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2025-11-18 - 12:10
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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 Tue Nov 18, 2025 00:44:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
87252282253,18sleep20-21swapper/219:09:222
87232269206,52sleep00-21swapper/019:09:200
86442266233,19sleep30-21swapper/319:08:193
84412260226,22sleep10-21swapper/119:05:591
208112600,0sleep20-21swapper/222:07:592
215762580,0sleep10-21swapper/120:45:221
13582570,0sleep10-21swapper/121:33:351
205402550,0sleep00-21swapper/022:50:260
222872540,0sleep122-21ksoftirqd/123:36:371
97482190,0sleep20-21swapper/200:14:182
111762190,0sleep30-21swapper/323:29:543
88512170,0sleep20-21swapper/222:21:142
137402160,0sleep20-21swapper/221:41:182
103242160,0sleep20-21swapper/223:50:232
284782140,0sleep30-21swapper/323:19:333
59752130,0sleep20-21swapper/221:36:042
235002120,0sleep30-21swapper/322:31:003
88839994,3cyclictest19982-21systemd-journal22:50:153
88839993,5cyclictest0-21swapper/321:15:573
88809995,3cyclictest19982-21systemd-journal23:48:152
88809994,3cyclictest19982-21systemd-journal23:18:212
88809993,3cyclictest31804-21cron20:00:012
88809992,4cyclictest4084-21munin-run00:10:002
88769995,3cyclictest508-21dbus-daemon00:14:561
88719994,3cyclictest19982-21systemd-journal23:51:350
19375290,0sleep00-21swapper/022:28:570
13840290,1sleep313841-21fschecks_time20:30:143
88839984,3cyclictest508-21dbus-daemon00:26:123
88839983,3cyclictest19982-21systemd-journal23:24:283
88839983,3cyclictest19982-21systemd-journal00:02:513
88809984,3cyclictest29741-11brltty23:14:522
88809984,3cyclictest19982-21systemd-journal21:07:492
88809983,3cyclictest19982-21systemd-journal23:00:162
88809980,7cyclictest446-21ssh23:44:352
88769985,2cyclictest22-21ksoftirqd/120:40:001
88769983,3cyclictest19982-21systemd-journal23:09:011
88769983,3cyclictest19982-21systemd-journal20:18:231
88719985,2cyclictest508-21dbus-daemon00:04:560
88719985,2cyclictest30654-21snmpd00:37:590
88719985,2cyclictest30654-21snmpd00:37:590
88719983,3cyclictest19982-21systemd-journal22:45:020
88719983,3cyclictest19982-21systemd-journal21:53:560
88839974,2cyclictest508-21dbus-daemon20:45:203
88839974,2cyclictest30654-21snmpd00:36:443
88839974,2cyclictest30654-21snmpd00:36:433
88839973,3cyclictest508-21dbus-daemon20:39:153
88839973,3cyclictest30654-21snmpd20:57:373
88839973,3cyclictest24905-21sshd19:42:443
88839973,3cyclictest19982-21systemd-journal20:41:453
88839973,3cyclictest19982-21systemd-journal20:41:453
88839973,3cyclictest11961-21awk19:15:133
88839973,2cyclictest19982-21systemd-journal20:55:013
88839973,1cyclictest0-21swapper/322:24:253
88839973,1cyclictest0-21swapper/321:36:473
88839973,1cyclictest0-21swapper/300:10:463
88839972,4cyclictest0-21swapper/321:24:433
88839972,3cyclictest7661-21lldpd21:30:163
88839972,3cyclictest19982-21systemd-journal22:43:353
88839972,3cyclictest19982-21systemd-journal22:15:013
88839972,3cyclictest19982-21systemd-journal00:21:373
88839971,4cyclictest19982-21systemd-journal19:47:063
88809973,3cyclictest7661-21lldpd22:25:192
88809973,3cyclictest0-21swapper/223:26:422
88809973,3cyclictest0-21swapper/200:30:052
88809973,1cyclictest0-21swapper/221:19:362
88809972,4cyclictest29150-21uptime19:50:222
88809972,3cyclictest19982-21systemd-journal19:45:012
88809972,3cyclictest19982-21systemd-journal19:39:342
88809972,3cyclictest19982-21systemd-journal00:26:122
88809972,3cyclictest10849-21sshd19:12:382
88809970,4cyclictest14478-21dump-pmu-power23:10:002
88809970,3cyclictest29309-21ssh22:57:002
88769976,1cyclictest22-21ksoftirqd/123:50:001
88769976,1cyclictest22-21ksoftirqd/100:40:001
88769976,1cyclictest22-21ksoftirqd/100:40:001
88769974,2cyclictest19982-21systemd-journal23:20:171
88769974,2cyclictest11736-21in:imuxsock23:30:001
88769973,3cyclictest7661-21lldpd00:21:571
88769973,3cyclictest19982-21systemd-journal19:55:371
88769973,3cyclictest18006-21cron22:50:011
88769973,3cyclictest0-21swapper/121:58:151
88769973,3cyclictest0-21swapper/121:43:461
88769973,3cyclictest0-21swapper/121:24:071
88769972,3cyclictest19982-21systemd-journal23:18:371
88769970,6cyclictest5137-21grep20:10:201
88769970,6cyclictest0-21swapper/122:45:011
88769970,2cyclictest19982-21systemd-journal22:40:011
88719974,2cyclictest9104-21systemctl23:05:220
88719974,2cyclictest5099-21hddtemp_smartct00:10:140
88719974,2cyclictest12-21ksoftirqd/022:10:130
88719974,2cyclictest11736-21in:imuxsock19:40:010
88719973,3cyclictest31373-21memory00:05:170
88719973,3cyclictest27348-21tail21:00:160
88719973,3cyclictest18220-21sshd19:27:580
88719973,3cyclictest0-21swapper/021:34:100
88719973,1cyclictest0-21swapper/023:27:310
88719973,1cyclictest0-21swapper/023:01:490
88719973,1cyclictest0-21swapper/022:39:250
88719972,4cyclictest0-21swapper/019:20:010
88719972,3cyclictest508-21dbus-daemon20:28:230
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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