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2025-12-03 - 13:55
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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 Dec 03, 2025 00:44:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
85712278245,21sleep00-21swapper/019:06:390
85132275208,22sleep10-21swapper/119:05:551
87162270233,24sleep30-21swapper/319:08:153
85532263226,22sleep20-21swapper/219:06:242
34862620,0sleep30-21swapper/300:28:493
120932620,1sleep3341ksoftirqd/323:48:073
35742610,0sleep10-21swapper/100:28:551
270182600,0sleep10-21swapper/121:49:461
163412590,0sleep00-21swapper/022:25:120
70792580,0sleep10-21swapper/122:19:051
193312580,0sleep10-21swapper/123:52:591
183902580,0sleep00-21swapper/023:09:530
169752580,0sleep20-21swapper/221:21:192
156322550,0sleep10-21swapper/100:37:311
36752180,0sleep30-21swapper/300:05:143
216852180,0sleep20-21swapper/222:06:532
68972150,0sleep10-21swapper/100:30:271
8963991411,2cyclictest28-21ksoftirqd/223:30:012
297202140,0sleep20-21swapper/222:55:182
159772140,0sleep10-21swapper/122:25:001
238122130,0sleep10-21swapper/122:51:001
254862120,0sleep00-21swapper/000:20:210
285282110,0sleep10-21swapper/122:33:061
89689994,3cyclictest19982-21systemd-journal00:38:553
89689994,3cyclictest19982-21systemd-journal00:02:523
89609995,3cyclictest508-21dbus-daemon22:00:231
10986290,0sleep10-21swapper/122:42:431
89689986,1cyclictest0-21swapper/322:17:303
89689984,3cyclictest19982-21systemd-journal20:48:123
89689983,3cyclictest19982-21systemd-journal23:44:203
89689983,3cyclictest19982-21systemd-journal23:20:293
89689983,3cyclictest19982-21systemd-journal22:39:113
89689983,3cyclictest19982-21systemd-journal00:32:313
89689980,4cyclictest19982-21systemd-journal19:55:013
89639986,1cyclictest28-21ksoftirqd/222:35:002
89639984,3cyclictest19982-21systemd-journal21:47:012
89639984,3cyclictest11736-21in:imuxsock00:01:222
89639983,1cyclictest0-21swapper/200:17:132
89639982,3cyclictest9915-21munin-run00:10:012
89639981,4cyclictest10658-21awk20:25:012
89639981,3cyclictest21813-21idleruntime-cro20:50:002
89609984,3cyclictest19982-21systemd-journal23:49:411
89609984,3cyclictest19982-21systemd-journal22:47:231
89609984,3cyclictest19982-21systemd-journal19:26:511
89559984,3cyclictest508-21dbus-daemon22:42:570
89559984,3cyclictest508-21dbus-daemon20:55:000
89559984,3cyclictest19982-21systemd-journal00:18:030
25662280,1sleep125659-21timerwakeupswit20:55:191
12015280,0sleep30-21swapper/321:18:353
89689974,2cyclictest668-21runrttasks20:20:143
89689973,3cyclictest508-21dbus-daemon20:53:363
89689973,3cyclictest19982-21systemd-journal23:51:123
89689973,3cyclictest19982-21systemd-journal22:52:013
89689973,3cyclictest19982-21systemd-journal22:40:253
89689973,3cyclictest19982-21systemd-journal20:00:013
89689973,3cyclictest19982-21systemd-journal00:16:483
89689973,2cyclictest19982-21systemd-journal20:34:563
89689973,1cyclictest0-21swapper/300:21:333
89689972,3cyclictest19982-21systemd-journal23:34:153
89689971,4cyclictest19982-21systemd-journal23:00:283
89689970,7cyclictest0-21swapper/321:42:013
89689970,3cyclictest27808-21ntp_states21:00:183
89639975,1cyclictest0-21swapper/221:33:202
89639974,2cyclictest28-21ksoftirqd/223:50:012
89639973,3cyclictest508-21dbus-daemon20:36:062
89639973,3cyclictest4485-21cat23:00:172
89639973,3cyclictest30654-21snmpd19:40:392
89639973,3cyclictest28268-21sshd23:59:202
89639973,3cyclictest2188-21awk23:20:132
89639973,3cyclictest19116-21gdbus23:20:002
89639973,3cyclictest11736-21in:imuxsock21:12:492
89639973,2cyclictest508-21dbus-daemon20:41:302
89639973,1cyclictest0-21swapper/222:28:292
89639973,1cyclictest0-21swapper/221:50:592
89639973,1cyclictest0-21swapper/221:37:542
89639973,1cyclictest0-21swapper/200:35:462
89639973,1cyclictest0-21swapper/200:13:252
89639972,3cyclictest19982-21systemd-journal23:39:552
89639970,4cyclictest11352-21awk00:35:002
89639970,1cyclictest2703-21ssh22:37:132
89609975,1cyclictest318172sleep122:56:371
89609974,2cyclictest508-21dbus-daemon20:07:191
89609973,3cyclictest30654-21snmpd23:31:581
89609973,3cyclictest30654-21snmpd23:10:541
89609973,3cyclictest19982-21systemd-journal22:37:311
89609973,3cyclictest19982-21systemd-journal00:05:011
89609973,3cyclictest1-21systemd20:05:011
89609973,3cyclictest0-21swapper/123:03:591
89609973,1cyclictest0-21swapper/121:44:261
89609973,1cyclictest0-21swapper/121:27:461
89609972,3cyclictest19982-21systemd-journal21:07:481
89609972,3cyclictest19982-21systemd-journal20:23:351
89609971,3cyclictest2264-21ssh21:11:361
89559973,3cyclictest508-21dbus-daemon23:23:240
89559973,3cyclictest508-21dbus-daemon22:12:030
89559973,3cyclictest508-21dbus-daemon19:15:010
89559973,3cyclictest30834-21ntpq19:55:170
89559973,3cyclictest30654-21snmpd20:32:550
89559973,3cyclictest19982-21systemd-journal22:21:150
89559973,3cyclictest19982-21systemd-journal21:58:200
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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