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2025-12-01 - 08:00
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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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rackaslot8.osadl.org (updated Mon Dec 01, 2025 00:44:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
179512290256,22sleep20-21swapper/219:09:152
176372285251,22sleep10-21swapper/119:05:281
177182264228,21sleep00-21swapper/019:06:240
179892254219,22sleep30-21swapper/319:09:443
27062750,0sleep20-21swapper/222:35:172
6762640,0sleep10-21swapper/123:18:521
231062640,0sleep00-21swapper/022:05:070
230502590,0sleep10-21swapper/123:11:161
253172580,0sleep30-21swapper/323:13:213
138562570,0sleep20-21swapper/200:35:212
84962150,1sleep30-21swapper/300:31:223
68652150,0sleep10-21swapper/121:30:481
325702150,0sleep130654-21snmpd20:50:191
28632150,0sleep30-21swapper/320:55:223
138872150,0sleep10-21swapper/121:14:101
70852140,0sleep20-21swapper/223:23:102
232172130,0sleep00-21swapper/021:20:130
18135991210,1cyclictest0-21swapper/221:25:122
1813899119,1cyclictest34-21ksoftirqd/320:40:013
181359992,4cyclictest24181-21apt23:35:002
181319995,3cyclictest508-21dbus-daemon22:19:341
181269996,2cyclictest29421-21cat20:45:140
181269993,3cyclictest13200-21turbostat23:50:000
24822280,0sleep20-21swapper/221:20:522
20627280,0sleep00-21swapper/023:10:140
181389986,1cyclictest4118-21ssh21:29:563
181389986,1cyclictest34-21ksoftirqd/320:20:003
181389983,4cyclictest0-21swapper/323:00:013
181389983,3cyclictest19982-21systemd-journal23:45:013
181389983,3cyclictest19982-21systemd-journal21:57:313
181389983,3cyclictest19982-21systemd-journal21:40:463
181389983,3cyclictest19982-21systemd-journal21:18:223
181389983,3cyclictest19982-21systemd-journal20:28:103
181359984,3cyclictest508-21dbus-daemon21:36:092
181359984,3cyclictest29741-11brltty22:13:422
181359984,3cyclictest19982-21systemd-journal22:47:442
181359984,3cyclictest19982-21systemd-journal00:06:212
181359983,3cyclictest19982-21systemd-journal20:33:092
181319984,3cyclictest19982-21systemd-journal20:21:281
181319983,3cyclictest19982-21systemd-journal23:25:001
181319983,3cyclictest19982-21systemd-journal20:44:001
181269985,2cyclictest502-21systemd-logind23:04:360
8359270,0sleep10-21swapper/100:09:541
181389974,2cyclictest508-21dbus-daemon23:07:573
181389974,2cyclictest508-21dbus-daemon19:20:593
181389973,3cyclictest508-21dbus-daemon21:51:363
181389973,3cyclictest19982-21systemd-journal00:01:223
181389973,3cyclictest11736-21in:imuxsock23:53:503
181389973,3cyclictest0-21swapper/321:46:303
181389973,3cyclictest0-21swapper/321:12:303
181389973,1cyclictest0-21swapper/323:55:453
181389973,1cyclictest0-21swapper/322:35:123
181389973,1cyclictest0-21swapper/322:21:213
181389973,1cyclictest0-21swapper/300:09:563
181389972,3cyclictest19982-21systemd-journal20:53:113
181389972,3cyclictest19982-21systemd-journal19:39:223
181389971,5cyclictest5956-21ssh23:00:023
181389971,3cyclictest19982-21systemd-journal00:10:063
181359976,1cyclictest28-21ksoftirqd/220:40:002
181359974,2cyclictest31324-21cron23:40:002
181359974,2cyclictest30654-21snmpd00:29:172
181359974,2cyclictest1866-21cron23:20:002
181359973,3cyclictest9939-21cat00:10:142
181359973,3cyclictest508-21dbus-daemon21:05:162
181359973,3cyclictest22138-21ntpq19:15:202
181359973,3cyclictest19982-21systemd-journal23:56:452
181359973,3cyclictest19982-21systemd-journal23:52:102
181359973,1cyclictest0-21swapper/200:24:122
181359973,1cyclictest0-21swapper/200:04:222
181359972,4cyclictest30654-21snmpd23:08:392
181359972,3cyclictest7661-21lldpd22:57:182
181359971,4cyclictest26096-21idleruntime-cro21:45:012
181359971,4cyclictest19583-21sshd20:22:182
181319973,3cyclictest508-21dbus-daemon23:44:391
181319973,3cyclictest25413-21irqstats23:35:171
181319973,3cyclictest19982-21systemd-journal22:34:091
181319973,3cyclictest19982-21systemd-journal22:29:091
181319973,3cyclictest19982-21systemd-journal22:22:451
181319973,3cyclictest19982-21systemd-journal19:32:101
181319973,3cyclictest19116-21gdbus00:40:001
181319973,1cyclictest0-21swapper/123:58:331
181319973,1cyclictest0-21swapper/123:34:101
181319973,1cyclictest0-21swapper/122:51:301
181319973,1cyclictest0-21swapper/122:46:541
181319972,3cyclictest19982-21systemd-journal19:27:151
181319970,2cyclictest16190-21munin-run22:45:011
181319970,2cyclictest16190-21munin-run22:45:011
181269975,1cyclictest17769-21ssh00:15:150
181269974,2cyclictest668-21runrttasks20:08:570
181269973,3cyclictest508-21dbus-daemon00:14:160
181269973,3cyclictest30654-21snmpd22:26:200
181269973,3cyclictest30654-21snmpd20:37:190
181269973,3cyclictest21003-21ntpq20:25:180
181269973,3cyclictest17676-21fschecks_time23:30:140
181269973,3cyclictest11736-21in:imuxsock00:30:070
181269973,3cyclictest10394-21fw_packets23:25:140
181269973,3cyclictest0-21swapper/000:37:530
181269973,1cyclictest6389-21munin-run19:55:010
181269973,1cyclictest0-21swapper/022:37:340
181269973,1cyclictest0-21swapper/021:37:360
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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