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2026-06-22 - 03:11
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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 Jun 22, 2026 00:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
285452325295,20sleep20-21swapper/219:07:102
285132280248,22sleep10-21swapper/119:06:451
286642270240,19sleep00-21swapper/019:08:410
286042262236,17sleep30-21swapper/319:07:563
86902630,0sleep20-21swapper/222:01:442
185442590,0sleep00-21swapper/021:10:010
225602580,0sleep20-21swapper/221:31:052
54452560,0sleep00-21swapper/023:37:120
92632550,0sleep10-21swapper/122:40:591
44312550,0sleep20-21swapper/222:58:022
113092520,0sleep00-21swapper/021:44:320
9862200,0sleep00-21swapper/023:54:310
131382190,0sleep10-21swapper/121:45:141
228232170,0sleep20-21swapper/221:50:232
169472150,0sleep00-21swapper/022:26:090
41762140,0sleep20-21swapper/221:59:362
125312140,0sleep30-21swapper/322:24:083
10892140,0sleep20-21swapper/223:35:062
310212130,0sleep20-21swapper/223:33:222
244822130,0sleep00-21swapper/000:27:490
29852100,0sleep10-21swapper/100:34:511
27752100,0sleep20-21swapper/200:15:072
288849997,1cyclictest12-21ksoftirqd/021:55:010
12056290,0sleep00-21swapper/023:40:530
30567280,1sleep30-21swapper/321:35:513
289009983,3cyclictest275-21systemd-journal21:10:003
10639280,0sleep110644-21cpuspeed_turbos00:00:121
31447270,0sleep20-21swapper/223:53:002
289009973,3cyclictest7585-11brltty23:49:163
289009973,3cyclictest658-21snmpd23:10:323
289009973,3cyclictest275-21systemd-journal23:22:093
289009973,3cyclictest275-21systemd-journal22:14:563
289009973,3cyclictest275-21systemd-journal22:14:563
289009973,3cyclictest275-21systemd-journal00:02:593
289009973,3cyclictest15750-21taskset23:05:093
288929973,3cyclictest10203-21cupsd00:01:182
288929970,7cyclictest29693-21ssh22:53:562
288889974,2cyclictest275-21systemd-journal00:16:211
288889973,3cyclictest658-21snmpd21:57:371
288889973,3cyclictest504-21dbus-daemon23:50:001
288889973,3cyclictest19737-11brltty22:15:451
288849973,1cyclictest0-21swapper/021:28:420
288849972,4cyclictest26297-21dump-pmu-power20:15:020
288849971,4cyclictest16166-21dump-pmu-power21:05:010
288849970,6cyclictest22351-21ssh22:30:080
289009966,0cyclictest0-21swapper/300:34:443
289009963,2cyclictest7387-21date19:30:153
289009963,2cyclictest658-21snmpd20:23:073
289009963,2cyclictest6000-21tr20:40:153
289009963,2cyclictest31402-21ssh21:55:373
289009963,2cyclictest28616-21ssh22:33:433
289009963,2cyclictest275-21systemd-journal22:56:393
289009963,2cyclictest275-21systemd-journal20:51:253
289009963,2cyclictest26955-21cat23:50:143
289009963,2cyclictest24085-21/usr/sbin/munin20:10:013
289009963,2cyclictest21286-21ssh21:10:523
289009963,2cyclictest17508-21sh22:07:093
289009963,2cyclictest16124-21ssh22:25:303
289009963,2cyclictest12532-21uptime19:40:213
289009963,1cyclictest0-21swapper/321:51:123
289009962,3cyclictest658-21snmpd23:57:553
289009962,3cyclictest658-21snmpd21:46:433
289009962,3cyclictest658-21snmpd20:58:133
289009962,3cyclictest658-21snmpd20:27:223
289009962,3cyclictest658-21snmpd20:13:303
289009962,3cyclictest658-21snmpd19:58:333
289009962,3cyclictest658-21snmpd19:35:523
289009962,3cyclictest658-21snmpd00:36:193
289009962,3cyclictest501-21in:imuxsock20:46:403
289009962,3cyclictest4611-21cat21:20:213
289009962,3cyclictest3328-21uptime19:20:213
289009962,3cyclictest31027-21ls22:35:143
289009962,3cyclictest275-21systemd-journal21:41:483
289009962,3cyclictest22965-21cut22:50:003
289009962,3cyclictest17773-21cat23:25:153
289009962,3cyclictest17143-21kworker/3:100:25:123
289009962,3cyclictest11187-21cat00:20:113
289009962,1cyclictest0-21swapper/323:41:253
289009962,1cyclictest0-21swapper/323:30:563
289009962,1cyclictest0-21swapper/322:41:193
289009962,1cyclictest0-21swapper/321:32:053
289009961,4cyclictest0-21swapper/323:35:123
289009961,3cyclictest275-21systemd-journal22:01:513
289009961,2cyclictest13193-21find19:45:133
289009961,1cyclictest0-21swapper/323:00:143
289009960,6cyclictest0-21swapper/319:25:063
289009960,6cyclictest0-21swapper/300:07:543
289009960,5cyclictest27315-21cpuspeed_turbos21:15:133
289009960,5cyclictest11411-21cpuspeed_turbos21:25:123
289009960,0cyclictest0-21swapper/322:52:143
289009960,0cyclictest0-21swapper/300:11:013
288929966,0cyclictest0-21swapper/222:23:152
288929963,2cyclictest9971-21ssh23:00:542
288929963,2cyclictest7166-21ssh23:57:522
288929963,2cyclictest658-21snmpd22:10:582
288929963,2cyclictest658-21snmpd22:10:582
288929963,2cyclictest658-21snmpd19:40:032
288929963,2cyclictest560-21gdbus21:25:002
288929963,2cyclictest504-21dbus-daemon20:28:002
288929963,2cyclictest504-21dbus-daemon00:30:572
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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