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2026-06-08 - 14:49
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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 08, 2026 00:44:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
10202297273,16sleep20-21swapper/219:08:462
10542262232,19sleep00-21swapper/019:09:130
315632258225,22sleep30-21swapper/319:05:093
9032255225,20sleep10-21swapper/119:07:171
281512870,0sleep20-21swapper/200:09:162
126852740,0sleep20-21swapper/223:00:172
271452710,0sleep30-21swapper/322:50:143
16702670,0sleep00-21swapper/021:15:400
210812660,0sleep10-21swapper/123:25:161
258622590,0sleep10-21swapper/100:27:101
319322570,0sleep00-21swapper/021:34:500
45692550,0sleep30-21swapper/300:34:283
220242550,0sleep122-21ksoftirqd/100:05:161
105582250,1sleep30-21swapper/323:19:163
326352220,0sleep10-21swapper/122:33:581
125742170,0sleep20-21swapper/200:19:372
216512140,0sleep30-21swapper/321:28:173
122382130,0sleep20-21swapper/222:20:582
117202130,0sleep30-21swapper/321:41:253
122999101,6cyclictest16696-21ssh23:42:083
122999101,6cyclictest15854-21ssh22:43:023
122999101,6cyclictest15391-21ssh23:02:003
122999101,3cyclictest26154-21grep22:10:143
122999100,3cyclictest550-21ntp_states21:15:183
122599108,1cyclictest28-21ksoftirqd/221:00:012
12299996,2cyclictest4329-21apt-get23:35:113
12299992,3cyclictest7936-21sh00:16:003
12299991,6cyclictest8228-21ssh22:38:473
12299991,6cyclictest2196-21ssh00:12:563
12299991,6cyclictest20068-21ssh21:46:303
12299991,6cyclictest14138-21ssh22:22:253
12299991,5cyclictest31512-21ssh22:33:063
12299991,3cyclictest4649-21date23:55:013
12299990,6cyclictest811-21ssh23:32:413
12179995,3cyclictest1-21systemd22:15:020
9591280,0sleep10-21swapper/122:39:501
5161280,0sleep00-21swapper/023:55:140
31498280,0sleep00-21swapper/022:33:040
12299985,2cyclictest22086-21apt-get19:55:113
12299984,3cyclictest32152-21cron21:34:593
12299984,3cyclictest12284-21apt-get20:45:113
12299983,3cyclictest12867-40gzip00:00:013
12299981,5cyclictest7623-21ssh00:35:273
12299981,5cyclictest5608-21ssh22:56:023
12299981,5cyclictest3766-21ssh22:15:453
12299981,5cyclictest31302-21ssh23:50:453
12299981,5cyclictest25238-21ssh00:26:403
12299981,5cyclictest24692-21ssh23:27:263
12299981,5cyclictest24527-21ssh22:48:243
12299981,5cyclictest23998-21ssh00:06:043
12299981,5cyclictest11231-21sh22:00:333
12299981,3cyclictest6505-21ssh21:58:163
12299981,3cyclictest5437-21ssh21:37:573
12299981,3cyclictest29782-21sh23:10:243
12299981,3cyclictest27699-21ssh21:51:003
12299981,3cyclictest24859-21ssh23:47:083
12299981,3cyclictest23193-21diskmemload00:21:573
12299981,3cyclictest14494-21seq23:20:573
12299980,6cyclictest22730-21ssh23:06:183
12299980,5cyclictest7570-21ssh21:20:023
12299980,5cyclictest27179-21ssh21:11:433
12299980,5cyclictest24886-21ssh22:29:203
12259980,7cyclictest23776-21ssh21:29:552
12219984,3cyclictest504-21dbus-daemon22:00:001
12219980,7cyclictest14141-21ssh21:43:171
31643270,0sleep10-21swapper/121:15:001
12299974,2cyclictest30734-21cron20:15:013
12299974,2cyclictest21594-21diskstats21:05:133
12299973,3cyclictest8878-21/usr/sbin/munin20:35:193
12299973,3cyclictest658-21snmpd20:24:403
12299973,3cyclictest3404-21turbostat19:15:023
12299973,3cyclictest275-21systemd-journal19:30:013
12299973,3cyclictest15540-21awk20:50:173
12299971,3cyclictest14937-21taskset19:37:273
12299971,2cyclictest19619-21sh22:05:403
12299970,4cyclictest32603-21taskset20:15:573
12299970,2cyclictest25531-21smartctl20:00:223
12259976,1cyclictest28-21ksoftirqd/221:45:012
12259975,2cyclictest28-21ksoftirqd/200:35:012
12259974,2cyclictest275-21systemd-journal20:25:002
12259974,2cyclictest21458-21grep23:45:142
12259973,3cyclictest658-21snmpd22:18:462
12259973,3cyclictest658-21snmpd21:02:592
12259973,3cyclictest504-21dbus-daemon23:20:002
12259973,3cyclictest504-21dbus-daemon20:10:012
12259973,3cyclictest15298-21cat20:50:152
12259972,3cyclictest5029-21munin-run20:30:002
12259972,3cyclictest275-21systemd-journal19:24:252
12219976,1cyclictest0-21swapper/123:19:031
12219973,3cyclictest658-21snmpd20:26:151
12219973,3cyclictest275-21systemd-journal20:57:241
12219972,3cyclictest275-21systemd-journal21:50:011
12219970,2cyclictest28571-21munin-run23:50:001
12179976,1cyclictest12-21ksoftirqd/020:00:000
12179974,2cyclictest3844-21sshd21:36:460
12179973,3cyclictest4085-21ntpq22:55:200
12179973,3cyclictest275-21systemd-journal21:25:200
12179973,3cyclictest275-21systemd-journal20:55:430
12179972,3cyclictest275-21systemd-journal22:24:400
12179970,3cyclictest275-21systemd-journal00:20:160
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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