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2026-06-03 - 18:10
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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 rackeslot2.osadl.org (updated Wed Jun 03, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
17030052720,1sleep01703003-21ssh09:17:250
18541192410,1sleep10-21swapper/110:59:061
1541026992719,4cyclictest134050irq/121-eno109:20:011
1541026992716,3cyclictest0-21swapper/110:19:451
1541026992621,1cyclictest134050irq/121-eno112:05:021
1541026992614,3cyclictest0-21swapper/111:49:381
1541025992619,6cyclictest0-21swapper/012:20:010
1541025992616,4cyclictest1829936-21latency_hist10:40:020
1541027992522,1cyclictest0-21swapper/211:35:012
1541026992515,3cyclictest1840359-21kthreadcore10:49:451
1541026992514,6cyclictest0-21swapper/109:40:031
1541027992421,1cyclictest0-21swapper/209:45:012
1541026992418,2cyclictest134050irq/121-eno109:45:011
1541026992414,3cyclictest1809053-21aten2.4-expect10:29:401
1541025992421,2cyclictest1799653-21awk10:20:000
1541026992320,2cyclictest1568542-21idleruntime-cro07:30:001
1541026992319,3cyclictest1555916-21gpgconf07:20:001
1541026992315,2cyclictest1996-21runrttasks11:54:241
1541026992311,7cyclictest0-21swapper/109:54:071
1541025992317,5cyclictest1989798-21/usr/sbin/munin12:29:480
1541025992317,1cyclictest383433398rtkit-daemon09:42:240
1541025992316,6cyclictest3851705-21mta-sts-daemon08:39:510
1541025992310,8cyclictest1632420-21cut08:24:410
154102599230,5cyclictest1854277-21/usr/sbin/munin10:59:520
1541026992219,2cyclictest1897984-21/usr/sbin/munin11:25:021
1541026992219,2cyclictest1557829-21irqrtprio07:24:461
1541026992213,5cyclictest1996-21runrttasks10:54:151
1541026992212,3cyclictest0-21swapper/111:20:021
1541026992210,4cyclictest1982132-21runrttasks12:24:131
1541025992215,6cyclictest1983034-21/usr/sbin/munin12:24:440
1541025992215,6cyclictest1839073-21aten2.4-expect10:49:390
1541025992213,6cyclictest0-21swapper/011:33:080
1541025992213,5cyclictest1874565-21ptp4l-jitter11:09:510
1541025992211,7cyclictest1580909-21unixbench-2d07:39:530
1541025992211,6cyclictest0-21swapper/011:05:010
2649091210,5phc2sys0-21swapper/308:34:403
2649091210,5phc2sys0-21swapper/308:34:403
1541027992118,1cyclictest0-21swapper/212:29:432
1541026992118,2cyclictest1875153-21wc11:10:011
1541026992118,2cyclictest1776671-21mailstats10:04:511
1541026992118,2cyclictest1688075-21apt-key09:05:001
1541026992118,2cyclictest1574885-21cut07:35:011
1541026992110,6cyclictest0-21swapper/109:21:571
154102599219,5cyclictest1550987-21sort07:19:440
154102599218,3cyclictest3851702-21mta-sts-daemon10:33:080
1541025992114,6cyclictest1783367-21kthreadcore10:09:480
1541025992112,8cyclictest3851702-21mta-sts-daemon09:24:260
1541025992112,5cyclictest1791227-21kthreadcore10:14:480
1541025992111,6cyclictest2009705-21sort12:39:490
1541025992110,7cyclictest1929020-21sh11:47:300
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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