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2026-05-14 - 00:22
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Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 50 million
Resolution of latency scale: reduced 
Duration: 5 hours, 33 minutes
Characteristics of the highest latencies:
System rack8slot1.osadl.org (updated Wed May 13, 2026 12:43:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3056993346532,0cyclictest94822chrt07:18:160
3056992976418,0cyclictest4320-21ntpd07:01:250
3056992909271,0cyclictest28392-1kworker/0:0H08:01:260
30569927921078,0cyclictest30431-21sendmail_mailtr09:51:290
3056992741645,0cyclictest1038-21munin-node10:01:260
3056992700196,0cyclictest28392-1kworker/0:0H11:01:250
3056992620649,0cyclictest9-21ksoftirqd/009:16:260
3056992477731,0cyclictest9351-21latency_hist10:26:250
3056992469725,0cyclictest4207-21snmpd09:26:270
3056992442149,0cyclictest28392-1kworker/0:0H09:01:250
3056992438647,0cyclictest9-21ksoftirqd/009:36:250
3056992414224,0cyclictest28392-1kworker/0:0H08:06:250
3056992387524,0cyclictest1595-21jbd2/hda3-808:41:250
3056992381238,0cyclictest28392-1kworker/0:0H07:56:260
3056992376777,0cyclictest27675-21latency_hist11:21:250
3056992375776,0cyclictest9-21ksoftirqd/010:06:250
3056992356597,0cyclictest9-21ksoftirqd/007:51:290
3056992354755,0cyclictest14254-21latency_hist12:16:250
3056992345751,0cyclictest32220-21cut09:56:250
3056992345661,0cyclictest0-21swapper07:21:260
3056992342679,0cyclictest19406-21munin-node10:56:260
3056992340853,0cyclictest26019-21latency_hist11:16:250
3056992328597,0cyclictest9-21ksoftirqd/012:26:250
3056992321278,0cyclictest28392-1kworker/0:0H11:56:250
3056992320743,0cyclictest11928-21latency_hist07:26:250
3056992314578,0cyclictest9-21ksoftirqd/008:56:260
3056992310726,0cyclictest29744-21latency_hist08:16:250
3056992308258,0cyclictest28392-1kworker/0:0H12:21:250
3056992288264,0cyclictest28392-1kworker/0:0H11:41:260
3056992279249,0cyclictest28392-1kworker/0:0H07:36:260
3056992272582,0cyclictest9-21ksoftirqd/008:21:250
3056992265546,0cyclictest4435-21munin-node07:41:260
3056992255113,0cyclictest28392-1kworker/0:0H08:46:260
3056992249530,0cyclictest10824-21munin-node12:06:260
3056992238242,0cyclictest28392-1kworker/0:0H07:46:260
3056992035286,0cyclictest28392-1kworker/0:0H11:26:260
3056992032595,0cyclictest4852-21cron07:06:260
3056991949245,0cyclictest28392-1kworker/0:0H09:06:250
3056991873213,0cyclictest0-21swapper12:01:250
3056991808133,0cyclictest28392-1kworker/0:0H10:16:260
3056991799572,0cyclictest9-21ksoftirqd/008:36:250
3056991770610,0cyclictest13806-21sendmail_mailtr07:31:280
3056991761245,0cyclictest28392-1kworker/0:0H10:51:290
3056991731256,0cyclictest28392-1kworker/0:0H09:21:320
3056991729614,0cyclictest9-21ksoftirqd/008:11:360
3056991723205,0cyclictest28392-1kworker/0:0H11:11:290
3056991715216,0cyclictest28392-1kworker/0:0H10:46:250
3056991713740,0cyclictest12599-21awk12:11:290
3056991701241,0cyclictest28392-1kworker/0:0H09:41:260
3056991690268,0cyclictest28392-1kworker/0:0H11:06:250
3056991686278,0cyclictest28392-1kworker/0:0H11:31:300
3056991673253,0cyclictest28392-1kworker/0:0H08:51:300
3056991636579,0cyclictest9-21ksoftirqd/010:36:260
3056991597234,0cyclictest28392-1kworker/0:0H11:51:280
3056991594641,0cyclictest9-21ksoftirqd/010:31:350
3056991531255,0cyclictest28392-1kworker/0:0H09:31:340
3056991513586,0cyclictest16352-21mailstats09:11:330
3056991498297,0cyclictest28392-1kworker/0:0H09:51:350
3056991458283,0cyclictest0-21swapper07:13:540
3056991450445,0cyclictest9-21ksoftirqd/008:28:370
3056991434284,0cyclictest9-21ksoftirqd/008:33:440
3056991407383,0cyclictest1595-21jbd2/hda3-810:13:490
3056991396472,0cyclictest6767-21tune2fs11:53:430
3056991395316,0cyclictest1595-21jbd2/hda3-811:38:570
3056991322705,0cyclictest14450-21cron10:41:290
3056991317255,0cyclictest9-21ksoftirqd/010:23:400
305699218164,0cyclictest4450-21runrttasks07:01:180
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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