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2024-02-22 - 05:38
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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 Wed Feb 21, 2024 12:44:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
135072317285,20sleep20-21swapper/207:06:592
135402305238,21sleep00-21swapper/007:07:250
135212289253,23sleep10-21swapper/107:07:101
136822257223,21sleep30-21swapper/307:09:173
46472620,0sleep10-21swapper/110:40:371
293342580,0sleep10-21swapper/108:55:011
44112520,0sleep00-21swapper/010:10:240
28482210,0sleep20-21swapper/207:55:202
306672130,0sleep20-21swapper/210:35:012
1385199105,3cyclictest19982-21systemd-journal10:16:390
138639994,3cyclictest19982-21systemd-journal10:03:183
138639990,2cyclictest26269-21df07:35:233
138599998,1cyclictest28-21ksoftirqd/209:40:002
138559995,2cyclictest19982-21systemd-journal10:32:051
16620280,1sleep03617-21diskmemload09:50:340
138639986,1cyclictest31665-21ssh12:29:443
138639984,3cyclictest19982-21systemd-journal07:51:033
138639983,3cyclictest19982-21systemd-journal10:45:523
138639983,3cyclictest19982-21systemd-journal08:59:533
138639983,3cyclictest19982-21systemd-journal07:26:013
138599983,3cyclictest19982-21systemd-journal11:08:242
138599983,3cyclictest19982-21systemd-journal09:21:352
138599982,3cyclictest29324-21munin-run08:55:012
138559984,3cyclictest19982-21systemd-journal12:35:471
138559983,3cyclictest19982-21systemd-journal08:21:551
138559983,3cyclictest19982-21systemd-journal08:13:341
138519984,3cyclictest19982-21systemd-journal12:04:420
138519983,3cyclictest19982-21systemd-journal10:37:570
138519983,3cyclictest19982-21systemd-journal09:15:250
138519980,7cyclictest0-21swapper/012:10:400
138519980,6cyclictest19982-21systemd-journal11:21:200
30691270,2sleep10-21swapper/110:05:011
22980270,0sleep10-21swapper/110:59:151
22980270,0sleep10-21swapper/110:59:151
138639973,3cyclictest508-21dbus-daemon10:50:023
138639973,3cyclictest508-21dbus-daemon10:17:053
138639973,3cyclictest3758-21snmpd11:01:183
138639973,3cyclictest3758-21snmpd10:30:483
138639973,3cyclictest3758-21snmpd09:05:423
138639973,3cyclictest3758-21snmpd07:20:193
138639973,3cyclictest22024-21sshd11:25:443
138639973,3cyclictest0-21swapper/312:30:433
138639973,2cyclictest19982-21systemd-journal12:15:523
138639973,1cyclictest0-21swapper/310:29:513
138639972,1cyclictest0-21swapper/311:15:223
138599974,2cyclictest11736-21in:imuxsock10:15:012
138599973,3cyclictest508-21dbus-daemon11:14:392
138599973,3cyclictest17914-21ntpq07:15:272
138599973,3cyclictest1-21systemd11:40:062
138599973,1cyclictest0-21swapper/212:17:222
138599972,3cyclictest19982-21systemd-journal12:10:012
138599972,3cyclictest19982-21systemd-journal10:46:162
138599972,3cyclictest19982-21systemd-journal09:03:132
138599972,3cyclictest19982-21systemd-journal08:01:292
138599971,3cyclictest9624-21perf09:45:002
138599971,3cyclictest15004-21idleruntime-cro09:50:002
138599970,7cyclictest30548-21runrttasks11:33:522
138559974,2cyclictest26266-21cron12:24:591
138559973,3cyclictest508-21dbus-daemon11:46:211
138559973,3cyclictest3758-21snmpd10:08:051
138559973,3cyclictest3758-21snmpd08:35:471
138559973,3cyclictest3758-21snmpd07:39:191
138559973,3cyclictest29958-21diskstats11:05:261
138559973,3cyclictest19982-21systemd-journal11:25:061
138559973,3cyclictest19982-21systemd-journal09:50:361
138559973,3cyclictest16969-21lldpd10:27:461
138559973,3cyclictest0-21swapper/109:25:021
138559973,1cyclictest0-21swapper/111:35:521
138559973,1cyclictest0-21swapper/110:45:571
138559973,1cyclictest0-21swapper/110:14:141
138559973,1cyclictest0-21swapper/109:46:561
138559972,3cyclictest19982-21systemd-journal11:45:001
138559972,3cyclictest19982-21systemd-journal08:55:011
138559972,3cyclictest19982-21systemd-journal08:28:111
138559972,3cyclictest19982-21systemd-journal08:15:401
138519974,2cyclictest508-21dbus-daemon09:55:480
138519973,3cyclictest508-21dbus-daemon12:38:550
138519973,3cyclictest508-21dbus-daemon08:51:330
138519973,3cyclictest3758-21snmpd10:00:200
138519973,3cyclictest19982-21systemd-journal08:06:040
138519973,3cyclictest19116-21gdbus07:55:000
138519973,3cyclictest0-21swapper/009:13:380
138519973,2cyclictest19982-21systemd-journal07:30:080
138519973,1cyclictest0-21swapper/012:18:410
138519972,3cyclictest19982-21systemd-journal11:25:420
138519971,3cyclictest6474-21rm09:40:330
138519971,3cyclictest2229-21turbostat11:10:000
138519971,3cyclictest18564-21uname11:50:240
138639964,1cyclictest4473-21df09:10:273
138639964,1cyclictest0-21swapper/308:36:563
138639963,2cyclictest6636-21ssh10:43:013
138639963,2cyclictest4971-21which10:10:373
138639963,2cyclictest3389-21cat11:10:263
138639963,2cyclictest18413-21ssh11:23:273
138639963,2cyclictest18355-21ssh11:50:233
138639963,2cyclictest14358-21cat08:20:233
138639963,2cyclictest0-21swapper/308:30:303
138639963,1cyclictest0-21swapper/309:25:023
138639963,1cyclictest0-21swapper/309:23:133
138639962,3cyclictest9192-21find08:10:233
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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