,1cyclictest61650irq/122-eno121:10:142
196709976,1cyclictest61650irq/122-eno119:50:102
196709976,1cyclictest61650irq/122-eno100:25:162
196709976,1cyclictest61650irq/122-eno100:14:162
196709976,1cyclictest61650irq/122-eno100:01:142
196709976,1cyclictest28525-21cat19:25:162
196709976,1cyclictest1029-21snmpd19:10:402
196709976,0cyclictest61650irq/122-eno123:25:122
196709975,1cyclictest61650irq/122-eno121:35:202
196709975,1cyclictest61650irq/122-eno121:15:122
196709975,1cyclictest61650irq/122-eno100:05:192
196709975,1cyclictest1029-21snmpd22:05:032
196709975,1cyclictest1029-21snmpd20:33:452
196709975,1cyclictest1029-21snmpd00:30:052
196709974,2cyclictest1-21systemd22:57:082
196709974,1cyclictest61650irq/122-eno122:01:512
196709972,3cyclictest28635-21apt-get22:15:092
196709971,0cyclictest0-21swapper/221:31:282
196709970,3cyclictest240-21systemd-journal22:00:012
196709970,3cyclictest240-21systemd-journal22:00:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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