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2026-05-11 - 10:35
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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 May 11, 2026 00:44:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
221742297270,17sleep20-21swapper/219:09:282
221852295266,19sleep10-21swapper/119:09:351
222022267210,18sleep30-21swapper/319:09:493
220152257225,21sleep00-21swapper/019:07:250
210992620,0sleep20-21swapper/222:12:232
275372600,0sleep10-21swapper/123:52:391
92322580,0sleep10-21swapper/121:45:511
275972570,0sleep30-21swapper/322:15:573
204652570,0sleep30-21swapper/321:52:493
166172550,0sleep10-21swapper/122:10:091
24152470,0sleep10-21swapper/122:59:461
69582190,0sleep00-21swapper/022:04:310
98932180,0sleep30-21swapper/323:23:023
232772170,0sleep10-21swapper/100:28:561
108562170,0sleep20-21swapper/223:42:392
81232160,0sleep30-21swapper/300:39:263
2233099150,2cyclictest18721-21ssh23:47:193
2233099142,9cyclictest29638-21ssh22:36:283
2233099142,9cyclictest29638-21ssh22:36:283
2233099130,3cyclictest13079-21ssh21:48:453
310382120,0sleep00-21swapper/000:33:310
2233099123,8cyclictest0-21swapper/322:20:143
2233099122,6cyclictest17191-21taskset21:12:033
2233099120,3cyclictest16696-21ssh22:48:413
2233099120,1cyclictest0-21swapper/323:55:203
2233099112,5cyclictest5355-21sh00:18:083
2233099112,5cyclictest13003-21sh22:07:473
2233099112,5cyclictest10444-21sh21:27:313
2233099110,2cyclictest14710-21cut21:30:143
2233099110,1cyclictest29456-21apt-get20:35:013
2233099110,1cyclictest17472-21irqstats22:10:163
2231999119,1cyclictest12-21ksoftirqd/000:00:000
2233099103,6cyclictest17847-21cat22:30:133
2233099102,7cyclictest17171-21ssh22:29:583
2233099102,6cyclictest275-21systemd-journal19:22:263
2233099100,2cyclictest275-21systemd-journal19:20:003
2233099100,2cyclictest19401-21ssh00:06:523
2233099100,1cyclictest7142-21ssh00:00:043
2233099100,1cyclictest31864-21rm23:35:233
2233099100,1cyclictest275-21systemd-journal23:17:073
2233099100,1cyclictest25629-21ssh21:55:233
2233099100,1cyclictest12714-21diskmemload22:51:233
2233099100,1cyclictest0-21swapper/323:40:273
2233099100,1cyclictest0-21swapper/323:30:013
2232699100,9cyclictest14493-21timerwakeupswit23:25:172
223309993,5cyclictest658-21snmpd00:13:513
223309993,5cyclictest32129-21rm21:20:393
223309992,6cyclictest6919-21ntp_offset20:55:163
223309992,6cyclictest4790-21cat19:40:153
223309992,6cyclictest24552-21ssh21:16:173
223309992,6cyclictest16686-21taskset00:25:023
223309992,6cyclictest11791-21grep19:55:193
223309992,6cyclictest0-21swapper/323:04:063
223309992,2cyclictest574-21tr19:30:173
223309991,2cyclictest30944-21ssh21:40:113
223309991,2cyclictest3063-21if_err_enp4s022:40:133
223309991,1cyclictest0-21swapper/323:10:463
223309990,4cyclictest24847-21/usr/sbin/munin20:25:143
223309990,2cyclictest658-21snmpd20:51:553
223309990,2cyclictest275-21systemd-journal20:50:003
223309990,2cyclictest275-21systemd-journal20:50:003
223309990,2cyclictest23831-21systemd-udevd20:20:563
223309990,2cyclictest13388-21df20:00:133
223309990,1cyclictest9201-21irqstats21:00:163
223309990,1cyclictest4526-21ssh22:02:393
223309990,1cyclictest31819-21munin-run19:30:013
223309990,1cyclictest275-21systemd-journal20:15:013
223309990,1cyclictest26976-21apt-get20:30:113
223309990,1cyclictest251202sleep321:35:583
223309990,1cyclictest18937-21ssh23:09:363
223309990,1cyclictest12714-21diskmemload22:55:433
223309990,1cyclictest0-21swapper/323:54:033
223309990,1cyclictest0-21swapper/300:20:473
223269996,2cyclictest658-21snmpd00:07:542
223199998,1cyclictest12-21ksoftirqd/023:00:010
8645280,0sleep20-21swapper/222:24:472
223309980,3cyclictest32190-21grep20:40:133
223309980,3cyclictest2627-21/usr/sbin/munin19:35:163
223309980,3cyclictest13569-21ssh23:25:123
223309980,2cyclictest7272-21tr19:45:163
223309980,2cyclictest23023-21grep19:10:133
223309980,2cyclictest20482-21head20:15:153
223309980,2cyclictest10926-21cstates21:05:153
223309980,1cyclictest26231-21ntp_states00:30:163
223309980,1cyclictest0-21swapper/320:05:013
223269984,3cyclictest275-21systemd-journal22:55:272
223269983,3cyclictest275-21systemd-journal00:22:542
223249983,3cyclictest13689-21munin-run21:30:001
223249982,3cyclictest3853-21munin-run19:40:001
8007271,5sleep18028-21sh22:43:251
223309970,2cyclictest8690-21cut19:50:113
223269974,2cyclictest658-21snmpd23:18:052
223269974,2cyclictest504-21dbus-daemon19:35:002
223269973,3cyclictest7517-21users20:55:202
223269973,2cyclictest275-21systemd-journal21:38:252
223269973,1cyclictest0-21swapper/223:04:442
223269971,4cyclictest27898-21idleruntime-cro23:15:002
223269970,6cyclictest17542-21grep00:25:142
223249976,1cyclictest22-21ksoftirqd/100:00:001
223249975,1cyclictest146412sleep122:47:061
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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