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2026-08-20 - 09:46
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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 Aug 20, 2026 00:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
104992295268,17sleep20-21swapper/219:09:122
102102277246,20sleep10-21swapper/119:05:291
103602266235,20sleep00-21swapper/019:07:250
102902263231,21sleep30-21swapper/319:06:323
38532580,0sleep10-21swapper/120:05:121
252452540,0sleep20-21swapper/222:21:402
167562530,0sleep00-21swapper/000:13:210
120922370,0sleep30-21swapper/321:35:193
9032180,0sleep20-21swapper/221:48:162
207602170,0sleep10-21swapper/122:38:491
50362160,0sleep00-21swapper/021:12:050
275842150,0sleep20-21swapper/200:39:422
202862130,0sleep00-21swapper/023:36:010
134872120,0sleep20-21swapper/223:12:572
1067999129,2cyclictest34-21ksoftirqd/319:15:013
322312110,0sleep30-21swapper/319:55:133
1067999119,2cyclictest34-21ksoftirqd/300:00:003
1067999119,1cyclictest34-21ksoftirqd/321:10:003
10679991110,1cyclictest34-21ksoftirqd/321:25:013
10679991110,1cyclictest34-21ksoftirqd/321:15:013
10679991110,1cyclictest34-21ksoftirqd/300:25:003
1067999103,5cyclictest34-21ksoftirqd/323:30:013
1067299107,2cyclictest22-21ksoftirqd/119:15:011
106652100,0sleep00-21swapper/022:51:290
106799998,1cyclictest34-21ksoftirqd/323:10:013
106799998,1cyclictest34-21ksoftirqd/319:15:013
106799998,1cyclictest34-21ksoftirqd/300:10:013
106799998,1cyclictest34-21ksoftirqd/300:00:003
106799997,2cyclictest34-21ksoftirqd/322:40:013
106799993,4cyclictest34-21ksoftirqd/321:42:483
106729994,3cyclictest275-21systemd-journal23:10:321
106689999,0cyclictest121ksoftirqd/000:00:000
4027280,0sleep20-21swapper/220:05:132
18564280,0sleep2271rcuc/222:56:112
106799987,1cyclictest34-21ksoftirqd/323:00:023
106799987,1cyclictest34-21ksoftirqd/320:30:003
106799987,1cyclictest34-21ksoftirqd/320:15:013
106799986,2cyclictest34-21ksoftirqd/321:35:003
106799985,2cyclictest34-21ksoftirqd/300:30:003
106799983,3cyclictest34-21ksoftirqd/323:45:543
106799983,3cyclictest34-21ksoftirqd/322:53:203
106799983,3cyclictest34-21ksoftirqd/300:35:103
106799983,3cyclictest141rcu_preempt23:36:143
106799983,1cyclictest34-21ksoftirqd/322:15:143
106799982,4cyclictest34-21ksoftirqd/323:14:163
106799982,4cyclictest34-21ksoftirqd/322:40:133
106799982,4cyclictest34-21ksoftirqd/322:31:223
106799982,4cyclictest34-21ksoftirqd/322:28:193
106799982,4cyclictest34-21ksoftirqd/321:55:543
106799982,4cyclictest34-21ksoftirqd/300:30:283
106799981,5cyclictest34-21ksoftirqd/322:23:233
106799981,5cyclictest34-21ksoftirqd/321:50:573
106799981,5cyclictest34-21ksoftirqd/321:45:213
106799981,5cyclictest34-21ksoftirqd/321:23:293
106799981,5cyclictest34-21ksoftirqd/321:12:593
106799981,5cyclictest34-21ksoftirqd/300:15:563
106799981,4cyclictest34-21ksoftirqd/323:51:183
106729980,1cyclictest141rcu_preempt20:20:111
106689984,3cyclictest12631-21kworker/u8:023:31:410
106689981,4cyclictest26229-21awk20:55:000
106689980,5cyclictest440-21munin-run23:25:010
106689980,3cyclictest27772-21ssh00:20:110
8968270,0sleep20-21swapper/222:31:132
3898270,0sleep20-21swapper/222:09:342
13280270,0sleep00-21swapper/022:15:090
106799976,1cyclictest34-21ksoftirqd/320:55:003
106799976,1cyclictest34-21ksoftirqd/320:50:003
106799972,3cyclictest32512-21ssh22:45:203
106799972,1cyclictest34-21ksoftirqd/323:20:083
106799972,1cyclictest141rcu_preempt22:10:173
106799971,4cyclictest34-21ksoftirqd/320:35:183
106799971,4cyclictest34-21ksoftirqd/320:05:193
106799971,4cyclictest34-21ksoftirqd/319:20:163
106799971,4cyclictest0-21swapper/323:26:033
106799971,4cyclictest0-21swapper/320:40:193
106799970,5cyclictest34-21ksoftirqd/323:44:153
106799970,5cyclictest34-21ksoftirqd/322:55:043
106799970,5cyclictest34-21ksoftirqd/322:05:233
106799970,5cyclictest34-21ksoftirqd/320:31:543
106799970,5cyclictest34-21ksoftirqd/300:10:423
106799970,4cyclictest34-21ksoftirqd/323:15:173
106799970,2cyclictest34-21ksoftirqd/322:00:123
106779974,2cyclictest26190-21sh23:00:392
106779974,2cyclictest25895-21sshd00:18:582
106779973,3cyclictest9122-21anacron21:34:082
106779973,2cyclictest275-21systemd-journal00:00:002
106779970,0cyclictest0-21swapper/222:15:122
106729976,1cyclictest0-21swapper/122:43:111
106729975,1cyclictest22-21ksoftirqd/122:50:011
106729973,3cyclictest3346-21cut21:50:031
106729973,3cyclictest30727-21snmpd21:13:481
106729973,3cyclictest30727-21snmpd21:01:441
106729973,3cyclictest275-21systemd-journal22:15:251
106729973,3cyclictest275-21systemd-journal00:27:441
106729973,3cyclictest13511-21cat20:25:161
106729971,3cyclictest24519-21munin-run23:20:011
106729970,4cyclictest20210-21munin-run19:30:011
106729970,4cyclictest20210-21munin-run19:30:011
106729970,4cyclictest1439-21idleruntime-cro23:45:011
106689973,3cyclictest275-21systemd-journal20:36:510
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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