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2026-01-02 - 08:14
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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 Fri Jan 02, 2026 00:45:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
192012211150,47sleep30-21swapper/319:05:103
213022210157,27sleep20-21swapper/219:09:562
210502209148,21sleep00-21swapper/019:06:400
210002203165,25sleep10-21swapper/119:06:011
278582150,0sleep20-21swapper/220:25:242
21404991311,1cyclictest28-21ksoftirqd/219:25:002
21381991211,1cyclictest9-21ksoftirqd/000:05:000
2138199120,11cyclictest0-21swapper/020:25:140
2140499119,1cyclictest28-21ksoftirqd/219:55:002
2140499119,1cyclictest28-21ksoftirqd/219:15:002
2140499110,0cyclictest0-21swapper/200:18:352
2138199119,1cyclictest9-21ksoftirqd/023:30:000
2138199119,1cyclictest9-21ksoftirqd/021:05:000
2138199119,1cyclictest2938-21sh23:00:000
2140499109,1cyclictest30501-21ntp_states23:55:212
2140499108,1cyclictest28-21ksoftirqd/222:34:442
2139299100,9cyclictest0-21swapper/100:00:111
2138199108,1cyclictest9-21ksoftirqd/019:40:000
2138199108,1cyclictest9-21ksoftirqd/000:39:590
2138199100,5cyclictest22066-21grep23:39:590
214049990,2cyclictest0-21swapper/219:35:132
213819998,1cyclictest9-21ksoftirqd/019:55:000
213819998,1cyclictest9-21ksoftirqd/019:50:010
213819997,1cyclictest9-21ksoftirqd/023:15:000
214169986,1cyclictest707-21snmpd23:52:423
214169986,1cyclictest707-21snmpd22:05:123
214169986,1cyclictest707-21snmpd20:58:103
214169986,1cyclictest707-21snmpd00:32:173
214169986,1cyclictest35-21ksoftirqd/322:30:003
214169985,1cyclictest35-21ksoftirqd/323:34:553
214169984,3cyclictest18974-21apt-get20:10:113
214169983,2cyclictest31893-21munin-run19:30:003
214169981,4cyclictest8106-21apt-get23:10:123
214169980,7cyclictest13164-21apt-get21:05:123
214049986,1cyclictest707-21snmpd00:14:222
214049986,1cyclictest61650irq/122-eno121:50:212
214049986,1cyclictest61650irq/122-eno120:10:202
214049986,1cyclictest61650irq/122-eno100:40:002
214049983,2cyclictest240-21systemd-journal22:20:002
214049980,7cyclictest0-21swapper/220:20:172
213819987,1cyclictest9-21ksoftirqd/021:10:000
213819986,1cyclictest9-21ksoftirqd/021:20:010
213819986,1cyclictest9-21ksoftirqd/000:15:130
213819986,1cyclictest707-21snmpd21:27:170
213819986,1cyclictest707-21snmpd21:27:170
213819985,0cyclictest0-21swapper/022:52:040
213819984,2cyclictest240-21systemd-journal19:14:550
213819983,4cyclictest0-21swapper/021:45:180
213819982,4cyclictest29337-21apt-get23:55:140
812270,0sleep20-21swapper/221:45:182
214169976,1cyclictest707-21snmpd22:56:293
214169976,1cyclictest707-21snmpd22:45:193
214169976,1cyclictest35-21ksoftirqd/320:46:593
214169975,1cyclictest707-21snmpd23:07:173
214169975,1cyclictest707-21snmpd22:38:073
214169975,1cyclictest707-21snmpd21:37:023
214169975,1cyclictest35-21ksoftirqd/322:05:003
214169972,4cyclictest26764-21munin-run19:20:003
214049976,1cyclictest61650irq/122-eno122:50:132
214049976,1cyclictest61650irq/122-eno120:08:202
214049976,1cyclictest28-21ksoftirqd/221:45:002
214049975,1cyclictest707-21snmpd21:37:082
214049971,2cyclictest16028-21diskstats21:10:162
214049970,1cyclictest0-21swapper/219:55:202
214049970,1cyclictest0-21swapper/219:44:562
213929970,6cyclictest0-21swapper/100:30:351
213929970,4cyclictest0-21swapper/119:35:201
213819977,0cyclictest9-21ksoftirqd/020:45:000
213819976,1cyclictest9-21ksoftirqd/023:55:010
213819976,1cyclictest9-21ksoftirqd/023:41:050
213819976,1cyclictest9-21ksoftirqd/023:05:000
213819976,1cyclictest9-21ksoftirqd/021:25:010
213819976,1cyclictest9-21ksoftirqd/020:50:000
213819976,1cyclictest9-21ksoftirqd/019:45:020
213819976,1cyclictest29772-21apt-get19:25:110
213819975,1cyclictest707-21snmpd22:10:060
213819975,1cyclictest707-21snmpd21:56:090
213819975,1cyclictest15315-21ntpq22:15:180
213819973,2cyclictest240-21systemd-journal22:45:010
213819970,6cyclictest26770-21apt19:20:000
213819970,6cyclictest0-21swapper/023:45:190
213819970,6cyclictest0-21swapper/023:15:140
213819970,6cyclictest0-21swapper/021:44:590
213819970,6cyclictest0-21swapper/019:20:120
213819970,4cyclictest707-21snmpd00:31:440
213819970,1cyclictest27533-21cut21:35:130
214169965,1cyclictest707-21snmpd21:19:473
214169965,1cyclictest3307-21ntpq21:50:173
214169965,1cyclictest24816-21sshd21:28:433
214169965,1cyclictest24816-21sshd21:28:433
214169964,1cyclictest707-21snmpd22:34:313
214169964,1cyclictest707-21snmpd21:20:413
214169964,1cyclictest707-21snmpd20:21:443
214169964,1cyclictest707-21snmpd00:10:353
214169964,1cyclictest707-21snmpd00:01:163
214169964,1cyclictest35-21ksoftirqd/321:10:123
214169964,1cyclictest35-21ksoftirqd/320:30:153
214169962,1cyclictest7354-21/usr/sbin/munin00:15:153
214169961,4cyclictest5879-21/usr/sbin/munin20:50:203
214169961,3cyclictest12836-21apt-get23:20:133
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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