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2025-12-12 - 10:30
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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 rack5slot7.osadl.org (updated Fri Dec 12, 2025 00:44:09)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
7865224870,14sleep07133-1kworker/u3:017:35:300
88919910413,69cyclictest26623-21/usr/sbin/munin22:45:550
88919910413,28cyclictest17792-21/usr/sbin/munin20:40:260
88919910319,25cyclictest32328-21df19:45:420
88919910228,39cyclictest21240-21sendmail18:49:580
88919910227,64cyclictest0-21swapper20:04:360
88919910226,65cyclictest0-21swapper23:07:590
88919910218,64cyclictest30425-21memory22:56:150
88919910217,23cyclictest13207-21fw_conntrack20:26:030
88919910129,62cyclictest0-21swapper22:44:340
88919910117,24cyclictest28052-21irqstats21:11:040
88919910117,22cyclictest22133-21irqstats22:31:100
88919910116,23cyclictest1564-21df19:50:430
88919910110,28cyclictest23054-21ssh20:55:530
88919910017,46cyclictest12221-21memory22:01:130
88919910017,23cyclictest31946-21munin-run19:44:590
88919910014,25cyclictest31072-21ssh21:20:340
88919910013,72cyclictest0-21swapper22:24:180
88919910012,46cyclictest10841-21switchtime21:56:360
8891999926,62cyclictest0-21swapper21:29:050
8891999917,41cyclictest20382-21fw_conntrack22:25:560
8891999912,62cyclictest29661-21diskmemload21:15:520
8891999912,26cyclictest25400-21ssh21:02:300
8891999830,44cyclictest508-21ssh23:04:380
8891999820,57cyclictest4350-21users21:36:400
8891999817,62cyclictest8166-21df20:10:440
8891999816,61cyclictest16400-21df20:35:420
8891999815,62cyclictest21320-21df20:50:390
8891999814,24cyclictest18526-21sshd18:34:070
8891999811,63cyclictest20929-21munin-run20:49:580
8891999721,60cyclictest0-21swapper22:17:340
8891999714,47cyclictest10538-21ssh20:17:050
8891999621,20cyclictest5253-21ssh21:40:360
8891999615,58cyclictest8161-21ssh21:49:300
8891999613,42cyclictest8832-21ssh21:51:060
8891999610,25cyclictest15761-21ssh20:33:380
8891999518,24cyclictest14893-21munin-run22:09:590
8891999515,61cyclictest6749-21memory20:06:140
8891999515,42cyclictest15556-21memory22:11:190
8891999513,63cyclictest19400-21users18:36:080
8891999510,25cyclictest12063-21grep20:21:440
8891999434,28cyclictest0-21swapper19:58:300
8891999417,57cyclictest23895-21memory22:36:160
8891999416,56cyclictest28793-21memory22:51:170
8891999320,24cyclictest26234-21df21:05:390
8891999311,62cyclictest2713-21grep21:31:430
8891999215,23cyclictest14021-21munin-run18:09:590
8891999211,61cyclictest27217-21tr19:20:570
8891999210,42cyclictest14507-21cat18:10:460
889199919,64cyclictest15616-21grep18:15:570
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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