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2026-05-23 - 22:44
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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 792 highest latencies:
System rack6slot5.osadl.org (updated Sat May 23, 2026 12:44:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
10619981094029,3957cyclictest25817-21kworker/0:007:14:150
10619971753788,3336cyclictest25817-21kworker/0:007:18:420
10619964913591,2888cyclictest25817-21kworker/0:007:27:040
10619950392650,2378cyclictest25817-21kworker/0:007:20:070
9502751186,178sleep00-21swapper07:09:420
10619950448,395cyclictest14229-21sshd10:27:060
10619949431,463cyclictest0-21swapper10:54:020
10619948745,380cyclictest2454-21sed12:31:470
10619947344,254cyclictest4894-21runrttasks11:02:330
10619946935,373cyclictest27369-21ssh10:58:410
10619946833,435cyclictest0-21swapper11:28:390
10619946573,378cyclictest11-21ksoftirqd/009:25:120
10619945473,88cyclictest11-21ksoftirqd/011:58:190
10619945164,373cyclictest13-21rcuc/009:35:560
1061994506,382cyclictest4894-21runrttasks11:15:170
10619944851,199cyclictest190152sleep009:23:420
1061994443,379cyclictest12847-21diskmemload12:36:260
1061994419,371cyclictest12847-21diskmemload11:31:310
10619944110,370cyclictest4253-21lldpd08:11:480
10619943862,189cyclictest13333-21awk11:40:530
1061994361,374cyclictest17031-21ssh09:19:370
10619943048,87cyclictest17028-21seq10:35:100
10619942970,300cyclictest30904-21ssh11:06:150
10619942970,185cyclictest18622-21ssh11:53:410
1061994282,356cyclictest12847-21diskmemload10:46:140
10619941837,367cyclictest19622-21munin-node08:00:210
10619941377,336cyclictest0-21swapper12:08:010
10619941123,365cyclictest16026-21ssh10:31:300
10619941049,178cyclictest1585-21ssh09:58:570
10619940855,339cyclictest22901-21ssh12:03:370
10619939940,88cyclictest27309-21ssh09:42:190
10619939936,302cyclictest20700-21ssh10:42:210
10619939931,368cyclictest0-21swapper07:59:350
10619939635,87cyclictest22989-21ssh09:32:060
10619939635,361cyclictest0-21swapper10:23:190
10619939635,301cyclictest3924-21ssh10:04:260
10619939534,361cyclictest0-21swapper07:37:040
10619939231,361cyclictest0-21swapper08:15:270
10619939138,353cyclictest0-21swapper09:00:070
10619939131,360cyclictest0-21swapper08:59:480
1061993886,367cyclictest32368-21timerandwakeup12:26:140
10619938734,353cyclictest11850-21munin-node07:40:560
10619938731,356cyclictest0-21swapper08:30:140
10619938615,355cyclictest14551-21ssh09:12:430
10619938531,354cyclictest0-21swapper08:22:450
10619938510,360cyclictest5456-21ps10:06:360
10619938136,345cyclictest0-21swapper11:22:520
10619938135,346cyclictest0-21swapper08:40:130
10619938035,345cyclictest0-21swapper11:48:440
10619938024,356cyclictest0-21swapper08:08:340
10619937732,345cyclictest0-21swapper07:46:490
10619937723,294cyclictest31616-21ssh09:52:280
1061993758,353cyclictest29718-21munin-node12:20:350
10619937514,360cyclictest8208-21kworker/u2:310:14:200
1061993749,351cyclictest11-21ksoftirqd/008:50:000
10619937431,343cyclictest0-21swapper08:38:560
1061993717,341cyclictest6943-21chrt08:51:550
1061993702,353cyclictest12332-21ssh11:39:250
10619936934,335cyclictest0-21swapper07:50:070
10619936310,339cyclictest1479-21ssh11:14:200
1061993618,339cyclictest9922-21seq10:16:550
10619934988,88cyclictest13-21rcuc/012:14:130
10619934887,248cyclictest13-21rcuc/009:09:560
10619934774,259cyclictest4253-21lldpd08:27:340
10619934574,89cyclictest11-21ksoftirqd/009:47:250
10619934371,258cyclictest9910-21awk07:30:350
10619934270,212cyclictest11-21ksoftirqd/012:17:370
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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