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2026-06-20 - 12:57
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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 highest latencies:
System rack6slot5.osadl.org (updated Sat Jun 20, 2026 00:45:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
208119997195191,4525cyclictest20574-21kworker/0:219:11:570
203762581186,205sleep00-21swapper19:07:030
208119952494,79cyclictest11-21ksoftirqd/022:05:330
208119952422,432cyclictest4894-21runrttasks23:01:380
208119952332,476cyclictest3075-21rm23:48:080
208119951623,431cyclictest28100-21open_files23:30:490
208119951524,429cyclictest29419-21python21:00:560
208119951521,422cyclictest22367-21rm00:32:430
208119950992,356cyclictest11-21ksoftirqd/022:40:390
208119949425,398cyclictest4272-21snmpd00:01:400
208119949138,439cyclictest4272-21snmpd21:20:080
208119949138,439cyclictest3609-21ssh22:34:530
208119949052,96cyclictest4797-21missed_timers23:51:330
208119948921,453cyclictest15858-21kworker/u2:223:43:240
208119947937,442cyclictest0-21swapper21:43:530
208119947625,390cyclictest9985-21kworker/u2:221:45:280
208119947122,379cyclictest26833-21ssh22:11:500
208119946547,403cyclictest1129-21cut21:11:560
208119946348,353cyclictest15446-21sh20:25:000
208119946323,425cyclictest32036-21diskmemload23:06:510
208119946125,422cyclictest9920-21ssh22:48:350
208119946124,421cyclictest13764-21rm00:12:300
208119945566,375cyclictest11139-21python00:06:230
20811994543,436cyclictest964-21ssh22:27:190
208119945273,366cyclictest11-21ksoftirqd/019:26:120
208119945222,415cyclictest27049-21kworker/u2:122:56:140
208119945090,347cyclictest345450irq/10-yenta21:56:580
208119945061,376cyclictest5659-21munin-node19:56:100
208119944963,373cyclictest11-21ksoftirqd/023:12:360
208119944924,410cyclictest13317-21sshd20:17:360
208119944822,411cyclictest23107-21ssh00:35:280
208119944753,379cyclictest32036-21diskmemload21:28:210
20811994472,431cyclictest338750irq/10-eth023:25:340
208119944622,409cyclictest23789-21sh19:20:010
208119944572,303cyclictest15864-21kworker/0:000:25:170
208119944474,87cyclictest0-21swapper00:19:520
208119944473,358cyclictest0-21swapper22:24:270
208119944460,210cyclictest6865-21python23:56:290
208119944422,407cyclictest4894-21runrttasks20:30:320
208119944254,365cyclictest32036-21diskmemload22:15:310
208119944073,88cyclictest11-21ksoftirqd/020:27:150
208119943952,373cyclictest24013-21strings23:21:050
208119943869,310cyclictest0-21swapper21:37:290
208119943853,315cyclictest23273-21cat20:45:270
208119943521,399cyclictest11332-21ssh22:51:180
20811994350,374cyclictest22768-21ssh23:18:400
20811994342,370cyclictest4894-21runrttasks19:35:520
208119943259,358cyclictest5446-21rm22:37:400
208119943170,302cyclictest13-21rcuc/000:23:520
208119943054,317cyclictest5744-21ssh21:22:560
208119942924,344cyclictest18885-21ssh21:54:380
208119942363,301cyclictest11-21ksoftirqd/019:24:150
208119941950,356cyclictest0-21swapper20:06:320
208119941127,322cyclictest26625-21sendmail_mailtr20:55:120
208119940959,177cyclictest345450irq/10-yenta21:31:440
208119940947,349cyclictest0-21swapper23:37:170
208119940546,176cyclictest0-21swapper20:39:560
208119939435,359cyclictest0-21swapper20:53:540
208119939237,341cyclictest32036-21diskmemload00:40:220
208119939136,340cyclictest22760-21ssh22:02:230
208119938135,346cyclictest0-21swapper21:05:360
208119938121,360cyclictest0-21swapper19:34:020
208119937947,318cyclictest4349-21dhcdbd20:42:260
208119937636,279cyclictest32451-21ps19:41:100
208119936491,260cyclictest4253-21lldpd19:49:030
208119936292,257cyclictest13-21rcuc/019:50:580
208119936289,260cyclictest4253-21lldpd20:10:350
208119935430,309cyclictest6496-21df20:00:190
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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