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2026-05-11 - 15:55
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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 May 11, 2026 12:45:19)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
305822225155,56sleep30-21swapper/307:08:323
305972209152,22sleep10-21swapper/107:08:421
306632201162,25sleep20-21swapper/207:09:362
306782199161,24sleep00-21swapper/007:09:450
287412710,1sleep028744-21unixbench_singl12:05:210
98662590,0sleep00-21swapper/009:31:220
107622580,0sleep10-21swapper/108:40:161
3078899140,13cyclictest24451-21ntp_states12:00:192
30795991312,1cyclictest35-21ksoftirqd/312:20:003
30778991311,1cyclictest9-21ksoftirqd/011:45:000
30778991311,1cyclictest9-21ksoftirqd/009:55:170
30778991211,1cyclictest9-21ksoftirqd/011:05:000
30778991210,1cyclictest9-21ksoftirqd/009:45:000
30778991210,1cyclictest9-21ksoftirqd/008:45:010
3078899110,0cyclictest0-21swapper/210:53:552
30778991110,1cyclictest9-21ksoftirqd/010:55:140
34492100,0sleep33431-21perf09:25:013
3079599101,7cyclictest570-21nscd12:05:333
3077899109,1cyclictest9-21ksoftirqd/010:40:120
3077899109,1cyclictest9-21ksoftirqd/010:25:150
3077899109,1cyclictest9-21ksoftirqd/009:15:200
3077899109,1cyclictest9-21ksoftirqd/007:50:200
3077899109,1cyclictest24444-21ntp_states12:00:190
3077899103,6cyclictest9-21ksoftirqd/009:50:000
3077899103,6cyclictest9-21ksoftirqd/009:50:000
3077899103,1cyclictest21660-21ssh11:15:070
30778991010,0cyclictest9-21ksoftirqd/012:10:150
30778991010,0cyclictest9-21ksoftirqd/010:50:150
171682100,0sleep30-21swapper/311:08:393
307959999,0cyclictest35-21ksoftirqd/312:40:003
307959999,0cyclictest35-21ksoftirqd/310:30:003
307959998,1cyclictest35-21ksoftirqd/308:40:003
307889991,7cyclictest0-21swapper/209:35:412
307789999,0cyclictest9-21ksoftirqd/010:30:160
307789998,1cyclictest9-21ksoftirqd/011:20:110
307789998,1cyclictest9-21ksoftirqd/010:35:140
307789998,1cyclictest9-21ksoftirqd/010:35:140
307789998,1cyclictest9-21ksoftirqd/010:15:170
307789998,0cyclictest9-21ksoftirqd/011:45:140
307789997,1cyclictest9-21ksoftirqd/011:10:110
307789997,1cyclictest9-21ksoftirqd/008:25:140
307789997,1cyclictest9-21ksoftirqd/007:21:350
307789997,1cyclictest16747-21grep08:55:000
307959988,0cyclictest35-21ksoftirqd/312:30:143
307959988,0cyclictest35-21ksoftirqd/311:45:003
307959987,1cyclictest35-21ksoftirqd/312:05:003
307959987,1cyclictest35-21ksoftirqd/311:30:123
307959987,1cyclictest35-21ksoftirqd/308:50:013
307959987,1cyclictest35-21ksoftirqd/308:45:003
307959986,1cyclictest35-21ksoftirqd/308:20:013
307959986,1cyclictest23530-21snmpd12:10:563
307959986,1cyclictest23530-21snmpd11:20:283
307959986,1cyclictest23530-21snmpd10:05:033
307959986,1cyclictest23530-21snmpd08:24:033
307959986,1cyclictest16864-21cat07:45:153
307959986,1cyclictest16864-21cat07:45:153
307959983,2cyclictest0-21swapper/309:15:113
307959980,5cyclictest0-21swapper/311:25:013
307959980,4cyclictest0-21swapper/312:25:213
307959980,1cyclictest0-21swapper/310:59:193
307959980,0cyclictest23056-21apt-get08:00:113
307889986,1cyclictest61650irq/122-eno112:10:112
307889986,1cyclictest61650irq/122-eno111:25:182
307889986,1cyclictest61650irq/122-eno111:10:202
307889986,1cyclictest61650irq/122-eno111:05:172
307889986,1cyclictest61650irq/122-eno110:40:002
307889986,1cyclictest61650irq/122-eno110:40:002
307889986,1cyclictest61650irq/122-eno109:57:132
307889986,1cyclictest61650irq/122-eno109:50:122
307889986,1cyclictest23530-21snmpd08:58:232
307889986,1cyclictest1747-21ntpd09:10:592
307889980,4cyclictest0-21swapper/209:46:252
307889980,4cyclictest0-21swapper/209:46:242
307789987,1cyclictest9-21ksoftirqd/008:35:120
307789986,1cyclictest9-21ksoftirqd/012:25:140
307789986,1cyclictest9-21ksoftirqd/010:10:140
307789986,1cyclictest9-21ksoftirqd/008:30:150
307789986,1cyclictest664-21cat09:20:150
307789986,1cyclictest23530-21snmpd11:30:240
307789980,7cyclictest4429-21taskset10:08:060
307959976,1cyclictest4652-21cat09:25:163
307959976,1cyclictest35-21ksoftirqd/312:25:013
307959976,1cyclictest35-21ksoftirqd/311:55:003
307959976,1cyclictest35-21ksoftirqd/310:45:013
307959976,1cyclictest35-21ksoftirqd/308:10:003
307959976,1cyclictest35-21ksoftirqd/307:20:003
307959976,1cyclictest35-21ksoftirqd/307:15:013
307959976,1cyclictest23530-21snmpd11:01:173
307959976,1cyclictest23530-21snmpd10:31:163
307959976,1cyclictest23530-21snmpd10:23:593
307959976,1cyclictest23530-21snmpd08:34:073
307959976,1cyclictest23530-21snmpd07:51:473
307959975,1cyclictest23530-21snmpd07:39:353
307959974,2cyclictest23873-21diskmemload09:46:453
307959974,2cyclictest23873-21diskmemload09:46:453
307959973,1cyclictest11028-21awk07:35:013
307959971,2cyclictest4935-21sh10:50:513
307959971,0cyclictest23873-21diskmemload11:18:103
307889976,1cyclictest61650irq/122-eno112:05:122
307889976,1cyclictest61650irq/122-eno111:21:322
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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