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2025-12-23 - 06:32
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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 Tue Dec 23, 2025 00:44:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
145292315288,17sleep20-21swapper/219:07:302
145962277249,18sleep10-21swapper/119:08:171
145832258225,20sleep30-21swapper/319:08:073
144012257227,19sleep00-21swapper/019:06:070
6982630,0sleep20-21swapper/223:25:112
260672590,0sleep30-21swapper/319:30:223
98022520,0sleep00-21swapper/022:32:320
233642180,0sleep20-21swapper/200:15:012
164992140,0sleep3331rcuc/321:35:133
14839991110,1cyclictest34-21ksoftirqd/322:45:023
1483999109,1cyclictest34-21ksoftirqd/319:15:003
1483999109,1cyclictest34-21ksoftirqd/300:00:003
1483999108,2cyclictest34-21ksoftirqd/323:20:003
1483999107,2cyclictest34-21ksoftirqd/320:00:013
1482699109,1cyclictest12-21ksoftirqd/021:20:000
148399997,2cyclictest34-21ksoftirqd/320:25:003
148399997,2cyclictest34-21ksoftirqd/300:00:003
148399997,1cyclictest34-21ksoftirqd/322:20:023
148399997,1cyclictest34-21ksoftirqd/320:54:593
148399996,2cyclictest34-21ksoftirqd/322:05:013
148399996,2cyclictest34-21ksoftirqd/320:05:013
148269992,4cyclictest26548-21turbostat19:35:000
148399987,1cyclictest34-21ksoftirqd/322:15:013
148399987,1cyclictest34-21ksoftirqd/321:50:013
148399987,1cyclictest34-21ksoftirqd/321:00:003
148399987,1cyclictest331rcuc/321:15:013
148399986,2cyclictest34-21ksoftirqd/323:30:003
148399986,2cyclictest34-21ksoftirqd/320:20:013
148399986,2cyclictest34-21ksoftirqd/320:05:023
148399986,2cyclictest34-21ksoftirqd/319:15:013
148399985,2cyclictest34-21ksoftirqd/300:05:003
148399982,4cyclictest34-21ksoftirqd/323:25:133
148399982,4cyclictest34-21ksoftirqd/319:20:193
148399982,2cyclictest34-21ksoftirqd/323:05:163
148399981,5cyclictest34-21ksoftirqd/322:05:253
148399981,5cyclictest34-21ksoftirqd/321:30:153
148349984,2cyclictest275-21systemd-journal20:24:252
148309983,3cyclictest503-21rs:main1
148269987,1cyclictest12-21ksoftirqd/020:40:000
9538270,0sleep30-21swapper/321:20:123
30545270,1sleep20-21swapper/200:30:162
148399976,1cyclictest34-21ksoftirqd/321:20:003
148399976,1cyclictest34-21ksoftirqd/320:15:013
148399976,1cyclictest34-21ksoftirqd/300:30:013
148399975,2cyclictest34-21ksoftirqd/323:20:003
148399973,3cyclictest658-21snmpd21:02:533
148399972,3cyclictest34-21ksoftirqd/322:55:193
148399972,3cyclictest34-21ksoftirqd/322:48:493
148399972,3cyclictest34-21ksoftirqd/320:25:213
148399972,3cyclictest34-21ksoftirqd/320:25:213
148399972,3cyclictest30988-21cron19:45:013
148399972,3cyclictest26321-21grep21:55:203
148399972,3cyclictest0-21swapper/321:05:193
148399971,4cyclictest34-21ksoftirqd/323:35:193
148399971,4cyclictest34-21ksoftirqd/322:35:273
148399971,4cyclictest34-21ksoftirqd/321:50:173
148399971,4cyclictest34-21ksoftirqd/319:25:133
148399971,4cyclictest18327-21cat22:50:203
148399971,1cyclictest34-21ksoftirqd/320:40:193
148399970,5cyclictest34-21ksoftirqd/322:30:173
148399970,5cyclictest34-21ksoftirqd/322:25:183
148399970,5cyclictest34-21ksoftirqd/319:35:183
148399970,4cyclictest34-21ksoftirqd/320:30:143
148399970,3cyclictest32725-21uniq00:35:173
148349975,1cyclictest28-21ksoftirqd/219:35:012
148349973,3cyclictest658-21snmpd22:38:372
148349973,3cyclictest275-21systemd-journal23:02:322
148349972,3cyclictest560-21gdbus00:20:012
148309973,3cyclictest275-21systemd-journal23:30:551
148309972,1cyclictest0-21swapper/119:25:011
148309970,7cyclictest13089-21users21:25:211
148309970,6cyclictest504-21dbus-daemon21:50:261
148309970,4cyclictest2479-21ls23:30:011
148309970,1cyclictest0-21swapper/120:05:141
148269973,3cyclictest658-21snmpd20:10:310
148269973,3cyclictest658-21snmpd19:41:260
148269973,3cyclictest16043-21sed19:10:190
148269973,3cyclictest14497-21cron22:45:020
148269971,3cyclictest3337-21munin-run22:20:010
148399965,1cyclictest34-21ksoftirqd/323:15:003
148399965,1cyclictest34-21ksoftirqd/322:20:023
148399963,2cyclictest658-21snmpd23:00:083
148399962,3cyclictest658-21snmpd00:12:463
148399962,3cyclictest34-21ksoftirqd/321:26:403
148399962,3cyclictest26307-21grep20:45:133
148399962,3cyclictest25874-21cat00:20:143
148399962,3cyclictest18447-21ls21:40:103
148399962,3cyclictest141rcu_preempt00:32:313
148399961,3cyclictest34-21ksoftirqd/323:45:253
148399961,3cyclictest34-21ksoftirqd/323:40:143
148399961,3cyclictest34-21ksoftirqd/320:38:463
148399960,4cyclictest34-21ksoftirqd/323:50:163
148399960,4cyclictest34-21ksoftirqd/319:50:133
148399960,4cyclictest34-21ksoftirqd/319:45:193
148399960,4cyclictest0-21swapper/300:18:133
148349966,0cyclictest0-21swapper/220:30:192
148349963,2cyclictest658-21snmpd23:52:312
148349963,2cyclictest658-21snmpd21:37:442
148349963,2cyclictest658-21snmpd00:37:342
148349963,2cyclictest504-21dbus-daemon22:04:112
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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