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2026-01-09 - 05:21
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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 Fri Jan 09, 2026 00:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
130362317291,17sleep20-21swapper/219:06:512
131422274243,20sleep00-21swapper/019:07:560
131332270238,21sleep10-21swapper/119:07:491
132812260230,20sleep30-21swapper/319:09:453
84212630,0sleep00-21swapper/022:27:490
257992590,0sleep20-21swapper/223:53:562
242052590,0sleep20-21swapper/222:55:302
266352570,0sleep10-21swapper/120:47:351
73012560,0sleep10-21swapper/121:49:501
16552560,0sleep00-21swapper/023:39:560
283222550,0sleep00-21swapper/020:50:190
143422520,0sleep20-21swapper/220:20:142
251682180,0sleep20-21swapper/222:18:502
253802160,0sleep10-21swapper/122:37:431
146262140,0sleep30-21swapper/300:05:263
12082140,0sleep21207-21ssh23:20:132
4032120,0sleep00-21swapper/021:45:170
1342499108,2cyclictest12-21ksoftirqd/022:25:000
709290,0sleep00-21swapper/023:58:030
134339996,2cyclictest28-21ksoftirqd/200:00:002
134249998,1cyclictest12-21ksoftirqd/000:39:590
4648280,1sleep3331rcuc/321:47:533
2383280,1sleep00-21swapper/022:43:180
18348280,0sleep00-21swapper/000:26:410
134409984,3cyclictest275-21systemd-journal23:27:553
134409984,3cyclictest21302-21rm00:28:523
134409980,7cyclictest23076-21ssh21:58:463
134339987,1cyclictest28-21ksoftirqd/200:00:012
134339984,3cyclictest275-21systemd-journal22:22:412
134289984,3cyclictest16045-21sshd23:48:001
134249984,3cyclictest275-21systemd-journal21:35:000
134249984,3cyclictest275-21systemd-journal19:20:010
134249984,3cyclictest26973-21sshd22:57:350
134249983,3cyclictest10279-21cron23:45:000
8152270,0sleep30-21swapper/320:05:173
7784270,0sleep10-21swapper/121:30:191
16622270,0sleep10-21swapper/121:16:551
134409974,2cyclictest28649-21sshd00:32:593
134409974,2cyclictest28386-21ssh23:35:433
134409973,3cyclictest658-21snmpd23:15:583
134409973,3cyclictest658-21snmpd21:38:473
134409973,1cyclictest0-21swapper/323:40:573
134409973,1cyclictest0-21swapper/323:10:113
134409973,1cyclictest0-21swapper/300:22:453
134339973,3cyclictest7057-21memory00:20:152
134339973,3cyclictest658-21snmpd20:43:392
134339973,3cyclictest658-21snmpd19:55:322
134339973,3cyclictest658-21snmpd19:55:322
134339973,3cyclictest275-21systemd-journal23:40:572
134339973,3cyclictest275-21systemd-journal00:34:552
134339971,3cyclictest29075-21munin-run20:55:002
134339970,4cyclictest31415-21idleruntime-cro21:45:022
134289973,3cyclictest275-21systemd-journal21:26:571
134289973,3cyclictest275-21systemd-journal19:33:561
134289973,3cyclictest275-21systemd-journal19:17:571
134289973,3cyclictest15696-21cron20:25:001
134289972,3cyclictest6776-21basename20:05:021
134289971,3cyclictest275-21systemd-journal00:15:001
134249976,1cyclictest19952-21awk22:35:000
134249973,3cyclictest275-21systemd-journal00:17:520
134249973,2cyclictest275-21systemd-journal00:13:570
134249972,3cyclictest275-21systemd-journal00:01:570
134249972,3cyclictest22786-21systemctl21:40:000
134249971,3cyclictest9007-21munin-run20:10:010
28931260,0sleep328932-21pmu-power23:55:183
17321260,0sleep20-21swapper/222:14:222
134409965,1cyclictest0-21swapper/322:26:393
134409963,2cyclictest9804-21awk21:50:223
134409963,2cyclictest658-21snmpd21:41:113
134409963,2cyclictest504-21dbus-daemon21:05:053
134409963,2cyclictest32547-21gpgv23:20:003
134409963,2cyclictest31802-21ntpq23:00:153
134409963,2cyclictest31039-21sshd20:57:103
134409963,2cyclictest26302-21grep19:35:163
134409963,2cyclictest13260-21cron22:50:013
134409963,2cyclictest12606-21ssh21:15:053
134409963,1cyclictest0-21swapper/322:31:053
134409962,3cyclictest658-21snmpd23:31:333
134409962,3cyclictest658-21snmpd22:54:383
134409962,3cyclictest658-21snmpd21:31:073
134409962,3cyclictest658-21snmpd19:19:313
134409962,3cyclictest560-21gdbus19:45:013
134409962,3cyclictest5187-21ntpq21:10:153
134409962,3cyclictest31309-21awk00:15:183
134409962,3cyclictest31182-21run-parts21:25:173
134409962,3cyclictest22298-21ls19:25:193
134409962,3cyclictest21351-21rm23:50:393
134409962,3cyclictest19405-21cat19:20:143
134409962,3cyclictest18572-21entropy20:30:143
134409962,3cyclictest15081-21expr20:20:193
134409962,3cyclictest1-21systemd00:00:173
134409962,3cyclictest11209-21cron20:15:013
134409962,1cyclictest0-21swapper/323:45:453
134409962,1cyclictest0-21swapper/323:05:443
134409962,1cyclictest0-21swapper/322:41:203
134409962,1cyclictest0-21swapper/322:11:563
134409961,4cyclictest2599-21sh22:05:183
134409961,3cyclictest275-21systemd-journal22:56:563
134409961,3cyclictest275-21systemd-journal22:23:573
134409961,3cyclictest275-21systemd-journal19:59:563
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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