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2025-11-12 - 21:19
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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 Wed Nov 12, 2025 12:44:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
291422327296,19sleep20-21swapper/207:08:232
291882323290,22sleep10-21swapper/107:08:581
291252271238,21sleep00-21swapper/007:08:090
289432262201,47sleep30-21swapper/307:05:463
234172640,0sleep00-21swapper/010:14:000
223582530,0sleep20-21swapper/211:33:392
176572500,0sleep10-21swapper/112:10:181
327152180,0sleep20-21swapper/212:00:042
140792180,0sleep30-21swapper/311:28:313
273892160,1sleep20-21swapper/212:16:032
26632160,0sleep20-21swapper/209:40:272
321652150,0sleep00-21swapper/009:39:320
170482150,0sleep30-21swapper/310:50:153
39682140,0sleep10-21swapper/112:01:451
253842140,0chrt0-21swapper/209:35:092
2939899128,4cyclictest22-21ksoftirqd/110:00:001
29398991210,1cyclictest22-21ksoftirqd/107:40:021
2939899119,2cyclictest22-21ksoftirqd/110:30:011
2939899119,1cyclictest22-21ksoftirqd/110:15:011
2939899119,1cyclictest22-21ksoftirqd/109:20:011
2939899119,1cyclictest22-21ksoftirqd/109:20:011
29398991110,1cyclictest22-21ksoftirqd/111:29:591
301672100,0sleep10-21swapper/111:18:201
2939899109,1cyclictest22-21ksoftirqd/111:00:011
2939899108,1cyclictest22-21ksoftirqd/112:20:001
2939899108,1cyclictest22-21ksoftirqd/107:45:021
2939899107,2cyclictest22-21ksoftirqd/109:10:001
2939899106,3cyclictest211rcuc/108:45:101
2939899106,2cyclictest27679-21kworker/u8:209:24:161
294079994,3cyclictest19982-21systemd-journal11:02:573
294039994,3cyclictest19982-21systemd-journal10:47:312
293989998,1cyclictest22-21ksoftirqd/112:25:001
293989998,1cyclictest22-21ksoftirqd/110:55:001
293989994,3cyclictest19982-21systemd-journal12:00:011
293949994,3cyclictest19982-21systemd-journal07:45:370
26666290,1sleep00-21swapper/012:15:280
294079987,1cyclictest34-21ksoftirqd/310:25:003
294079987,1cyclictest34-21ksoftirqd/308:00:013
294079985,2cyclictest508-21dbus-daemon09:55:483
294079984,3cyclictest19982-21systemd-journal10:30:003
294079983,3cyclictest19982-21systemd-journal12:25:013
294079980,7cyclictest587-21sshd09:40:023
294039983,3cyclictest19982-21systemd-journal08:51:322
294039983,3cyclictest19982-21systemd-journal08:40:012
294039982,3cyclictest6575-21awk07:30:012
294039981,6cyclictest29741-11brltty07:21:002
294039981,6cyclictest29741-11brltty07:21:002
293989987,1cyclictest22-21ksoftirqd/111:05:011
293989987,1cyclictest22-21ksoftirqd/110:50:001
293989987,1cyclictest22-21ksoftirqd/107:15:011
293989985,2cyclictest22-21ksoftirqd/108:00:001
293989984,3cyclictest508-21dbus-daemon07:30:021
293989983,3cyclictest19982-21systemd-journal08:44:511
293989982,3cyclictest16247-21awk09:50:011
293949987,1cyclictest12-21ksoftirqd/010:35:000
293949984,3cyclictest19982-21systemd-journal09:48:420
293949983,3cyclictest19982-21systemd-journal09:25:010
2548280,0sleep30-21swapper/311:40:523
11792280,0sleep10-21swapper/112:26:581
294079976,1cyclictest331rcuc/308:20:163
294079974,2cyclictest508-21dbus-daemon10:30:263
294079974,2cyclictest508-21dbus-daemon07:48:073
294079974,2cyclictest34-21ksoftirqd/309:25:003
294079974,2cyclictest11738-21rs:main3
294079974,2cyclictest11154-21ssh10:46:143
294079973,3cyclictest9397-21ntpq11:45:193
294079973,3cyclictest7789-21ntpq07:30:163
294079973,3cyclictest508-21dbus-daemon12:03:023
294079973,3cyclictest30654-21snmpd09:36:103
294079973,3cyclictest30654-21snmpd09:31:373
294079973,3cyclictest0-21swapper/312:31:213
294079973,3cyclictest0-21swapper/309:15:213
294079973,3cyclictest0-21swapper/309:15:213
294079973,1cyclictest0-21swapper/309:48:253
294039974,2cyclictest502-21systemd-logind12:10:582
294039974,2cyclictest28-21ksoftirqd/209:10:002
294039973,3cyclictest32241-21cron11:20:012
294039973,3cyclictest24631-21cut12:35:132
294039973,3cyclictest22795-21sshd08:04:102
294039973,3cyclictest19982-21systemd-journal11:12:592
294039973,3cyclictest19982-21systemd-journal10:19:282
294039973,3cyclictest0-21swapper/210:00:072
294039973,1cyclictest0-21swapper/211:41:302
294039973,1cyclictest0-21swapper/211:09:102
294039973,1cyclictest0-21swapper/209:28:312
294039972,3cyclictest7661-21lldpd11:01:112
294039972,3cyclictest19982-21systemd-journal10:08:182
294039972,3cyclictest19982-21systemd-journal07:35:012
293989976,1cyclictest22-21ksoftirqd/112:10:011
293989976,1cyclictest22-21ksoftirqd/111:44:591
293989976,1cyclictest22-21ksoftirqd/110:45:001
293989976,1cyclictest22-21ksoftirqd/110:20:011
293989976,1cyclictest22-21ksoftirqd/110:05:001
293989976,1cyclictest22-21ksoftirqd/109:40:021
293989976,1cyclictest22-21ksoftirqd/107:55:011
293989975,2cyclictest22-21ksoftirqd/109:35:011
293989975,1cyclictest22-21ksoftirqd/107:20:011
293989974,2cyclictest8181-21idleruntime-cro10:25:011
293989974,2cyclictest508-21dbus-daemon08:25:011
293989974,2cyclictest25132-21awk08:10:001
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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