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2026-09-19 - 07:40
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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 Sep 19, 2026 00:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
16592304273,20sleep20-21swapper/219:09:462
15382274214,49sleep30-21swapper/319:08:143
16732270238,20sleep10-21swapper/119:09:571
15572263238,16sleep00-21swapper/019:08:270
252852650,0sleep00-21swapper/021:29:280
252852650,0sleep00-21swapper/021:29:280
88292630,0sleep30-21swapper/300:12:423
166262620,0sleep00-21swapper/023:20:010
28282600,0sleep00-21swapper/023:30:180
310922580,0sleep30-21swapper/323:47:223
174352570,0sleep10-21swapper/100:17:511
10132570,0sleep10-21swapper/123:10:161
26462560,0sleep30-21swapper/323:30:163
176002550,0sleep00-21swapper/022:03:130
4222500,0sleep20-21swapper/223:10:142
107102380,0sleep00-21swapper/000:14:060
246372170,0sleep20-21swapper/221:28:592
246372170,0sleep20-21swapper/221:28:592
183742170,0sleep10-21swapper/123:40:121
60892150,0sleep20-21swapper/223:51:262
180112150,0sleep00-21swapper/020:55:130
74692140,0sleep10-21swapper/100:11:381
122552140,0sleep30-21swapper/321:20:583
187372120,0sleep10-21swapper/123:01:321
170562120,0sleep30-21swapper/323:20:123
18089997,1cyclictest34-21ksoftirqd/323:05:013
8836280,1sleep10-21swapper/122:55:241
18089985,2cyclictest34-21ksoftirqd/319:15:013
18039984,2cyclictest14415-21snmpd22:04:482
18039983,3cyclictest275-21systemd-journal21:10:002
31054270,0sleep10-21swapper/122:50:111
18089974,2cyclictest19391-40runlevel00:00:003
18089973,3cyclictest560-21gdbus21:20:003
18089973,3cyclictest275-21systemd-journal23:10:493
18089973,3cyclictest21560-21awk22:05:193
18089973,3cyclictest20184-21cat00:00:133
18089973,1cyclictest0-21swapper/300:05:383
18089972,3cyclictest275-21systemd-journal20:10:013
18089970,3cyclictest30192-21smart_sda22:10:203
18039973,3cyclictest504-21dbus-daemon23:42:092
18039973,3cyclictest275-21systemd-journal20:50:012
18039973,3cyclictest275-21systemd-journal00:24:592
18039973,3cyclictest12397-21smart_sda20:40:182
18039973,2cyclictest275-21systemd-journal23:20:012
18039973,1cyclictest0-21swapper/223:32:372
18039971,3cyclictest3966-21munin-run19:15:002
18039970,6cyclictest17616-21dump-pmu-power20:55:002
18039970,6cyclictest0-21swapper/222:55:152
18039970,4cyclictest21096-21awk22:25:012
18009973,3cyclictest504-21dbus-daemon21:15:011
18009973,3cyclictest14415-21snmpd23:59:571
18009973,3cyclictest14415-21snmpd23:18:401
18009973,2cyclictest275-21systemd-journal21:58:111
17959973,3cyclictest504-21dbus-daemon19:20:010
17959973,3cyclictest14415-21snmpd23:44:290
17959972,4cyclictest13424-21acpi00:35:140
18089966,0cyclictest0-21swapper/322:51:333
18089965,1cyclictest34-21ksoftirqd/320:55:013
18089965,1cyclictest34-21ksoftirqd/320:00:013
18089963,2cyclictest663-21runrttasks22:56:333
18089963,2cyclictest501-21in:imuxsock20:20:513
18089963,2cyclictest4450-21ssh22:34:153
18089963,2cyclictest3558-21awk21:35:183
18089963,2cyclictest32046-21sh00:26:163
18089963,2cyclictest23971-21ssh23:43:183
18089963,2cyclictest21590-21taskset22:44:293
18089963,2cyclictest20099-21/usr/sbin/munin21:00:153
18089963,2cyclictest19248-21tr19:45:183
18089963,2cyclictest17698-21ssh00:37:173
18089963,2cyclictest15021-21sshd22:01:153
18089963,2cyclictest14415-21snmpd22:49:573
18089963,2cyclictest14415-21snmpd21:54:353
18089963,2cyclictest13366-21ssh00:15:173
18089963,2cyclictest11325-21systemctl23:35:193
18089962,3cyclictest9030-21cat23:15:123
18089962,3cyclictest7124-21sed22:35:183
18089962,3cyclictest5915-21expr00:30:153
18089962,3cyclictest17998-21expr20:55:133
18089962,3cyclictest16282-21cat19:40:123
18089962,3cyclictest14443-21sed20:45:193
18089962,3cyclictest14415-21snmpd23:53:033
18089962,3cyclictest14415-21snmpd23:26:323
18089962,3cyclictest14415-21snmpd22:29:403
18089962,3cyclictest14415-21snmpd21:41:403
18089962,3cyclictest14415-21snmpd21:12:363
18089962,3cyclictest14415-21snmpd20:44:093
18089962,3cyclictest14415-21snmpd20:30:513
18089962,3cyclictest14415-21snmpd20:26:413
18089962,3cyclictest14415-21snmpd19:51:353
18089962,3cyclictest14415-21snmpd19:17:253
18089962,3cyclictest14415-21snmpd00:22:553
18089962,3cyclictest1160-21unixbench-2d20:15:193
18089962,1cyclictest0-21swapper/322:18:133
18089962,1cyclictest0-21swapper/321:32:073
18089960,6cyclictest0-21swapper/321:56:133
18089960,6cyclictest0-21swapper/321:46:513
18089960,5cyclictest27549-21tr20:05:123
18089960,3cyclictest23903-21ls23:05:133
18039963,2cyclictest5020-21sensors_temp21:55:192
18039963,2cyclictest28593-21ssh22:48:302
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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