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2025-09-18 - 07:17
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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 Thu Sep 18, 2025 00:44:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
209232317288,18sleep20-21swapper/219:09:312
208792278243,23sleep10-21swapper/119:08:581
207752277245,21sleep00-21swapper/019:07:350
205902269209,47sleep30-21swapper/319:05:333
148522930,0sleep20-21swapper/200:20:262
198812620,0sleep20-21swapper/222:03:282
241322610,1sleep30-21swapper/323:15:013
116442600,0sleep30-21swapper/323:05:203
195462580,0sleep10-21swapper/100:25:141
277512560,0sleep00-21swapper/000:32:390
270832560,0sleep20-21swapper/221:21:472
78352210,0sleep20-21swapper/223:25:212
195132150,0sleep20-21swapper/222:25:182
47212140,0sleep20-21swapper/222:38:122
59892130,0sleep00-21swapper/022:39:230
164262110,0sleep00-21swapper/000:22:220
114332110,1sleep10-21swapper/122:42:481
2107999102,7cyclictest28-21ksoftirqd/200:10:142
2107499103,5cyclictest22-21ksoftirqd/122:30:121
168952100,0sleep10-21swapper/122:46:161
210799995,3cyclictest508-21dbus-daemon19:43:402
210799995,3cyclictest508-21dbus-daemon19:43:402
210749998,1cyclictest22-21ksoftirqd/100:10:001
210749998,1cyclictest22-21ksoftirqd/100:00:011
210749996,2cyclictest22-21ksoftirqd/120:35:011
210749994,3cyclictest19982-21systemd-journal20:45:251
210749994,3cyclictest19982-21systemd-journal19:37:251
210749993,4cyclictest22-21ksoftirqd/122:52:321
210749993,4cyclictest22-21ksoftirqd/121:10:111
210749992,5cyclictest22-21ksoftirqd/123:27:461
210749992,5cyclictest22-21ksoftirqd/121:34:101
210749992,5cyclictest22-21ksoftirqd/100:33:111
210749992,4cyclictest22-21ksoftirqd/100:12:421
210749992,3cyclictest22-21ksoftirqd/122:03:091
210749990,6cyclictest0-21swapper/123:10:201
210709995,3cyclictest19982-21systemd-journal20:43:190
210829984,3cyclictest11736-21in:imuxsock21:30:273
210829983,3cyclictest19982-21systemd-journal22:42:383
210829983,3cyclictest19982-21systemd-journal00:26:063
210799984,3cyclictest508-21dbus-daemon19:52:512
210799984,3cyclictest508-21dbus-daemon19:19:032
210799984,3cyclictest19982-21systemd-journal22:40:582
210799983,3cyclictest19982-21systemd-journal22:07:182
210799982,4cyclictest9965-21idleruntime-cro23:05:012
210749987,1cyclictest22-21ksoftirqd/120:45:011
210749987,1cyclictest22-21ksoftirqd/120:10:001
210749986,1cyclictest18625-21ssh23:33:421
210749984,3cyclictest19982-21systemd-journal00:22:451
210749984,1cyclictest141rcu_preempt00:00:531
210749983,3cyclictest141rcu_preempt22:56:331
210749982,4cyclictest22-21ksoftirqd/123:36:301
210749982,4cyclictest22-21ksoftirqd/123:36:301
210749982,4cyclictest22-21ksoftirqd/123:17:111
210749982,4cyclictest22-21ksoftirqd/123:01:181
210749982,4cyclictest22-21ksoftirqd/122:27:511
210749982,4cyclictest22-21ksoftirqd/121:58:321
210749982,4cyclictest22-21ksoftirqd/121:54:451
210749982,4cyclictest22-21ksoftirqd/121:45:061
210749982,4cyclictest22-21ksoftirqd/121:40:111
210749982,4cyclictest22-21ksoftirqd/121:40:101
210749982,4cyclictest22-21ksoftirqd/121:25:101
210749982,4cyclictest22-21ksoftirqd/121:17:481
210749982,4cyclictest0-21swapper/119:55:151
210749981,4cyclictest22-21ksoftirqd/123:45:571
210749981,4cyclictest22-21ksoftirqd/123:41:231
210749981,4cyclictest22-21ksoftirqd/122:20:391
210749981,2cyclictest29741-11brltty22:07:101
210749981,2cyclictest22-21ksoftirqd/122:10:011
210749980,5cyclictest22-21ksoftirqd/123:08:291
210709984,3cyclictest508-21dbus-daemon20:10:220
210709984,3cyclictest11736-21in:imuxsock21:46:190
210709981,4cyclictest19982-21systemd-journal23:20:370
210709981,2cyclictest11736-21in:imuxsock22:03:000
210829976,1cyclictest34-21ksoftirqd/322:40:003
210829975,1cyclictest20698-21ssh21:17:213
210829974,2cyclictest11736-21in:imuxsock22:15:573
210829973,3cyclictest7661-21lldpd21:41:323
210829973,3cyclictest7661-21lldpd21:41:323
210829973,3cyclictest0-21swapper/323:44:133
210829973,3cyclictest0-21swapper/323:29:093
210829973,2cyclictest19982-21systemd-journal21:45:023
210829973,1cyclictest0-21swapper/323:23:213
210829973,1cyclictest0-21swapper/321:13:093
210829973,1cyclictest0-21swapper/300:32:573
210829972,4cyclictest34-21ksoftirqd/319:24:283
210829972,3cyclictest19982-21systemd-journal23:04:213
210829972,3cyclictest19982-21systemd-journal22:25:263
210829972,3cyclictest19982-21systemd-journal20:21:583
210829972,3cyclictest19982-21systemd-journal19:40:013
210829972,3cyclictest19982-21systemd-journal00:08:353
210829972,1cyclictest12528-21apt-get21:35:143
210829972,1cyclictest0-21swapper/300:12:213
210829971,4cyclictest13838-21sshd20:01:563
210799974,2cyclictest508-21dbus-daemon22:15:062
210799974,2cyclictest11736-21in:imuxsock19:33:392
210799973,3cyclictest5529-21sshd23:46:502
210799973,3cyclictest30654-21snmpd21:38:492
210799973,3cyclictest30654-21snmpd20:28:122
210799973,3cyclictest30276-21ntpq22:10:182
210799973,3cyclictest2787-21systemctl23:00:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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