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2026-05-15 - 11:38
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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: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 50 highest latencies:
System rack7slot3.osadl.org (updated Fri May 15, 2026 00:44:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1193399251130cyclictest14799-21ntp_states00:02:150
1193399235203cyclictest15847-21ssh21:46:130
1193399233207cyclictest26842-21ssh22:33:260
1193399233163cyclictest2365-21rs:main0
1193399231205cyclictest27765-21ntpdc22:37:040
1193399231203cyclictest2535-21ssh23:09:320
1193399231199cyclictest2827-21sendmail-mta22:12:430
1193399229204cyclictest2935-21runrttasks19:41:490
1193399228165cyclictest27409-21ntp_states20:16:150
1193399228163cyclictest19888-21sleep22:03:200
1193399227200cyclictest17924-21df_inode21:55:310
1193399226200cyclictest19217-21sleep22:00:450
1193399226198cyclictest16210-21ssh00:09:010
1193399225156cyclictest10792-21ssh21:25:170
1193399224199cyclictest14054-21munin-run23:59:530
1193399224198cyclictest3824-21munin-run23:15:030
1193399224197cyclictest6568-21modprobe21:06:170
1193399224197cyclictest16843-21modprobe00:11:270
1193399224195cyclictest18939-21sort19:40:070
1193399223200cyclictest2935-21runrttasks23:38:330
1193399223197cyclictest26985-21df20:15:100
1193399223197cyclictest1389-21df20:45:040
1193399223160cyclictest15342-21cron19:24:430
1193399223156cyclictest11846-21munin-run21:29:480
1193399222197cyclictest2935-21runrttasks22:46:410
1193399222197cyclictest24799-21munin-node0
1193399222196cyclictest22381-21sort19:55:050
1193399222195cyclictest8239-21netwatch23:34:040
1193399222195cyclictest29342-21chrt22:44:450
1193399221196cyclictest4989-21wc23:19:580
1193399221196cyclictest29207-21grep20:24:580
1193399221195cyclictest2439-21munin-node0
1193399221191cyclictest15495-21df21:45:090
1193399221156cyclictest20354-21df_inode22:05:410
1193399221155cyclictest6364-21cut23:25:450
1193399221155cyclictest32316-21ssh22:56:560
12594222019sleep12596-21grep21:32:090
1193399220195cyclictest23640-21munin-run22:20:000
1193399220159cyclictest5358-21perl23:21:030
1193399219190cyclictest18567-21munin-run00:20:110
1193399219190cyclictest15898-21grep19:26:000
1193399219159cyclictest9476-21munin-run21:19:520
25821221819sleep25822-21latency_hist20:10:060
1193399218192cyclictest23981-21ntp_states20:01:170
1193399218192cyclictest11165-21uname23:46:260
1193399218188cyclictest13685-21memory21:37:020
1193399217192cyclictest2936-21netwatch22:50:440
1193399217191cyclictest1433-21ssh23:04:490
1193399217187cyclictest22592-21memory00:36:500
1193399216191cyclictest31826-21uname20:35:390
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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