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2025-11-22 - 07:13
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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 Sat Nov 22, 2025 00:44:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
263132295264,20sleep20-21swapper/219:06:442
262672275241,21sleep30-21swapper/319:06:093
245162265228,22sleep10-21swapper/119:05:021
245742260226,22sleep00-21swapper/019:05:050
251952620,0sleep10-21swapper/100:13:401
74922600,0sleep00-21swapper/021:25:160
176362590,0sleep20-21swapper/222:38:082
126282560,0sleep30-21swapper/321:29:173
103072520,0sleep00-21swapper/022:33:080
52662190,0sleep10-21swapper/122:07:401
221392170,0sleep00-21swapper/023:25:190
258832160,0sleep10-21swapper/123:27:591
138302160,0sleep00-21swapper/021:51:050
2668299115,4cyclictest19982-21systemd-journal21:19:203
27240290,3sleep012-21ksoftirqd/023:50:570
266829994,3cyclictest19982-21systemd-journal21:32:173
266829994,3cyclictest19982-21systemd-journal00:05:013
24863290,0sleep00-21swapper/022:42:570
266829987,1cyclictest0-21swapper/320:35:333
266829987,1cyclictest0-21swapper/320:35:333
266829986,1cyclictest0-21swapper/323:15:173
266829984,3cyclictest29741-11brltty23:30:213
266829984,2cyclictest19982-21systemd-journal22:33:243
266829983,4cyclictest0-21swapper/322:06:253
266829983,3cyclictest19982-21systemd-journal22:10:153
266829983,3cyclictest19982-21systemd-journal19:37:213
266829983,3cyclictest19982-21systemd-journal00:38:523
266799984,3cyclictest508-21dbus-daemon19:19:132
266799984,3cyclictest20403-21awk21:55:222
266799983,3cyclictest7661-21lldpd19:20:212
266799983,3cyclictest19982-21systemd-journal21:21:192
266799983,3cyclictest19982-21systemd-journal20:34:182
266799983,3cyclictest19982-21systemd-journal20:15:562
266799981,4cyclictest18273-21munin-run21:55:012
266749984,3cyclictest19982-21systemd-journal21:46:261
266749984,3cyclictest19982-21systemd-journal20:15:011
266749982,3cyclictest19982-21systemd-journal23:15:201
266749981,4cyclictest20911-21idleruntime-cro21:34:591
266749980,5cyclictest13432-21munin-run00:05:001
266709984,3cyclictest508-21dbus-daemon19:50:290
266709983,3cyclictest19982-21systemd-journal19:12:330
266709983,3cyclictest19982-21systemd-journal00:28:460
7634270,0sleep20-21swapper/200:00:172
6382270,1sleep16492-21awk20:45:181
29286270,0chrt22-21ksoftirqd/122:45:231
266829974,2cyclictest668-21runrttasks22:15:413
266829973,3cyclictest508-21dbus-daemon21:00:003
266829973,3cyclictest27084-21diskstats20:20:163
266829973,3cyclictest24754-21sensors_temp22:20:183
266829973,3cyclictest19982-21systemd-journal22:30:013
266829973,3cyclictest19982-21systemd-journal21:10:243
266829973,3cyclictest19982-21systemd-journal19:46:213
266829973,3cyclictest17232-21diskstats23:00:163
266829973,3cyclictest13946-21sed22:35:193
266829973,3cyclictest1-21systemd22:42:233
266829973,3cyclictest0-21swapper/321:49:553
266829973,3cyclictest0-21swapper/300:10:123
266829973,1cyclictest0-21swapper/322:57:473
266829972,3cyclictest19982-21systemd-journal21:05:093
266829972,3cyclictest19982-21systemd-journal21:00:593
266829972,3cyclictest19982-21systemd-journal19:31:023
266829972,2cyclictest1944-21sshd23:11:373
266829971,4cyclictest19982-21systemd-journal23:53:433
266829971,2cyclictest19982-21systemd-journal00:00:003
266799974,2cyclictest508-21dbus-daemon20:01:452
266799974,2cyclictest31775-21diskstats23:10:182
266799974,2cyclictest20231-21/usr/sbin/munin00:10:182
266799973,3cyclictest508-21dbus-daemon23:00:012
266799973,3cyclictest508-21dbus-daemon20:10:002
266799973,3cyclictest16628-21sed19:55:192
266799973,3cyclictest0-21swapper/200:18:322
266799973,1cyclictest0-21swapper/223:52:132
266799973,1cyclictest0-21swapper/223:20:482
266799973,1cyclictest0-21swapper/221:48:052
266799973,1cyclictest0-21swapper/221:40:372
266799973,1cyclictest0-21swapper/221:11:402
266799972,3cyclictest19982-21systemd-journal22:33:382
266799971,4cyclictest19982-21systemd-journal23:32:012
266799970,3cyclictest6246-21ssh23:15:112
266749974,2cyclictest502-21systemd-logind22:59:041
266749974,2cyclictest11736-21in:imuxsock22:20:171
266749974,2cyclictest11736-21in:imuxsock19:35:001
266749974,1cyclictest565-21latency_hist22:05:021
266749973,3cyclictest19982-21systemd-journal19:27:581
266749973,3cyclictest17664-21seq00:07:461
266749973,3cyclictest0-21swapper/123:37:201
266749973,3cyclictest0-21swapper/100:24:411
266749973,3cyclictest0-21swapper/100:24:411
266749973,1cyclictest0-21swapper/122:28:221
266749972,4cyclictest9404-21awk22:10:181
266749972,4cyclictest0-21swapper/121:10:191
266749972,3cyclictest5187-21awk20:45:001
266749972,3cyclictest19982-21systemd-journal23:04:041
266749972,3cyclictest19982-21systemd-journal19:55:001
266709974,2cyclictest508-21dbus-daemon20:53:050
266709974,2cyclictest11736-21in:imuxsock00:16:400
266709974,2cyclictest10719-21/usr/sbin/munin19:45:170
266709973,3cyclictest508-21dbus-daemon23:22:020
266709973,3cyclictest508-21dbus-daemon22:15:010
266709973,3cyclictest30654-21snmpd19:23:530
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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