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2025-12-08 - 18:33
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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 08, 2025 12:44:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
184682328293,22sleep20-21swapper/207:09:152
184192278249,19sleep10-21swapper/107:08:371
182852274246,17sleep00-21swapper/007:06:550
183052262226,23sleep30-21swapper/307:07:103
290512640,0sleep30-21swapper/311:15:143
19532560,0sleep20-21swapper/209:31:482
84602200,0sleep10-21swapper/107:55:211
159382200,0sleep30-21swapper/309:45:113
97642190,0sleep00-21swapper/011:52:070
283152190,0sleep00-21swapper/012:08:030
67542150,0sleep30-21swapper/311:50:013
66132150,0sleep0131rcuc/010:03:220
281442150,0sleep30-21swapper/310:46:103
1863499116,3cyclictest19982-21systemd-journal12:13:431
290932100,0sleep10-21swapper/107:30:151
1863999108,1cyclictest271rcuc/210:15:192
1863999107,2cyclictest28-21ksoftirqd/212:30:002
1863999107,2cyclictest28-21ksoftirqd/209:10:012
1863999103,5cyclictest28-21ksoftirqd/207:55:222
1863999101,2cyclictest28-21ksoftirqd/209:20:142
186419996,2cyclictest13617-21df10:35:153
186419994,3cyclictest19982-21systemd-journal10:56:323
186399994,3cyclictest19982-21systemd-journal11:48:162
186399993,4cyclictest28-21ksoftirqd/211:21:162
186399993,4cyclictest28-21ksoftirqd/209:38:042
186399992,4cyclictest28-21ksoftirqd/211:35:132
186399992,4cyclictest28-21ksoftirqd/210:57:092
186309995,2cyclictest19982-21systemd-journal11:47:020
186419985,2cyclictest508-21dbus-daemon09:58:583
186419984,3cyclictest508-21dbus-daemon11:22:253
186419984,3cyclictest19982-21systemd-journal10:08:093
186419984,3cyclictest19982-21systemd-journal09:53:083
186419983,3cyclictest19982-21systemd-journal12:00:223
186419983,3cyclictest19982-21systemd-journal11:36:103
186419983,3cyclictest19982-21systemd-journal11:31:103
186419983,3cyclictest19982-21systemd-journal07:20:213
186399987,1cyclictest28-21ksoftirqd/210:45:002
186399987,1cyclictest28-21ksoftirqd/210:30:002
186399987,1cyclictest28-21ksoftirqd/209:20:002
186399987,1cyclictest28-21ksoftirqd/207:20:012
186399987,1cyclictest271rcuc/209:55:012
186399986,2cyclictest28-21ksoftirqd/210:50:012
186399985,2cyclictest28-21ksoftirqd/212:20:202
186399985,2cyclictest20965-21/usr/sbin/munin08:25:172
186399983,3cyclictest7661-21lldpd11:27:362
186399983,3cyclictest19982-21systemd-journal12:01:112
186399982,4cyclictest28-21ksoftirqd/211:00:482
186399982,4cyclictest28-21ksoftirqd/209:49:212
186399982,4cyclictest28-21ksoftirqd/209:40:202
186399982,3cyclictest28-21ksoftirqd/211:55:232
186399982,1cyclictest28-21ksoftirqd/209:27:232
186399981,5cyclictest28-21ksoftirqd/211:50:202
186399981,5cyclictest28-21ksoftirqd/211:17:152
186399981,5cyclictest28-21ksoftirqd/210:45:572
186399981,5cyclictest28-21ksoftirqd/209:10:522
186399981,4cyclictest29741-11brltty07:24:112
186399981,1cyclictest13665-21fschecks_count10:35:162
186399980,5cyclictest28-21ksoftirqd/211:33:382
186349985,2cyclictest22-21ksoftirqd/107:15:011
186349985,2cyclictest11736-21in:imuxsock11:46:121
186349984,3cyclictest508-21dbus-daemon09:51:041
186349984,3cyclictest508-21dbus-daemon08:20:551
186349984,3cyclictest19982-21systemd-journal07:52:331
186349984,3cyclictest11736-21in:imuxsock11:32:001
186349984,2cyclictest19982-21systemd-journal12:21:391
186349983,4cyclictest22-21ksoftirqd/107:20:011
186349981,4cyclictest21816-21perf09:50:011
186309984,3cyclictest19982-21systemd-journal10:28:100
186309983,3cyclictest7661-21lldpd10:11:040
1658280,0sleep20-21swapper/212:35:162
186419974,2cyclictest508-21dbus-daemon08:05:303
186419974,2cyclictest12388-21cron11:55:003
186419974,2cyclictest11736-21in:imuxsock12:29:593
186419973,3cyclictest508-21dbus-daemon09:04:183
186419973,3cyclictest508-21dbus-daemon07:14:103
186419973,3cyclictest3171-21smart_sda08:55:203
186419973,3cyclictest26755-21smart_sda09:25:203
186419973,3cyclictest20050-21sshd08:20:343
186419973,3cyclictest11117-21sshd08:00:333
186419973,3cyclictest11117-21sshd08:00:333
186419973,1cyclictest0-21swapper/311:00:463
186419972,4cyclictest31897-21sh08:50:003
186419972,3cyclictest7661-21lldpd10:17:203
186419972,3cyclictest19982-21systemd-journal09:20:103
186419972,3cyclictest19982-21systemd-journal07:17:063
186399976,1cyclictest28-21ksoftirqd/210:15:012
186399976,1cyclictest28-21ksoftirqd/207:50:022
186399976,1cyclictest271rcuc/208:35:002
186399974,0cyclictest141rcu_preempt07:30:272
186399973,3cyclictest26528-21sshd12:05:592
186399973,3cyclictest19982-21systemd-journal08:20:072
186399973,2cyclictest19982-21systemd-journal07:25:102
186399973,1cyclictest28-21ksoftirqd/209:56:432
186399972,4cyclictest271rcuc/211:10:072
186399971,4cyclictest32487-21kworker/2:212:15:042
186399971,4cyclictest28-21ksoftirqd/210:05:202
186399971,4cyclictest28-21ksoftirqd/208:50:212
186399971,4cyclictest28-21ksoftirqd/208:45:212
186399971,4cyclictest28-21ksoftirqd/208:40:162
186399971,4cyclictest28-21ksoftirqd/208:35:242
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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