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2026-08-31 - 21:31
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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 rackdslot0.osadl.org (updated Mon Aug 31, 2026 12:46:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2858599276,16cyclictest0-21swapper/107:35:211
2858999230,5cyclictest0-21swapper/209:13:092
2858999230,21cyclictest14253-21nfsd408:35:182
2858099227,1cyclictest101rcuc/010:47:580
28589992113,3cyclictest0-21swapper/211:33:502
28585992119,1cyclictest21-21ksoftirqd/110:40:321
2858099212,13cyclictest0-21swapper/009:10:220
2858099210,1cyclictest0-21swapper/007:22:520
28589992017,2cyclictest399-20systemd-journal09:50:002
28589992014,4cyclictest4099-21H222:10:212
2858599203,2cyclictest3989-21H222:10:211
2858099200,5cyclictest0-21swapper/012:34:100
2858099200,19cyclictest870-21systemd-logind11:19:410
28589991914,4cyclictest1594-21systemd09:22:522
28589991914,1cyclictest0-21swapper/211:50:002
2858999190,17cyclictest0-21swapper/211:19:242
2858999190,16cyclictest3981-21H222:10:212
28585991913,5cyclictest0-21swapper/109:20:161
2858599190,3cyclictest0-21swapper/111:10:151
2858599190,18cyclictest870-21systemd-logind12:18:521
2858599190,16cyclictest3991-21H222:10:211
2858099194,1cyclictest101rcuc/008:18:210
28580991917,1cyclictest0-21swapper/007:40:250
28580991917,1cyclictest0-21swapper/007:40:250
2858099190,1cyclictest455-21plymouthd10:19:390
2858099190,18cyclictest3976-21H222:10:210
2858099190,18cyclictest0-21swapper/011:40:200
2858099190,18cyclictest0-21swapper/007:50:150
2858099190,16cyclictest3991-21H222:10:210
2858099190,16cyclictest3989-21H222:10:210
2858099190,16cyclictest3985-21H222:10:210
2858099190,16cyclictest3983-21H222:10:210
2858999183,9cyclictest18650-21cut07:50:012
2858999182,2cyclictest3976-21H222:10:212
2858999182,1cyclictest0-21swapper/210:16:372
2858999182,15cyclictest0-21swapper/208:23:192
28589991814,3cyclictest3987-21H222:10:212
28589991814,3cyclictest1522-21lxd08:00:452
28589991813,4cyclictest3983-21H222:10:212
2858999180,2cyclictest4035-21H222:10:212
2858999180,2cyclictest3991-21H222:10:212
2858999180,2cyclictest3987-21H222:10:212
2858999180,2cyclictest3985-21H222:10:212
2858999180,2cyclictest3985-21H222:10:212
2858999180,2cyclictest3985-21H222:10:212
2858999180,2cyclictest3979-21H222:10:212
2858999180,2cyclictest3976-21H222:10:212
2858999180,17cyclictest3976-21H222:10:212
2858999180,17cyclictest3976-21H222:10:212
2858999180,17cyclictest29309-21sshd10:58:252
2858999180,16cyclictest4035-21H222:10:212
2858999180,16cyclictest4035-21H222:10:212
2858999180,16cyclictest3981-21H222:10:212
2858599182,1cyclictest7146-21irqstats11:15:171
28585991816,1cyclictest21-21ksoftirqd/108:52:051
28585991816,1cyclictest1100-21snmpd10:25:571
28585991816,1cyclictest0-21swapper/109:38:311
28585991816,1cyclictest0-21swapper/108:15:021
28585991814,3cyclictest3985-21H222:10:211
28585991814,3cyclictest0-21swapper/109:55:201
28585991814,1cyclictest0-21swapper/110:10:161
2858599180,2cyclictest7816-21/usr/sbin/munin07:30:171
2858599180,2cyclictest3985-21H222:10:211
2858599180,2cyclictest3985-21H222:10:211
2858599180,17cyclictest3979-21H222:10:211
2858599180,16cyclictest4099-21H222:10:211
2858599180,15cyclictest27450-21apt-config08:05:011
2858099182,15cyclictest9-21ksoftirqd/009:05:010
2858099182,15cyclictest0-21swapper/009:30:100
28580991818,0cyclictest0-21swapper/010:53:120
28580991816,1cyclictest9-21ksoftirqd/007:58:480
28580991815,2cyclictest7618-21nfsd409:20:160
28580991814,3cyclictest3989-21H222:10:210
28580991814,3cyclictest3981-21H222:10:210
28580991814,3cyclictest27784-21grep10:55:160
28580991814,2cyclictest7283-21logrotate08:25:010
28580991814,2cyclictest4099-21H222:10:210
2858099181,15cyclictest3989-21H222:10:210
2858099180,17cyclictest3989-21H222:10:210
2858099180,17cyclictest101rcuc/008:34:390
2858099180,17cyclictest101rcuc/008:34:390
28589991714,2cyclictest5124-21grep07:25:142
28589991714,2cyclictest3991-21H222:10:212
28589991714,2cyclictest3989-21H222:10:212
28589991714,2cyclictest26944-21apt-key09:00:012
28589991714,2cyclictest21890-21expr08:50:142
28589991714,2cyclictest20230-21tr11:40:142
28589991714,2cyclictest1356-21sed11:05:172
28589991714,2cyclictest11402-21awk10:25:172
2858999170,2cyclictest3983-21H222:10:212
2858999170,2cyclictest3981-21H222:10:212
2858999170,2cyclictest32321-21latency_hist11:05:002
2858999170,2cyclictest27846-21dpkg08:05:012
2858999170,2cyclictest18450-21latency09:40:162
2858999170,16cyclictest5040-21pzem_voltage11:10:182
2858999170,16cyclictest4099-21H222:10:212
2858999170,16cyclictest3991-21H222:10:212
2858999170,16cyclictest3987-21H222:10:212
2858999170,16cyclictest3985-21H222:10:212
2858999170,16cyclictest3985-21H222:10:212
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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