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2025-11-27 - 05:59
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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 Thu Nov 27, 2025 00:44:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
135492323291,20sleep20-21swapper/219:09:352
135432315246,23sleep10-21swapper/119:09:301
133622277244,21sleep00-21swapper/019:07:070
134112260225,22sleep30-21swapper/319:07:473
314262680,0sleep00-21swapper/023:20:190
63102610,0sleep30-21swapper/300:10:273
272822610,0sleep00-21swapper/023:18:100
229172590,1sleep20-21swapper/221:45:592
50792580,0sleep10-21swapper/122:40:141
195892200,0sleep20-21swapper/222:28:232
250672160,0sleep20-21swapper/221:25:192
45642150,0sleep10-21swapper/122:18:051
57422140,0sleep00-21swapper/000:36:380
275552140,0chrt0-21swapper/000:27:500
267292140,0sleep20-21swapper/200:01:482
175582140,0sleep30-21swapper/323:33:233
127512100,1sleep30-21swapper/320:15:203
21479290,0sleep30-21swapper/322:07:213
9286280,0sleep20-21swapper/223:05:192
137009984,2cyclictest19982-21systemd-journal19:16:443
137009983,3cyclictest19982-21systemd-journal21:49:213
137009983,3cyclictest19982-21systemd-journal20:26:123
137009983,3cyclictest19982-21systemd-journal00:00:003
136959985,2cyclictest28-21ksoftirqd/223:05:002
136959984,3cyclictest19982-21systemd-journal23:41:132
136959984,3cyclictest19982-21systemd-journal23:21:442
136959984,3cyclictest19982-21systemd-journal20:50:012
136959982,3cyclictest18202-21perf22:50:002
136959982,3cyclictest15374-21munin-run21:20:012
136959982,3cyclictest15374-21munin-run21:20:012
136919984,3cyclictest19982-21systemd-journal21:31:171
136919984,3cyclictest19982-21systemd-journal20:50:351
136919983,3cyclictest19982-21systemd-journal22:51:111
136919983,3cyclictest19982-21systemd-journal22:07:231
136919982,3cyclictest2259-21apt19:54:591
136869987,1cyclictest12-21ksoftirqd/000:00:000
136869983,3cyclictest19982-21systemd-journal22:23:200
136869983,3cyclictest19982-21systemd-journal20:28:550
30051270,0sleep10-21swapper/121:00:201
26324270,0sleep1211rcuc/121:49:011
137009974,2cyclictest508-21dbus-daemon23:21:383
137009974,2cyclictest508-21dbus-daemon19:22:103
137009974,2cyclictest508-21dbus-daemon19:22:093
137009973,3cyclictest7661-21lldpd21:28:543
137009973,3cyclictest30654-21snmpd20:38:543
137009973,3cyclictest30654-21snmpd19:25:283
137009973,3cyclictest0-21swapper/323:09:073
137009973,2cyclictest19982-21systemd-journal21:10:123
137009973,1cyclictest0-21swapper/323:00:133
137009971,4cyclictest19982-21systemd-journal21:36:553
137009970,7cyclictest0-21swapper/323:39:593
137009970,6cyclictest15374-21grep19:10:203
137009970,3cyclictest24220-21/usr/sbin/munin20:50:183
136959975,1cyclictest24955-21sh23:16:032
136959974,2cyclictest28019-21sendmail-msp19:40:012
136959974,2cyclictest22904-21systemctl23:59:592
136959973,3cyclictest9847-21cat23:50:182
136959973,3cyclictest5358-21idleruntime-cro21:35:012
136959973,3cyclictest508-21dbus-daemon21:05:002
136959973,3cyclictest29741-11brltty20:03:522
136959973,3cyclictest1945-21ntpq21:10:162
136959973,2cyclictest19982-21systemd-journal19:22:102
136959973,2cyclictest19982-21systemd-journal19:22:102
136959973,1cyclictest4070-21perf00:09:592
136959973,1cyclictest0-21swapper/221:52:572
136959972,3cyclictest19982-21systemd-journal23:10:202
136959972,3cyclictest19982-21systemd-journal22:31:292
136959972,3cyclictest17049-21dump-pmu-power22:05:002
136959971,3cyclictest14104-21munin-run22:25:012
136959970,4cyclictest8627-21basename23:50:002
136959970,4cyclictest28455-21munin-run21:00:002
136959970,2cyclictest18648-21ssh21:21:032
136919974,2cyclictest472-21diskmemload23:00:201
136919973,3cyclictest920-21awk21:10:111
136919973,3cyclictest508-21dbus-daemon20:56:521
136919973,3cyclictest508-21dbus-daemon19:35:551
136919973,3cyclictest32316-21sshd19:48:191
136919973,3cyclictest30654-21snmpd19:14:421
136919973,3cyclictest19982-21systemd-journal23:06:431
136919973,3cyclictest19982-21systemd-journal20:05:331
136919973,3cyclictest0-21swapper/123:49:401
136919973,3cyclictest0-21swapper/123:41:021
136919973,3cyclictest0-21swapper/122:14:051
136919973,1cyclictest0-21swapper/100:23:341
136919973,1cyclictest0-21swapper/100:09:161
136919972,3cyclictest23512-21cron19:30:011
136919972,3cyclictest19982-21systemd-journal20:37:151
136919970,3cyclictest16735-21/usr/sbin/munin19:15:191
136919970,1cyclictest22134-21ssh21:24:171
136869974,2cyclictest51950irq/137-enp4s0-22:10:140
136869974,2cyclictest508-21dbus-daemon20:09:440
136869974,2cyclictest12-21ksoftirqd/020:50:010
136869974,2cyclictest11702-21expr22:00:220
136869973,3cyclictest508-21dbus-daemon23:15:010
136869973,3cyclictest508-21dbus-daemon21:10:010
136869973,3cyclictest32156-21cat21:30:170
136869973,3cyclictest29741-11brltty22:37:240
136869973,3cyclictest2158-21df_inode23:45:120
136869973,3cyclictest0-21swapper/023:40:490
136869973,3cyclictest0-21swapper/022:57:280
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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