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2025-11-18 - 02:23
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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 Nov 17, 2025 12:44:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
38032305273,20sleep10-21swapper/107:09:181
35112276210,20sleep00-21swapper/007:05:310
37072267234,20sleep30-21swapper/307:08:033
36912259224,22sleep20-21swapper/207:07:502
118332660,1sleep00-21swapper/011:30:560
48672610,0sleep20-21swapper/212:12:062
44222600,0sleep30-21swapper/310:09:143
185452580,0sleep20-21swapper/211:11:162
185452580,0sleep20-21swapper/211:11:162
290752550,0sleep30-21swapper/309:36:223
135112450,0sleep20-21swapper/211:07:552
68922200,1sleep06887-21ssh10:35:220
46932190,1sleep24694-21grep11:50:162
70292180,0sleep30-21swapper/312:33:293
135632180,0sleep00-21swapper/009:25:130
283782170,0sleep10-21swapper/110:01:311
308672150,1sleep30-21swapper/312:08:273
288662150,0sleep20-21swapper/212:06:412
163592150,0sleep00-21swapper/012:19:410
48072140,0sleep30-21swapper/309:18:003
60742130,0sleep20-21swapper/210:10:172
249062130,0sleep20-21swapper/209:59:322
397999105,3cyclictest19982-21systemd-journal09:07:233
39799992,4cyclictest19982-21systemd-journal07:45:213
39779994,3cyclictest19982-21systemd-journal12:36:372
39779993,3cyclictest16806-21readlink12:20:002
39689994,3cyclictest19982-21systemd-journal12:36:250
39689994,3cyclictest19982-21systemd-journal12:33:550
39689992,4cyclictest11545-21cron10:15:010
16930290,0sleep20-21swapper/210:45:172
39799985,2cyclictest11736-21in:imuxsock08:24:503
39799983,3cyclictest19982-21systemd-journal08:13:103
39799982,1cyclictest141rcu_preempt08:51:073
39799980,1cyclictest141rcu_preempt11:05:023
39779984,3cyclictest508-21dbus-daemon10:59:382
39779983,3cyclictest19982-21systemd-journal07:32:412
39779983,3cyclictest19982-21systemd-journal07:15:022
39729985,2cyclictest28129-21ssh09:35:271
39729984,3cyclictest19982-21systemd-journal08:23:351
39729983,3cyclictest19982-21systemd-journal12:25:341
39729983,3cyclictest19982-21systemd-journal11:40:311
39729983,3cyclictest19982-21systemd-journal10:25:011
39729980,2cyclictest7661-21lldpd11:10:121
39729980,2cyclictest7661-21lldpd11:10:121
39689985,2cyclictest502-21systemd-logind11:50:310
39689983,3cyclictest19982-21systemd-journal10:19:350
23321280,0sleep20-21swapper/209:32:082
39799974,2cyclictest508-21dbus-daemon09:52:533
39799973,3cyclictest508-21dbus-daemon12:36:253
39799973,3cyclictest508-21dbus-daemon11:10:043
39799973,3cyclictest508-21dbus-daemon11:10:043
39799973,3cyclictest3429-21sshd08:15:403
39799973,3cyclictest30654-21snmpd09:46:543
39799973,3cyclictest20098-21sshd07:42:383
39799973,3cyclictest0-21swapper/310:33:593
39799973,2cyclictest19982-21systemd-journal11:42:113
39799973,1cyclictest0-21swapper/312:19:453
39799972,3cyclictest19982-21systemd-journal09:29:303
39779974,2cyclictest3237-21cut11:00:172
39779974,2cyclictest19982-21systemd-journal08:25:152
39779974,2cyclictest17978-21cron12:00:002
39779974,2cyclictest11736-21in:imuxsock09:11:092
39779973,3cyclictest508-21dbus-daemon09:49:582
39779973,3cyclictest30654-21snmpd07:28:432
39779973,3cyclictest19982-21systemd-journal11:23:252
39779973,3cyclictest19982-21systemd-journal08:00:232
39779973,3cyclictest11736-21in:imuxsock10:30:262
39779973,3cyclictest0-21swapper/211:25:052
39779973,1cyclictest0-21swapper/212:03:172
39779972,3cyclictest502-21systemd-logind11:17:592
39779971,5cyclictest0-21swapper/212:30:182
39779970,4cyclictest20299-21idleruntime-cro07:45:002
39729975,1cyclictest0-21swapper/112:23:001
39729974,2cyclictest508-21dbus-daemon08:19:001
39729974,2cyclictest11736-21in:imuxsock07:20:111
39729973,3cyclictest508-21dbus-daemon07:19:461
39729973,3cyclictest30654-21snmpd11:47:511
39729973,3cyclictest30654-21snmpd09:29:281
39729973,3cyclictest30654-21snmpd08:02:141
39729973,3cyclictest19982-21systemd-journal11:36:201
39729973,3cyclictest19982-21systemd-journal11:06:191
39729973,3cyclictest19982-21systemd-journal09:50:571
39729973,3cyclictest0-21swapper/111:56:271
39729973,3cyclictest0-21swapper/110:13:371
39729973,1cyclictest0-21swapper/110:48:351
39729972,3cyclictest19982-21systemd-journal12:20:001
39729972,3cyclictest19982-21systemd-journal10:41:161
39689974,2cyclictest508-21dbus-daemon11:40:310
39689974,2cyclictest508-21dbus-daemon08:40:000
39689974,2cyclictest19982-21systemd-journal09:47:520
39689974,2cyclictest11736-21in:imuxsock08:32:210
39689974,2cyclictest11736-21in:imuxsock08:15:000
39689973,3cyclictest30654-21snmpd07:50:040
39689973,3cyclictest1159-21grep09:15:150
39689973,3cyclictest0-21swapper/012:14:230
39689973,3cyclictest0-21swapper/011:10:130
39689973,3cyclictest0-21swapper/011:10:130
39689973,3cyclictest0-21swapper/009:55:360
39689973,1cyclictest0-21swapper/011:02:070
39689972,3cyclictest19982-21systemd-journal11:08:480
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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