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2026-06-11 - 12:41
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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 50 highest latencies:
System rackdslot0.osadl.org (updated Thu Jun 11, 2026 00:45:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1484992318,4cyclictest28012-21needreboot23:45:172
1484992212,5cyclictest0-21swapper/219:30:012
148399220,21cyclictest843-21systemd-network20:26:081
148399220,18cyclictest0-21swapper/123:22:111
148399202,17cyclictest0-21swapper/123:11:221
1483992015,4cyclictest30842-21nfsd420:00:191
1484991917,1cyclictest0-21swapper/221:05:002
1484991915,3cyclictest0-21swapper/219:59:332
1484991913,3cyclictest17171-21nvmesmart_nvme023:25:192
148499190,2cyclictest3979-21H222:10:212
148499190,18cyclictest0-21swapper/221:35:122
148499190,16cyclictest3979-21H222:10:212
148399198,11cyclictest0-21swapper/123:55:161
1483991917,1cyclictest0-21swapper/122:53:201
1483991917,1cyclictest0-21swapper/121:25:011
148399190,2cyclictest3981-21H222:10:211
148399190,18cyclictest0-21swapper/122:34:371
148399190,16cyclictest4099-21H222:10:211
1482991917,1cyclictest0-21swapper/022:50:380
1482991911,6cyclictest0-21swapper/023:18:250
148499182,1cyclictest0-21swapper/223:53:112
1484991816,1cyclictest28-21ksoftirqd/219:42:192
1484991816,1cyclictest0-21swapper/223:35:172
1484991816,1cyclictest0-21swapper/220:04:562
1484991816,1cyclictest0-21swapper/219:20:172
1484991815,2cyclictest22162-21munin-run22:40:012
1484991815,2cyclictest13107-21cat23:20:132
1484991813,4cyclictest24880-21latency_hist22:45:012
148499181,2cyclictest28146-21cpuspeed_turbos22:50:132
148499180,17cyclictest0-21swapper/219:17:282
148499180,15cyclictest9830-21sed20:20:162
1483991816,1cyclictest21-21ksoftirqd/122:05:061
1483991816,1cyclictest21-21ksoftirqd/121:51:121
1483991815,1cyclictest0-21swapper/100:28:261
148399181,2cyclictest10539-21expr23:15:121
148399180,17cyclictest5126-21wc19:15:141
148399180,16cyclictest1114-21lldpd19:57:261
1482991816,1cyclictest0-21swapper/022:10:200
1482991815,2cyclictest24955-21sendmail00:40:000
1482991814,3cyclictest25544-21cstates22:45:130
148299181,16cyclictest27937-21sed20:55:010
148299181,16cyclictest11546-21nfsd421:20:180
148299181,15cyclictest3979-21H222:10:210
148299180,2cyclictest3985-21H222:10:210
148299180,1cyclictest3981-21H222:10:210
148299180,17cyclictest4777-21processes20:10:210
148299180,16cyclictest0-21swapper/023:05:130
1484991715,1cyclictest0-21swapper/222:07:002
1484991714,2cyclictest843-21systemd-network21:55:122
1484991714,2cyclictest6227-21ntpq21:10:192
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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