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2024-09-08 - 08:53
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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 Sun Sep 08, 2024 00:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
78132305270,23sleep10-21swapper/119:08:231
77582286220,21sleep00-21swapper/019:07:420
78992271211,47sleep30-21swapper/319:09:293
77042265228,22sleep20-21swapper/219:07:192
15752650,0sleep00-21swapper/000:15:300
134732630,0sleep10-21swapper/123:15:011
135262620,0sleep20-21swapper/221:20:202
32902590,0sleep10-21swapper/121:36:171
117312590,0sleep20-21swapper/223:57:332
159252530,0sleep10-21swapper/119:25:121
77212200,0sleep00-21swapper/023:32:450
271872190,0sleep30-21swapper/323:24:153
24712170,0sleep00-21swapper/022:44:440
23612150,0sleep20-21swapper/223:06:322
211782150,0sleep30-21swapper/323:41:503
167152150,0sleep00-21swapper/022:31:100
133312110,0sleep30-21swapper/322:06:353
804799105,3cyclictest19982-21systemd-journal21:25:531
804599109,1cyclictest12-21ksoftirqd/000:00:010
164242100,0sleep10-21swapper/100:29:491
148442100,0sleep10-21swapper/122:08:061
80559997,1cyclictest3016-21sh20:10:013
80559993,4cyclictest19982-21systemd-journal19:15:183
80519994,3cyclictest19982-21systemd-journal21:39:152
80519992,4cyclictest19818-21perf19:35:012
80479994,3cyclictest19982-21systemd-journal22:34:181
80479994,3cyclictest19982-21systemd-journal19:34:051
80459998,1cyclictest12-21ksoftirqd/023:20:010
80459996,2cyclictest12-21ksoftirqd/020:15:010
80459993,3cyclictest11054-21perf00:25:010
23144290,6sleep00-21swapper/000:05:530
1686290,1sleep00-21swapper/023:50:230
80559984,3cyclictest508-21dbus-daemon19:34:543
80559983,3cyclictest19982-21systemd-journal00:01:303
80559980,7cyclictest28992-21df_inode21:55:133
80479986,1cyclictest22-21ksoftirqd/120:15:001
80479985,2cyclictest508-21dbus-daemon23:39:231
80479985,2cyclictest22-21ksoftirqd/121:00:001
80479984,3cyclictest19982-21systemd-journal22:19:561
80479983,3cyclictest19982-21systemd-journal23:16:521
80459984,3cyclictest508-21dbus-daemon23:36:520
80459984,3cyclictest508-21dbus-daemon21:27:080
80459983,3cyclictest502-21systemd-logind22:58:050
80459983,3cyclictest19982-21systemd-journal23:49:590
80459983,3cyclictest19982-21systemd-journal22:28:020
80459983,3cyclictest19982-21systemd-journal00:29:020
80459980,7cyclictest25626-21ssh00:36:580
80459980,3cyclictest15574-21/usr/sbin/munin19:25:190
80559974,2cyclictest5057-21users22:00:213
80559974,2cyclictest19982-21systemd-journal20:48:013
80559973,3cyclictest6761-21expr22:25:153
80559973,3cyclictest19982-21systemd-journal20:34:553
80559973,3cyclictest10313-21apt-get20:25:123
80559973,2cyclictest19982-21systemd-journal23:13:253
80559973,1cyclictest0-21swapper/323:50:123
80559973,1cyclictest0-21swapper/322:50:023
80559973,1cyclictest0-21swapper/322:47:583
80559973,1cyclictest0-21swapper/322:38:393
80559972,3cyclictest19982-21systemd-journal20:37:033
80559972,3cyclictest19982-21systemd-journal00:14:593
80559971,1cyclictest141rcu_preempt22:55:393
80559970,7cyclictest0-21swapper/300:17:293
80559970,2cyclictest0-21swapper/323:16:053
80519976,1cyclictest20494-21ssh23:41:112
80519974,2cyclictest19982-21systemd-journal21:02:062
80519973,3cyclictest19982-21systemd-journal20:53:202
80519973,3cyclictest19982-21systemd-journal20:14:572
80519973,3cyclictest19982-21systemd-journal00:32:222
80519973,3cyclictest13954-21apt-get23:15:122
80519973,3cyclictest1-21systemd19:13:132
80519973,3cyclictest0-21swapper/200:22:402
80519973,1cyclictest0-21swapper/223:00:422
80519973,1cyclictest0-21swapper/200:35:342
80519973,1cyclictest0-21swapper/200:01:382
80519972,3cyclictest19982-21systemd-journal22:30:012
80519972,3cyclictest19982-21systemd-journal22:03:002
80519972,3cyclictest19982-21systemd-journal20:28:432
80519972,3cyclictest19982-21systemd-journal20:05:472
80479976,1cyclictest30483-21diskmemload00:10:081
80479974,2cyclictest19982-21systemd-journal00:03:341
80479973,3cyclictest7661-21lldpd22:55:421
80479973,3cyclictest30654-21snmpd20:31:541
80479973,3cyclictest19982-21systemd-journal21:20:011
80479973,3cyclictest15213-21sshd22:53:251
80479973,3cyclictest0-21swapper/100:37:281
80479973,1cyclictest0-21swapper/123:42:151
80479973,1cyclictest0-21swapper/121:31:111
80479971,5cyclictest6895-21latency_hist23:54:591
80479970,5cyclictest19982-21systemd-journal22:21:481
80479970,3cyclictest11441-21ssh22:28:191
80459974,2cyclictest508-21dbus-daemon21:47:090
80459974,2cyclictest508-21dbus-daemon20:23:180
80459973,3cyclictest30654-21snmpd00:32:550
80459973,3cyclictest28852-21diskstats23:25:120
80459973,3cyclictest19982-21systemd-journal21:54:400
80459973,3cyclictest19982-21systemd-journal20:25:480
80459973,3cyclictest19982-21systemd-journal00:12:030
80459973,2cyclictest19982-21systemd-journal22:47:390
80459973,2cyclictest14653-40rsyslog-rotate00:00:010
80459973,1cyclictest0-21swapper/023:05:220
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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