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2026-04-07 - 06:03
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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 Tue Apr 07, 2026 00:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
267172282253,19sleep20-21swapper/219:08:042
265922274247,18sleep10-21swapper/119:06:421
268402266236,19sleep00-21swapper/019:09:390
268332260229,20sleep30-21swapper/319:09:343
275842930,0sleep30-21swapper/321:54:583
87422620,0sleep10-21swapper/121:43:061
193542600,0sleep00-21swapper/021:49:590
92142570,0sleep20-21swapper/221:24:172
237252570,0sleep30-21swapper/300:09:203
86352560,1sleep28620-21perf00:20:002
150452550,0sleep00-21swapper/022:06:080
259982540,0sleep00-21swapper/023:50:190
321392530,1sleep00-21swapper/000:14:300
177412530,0sleep00-21swapper/022:27:390
295752510,0sleep10-21swapper/100:32:081
208452190,0sleep20-21swapper/223:08:452
306982160,0sleep30-21swapper/321:17:133
229102160,0sleep20-21swapper/200:28:212
298112150,0sleep20-21swapper/221:35:462
167992150,0sleep10-21swapper/100:05:101
2702199142,7cyclictest11628-21rm23:02:593
218162140,0sleep00-21swapper/021:50:350
2702199132,7cyclictest0-21swapper/323:58:333
2702199121,8cyclictest0-21swapper/323:08:533
2702199112,5cyclictest23486-21sh00:28:483
2702199111,2cyclictest24508-21sed20:10:193
2702199111,1cyclictest24436-21apt-get23:50:113
2702199110,3cyclictest30344-21ssh23:14:433
2702199110,3cyclictest21358-21ssh21:11:393
2702199110,2cyclictest1573-21ssh23:15:553
2702199110,2cyclictest1573-21ssh23:15:553
2702199110,0cyclictest0-21swapper/300:22:313
2702199103,6cyclictest24857-21ssh22:51:153
2702199102,7cyclictest3300-21rm22:38:433
2702199102,4cyclictest4347-21sh21:20:303
2702199101,1cyclictest27297-21ssh21:35:023
2702199100,9cyclictest21943-21hddtemp_smartct22:30:153
2702199100,3cyclictest275-21systemd-journal21:10:013
2702199100,3cyclictest275-21systemd-journal20:18:173
2702199100,3cyclictest14933-21ssh22:06:033
2702199100,2cyclictest30557-21ssh00:13:153
2702199100,2cyclictest275-21systemd-journal20:10:003
2702199100,2cyclictest19004-21ssh23:46:093
2702199100,1cyclictest7627-21ssh22:01:483
2702199100,1cyclictest28454-21ssh00:31:153
2702199100,1cyclictest25235-21smart_sda23:30:193
2702199100,1cyclictest21141-21perl22:10:163
2702199100,1cyclictest0-21swapper/322:45:123
2702199100,1cyclictest0-21swapper/321:25:153
2702199100,1cyclictest0-21swapper/320:50:153
2702199100,1cyclictest0-21swapper/319:45:193
2702199100,1cyclictest0-21swapper/300:35:003
270219992,6cyclictest658-21snmpd20:44:303
270219992,6cyclictest5163-21ssh21:40:213
270219992,6cyclictest30341-21ssh22:55:023
270219992,6cyclictest29615-21sed21:55:213
270219992,6cyclictest12742-21date22:25:013
270219991,1cyclictest8002-21apt-get23:40:103
270219990,3cyclictest275-21systemd-journal19:39:463
270219990,3cyclictest275-21systemd-journal19:31:563
270219990,3cyclictest275-21systemd-journal19:26:553
270219990,3cyclictest16562-21cat19:55:153
270219990,2cyclictest275-21systemd-journal20:30:133
270219990,2cyclictest15216-21idleruntime-cro21:05:013
270219990,1cyclictest7682-21cstates23:20:113
270219990,1cyclictest4548-21ssh23:37:433
270219990,1cyclictest29771-21apt-get20:25:113
270219990,1cyclictest21577-21ssh21:31:043
270219990,1cyclictest18354-1kworker/u9:100:00:433
270219990,1cyclictest17589-21ssh23:25:313
270219990,1cyclictest12800-21sh22:25:033
270219990,1cyclictest11494-21ssh21:45:043
270219990,1cyclictest11099-21cron19:45:003
270219990,1cyclictest10026-21ssh22:42:313
270219990,1cyclictest0-21swapper/320:20:133
270219990,0cyclictest17436-21diskmemload00:16:353
270219990,0cyclictest0-21swapper/320:55:113
270099993,3cyclictest11849-21grep22:05:010
6857280,0sleep20-21swapper/222:20:402
6440280,0sleep20-21swapper/222:00:542
270219980,3cyclictest354-21expr19:20:133
270219980,2cyclictest29810-21cpu19:15:023
270219980,2cyclictest275-21systemd-journal20:47:023
270219980,2cyclictest17750-21cron20:00:013
270219980,2cyclictest14337-21cat19:50:163
270219980,1cyclictest30363-21timerandwakeup22:15:193
270219980,1cyclictest27457-21apt-get19:10:023
270179986,1cyclictest28-21ksoftirqd/220:50:012
270119980,7cyclictest2436-21ssh21:59:131
3290270,0sleep00-21swapper/023:56:190
270219970,1cyclictest0-21swapper/320:35:113
270179975,1cyclictest23539-21rm22:30:462
270179973,3cyclictest504-21dbus-daemon22:00:012
270179973,3cyclictest28638-21systemctl19:10:172
270179973,3cyclictest275-21systemd-journal22:47:182
270179972,4cyclictest275-21systemd-journal23:37:212
270179972,3cyclictest275-21systemd-journal20:57:042
270119974,2cyclictest8128-21sshd22:02:111
270119974,2cyclictest22-21ksoftirqd/119:50:001
270119972,3cyclictest275-21systemd-journal20:03:571
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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