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2026-09-05 - 10:42
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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 Sat Sep 05, 2026 00:45:12)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
313352213174,25sleep30-21swapper/319:08:523
310772208175,21sleep00-21swapper/019:05:300
311232198159,24sleep20-21swapper/219:06:052
311222197157,26sleep10-21swapper/119:06:051
185382620,0sleep30-21swapper/320:55:163
103872600,0sleep30-21swapper/323:53:503
69512160,1sleep36955-21cpuspeed_turbos21:30:123
3150899160,15cyclictest0-21swapper/023:10:190
3150899134,5cyclictest24140-21latency_hist21:55:000
31508991210,1cyclictest9-21ksoftirqd/023:00:000
3152099110,10cyclictest0-21swapper/119:35:151
3150899119,1cyclictest9-21ksoftirqd/021:20:190
31508991110,1cyclictest9-21ksoftirqd/023:05:010
3150899110,10cyclictest0-21swapper/000:30:170
3153399109,1cyclictest35-21ksoftirqd/319:44:593
3153399109,1cyclictest1747-21ntpd21:48:033
3153399109,1cyclictest13650irq/124-ahci[0000:20:173
3153399100,7cyclictest0-21swapper/323:11:173
3152899108,1cyclictest28-21ksoftirqd/220:05:002
3152099100,9cyclictest0-21swapper/121:05:121
3150899109,1cyclictest9-21ksoftirqd/023:50:000
3150899108,1cyclictest9-21ksoftirqd/023:55:140
315339998,1cyclictest35-21ksoftirqd/300:05:003
315289994,3cyclictest0-21swapper/200:25:392
315289992,7cyclictest0-21swapper/200:10:162
315289990,1cyclictest0-21swapper/221:46:202
315209990,9cyclictest0-21swapper/122:50:131
315089999,0cyclictest9-21ksoftirqd/020:45:000
315089998,1cyclictest9-21ksoftirqd/022:45:160
315089998,1cyclictest9-21ksoftirqd/022:35:000
315089998,1cyclictest9-21ksoftirqd/022:10:140
315089998,1cyclictest9-21ksoftirqd/021:40:170
315089998,1cyclictest9-21ksoftirqd/021:10:130
315089998,1cyclictest9-21ksoftirqd/000:05:010
315089997,1cyclictest9-21ksoftirqd/021:50:010
315089996,2cyclictest9114-21latency_hist22:20:010
315089995,3cyclictest9-21ksoftirqd/021:25:130
315089993,5cyclictest24419-21cat21:10:010
315089993,1cyclictest21289-21runrttasks22:35:190
315089990,4cyclictest31128-21perf22:05:010
315339986,1cyclictest35-21ksoftirqd/320:10:003
315339986,1cyclictest35-21ksoftirqd/319:20:003
315339986,1cyclictest1747-21ntpd23:40:583
315339983,3cyclictest3870-21apt-get23:45:113
315339982,4cyclictest25916-21aten_r1power_fr23:30:103
315289986,1cyclictest61650irq/122-eno123:32:422
315289986,1cyclictest61650irq/122-eno123:00:132
315289986,1cyclictest61650irq/122-eno122:40:162
315289986,1cyclictest61650irq/122-eno119:55:182
315289986,1cyclictest61650irq/122-eno100:35:182
315289986,1cyclictest61650irq/122-eno100:05:102
315289986,1cyclictest14074-21ntpq22:25:172
315289986,1cyclictest11301-21snmpd23:45:022
315289986,1cyclictest11301-21snmpd23:39:342
315289986,1cyclictest11301-21snmpd22:08:402
315289986,1cyclictest11301-21snmpd21:50:572
315289986,1cyclictest11301-21snmpd21:18:242
315289986,1cyclictest11301-21snmpd20:38:112
315289981,6cyclictest27888-21apt-get22:00:112
315289980,7cyclictest0-21swapper/221:57:532
315289980,7cyclictest0-21swapper/200:30:172
315209981,4cyclictest0-21swapper/121:27:321
315209980,5cyclictest0-21swapper/121:30:111
315209980,4cyclictest0-21swapper/119:30:171
315089988,0cyclictest9-21ksoftirqd/022:50:170
315089988,0cyclictest9-21ksoftirqd/022:05:160
315089987,1cyclictest9-21ksoftirqd/019:39:590
315089987,1cyclictest28068-21/usr/sbin/munin21:15:140
315089987,1cyclictest0-21swapper/023:05:100
315089986,1cyclictest9-21ksoftirqd/020:55:000
315089986,1cyclictest9-21ksoftirqd/020:00:000
315089986,1cyclictest11301-21snmpd23:23:500
315089980,4cyclictest7878-21latency_hist20:35:000
315339977,0cyclictest35-21ksoftirqd/323:20:143
315339976,1cyclictest640-21cat00:25:163
315339976,1cyclictest5464-21sh21:27:123
315339976,1cyclictest35-21ksoftirqd/323:19:593
315339976,1cyclictest35-21ksoftirqd/319:25:103
315339976,1cyclictest35-21ksoftirqd/319:15:003
315339976,1cyclictest35-21ksoftirqd/300:39:593
315339976,1cyclictest13644-21unixbench_multi19:35:193
315339976,1cyclictest11301-21snmpd23:08:133
315339976,1cyclictest11301-21snmpd22:02:053
315339976,1cyclictest11301-21snmpd20:51:413
315339976,1cyclictest11301-21snmpd20:12:503
315339976,1cyclictest11301-21snmpd19:53:363
315339976,1cyclictest11301-21snmpd19:46:163
315339976,1cyclictest11301-21snmpd19:20:473
315339975,1cyclictest11301-21snmpd23:04:213
315339972,1cyclictest25143-21/usr/sbin/munin21:10:133
315289976,1cyclictest61650irq/122-eno122:19:142
315289976,1cyclictest61650irq/122-eno121:20:012
315289976,1cyclictest61650irq/122-eno100:20:132
315289976,1cyclictest28-21ksoftirqd/220:10:122
315289976,1cyclictest11301-21snmpd22:50:362
315289976,0cyclictest61650irq/122-eno123:26:072
315289976,0cyclictest61650irq/122-eno121:30:162
315289975,1cyclictest61650irq/122-eno121:40:202
315289975,1cyclictest61650irq/122-eno100:15:292
315289975,1cyclictest11301-21snmpd23:50:022
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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