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2026-01-12 - 04:02
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Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 50 highest latencies:
System rack7slot8.osadl.org (updated Mon Jan 12, 2026 01:44:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
22353211680,12sleep022352-21/usr/sbin/munin19:05:130
29924211817,13sleep029946-21readlink23:35:460
1762321105,12sleep017626-21df_inode22:50:180
13151210918,13sleep011952-21apt-get22:31:360
776621085,12sleep07772-21apt-get00:17:010
25691210812,13sleep024710-21apt-get19:16:200
1450421045,11sleep014506-21fw_forwarded_lo20:35:260
1021021035,15sleep01305-21snmpd20:18:220
1078921005,12sleep010790-21fw_forwarded_lo20:20:270
187272985,12sleep018738-21irqstats20:50:510
23505999735,13cyclictest14759-21kworker/u2:123:07:100
99672935,75sleep010024-21which00:25:420
86652935,11sleep08663-21ntp_states00:20:380
74612935,12sleep07459-21ntp_states22:10:370
2350599939,17cyclictest14825-21munin-run22:40:020
23505999353,23cyclictest0-21swapper/021:53:440
23505999341,38cyclictest0-21swapper/021:28:380
23505999251,24cyclictest0-21swapper/019:13:060
23505999238,17cyclictest198412chrt23:00:050
23505999050,26cyclictest101ktimersoftd/022:00:420
23505999037,35cyclictest23592-21runrttasks21:10:220
23505999033,39cyclictest0-21swapper/021:43:420
23505998850,30cyclictest0-21swapper/019:30:210
23505998843,30cyclictest3650irq/20-4900000019:42:090
23505998841,15cyclictest10250irq/56-4a10000023:57:110
23505998739,19cyclictest25863-21latency_hist21:20:050
23505998738,16cyclictest6009-21cmp22:05:230
109332876,67sleep010936-21df00:30:140
23505998651,22cyclictest101ktimersoftd/021:55:370
23505998648,28cyclictest0-21swapper/023:40:230
23505998645,25cyclictest101ktimersoftd/019:47:050
23505998616,41cyclictest787-21haveged21:45:260
23505998540,12cyclictest20359-21seq20:56:420
311362840,7sleep031129-21apt21:40:020
23505998445,22cyclictest0-21swapper/022:28:510
23505998439,30cyclictest3650irq/20-4900000020:12:060
23505998352,13cyclictest10150irq/55-4a10000022:20:490
23505998336,33cyclictest10250irq/56-4a10000000:03:150
23505998322,18cyclictest27019-21apt-get21:25:040
2350599827,39cyclictest4731-21diskstats00:05:220
23505998257,10cyclictest101ktimersoftd/023:15:020
23505998252,14cyclictest10150irq/55-4a10000023:21:360
23505998243,28cyclictest0-21swapper/021:30:230
23505998142,28cyclictest24775-21runrttasks23:16:460
23505998135,13cyclictest10250irq/56-4a10000023:52:090
23505998134,29cyclictest12947-21seq00:38:390
23505998131,32cyclictest31419-21latency_hist19:40:070
162542815,11sleep00-21swapper/020:41:430
2350599807,16cyclictest1305-21snmpd22:46:100
23505998058,13cyclictest101ktimersoftd/023:00:520
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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