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2026-09-03 - 08:00
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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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack5slot2.osadl.org (updated Thu Sep 03, 2026 00:44:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
251052196180,11sleep10-21swapper/119:09:521
249632190173,12sleep30-21swapper/319:08:053
250802185169,12sleep00-21swapper/019:09:340
248452180162,13sleep20-21swapper/219:06:312
270542490,0sleep10-21swapper/119:10:191
308322420,0sleep10-21swapper/122:35:201
288582420,0sleep10-21swapper/121:45:201
26408290,0sleep026411-21cpuspeed22:50:120
22011290,0sleep30-21swapper/323:53:293
253739980,6cyclictest0-21swapper/322:20:113
253339982,3cyclictest9059-21munin-run21:20:010
2142280,0sleep20-21swapper/222:20:562
253339972,5cyclictest28967-21munin-run21:30:010
253339970,6cyclictest61-21kswapd000:35:120
253739960,5cyclictest20556-21apt-get23:20:023
253339960,3cyclictest21499-21diskmemload23:30:010
253339960,3cyclictest1162-21awk19:25:010
7264250,0sleep00-21swapper/022:40:170
253739955,0cyclictest6990-21kworker/3:223:37:013
253739955,0cyclictest6990-21kworker/3:223:03:273
253739955,0cyclictest6990-21kworker/3:221:45:043
253739955,0cyclictest6990-21kworker/3:221:33:533
253739955,0cyclictest6990-21kworker/3:200:21:483
253739955,0cyclictest12921-21ssh00:05:173
253739954,1cyclictest40-21ksoftirqd/323:00:013
253739954,1cyclictest40-21ksoftirqd/320:15:013
253739952,2cyclictest0-21swapper/319:15:113
253739951,2cyclictest0-21swapper/322:50:113
253739950,5cyclictest19352-21ssh22:45:593
253739950,5cyclictest0-21swapper/323:45:473
253739950,5cyclictest0-21swapper/323:06:573
253739950,5cyclictest0-21swapper/322:35:133
253739950,5cyclictest0-21swapper/321:25:233
253739950,4cyclictest6498-21apt-get20:40:113
253739950,0cyclictest0-21swapper/300:25:313
253609955,0cyclictest0-21swapper/223:13:282
253609950,5cyclictest0-21swapper/223:52:182
253609950,5cyclictest0-21swapper/223:25:412
253609950,5cyclictest0-21swapper/222:15:112
253609950,5cyclictest0-21swapper/221:19:062
253609950,4cyclictest31290-21apt-get20:25:092
253499955,0cyclictest0-21swapper/123:48:261
253499950,5cyclictest0-21swapper/121:53:561
253499950,5cyclictest0-21swapper/121:36:541
253499950,5cyclictest0-21swapper/121:11:531
253339952,3cyclictest28075-21kworker/0:123:44:490
253339952,3cyclictest28075-21kworker/0:119:25:170
253339952,2cyclictest28075-21kworker/0:122:12:370
253739944,0cyclictest6990-21kworker/3:223:25:493
253739944,0cyclictest6990-21kworker/3:222:41:043
253739944,0cyclictest6990-21kworker/3:221:22:413
253739944,0cyclictest6990-21kworker/3:219:41:553
253739944,0cyclictest6990-21kworker/3:219:30:423
253739943,1cyclictest16756-21cpuspeed_turbos19:55:133
253739943,1cyclictest15844-21sed20:55:183
253739942,1cyclictest4702-21ssh00:00:333
253739942,1cyclictest22990-21ssh00:10:163
253739942,1cyclictest16864-21ssh21:40:103
253739941,3cyclictest0-21swapper/321:00:113
253739941,2cyclictest0-21swapper/320:30:113
253739941,2cyclictest0-21swapper/320:25:093
253739941,2cyclictest0-21swapper/319:10:123
253739940,4cyclictest800-21ssh00:15:193
253739940,4cyclictest27835-21apt-get23:40:113
253739940,4cyclictest21499-21diskmemload23:55:113
253739940,4cyclictest1066-21ntp_states21:15:213
253739940,4cyclictest0-21swapper/323:15:093
253739940,4cyclictest0-21swapper/323:15:093
253739940,4cyclictest0-21swapper/322:10:053
253739940,4cyclictest0-21swapper/322:07:003
253739940,4cyclictest0-21swapper/321:55:123
253739940,4cyclictest0-21swapper/321:50:153
253739940,4cyclictest0-21swapper/321:35:133
253739940,4cyclictest0-21swapper/321:10:123
253739940,4cyclictest0-21swapper/320:35:113
253739940,4cyclictest0-21swapper/320:20:173
253739940,4cyclictest0-21swapper/320:00:103
253739940,4cyclictest0-21swapper/319:20:123
253739940,4cyclictest0-21swapper/300:35:133
253739940,4cyclictest0-21swapper/300:30:123
253739940,3cyclictest725-21ssh23:10:093
253739940,3cyclictest26677-21grep20:15:123
253739940,3cyclictest21734-21/usr/sbin/munin22:15:103
253739940,3cyclictest18669-21ssh22:30:013
253739940,3cyclictest11323-21latency_hist20:50:003
253739940,3cyclictest11201-21sshd22:25:243
253739940,3cyclictest0-21swapper/322:00:073
253739940,1cyclictest16182-21latency_hist19:55:013
253739940,1cyclictest0-21swapper/320:55:003
253609944,0cyclictest0-21swapper/222:41:442
253609944,0cyclictest0-21swapper/221:26:142
253609943,1cyclictest28529-21grep23:40:132
253609941,2cyclictest0-21swapper/223:05:112
253609940,4cyclictest4519-21apt-get21:50:172
253609940,4cyclictest24009-21users00:10:212
253609940,4cyclictest11334-21ssh00:37:192
253609940,4cyclictest0-21swapper/223:45:112
253609940,4cyclictest0-21swapper/223:30:122
253609940,4cyclictest0-21swapper/223:20:132
253609940,4cyclictest0-21swapper/223:19:402
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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