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2026-05-02 - 18:02
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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 May 02, 2026 12:45:21)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
266302221159,24sleep10-21swapper/107:08:551
265922214149,22sleep00-21swapper/007:08:250
263742211152,21sleep30-21swapper/307:05:353
266242206168,24sleep20-21swapper/207:08:522
254792630,0sleep30-21swapper/312:06:363
173322220,0sleep00-21swapper/011:14:270
26795992018,1cyclictest9-21ksoftirqd/009:45:120
31112140,1sleep02679599cyclictest07:25:150
26795991311,1cyclictest9-21ksoftirqd/012:05:150
26813991211,1cyclictest35-21ksoftirqd/311:45:013
2679599127,3cyclictest240-21systemd-journal12:00:010
26795991211,1cyclictest9-21ksoftirqd/010:30:020
26795991210,1cyclictest9-21ksoftirqd/009:40:130
2679599119,1cyclictest9-21ksoftirqd/011:40:150
26795991111,0cyclictest0-21swapper/011:45:270
26795991111,0cyclictest0-21swapper/007:50:170
26795991110,1cyclictest9-21ksoftirqd/012:15:110
26795991110,1cyclictest9-21ksoftirqd/010:25:140
26795991110,1cyclictest9-21ksoftirqd/010:10:120
2679599111,5cyclictest21983-21sed09:54:590
2681399108,1cyclictest35-21ksoftirqd/308:04:593
2679599109,1cyclictest9-21ksoftirqd/010:50:150
2679599109,1cyclictest9-21ksoftirqd/007:30:160
2679599108,1cyclictest9-21ksoftirqd/011:35:130
2679599108,1cyclictest9-21ksoftirqd/010:15:170
2679599108,1cyclictest9-21ksoftirqd/007:45:000
2679599104,3cyclictest9-21ksoftirqd/009:30:150
2679599100,7cyclictest6654-21kworker/0:010:02:550
153822100,0sleep20-21swapper/212:35:572
268139998,1cyclictest35-21ksoftirqd/311:15:013
268139998,1cyclictest35-21ksoftirqd/308:54:593
268139997,1cyclictest35-21ksoftirqd/309:40:193
268139991,6cyclictest19240-21diskmemload11:53:033
268139991,6cyclictest19240-21diskmemload11:53:023
268079999,0cyclictest28-21ksoftirqd/210:31:232
268079990,7cyclictest19240-21diskmemload11:20:162
268079990,6cyclictest6681-21kworker/u8:210:20:532
267959998,1cyclictest9-21ksoftirqd/012:25:130
267959998,1cyclictest9-21ksoftirqd/012:20:150
267959998,1cyclictest9-21ksoftirqd/010:35:120
267959997,1cyclictest9-21ksoftirqd/009:15:000
267959997,1cyclictest9-21ksoftirqd/008:45:000
267959997,1cyclictest9-21ksoftirqd/007:10:120
267959995,1cyclictest9-21ksoftirqd/009:29:220
267959990,1cyclictest240-21systemd-journal10:05:540
26029290,0sleep30-21swapper/308:15:123
268139987,1cyclictest35-21ksoftirqd/311:39:593
268139987,1cyclictest35-21ksoftirqd/310:30:003
268139987,1cyclictest35-21ksoftirqd/308:05:153
268139986,1cyclictest35-21ksoftirqd/310:20:003
268139986,1cyclictest35-21ksoftirqd/307:15:003
268139986,1cyclictest30037-21cat11:30:153
268139986,1cyclictest14292-21cat12:35:163
268139982,2cyclictest28272-21cut10:45:153
268139981,4cyclictest240-21systemd-journal07:30:003
268139981,2cyclictest0-21swapper/309:50:153
268139981,1cyclictest0-21swapper/312:33:193
268139980,4cyclictest0-21swapper/309:26:163
268079986,1cyclictest61650irq/122-eno112:19:592
268079986,1cyclictest61650irq/122-eno112:05:212
268079986,1cyclictest61650irq/122-eno111:45:172
268079986,1cyclictest28-21ksoftirqd/210:44:592
268079986,1cyclictest16421-21unixbench_singl09:45:212
268079981,5cyclictest20152-21apt-get10:35:112
268009980,8cyclictest0-21swapper/110:25:101
268009980,8cyclictest0-21swapper/108:34:301
268009980,7cyclictest0-21swapper/110:40:561
268009980,7cyclictest0-21swapper/110:00:091
267959988,0cyclictest9-21ksoftirqd/008:35:160
267959987,1cyclictest9-21ksoftirqd/012:35:000
267959987,1cyclictest9-21ksoftirqd/012:00:180
267959987,1cyclictest9-21ksoftirqd/010:45:130
267959987,1cyclictest9-21ksoftirqd/008:25:010
267959986,1cyclictest9-21ksoftirqd/012:10:140
267959986,1cyclictest9-21ksoftirqd/011:50:150
267959986,1cyclictest9-21ksoftirqd/011:50:140
267959986,1cyclictest9-21ksoftirqd/011:00:160
267959986,1cyclictest9-21ksoftirqd/010:40:170
267959986,1cyclictest9-21ksoftirqd/010:20:140
267959986,1cyclictest18133-21cpuspeed_turbos11:15:130
267959980,4cyclictest28057-21latency_hist08:20:010
3082270,0sleep10-21swapper/108:35:121
268139976,1cyclictest35-21ksoftirqd/310:55:013
268139976,1cyclictest35-21ksoftirqd/310:25:013
268139976,1cyclictest35-21ksoftirqd/309:59:593
268139976,1cyclictest35-21ksoftirqd/309:15:013
268139975,1cyclictest5870-21ntpq07:30:193
268139975,1cyclictest35-21ksoftirqd/308:30:013
268139975,1cyclictest35-21ksoftirqd/307:44:593
268139975,1cyclictest3469-21sshd10:11:513
268139975,1cyclictest20386-21cat12:00:173
268139974,1cyclictest0-21swapper/312:15:593
268139973,2cyclictest240-21systemd-journal09:07:533
268139972,0cyclictest19240-21diskmemload11:09:393
268139972,0cyclictest19240-21diskmemload11:09:393
268139971,4cyclictest30927-21kworker/u8:210:06:383
268139971,3cyclictest19240-21diskmemload10:00:133
268139970,6cyclictest10275-21ssh09:39:023
268139970,5cyclictest0-21swapper/312:25:573
268139970,4cyclictest0-21swapper/312:20:113
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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