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2026-06-26 - 10:32
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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 Fri Jun 26, 2026 00:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
129392313288,16sleep20-21swapper/219:05:422
130282295270,17sleep10-21swapper/119:06:501
132442277247,20sleep30-21swapper/319:09:213
129642263232,20sleep00-21swapper/019:06:010
178762930,0sleep10-21swapper/122:55:211
284592700,0sleep30-21swapper/322:42:423
56852600,0sleep30-21swapper/322:29:213
42192590,0sleep30-21swapper/321:10:173
208972560,0sleep10-21swapper/100:35:161
278522450,0sleep30-21swapper/300:00:223
54232200,0sleep00-21swapper/021:30:160
47062200,1sleep14705-21ssh00:25:191
232682180,0sleep20-21swapper/219:30:012
244102170,0sleep10-21swapper/123:39:101
74282150,0sleep30-21swapper/300:07:433
116322150,0sleep20-21swapper/221:53:572
270702140,1sleep127072-21cut20:50:131
181752110,0sleep00-21swapper/022:36:110
136532110,0sleep20-21swapper/221:55:132
319762100,0sleep10-21swapper/121:46:021
1341599109,1cyclictest12-21ksoftirqd/000:00:000
8046290,0sleep20-21swapper/221:31:452
7693290,0sleep10-21swapper/121:50:551
134309990,8cyclictest18637-21ssh21:38:313
134249996,2cyclictest28-21ksoftirqd/220:30:002
134249982,3cyclictest13034-21basename20:20:002
134159987,1cyclictest12-21ksoftirqd/000:05:000
134159985,2cyclictest504-21dbus-daemon20:00:000
134159984,1cyclictest1349-21turbostat23:45:010
134159983,3cyclictest275-21systemd-journal22:05:000
31354270,0sleep20-21swapper/221:26:082
134309976,1cyclictest14347-1kworker/u9:122:46:433
134309974,2cyclictest29755-21diskstats21:45:143
134309974,2cyclictest275-21systemd-journal00:00:003
134309973,3cyclictest9509-21cat20:10:153
134309973,3cyclictest21307-21sensors_temp00:35:203
134309973,1cyclictest0-21swapper/321:31:073
134309971,3cyclictest50850irq/136-enp4s0-23:30:373
134249973,3cyclictest658-21snmpd20:31:102
134249973,3cyclictest275-21systemd-journal22:10:132
134249973,2cyclictest275-21systemd-journal23:39:122
134249973,2cyclictest275-21systemd-journal22:00:092
134249973,1cyclictest0-21swapper/200:12:212
134249972,2cyclictest26397-21perf20:50:002
134219973,3cyclictest275-21systemd-journal20:32:121
134219971,2cyclictest275-21systemd-journal21:25:001
134159973,3cyclictest504-21dbus-daemon19:20:010
134159973,3cyclictest30844-21grep21:00:000
134159973,3cyclictest275-21systemd-journal21:57:460
134159972,3cyclictest275-21systemd-journal23:27:260
134159971,5cyclictest11109-21ntpq23:50:150
134159971,3cyclictest8588-21munin-run20:10:000
134159971,3cyclictest4732-21idleruntime-cro21:50:000
11973270,0sleep30-21swapper/322:52:113
134309966,0cyclictest0-21swapper/322:59:363
134309966,0cyclictest0-21swapper/321:55:003
134309964,1cyclictest2899-21diskmemload23:20:033
134309963,2cyclictest8351-21sh22:10:473
134309963,2cyclictest8215-21rm22:30:183
134309963,2cyclictest658-21snmpd20:21:103
134309963,2cyclictest31268-21cut21:00:133
134309963,2cyclictest2991-21sh23:25:233
134309963,2cyclictest28447-21ssh21:25:063
134309963,2cyclictest275-21systemd-journal21:40:563
134309963,2cyclictest24959-21gltestperf23:00:143
134309963,2cyclictest20607-21ssh21:59:243
134309963,2cyclictest18103-21ssh22:36:073
134309963,2cyclictest14847-21ssh21:16:123
134309963,2cyclictest11264-21cstates20:15:143
134309963,2cyclictest10968-21sh00:29:503
134309963,1cyclictest0-21swapper/323:06:003
134309962,3cyclictest6748-21expr20:05:133
134309962,3cyclictest658-21snmpd23:45:183
134309962,3cyclictest658-21snmpd22:23:283
134309962,3cyclictest658-21snmpd22:05:083
134309962,3cyclictest658-21snmpd21:05:513
134309962,3cyclictest658-21snmpd19:41:113
134309962,3cyclictest658-21snmpd19:11:113
134309962,3cyclictest658-21snmpd00:11:593
134309962,3cyclictest32467-21wc19:50:123
134309962,3cyclictest22876-21cat20:40:123
134309962,3cyclictest21682-21cat21:20:193
134309962,3cyclictest16011-21expr22:15:223
134309962,2cyclictest275-21systemd-journal20:00:143
134309962,1cyclictest0-21swapper/323:12:023
134309962,1cyclictest0-21swapper/300:19:243
134309961,1cyclictest3125-21ntpq19:55:163
134309960,6cyclictest0-21swapper/323:18:513
134309960,6cyclictest0-21swapper/300:34:023
134309960,5cyclictest26495-21sort23:40:133
134309960,5cyclictest19384-21df19:20:133
134309960,4cyclictest18492-21sshd19:17:203
134309960,0cyclictest0-21swapper/323:51:193
134309960,0cyclictest0-21swapper/300:21:023
134249966,0cyclictest0-21swapper/222:15:192
134249963,2cyclictest658-21snmpd21:13:322
134249963,2cyclictest5413-21sh00:25:322
134249963,2cyclictest504-21dbus-daemon23:50:212
134249963,2cyclictest504-21dbus-daemon23:25:452
134249963,2cyclictest504-21dbus-daemon19:15:192
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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