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2026-04-12 - 02:55
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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
Characteristics of the 100 highest latencies:
System rack1slot3.osadl.org (updated Sun Apr 12, 2026 00:43:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
206533991610,5cyclictest0-21swapper/322:50:133
206533991412,1cyclictest0-21swapper/321:35:113
206533991412,1cyclictest0-21swapper/320:30:133
206533991411,1cyclictest0-21swapper/319:55:133
206533991313,0cyclictest0-21swapper/322:00:123
20653399130,11cyclictest0-21swapper/323:30:123
20653399130,11cyclictest0-21swapper/319:50:123
20653399130,11cyclictest0-21swapper/319:50:113
20653399130,11cyclictest0-21swapper/300:20:113
206533991211,0cyclictest0-21swapper/321:40:113
206533991211,0cyclictest0-21swapper/319:20:103
206533991211,0cyclictest0-21swapper/300:05:123
206533991210,0cyclictest0-21swapper/322:25:113
20653399120,8cyclictest0-21swapper/320:55:123
20653399120,11cyclictest0-21swapper/323:15:133
20653399119,1cyclictest0-21swapper/322:45:123
206533991110,0cyclictest0-21swapper/323:35:113
20653399110,9cyclictest0-21swapper/319:25:013
20653399110,10cyclictest0-21swapper/323:42:353
20653399110,10cyclictest0-21swapper/323:05:133
20653399110,10cyclictest0-21swapper/321:24:563
20653399110,10cyclictest0-21swapper/320:55:013
20653399110,10cyclictest0-21swapper/319:15:013
20653399110,0cyclictest0-21swapper/321:10:013
20653399110,0cyclictest0-21swapper/320:20:143
20653399110,0cyclictest0-21swapper/319:30:163
20653399109,1cyclictest0-21swapper/300:15:023
20653399109,1cyclictest0-21swapper/300:15:013
20653399109,0cyclictest0-21swapper/322:20:113
206533991010,0cyclictest0-21swapper/321:45:013
206533991010,0cyclictest0-21swapper/321:30:193
206533991010,0cyclictest0-21swapper/300:25:133
206533991010,0cyclictest0-21swapper/300:00:133
206533991010,0cyclictest0-21swapper/300:00:003
20653399100,9cyclictest0-21swapper/323:00:193
20653399100,0cyclictest0-21swapper/322:40:183
20653399100,0cyclictest0-21swapper/322:40:013
20653399100,0cyclictest0-21swapper/322:05:133
2065339999,0cyclictest0-21swapper/322:15:123
2065339999,0cyclictest0-21swapper/320:10:133
2065339999,0cyclictest0-21swapper/319:19:563
2065339988,0cyclictest0-21swapper/323:50:013
2065339988,0cyclictest0-21swapper/322:00:013
2065339988,0cyclictest0-21swapper/321:50:183
2065339988,0cyclictest0-21swapper/300:10:133
2065339980,7cyclictest0-21swapper/321:10:193
2065339977,0cyclictest0-21swapper/322:55:173
2065339977,0cyclictest0-21swapper/320:35:183
2065339977,0cyclictest0-21swapper/320:10:003
2065339977,0cyclictest0-21swapper/320:00:123
2065339970,6cyclictest0-21swapper/320:45:133
2065339970,0cyclictest0-21swapper/320:45:013
206356271,1sleep10-21swapper/119:09:561
204455271,4sleep30-21swapper/319:05:013
2065339966,0cyclictest0-21swapper/319:50:003
2065339966,0cyclictest0-21swapper/319:50:003
2065339966,0cyclictest0-21swapper/300:35:123
2065339966,0cyclictest0-21swapper/300:30:173
2065339960,5cyclictest310194-21turbostat23:29:553
2065339960,5cyclictest0-21swapper/320:25:133
206201261,1sleep20-21swapper/219:07:572
267239251,2sleep2267380-21cat21:40:182
244631250,1sleep1191rcu_preempt20:45:131
2065339955,0cyclictest0-21swapper/323:20:123
2065339955,0cyclictest0-21swapper/323:10:173
2065339955,0cyclictest0-21swapper/322:30:533
2065339955,0cyclictest0-21swapper/320:18:413
2065339955,0cyclictest0-21swapper/319:45:013
2065339955,0cyclictest0-21swapper/319:35:103
2065339954,0cyclictest0-21swapper/321:20:013
2065339950,0cyclictest0-21swapper/323:47:253
14039850,3rtkit-daemon302699-21/usr/sbin/munin23:05:171
288448240,3sleep2288713-21/usr/sbin/munin22:30:212
2065339941,3cyclictest26450irq/132-ahci[0000:00:17.0]21:25:113
2065339940,3cyclictest251732-21chrt21:00:553
2065339940,2cyclictest0-21swapper/322:10:133
14039840,2rtkit-daemon766-21snmpd23:55:312
14039840,2rtkit-daemon766-21snmpd23:16:481
14039840,2rtkit-daemon766-21snmpd21:28:171
14039840,2rtkit-daemon440-21systemd-udevd20:09:581
14039840,2rtkit-daemon311370-21mailstats23:25:182
14039840,2rtkit-daemon249740-21users20:55:201
14039840,2rtkit-daemon1-21systemd22:18:121
14039840,2rtkit-daemon1-21systemd21:32:011
14039840,1rtkit-daemon295841-21apt-get22:50:131
14039840,0rtkit-daemon0-21swapper/121:15:031
329498230,2sleep2329569-21/usr/sbin/munin00:10:122
311935230,2sleep00-21swapper/023:27:100
236959230,1sleep1236985-21apt-get20:25:131
231202230,2sleep2231203-21/usr/sbin/munin20:10:132
212849231,1sleep246-21ksoftirqd/219:24:012
207175230,0sleep00-21swapper/019:10:140
205518231,1sleep00-21swapper/019:05:190
14039830,2rtkit-daemon769-21ntpd23:00:161
14039830,2rtkit-daemon769-21ntpd21:00:221
14039830,2rtkit-daemon766-21snmpd21:56:561
14039830,2rtkit-daemon766-21snmpd00:15:182
14039830,2rtkit-daemon766-21snmpd00:15:182
14039830,2rtkit-daemon1410-21sendmail-mta20:02:221
14039830,2rtkit-daemon1410-21sendmail-mta19:58:121
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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