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2026-03-30 - 07:46
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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 Mar 30, 2026 00:44:21)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
16442295269,17sleep20-21swapper/219:07:182
16482286260,18sleep10-21swapper/119:07:211
17762270222,38sleep30-21swapper/319:08:593
17202261234,17sleep00-21swapper/019:08:170
28812610,0sleep30-21swapper/323:31:543
258912610,0sleep00-21swapper/000:05:150
115352600,0sleep30-21swapper/323:18:053
69962580,0sleep20-21swapper/222:16:452
65482570,0sleep00-21swapper/023:53:490
259612540,0sleep30-21swapper/323:26:093
181402170,0sleep00-21swapper/022:23:570
268312160,1sleep126832-21unixbench-2d21:30:191
110352150,0sleep00-21swapper/019:25:220
196799142,1cyclictest11724-21apt-get22:20:121
41712130,0sleep20-21swapper/223:32:542
221962130,0sleep30-21swapper/321:47:083
197199138,2cyclictest28-21ksoftirqd/200:25:012
1971991311,1cyclictest28-21ksoftirqd/200:00:012
1971991310,2cyclictest28-21ksoftirqd/200:20:002
93622120,0sleep30-21swapper/322:37:563
280412120,0sleep30-21swapper/322:10:143
197199129,2cyclictest28-21ksoftirqd/200:15:002
196799123,1cyclictest0-21swapper/123:10:101
196799121,3cyclictest31782-21apt20:15:001
196799120,2cyclictest275-21systemd-journal19:20:011
196799120,2cyclictest25112-21ssh22:27:561
196799120,2cyclictest11742-21rm22:39:481
196799120,1cyclictest28984-21ssh22:50:011
197199119,1cyclictest28-21ksoftirqd/222:45:012
197199119,1cyclictest28-21ksoftirqd/220:00:012
197199115,4cyclictest28-21ksoftirqd/220:05:112
1971991110,1cyclictest28-21ksoftirqd/222:55:012
196799112,1cyclictest1588-21cron20:20:011
196799110,3cyclictest6043-21irqstats22:55:131
196799110,2cyclictest275-21systemd-journal20:30:011
197199109,1cyclictest28-21ksoftirqd/223:40:002
197199109,1cyclictest28-21ksoftirqd/221:40:002
197199109,1cyclictest28-21ksoftirqd/219:55:012
197199107,2cyclictest28-21ksoftirqd/223:55:002
196799103,1cyclictest6681-21grep23:15:141
196799102,3cyclictest658-21snmpd23:51:521
196799102,2cyclictest9838-21cat00:15:141
196799102,2cyclictest4012-21gltestperf22:15:161
196799102,1cyclictest0-21swapper/121:43:571
196799101,3cyclictest32298-21ls23:30:151
196799101,3cyclictest20342-21/usr/sbin/munin21:00:161
196799101,2cyclictest30916-21sshd22:11:391
196799101,2cyclictest275-21systemd-journal22:31:451
196799100,3cyclictest8646-21ssh21:20:111
196799100,3cyclictest4291-21munin-node19:15:011
196799100,3cyclictest29751-21rm21:13:081
196799100,3cyclictest2685-21cat21:55:121
196799100,3cyclictest20545-21smart_sda22:05:181
196799100,3cyclictest16516-21wc00:00:001
196799100,2cyclictest275-21systemd-journal20:51:201
196799100,2cyclictest275-21systemd-journal20:05:011
196799100,2cyclictest275-21systemd-journal19:25:001
196799100,1cyclictest14465-21grep22:40:211
19719998,1cyclictest28-21ksoftirqd/222:00:012
19719998,1cyclictest28-21ksoftirqd/221:55:012
19719998,1cyclictest28-21ksoftirqd/220:20:012
19719998,1cyclictest28-21ksoftirqd/219:35:002
19719998,1cyclictest28-21ksoftirqd/219:15:012
19719998,1cyclictest28-21ksoftirqd/200:35:012
19719992,2cyclictest28-21ksoftirqd/220:45:012
19679993,1cyclictest658-21snmpd00:26:191
19679992,1cyclictest4834-21sh21:17:271
19679991,3cyclictest658-21snmpd23:45:361
19679991,2cyclictest7377-21/usr/sbin/munin20:30:191
19679991,2cyclictest10625-21/usr/sbin/munin19:25:191
19679990,3cyclictest8136-21rm00:14:261
19679990,3cyclictest6543-21ssh21:38:071
19679990,3cyclictest29587-21ls22:50:111
19679990,3cyclictest29186-21ssh23:28:391
19679990,3cyclictest28719-21gunzip20:05:171
19679990,3cyclictest275-21systemd-journal21:06:151
19679990,3cyclictest275-21systemd-journal20:23:141
19679990,3cyclictest25805-21tail00:05:151
19679990,3cyclictest25213-21ssh23:06:291
19679990,3cyclictest23525-21sh19:55:121
19679990,3cyclictest19631-21/usr/sbin/munin19:45:171
19679990,3cyclictest19373-21threads00:20:181
19679990,3cyclictest19197-21ntp_states21:45:181
19679990,3cyclictest1898-21ssh00:30:031
19679990,3cyclictest17416-21ntpq19:40:191
19679990,3cyclictest17031-21expr00:00:101
19679990,3cyclictest16975-21rm21:25:141
19679990,3cyclictest15204-21cstates23:20:131
19679990,3cyclictest14617-21ntpq23:00:141
19679990,3cyclictest11496-21cut20:40:151
19679990,2cyclictest29725-21sshd21:51:351
19679990,2cyclictest275-21systemd-journal23:36:581
19679990,2cyclictest275-21systemd-journal00:35:581
19679990,2cyclictest11445-21cut22:00:131
19679990,1cyclictest0-21swapper/123:40:571
31602280,0sleep30-21swapper/300:28:083
19769985,2cyclictest658-21snmpd23:21:333
19719987,1cyclictest28-21ksoftirqd/220:15:012
19719987,1cyclictest28-21ksoftirqd/219:40:002
19719986,1cyclictest28-21ksoftirqd/221:45:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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