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2025-11-16 - 07:58
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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 Sun Nov 16, 2025 00:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
301742301274,17sleep10-21swapper/119:08:081
301322291258,20sleep20-21swapper/219:07:362
299602273239,22sleep30-21swapper/319:05:443
302042261228,21sleep00-21swapper/019:08:310
113642660,0sleep30-21swapper/322:31:433
207712630,0sleep10-21swapper/119:55:241
174322610,0sleep20-21swapper/223:43:142
241062580,0sleep00-21swapper/022:40:210
211392500,0sleep10-21swapper/121:10:111
87472180,0sleep20-21swapper/223:36:572
61422160,0sleep20-21swapper/220:35:222
197372150,0sleep10-21swapper/121:54:331
76722140,0sleep00-21swapper/022:51:220
76122120,0sleep30-21swapper/323:59:453
7245290,0sleep30-21swapper/322:29:353
304329994,3cyclictest19982-21systemd-journal00:17:503
304289993,3cyclictest25704-21munin-run20:10:002
304269995,3cyclictest19982-21systemd-journal23:07:451
304269994,3cyclictest19982-21systemd-journal00:26:361
304219993,3cyclictest928-21munin-run23:10:010
12832290,4sleep112831-21munin-plugin-st21:50:011
11232290,0sleep00-21swapper/023:39:110
304329984,2cyclictest19982-21systemd-journal00:11:473
304329983,3cyclictest7661-21lldpd00:22:403
304329983,3cyclictest19982-21systemd-journal00:32:023
304289986,2cyclictest28-21ksoftirqd/200:05:002
304289985,2cyclictest30654-21snmpd22:51:312
304289984,3cyclictest19982-21systemd-journal21:59:202
304289984,2cyclictest19982-21systemd-journal20:45:012
304289983,3cyclictest19982-21systemd-journal23:33:372
304289983,3cyclictest19982-21systemd-journal20:50:002
304289983,3cyclictest19982-21systemd-journal20:23:232
304289981,4cyclictest9772-21dpkg19:35:002
304289980,7cyclictest4471-21ssh21:20:362
304289980,5cyclictest15726-21run-parts23:20:002
304269984,3cyclictest508-21dbus-daemon22:32:431
304269984,3cyclictest19982-21systemd-journal23:14:511
304269983,3cyclictest19982-21systemd-journal20:08:231
304269982,3cyclictest508-21dbus-daemon22:40:021
304219984,3cyclictest508-21dbus-daemon00:12:250
304219984,3cyclictest32022-21gdbus00:23:430
304219983,4cyclictest0-21swapper/021:34:470
304219983,3cyclictest7661-21lldpd21:08:210
304219983,3cyclictest19982-21systemd-journal21:51:500
304219983,3cyclictest19982-21systemd-journal21:13:520
304219982,3cyclictest4753-21turbostat20:35:000
304219982,3cyclictest25707-21awk20:10:000
304329975,1cyclictest12317-21/usr/sbin/munin19:40:003
304329974,2cyclictest19982-21systemd-journal22:39:563
304329973,3cyclictest24262-21memory23:25:203
304329973,3cyclictest19982-21systemd-journal22:52:443
304329973,3cyclictest19982-21systemd-journal22:01:513
304329973,3cyclictest19982-21systemd-journal22:00:013
304329973,3cyclictest19982-21systemd-journal19:12:133
304329973,2cyclictest19982-21systemd-journal20:30:003
304329973,1cyclictest0-21swapper/323:41:313
304329973,1cyclictest0-21swapper/322:22:293
304329973,1cyclictest0-21swapper/322:17:223
304329972,3cyclictest19982-21systemd-journal21:42:323
304329972,3cyclictest19982-21systemd-journal21:12:363
304329972,3cyclictest19982-21systemd-journal20:51:493
304329971,4cyclictest502-21systemd-logind23:48:133
304329971,3cyclictest30600-21rm21:16:243
304289976,1cyclictest0-21swapper/222:24:082
304289974,2cyclictest508-21dbus-daemon22:29:222
304289974,2cyclictest3033-21cron19:20:022
304289974,2cyclictest19982-21systemd-journal21:50:492
304289974,2cyclictest19982-21systemd-journal21:45:102
304289973,3cyclictest508-21dbus-daemon21:02:352
304289973,3cyclictest19982-21systemd-journal20:55:302
304289973,3cyclictest0-21swapper/223:06:172
304289973,3cyclictest0-21swapper/221:25:072
304289973,1cyclictest0-21swapper/223:50:122
304289973,1cyclictest0-21swapper/223:12:002
304289972,4cyclictest508-21dbus-daemon00:05:202
304289972,3cyclictest19982-21systemd-journal23:59:552
304289971,3cyclictest502-21systemd-logind22:40:392
304269976,1cyclictest0-21swapper/122:25:151
304269974,2cyclictest508-21dbus-daemon20:30:281
304269973,3cyclictest508-21dbus-daemon23:44:541
304269973,3cyclictest508-21dbus-daemon00:11:101
304269973,3cyclictest19982-21systemd-journal22:55:011
304269973,3cyclictest19982-21systemd-journal21:00:001
304269973,3cyclictest19982-21systemd-journal20:48:241
304269973,3cyclictest19982-21systemd-journal19:12:531
304269973,2cyclictest19982-21systemd-journal22:12:381
304269973,1cyclictest0-21swapper/123:36:491
304269973,1cyclictest0-21swapper/123:17:441
304269972,3cyclictest8106-21ls00:25:001
304269972,3cyclictest19982-21systemd-journal19:47:051
304269971,3cyclictest25993-21dump-pmu-power23:05:011
304269970,6cyclictest17067-21cstates21:30:151
304219974,2cyclictest508-21dbus-daemon22:23:070
304219974,2cyclictest19982-21systemd-journal19:11:480
304219973,3cyclictest7884-21cron00:00:000
304219973,3cyclictest508-21dbus-daemon20:00:000
304219973,3cyclictest30654-21snmpd20:23:460
304219973,3cyclictest0-21swapper/022:25:450
304219973,3cyclictest0-21swapper/021:40:010
304219973,1cyclictest0-21swapper/023:34:370
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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