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2025-12-05 - 05:43
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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 Fri Dec 05, 2025 00:44:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
153162306272,21sleep20-21swapper/219:08:492
151792269235,22sleep10-21swapper/119:07:071
131872261227,22sleep00-21swapper/019:05:020
152402258223,23sleep30-21swapper/319:07:503
94222600,0sleep00-21swapper/021:55:020
87372580,0sleep10-21swapper/100:37:161
45472580,0sleep30-21swapper/300:34:203
308112540,0sleep20-21swapper/221:47:262
247612530,0sleep10-21swapper/122:04:481
303302200,0sleep00-21swapper/020:50:220
167602200,0sleep20-21swapper/223:52:562
127622200,0sleep20-21swapper/222:18:262
310182190,0sleep30-21swapper/322:30:523
206872190,0sleep30-21swapper/322:01:203
144232180,0sleep20-21swapper/221:57:522
304172170,0sleep00-21swapper/019:40:150
242102140,0sleep10-21swapper/123:11:551
228072140,0sleep10-21swapper/123:34:521
52892120,0sleep10-21swapper/119:55:211
1550999105,5cyclictest12-21ksoftirqd/022:20:000
31098290,0sleep30-21swapper/321:26:133
155219994,3cyclictest19982-21systemd-journal20:31:273
155219994,3cyclictest19982-21systemd-journal20:17:203
155179990,8cyclictest17251-21sh21:38:582
155139994,3cyclictest7661-21lldpd19:45:141
155099993,4cyclictest7661-21lldpd22:45:360
155219984,3cyclictest7661-21lldpd21:11:183
155219983,3cyclictest19982-21systemd-journal00:18:543
155219980,7cyclictest13577-21ssh22:41:173
155179985,2cyclictest508-21dbus-daemon21:01:352
155179984,3cyclictest30654-21snmpd22:42:222
155179984,3cyclictest19982-21systemd-journal22:02:402
155179983,3cyclictest19982-21systemd-journal23:58:032
155179983,3cyclictest19982-21systemd-journal23:44:432
155179983,3cyclictest19982-21systemd-journal22:08:462
155179983,3cyclictest19982-21systemd-journal00:20:002
155139985,2cyclictest25528-21sshd21:44:291
155139984,3cyclictest9829-21apt-get21:55:171
155139984,3cyclictest508-21dbus-daemon20:06:311
155139984,3cyclictest508-21dbus-daemon00:25:011
155139984,3cyclictest19982-21systemd-journal23:41:471
155139984,3cyclictest19982-21systemd-journal21:16:271
155139984,3cyclictest14152-21grep20:15:171
155139983,3cyclictest19982-21systemd-journal19:44:481
155099983,3cyclictest19982-21systemd-journal19:35:010
155099980,2cyclictest2643-21diskstats23:20:130
3773270,0sleep10-21swapper/121:05:161
155219976,1cyclictest34-21ksoftirqd/321:00:003
155219974,2cyclictest7490-21idleruntime-cro22:15:013
155219974,2cyclictest10471-21run-parts23:25:203
155219973,3cyclictest508-21dbus-daemon23:35:213
155219973,3cyclictest4790-21pmu-power21:30:243
155219973,3cyclictest19982-21systemd-journal23:09:283
155219973,3cyclictest19982-21systemd-journal20:21:423
155219973,3cyclictest19982-21systemd-journal19:56:333
155219973,3cyclictest0-21swapper/300:25:473
155219973,3cyclictest0-21swapper/300:25:473
155219973,2cyclictest19982-21systemd-journal19:11:003
155219972,3cyclictest502-21systemd-logind00:09:443
155219972,3cyclictest19982-21systemd-journal00:22:533
155219970,7cyclictest0-21swapper/321:43:463
155219970,2cyclictest30929-21df_inode23:40:143
155219970,2cyclictest19982-21systemd-journal22:54:293
155179974,2cyclictest15914-21latency_hist23:30:012
155179973,3cyclictest508-21dbus-daemon23:06:452
155179973,3cyclictest508-21dbus-daemon21:20:002
155179973,3cyclictest25659-21systemctl20:40:202
155179973,3cyclictest19982-21systemd-journal22:22:422
155179973,3cyclictest19982-21systemd-journal19:28:582
155179973,3cyclictest0-21swapper/200:02:392
155179973,2cyclictest502-21systemd-logind23:31:222
155179973,1cyclictest0-21swapper/222:48:262
155179973,1cyclictest0-21swapper/221:22:462
155179973,1cyclictest0-21swapper/200:06:542
155179972,3cyclictest19982-21systemd-journal23:12:542
155179972,3cyclictest19982-21systemd-journal19:57:192
155139976,1cyclictest22-21ksoftirqd/121:55:011
155139974,2cyclictest29931-21sshd22:07:391
155139974,2cyclictest19982-21systemd-journal23:17:031
155139974,2cyclictest17502-21sh20:25:001
155139973,3cyclictest737-21memory22:55:191
155139973,3cyclictest7151-21grep20:00:171
155139973,3cyclictest19982-21systemd-journal22:18:281
155139973,3cyclictest19982-21systemd-journal20:45:001
155139973,3cyclictest1-21systemd22:31:421
155139973,3cyclictest0-21swapper/121:22:161
155139973,3cyclictest0-21swapper/100:34:371
155139973,2cyclictest20523-21systemd-udevd23:36:191
155139973,1cyclictest0-21swapper/123:22:351
155139973,1cyclictest0-21swapper/123:07:061
155139973,1cyclictest0-21swapper/121:12:311
155139972,4cyclictest8248-21gltestperf00:10:161
155139972,3cyclictest19982-21systemd-journal23:29:171
155139972,3cyclictest19982-21systemd-journal22:22:411
155139972,3cyclictest19982-21systemd-journal19:36:271
155139972,3cyclictest19982-21systemd-journal00:00:001
155139971,5cyclictest22391-21fschecks_count22:25:161
155139970,6cyclictest23989-21ntpq19:25:161
155099975,1cyclictest0-21swapper/020:00:200
155099974,2cyclictest18159-21irqstats19:15:000
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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