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2026-05-14 - 08:19
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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 Thu May 14, 2026 00:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
317382280250,20sleep20-21swapper/219:08:562
316942277248,19sleep10-21swapper/119:08:231
316202264238,18sleep00-21swapper/019:07:250
316812258231,18sleep30-21swapper/319:08:133
236382670,0sleep00-21swapper/022:47:040
185852670,0sleep30-21swapper/322:25:013
174572640,0sleep20-21swapper/222:05:112
6252630,1sleep3624-21smartctl00:30:183
268322610,0sleep20-21swapper/223:09:102
224432610,0sleep00-21swapper/021:48:420
220422590,0sleep00-21swapper/022:07:280
218242590,0sleep30-21swapper/322:45:393
144902550,0sleep1211rcuc/123:00:591
168822530,0sleep20-21swapper/200:20:212
64142190,0sleep00-21swapper/022:56:050
239202190,3sleep334-21ksoftirqd/323:06:533
205452190,0sleep00-21swapper/021:27:470
277802180,0sleep10-21swapper/123:29:221
156682160,0sleep20-21swapper/222:03:582
50372150,0sleep30-21swapper/322:35:383
307292140,0sleep20-21swapper/222:51:112
182222130,0sleep00-21swapper/000:21:220
31938991210,1cyclictest34-21ksoftirqd/300:00:003
31931991110,1cyclictest22-21ksoftirqd/122:20:001
31931991110,1cyclictest22-21ksoftirqd/100:00:001
3193199109,1cyclictest22-21ksoftirqd/100:10:001
3193199108,1cyclictest22-21ksoftirqd/119:25:011
319319990,1cyclictest6566-21munin-run20:35:001
7197280,0sleep00-21swapper/022:18:010
4271280,1sleep00-21swapper/023:34:490
319389983,3cyclictest275-21systemd-journal00:20:563
319319987,1cyclictest22-21ksoftirqd/123:00:011
319319987,1cyclictest22-21ksoftirqd/122:55:021
319319987,1cyclictest22-21ksoftirqd/122:00:001
319319987,1cyclictest22-21ksoftirqd/121:40:001
319319987,1cyclictest22-21ksoftirqd/121:10:001
319319987,1cyclictest22-21ksoftirqd/121:00:001
319319987,1cyclictest22-21ksoftirqd/120:45:001
319319986,1cyclictest22-21ksoftirqd/123:15:021
319319985,2cyclictest22-21ksoftirqd/123:50:011
319319981,5cyclictest141rcu_preempt23:32:591
319319980,1cyclictest141rcu_preempt19:40:121
319279987,1cyclictest12-21ksoftirqd/019:15:010
319279986,1cyclictest12192-21ssh23:39:340
319279981,4cyclictest15810-21dump-pmu-power20:55:000
31131280,0sleep20-21swapper/222:32:092
14137280,1sleep10-21swapper/100:19:511
319389973,3cyclictest658-21snmpd21:57:473
319389973,3cyclictest504-21dbus-daemon00:38:523
319389973,3cyclictest4267-21sshd19:16:443
319369976,1cyclictest0-21swapper/221:53:192
319369975,1cyclictest30662-21awk20:15:172
319369974,2cyclictest29307-21cron23:50:012
319369973,3cyclictest13755-21sshd00:38:452
319369972,3cyclictest275-21systemd-journal19:54:462
319319976,1cyclictest22-21ksoftirqd/122:40:011
319319976,1cyclictest22-21ksoftirqd/120:05:001
319319976,1cyclictest22-21ksoftirqd/100:20:011
319319976,1cyclictest22-21ksoftirqd/100:00:011
319319976,0cyclictest221ksoftirqd/122:50:011
319319975,2cyclictest22-21ksoftirqd/119:15:011
319319974,2cyclictest141rcu_preempt21:25:101
319319973,3cyclictest22-21ksoftirqd/123:55:001
319319973,3cyclictest18564-21sshd21:45:441
319319971,4cyclictest18262-21dump-pmu-power19:50:021
319319970,3cyclictest22-21ksoftirqd/119:15:111
319319970,1cyclictest141rcu_preempt19:55:121
319279975,2cyclictest12-21ksoftirqd/022:40:010
319279973,3cyclictest658-21snmpd19:32:100
319279973,3cyclictest658-21snmpd00:35:380
319279973,1cyclictest20423-21sh23:25:010
26663270,1sleep20-21swapper/222:30:012
3572260,0sleep30-21swapper/321:36:593
319389966,0cyclictest0-21swapper/323:15:093
319389963,2cyclictest6552-21cron20:39:553
319389963,2cyclictest29861-21ssh22:31:093
319389963,2cyclictest26754-21ssh00:26:353
319389963,2cyclictest26381-21ssh21:11:363
319389963,2cyclictest21529-21sh23:25:143
319389963,2cyclictest20432-21ssh22:06:143
319389963,2cyclictest13731-21ntpq23:20:183
319389963,2cyclictest10832-21ssh23:38:313
319389963,2cyclictest0-21swapper/321:50:043
319389962,3cyclictest658-21snmpd23:53:103
319389962,3cyclictest658-21snmpd23:00:123
319389962,3cyclictest658-21snmpd22:21:023
319389962,3cyclictest658-21snmpd22:16:263
319389962,3cyclictest658-21snmpd22:12:143
319389962,3cyclictest658-21snmpd21:49:383
319389962,3cyclictest658-21snmpd21:20:513
319389962,3cyclictest658-21snmpd21:04:143
319389962,3cyclictest658-21snmpd20:48:533
319389962,3cyclictest658-21snmpd20:15:103
319389962,3cyclictest658-21snmpd20:04:163
319389962,3cyclictest658-21snmpd19:31:093
319389962,3cyclictest658-21snmpd19:10:063
319389962,3cyclictest3730-21awk22:55:123
319389962,3cyclictest32528-21sed21:15:193
319389962,3cyclictest28416-21cat20:10:143
319389962,3cyclictest22787-21cut23:45:193
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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