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2026-01-12 - 02:50
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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 Jan 12, 2026 00:45:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
105742209172,23sleep00-21swapper/019:05:510
106052205167,25sleep20-21swapper/219:06:132
108272201163,25sleep30-21swapper/319:09:083
106092200161,26sleep10-21swapper/119:06:161
68392610,0sleep20-21swapper/200:30:342
196832590,0sleep20-21swapper/223:27:372
244462160,0sleep10-21swapper/122:13:351
1098199140,13cyclictest0-21swapper/222:25:142
1097799140,13cyclictest0-21swapper/122:25:161
1097799130,2cyclictest0-21swapper/122:55:001
31572120,0sleep10-21swapper/100:26:211
10986991210,1cyclictest35-21ksoftirqd/319:20:003
1097799120,0cyclictest0-21swapper/121:55:111
1096999122,5cyclictest20691-21grep23:30:000
1098699110,5cyclictest4020-21diskmemload00:05:113
1098199107,2cyclictest3597-21sh00:27:252
10981991010,0cyclictest0-21swapper/223:06:562
1097799100,2cyclictest0-21swapper/121:50:181
1097799100,1cyclictest0-21swapper/122:21:401
1097799100,0cyclictest0-21swapper/123:19:551
1096999109,1cyclictest9-21ksoftirqd/020:20:000
109869990,6cyclictest436-21apt-get00:25:023
109779990,1cyclictest0-21swapper/122:55:101
109699991,6cyclictest13338-21munin-node23:38:480
109869987,1cyclictest4020-21diskmemload23:58:403
109869986,1cyclictest9480-21netstat21:15:173
109869986,1cyclictest707-21snmpd23:39:483
109869986,1cyclictest707-21snmpd23:04:023
109869986,1cyclictest707-21snmpd22:19:163
109869986,1cyclictest707-21snmpd21:47:343
109869986,1cyclictest707-21snmpd20:52:163
109869986,1cyclictest707-21snmpd20:04:123
109869986,1cyclictest707-21snmpd00:32:343
109819986,1cyclictest707-21snmpd23:46:272
109819986,1cyclictest707-21snmpd20:16:452
109819986,1cyclictest707-21snmpd19:45:212
109819986,1cyclictest707-21snmpd19:24:082
109819986,1cyclictest61650irq/122-eno123:40:132
109819986,1cyclictest61650irq/122-eno122:05:212
109819986,1cyclictest61650irq/122-eno121:45:182
109819986,1cyclictest61650irq/122-eno121:11:242
109819986,1cyclictest61650irq/122-eno100:35:212
109819986,1cyclictest61650irq/122-eno100:00:002
109819980,4cyclictest9098-21apt-get22:35:132
109779982,0cyclictest0-21swapper/100:20:111
109779981,5cyclictest0-21swapper/123:38:481
109779980,7cyclictest0-21swapper/100:30:191
109779980,0cyclictest0-21swapper/121:18:481
109699986,1cyclictest9-21ksoftirqd/019:45:100
109699986,1cyclictest707-21snmpd23:13:120
109699986,1cyclictest707-21snmpd23:02:050
109699986,1cyclictest707-21snmpd20:00:330
109699986,1cyclictest13392-21ssh22:00:110
109699980,1cyclictest5802-21ssh00:30:160
27965270,0sleep30-21swapper/322:58:163
109869977,0cyclictest35-21ksoftirqd/321:50:193
109869975,1cyclictest707-21snmpd23:32:183
109869975,1cyclictest707-21snmpd23:06:003
109869975,1cyclictest707-21snmpd21:43:193
109869975,1cyclictest707-21snmpd20:42:043
109869975,1cyclictest707-21snmpd20:23:323
109869975,1cyclictest707-21snmpd20:17:423
109869975,1cyclictest707-21snmpd19:50:213
109869975,1cyclictest707-21snmpd19:48:073
109869975,1cyclictest707-21snmpd19:25:443
109869975,1cyclictest6973-21ssh23:10:563
109869970,5cyclictest0-21swapper/322:00:113
109869970,4cyclictest0-21swapper/320:35:073
109869970,1cyclictest0-21swapper/320:30:123
109869970,1cyclictest0-21swapper/320:10:133
109869970,0cyclictest0-21swapper/322:50:113
109819976,1cyclictest707-21snmpd19:59:242
109819976,1cyclictest61650irq/122-eno123:11:352
109819976,1cyclictest61650irq/122-eno122:55:472
109819976,1cyclictest61650irq/122-eno122:42:402
109819976,1cyclictest61650irq/122-eno122:15:212
109819976,1cyclictest61650irq/122-eno122:00:332
109819976,1cyclictest61650irq/122-eno121:55:262
109819976,1cyclictest61650irq/122-eno121:16:512
109819975,1cyclictest7743-21ssh21:51:432
109819975,1cyclictest707-21snmpd19:29:002
109819975,1cyclictest707-21snmpd19:10:592
109819975,1cyclictest61650irq/122-eno122:50:152
109819975,1cyclictest61650irq/122-eno120:20:112
109819975,1cyclictest31151-21ssh23:00:422
109819975,1cyclictest17210-21ssh21:25:112
109819975,1cyclictest15147-21ssh21:21:162
109819975,1cyclictest10161-21ntpq23:15:182
109819974,2cyclictest5114-21apt-get22:30:122
109819973,2cyclictest240-21systemd-journal20:15:002
109819972,4cyclictest0-21swapper/220:00:122
109819972,3cyclictest0-21swapper/200:05:102
109819971,6cyclictest0-21swapper/221:42:152
109819971,4cyclictest17009-21apt-get22:45:122
109819971,2cyclictest25177-21apt-get00:15:102
109819970,3cyclictest0-21swapper/219:40:092
109819970,1cyclictest0-21swapper/221:05:102
109779972,1cyclictest79862sleep122:33:031
109779972,1cyclictest206492sleep121:29:061
109779970,3cyclictest0-21swapper/123:10:101
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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