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2026-01-10 - 22:12
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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 Jan 10, 2026 12:45:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
268262227158,25sleep30-21swapper/307:06:513
269792219153,23sleep20-21swapper/207:08:512
269882201162,26sleep10-21swapper/107:08:581
270562198160,24sleep00-21swapper/007:09:490
53932590,0sleep30-21swapper/310:50:183
238292560,0sleep00-21swapper/010:34:500
2715299150,1cyclictest24513-21cat09:55:000
135502150,0sleep20-21swapper/211:40:202
2715299140,1cyclictest9693-21date07:40:000
2715299140,1cyclictest17281-21cat07:55:120
2716999130,12cyclictest0-21swapper/210:34:382
2715299130,1cyclictest0-21swapper/010:05:180
27176991211,1cyclictest27450-21sh11:19:253
2715299121,2cyclictest0-21swapper/011:55:130
2715299120,1cyclictest0-21swapper/011:53:470
309902110,0sleep10-21swapper/110:01:421
27176991111,0cyclictest35-21ksoftirqd/307:45:003
27176991110,1cyclictest35-21ksoftirqd/311:40:003
2715299115,5cyclictest29785-21sed11:20:190
2715299111,1cyclictest7423-21ssh10:54:180
2715299110,2cyclictest16537-21latency_hist09:45:010
2715299110,1cyclictest19452-21cat12:30:000
2715299110,1cyclictest0-21swapper/007:10:130
2717699109,1cyclictest9549-21munin-plugin-st07:40:003
2717699109,1cyclictest35-21ksoftirqd/309:15:003
2715299108,1cyclictest9-21ksoftirqd/008:05:000
2715299106,4cyclictest10554-21ssh10:16:380
2715299104,5cyclictest7991-21ssh09:34:030
2715299101,1cyclictest632-21grep07:20:130
2715299100,9cyclictest4222-21/usr/sbin/munin10:10:120
2715299100,9cyclictest0-21swapper/010:29:050
2715299100,5cyclictest27140-21cyclictest09:17:080
2715299100,2cyclictest240-21systemd-journal09:00:000
2715299100,1cyclictest6183-21netstat07:30:170
2715299100,1cyclictest15269-21ssh11:44:000
2715299100,1cyclictest13487-21ntpq07:45:170
2715299100,1cyclictest12840-21ps12:20:170
2715299100,1cyclictest0-21swapper/009:55:100
2715299100,0cyclictest0-21swapper/012:15:110
2715299100,0cyclictest0-21swapper/011:37:120
271769998,1cyclictest35-21ksoftirqd/311:30:003
271769997,1cyclictest35-21ksoftirqd/308:30:003
271769990,1cyclictest15876-21cat11:45:013
271699997,1cyclictest28-21ksoftirqd/209:10:002
271529997,1cyclictest23914-21awk08:10:000
271529995,3cyclictest707-21snmpd08:11:530
271529993,5cyclictest9586-21cat09:35:150
271529993,5cyclictest5191-21expr11:30:210
271529993,5cyclictest22982-21ssh12:33:280
271529990,5cyclictest0-21swapper/011:45:030
271529990,4cyclictest31224-21/usr/sbin/munin08:25:210
271529990,4cyclictest0-21swapper/011:10:140
271529990,3cyclictest0-21swapper/010:55:280
271529990,2cyclictest0-21swapper/012:35:120
271529990,1cyclictest31932-21ssh10:03:590
271529990,1cyclictest240-21systemd-journal11:10:000
271529990,1cyclictest240-21systemd-journal08:40:000
271529990,1cyclictest0-21swapper/009:45:130
271529990,0cyclictest0-21swapper/010:24:240
271769987,1cyclictest35-21ksoftirqd/312:05:003
271769987,1cyclictest35-21ksoftirqd/310:10:003
271769987,1cyclictest35-21ksoftirqd/309:35:003
271769980,7cyclictest26486-21apt-get08:15:103
271769980,6cyclictest0-21swapper/310:30:123
271699988,0cyclictest0-21swapper/211:07:492
271699987,1cyclictest28-21ksoftirqd/212:10:002
271699987,1cyclictest28-21ksoftirqd/209:15:002
271699986,1cyclictest707-21snmpd09:26:522
271699986,1cyclictest61650irq/122-eno112:15:222
271699986,1cyclictest61650irq/122-eno111:35:012
271699986,1cyclictest61650irq/122-eno111:32:382
271699986,1cyclictest61650irq/122-eno108:00:002
271699986,1cyclictest28-21ksoftirqd/209:40:002
271699986,1cyclictest16656-21ntpq09:00:172
271699985,1cyclictest61650irq/122-eno112:20:172
271699983,4cyclictest561-21nscd10:18:212
271699980,7cyclictest22445-21kworker/2:208:50:002
271699980,5cyclictest22445-21kworker/2:208:10:002
271619982,1cyclictest0-21swapper/109:59:131
271619981,1cyclictest0-21swapper/111:37:001
271619980,1cyclictest0-21swapper/107:50:191
271529986,1cyclictest707-21snmpd08:40:120
271529985,2cyclictest32652-21ssh10:45:120
271529984,3cyclictest0-21swapper/010:40:190
271529983,4cyclictest2659-21ssh11:28:280
271529983,4cyclictest0-21swapper/009:00:150
271529982,5cyclictest4254-21head12:10:140
271529982,5cyclictest1664-21entropy08:30:150
271529982,5cyclictest1664-21entropy08:30:150
271529982,3cyclictest11482-21perl08:50:130
271529982,1cyclictest8370-21cut08:45:120
271529982,1cyclictest31012-21fschecks_time07:15:140
271529982,1cyclictest29476-21tune2fs08:20:140
271529982,1cyclictest28295-21cstates12:00:110
271529981,0cyclictest0-21swapper/011:16:200
271529980,8cyclictest0-21swapper/009:22:200
271529980,3cyclictest0-21swapper/009:25:370
271529980,3cyclictest0-21swapper/009:13:080
271529980,2cyclictest1-21systemd10:40:000
271529980,1cyclictest1458-21ssh12:05:430
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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