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2026-05-19 - 02:07
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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 Tue May 19, 2026 00:43:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
71977999140,12cyclictest0-21swapper/323:50:133
71977999130,11cyclictest0-21swapper/323:55:093
71977999130,11cyclictest0-21swapper/320:15:113
719779991212,0cyclictest0-21swapper/300:15:133
719779991211,0cyclictest0-21swapper/321:15:153
719779991210,1cyclictest0-21swapper/321:05:123
71977999120,11cyclictest0-21swapper/322:10:133
71977999120,11cyclictest0-21swapper/321:20:113
719779991110,0cyclictest0-21swapper/321:50:103
719779991110,0cyclictest0-21swapper/321:50:013
719779991110,0cyclictest0-21swapper/320:25:003
71977999110,10cyclictest0-21swapper/321:00:193
71977999110,10cyclictest0-21swapper/320:00:153
71977999110,10cyclictest0-21swapper/319:45:133
71977999110,10cyclictest0-21swapper/319:34:563
71977999110,10cyclictest0-21swapper/300:10:193
71977999109,0cyclictest0-21swapper/321:40:153
719779991010,0cyclictest0-21swapper/323:10:003
719779991010,0cyclictest0-21swapper/319:55:133
719779991010,0cyclictest0-21swapper/319:15:013
719779991010,0cyclictest0-21swapper/300:35:193
71977999100,0cyclictest0-21swapper/323:40:113
71977999100,0cyclictest0-21swapper/322:25:143
71977999100,0cyclictest0-21swapper/319:45:003
7197799999,0cyclictest0-21swapper/323:31:043
7197799999,0cyclictest0-21swapper/319:35:183
7197799999,0cyclictest0-21swapper/319:20:173
7197799999,0cyclictest0-21swapper/300:31:513
7197799998,0cyclictest0-21swapper/322:15:143
7197799998,0cyclictest0-21swapper/321:35:113
7197799998,0cyclictest0-21swapper/319:10:163
7197799990,9cyclictest0-21swapper/320:25:163
7197799990,8cyclictest0-21swapper/320:40:173
7197799988,0cyclictest0-21swapper/323:30:013
7197799988,0cyclictest0-21swapper/321:55:183
7197799988,0cyclictest0-21swapper/320:45:123
7197799988,0cyclictest0-21swapper/319:29:553
7197799988,0cyclictest0-21swapper/300:05:133
7197799988,0cyclictest0-21swapper/300:00:203
7197799987,0cyclictest0-21swapper/321:33:043
7197799987,0cyclictest0-21swapper/321:10:113
7197799987,0cyclictest0-21swapper/320:05:143
718094281,5sleep30-21swapper/319:05:123
7197799977,0cyclictest0-21swapper/323:20:013
7197799977,0cyclictest0-21swapper/323:03:543
7197799977,0cyclictest0-21swapper/322:35:133
7197799977,0cyclictest0-21swapper/322:20:163
7197799977,0cyclictest0-21swapper/320:55:013
7197799977,0cyclictest0-21swapper/320:10:203
7197799971,5cyclictest0-21swapper/322:50:123
7197799970,6cyclictest0-21swapper/322:40:153
7197799966,0cyclictest0-21swapper/323:45:163
7197799966,0cyclictest0-21swapper/322:30:173
7197799966,0cyclictest0-21swapper/321:25:173
7197799965,0cyclictest0-21swapper/322:45:173
7197799965,0cyclictest0-21swapper/300:25:093
810694250,1sleep20-21swapper/222:55:172
7197799955,0cyclictest0-21swapper/323:20:133
7197799954,0cyclictest0-21swapper/323:37:353
7197799954,0cyclictest0-21swapper/322:00:133
7197799950,4cyclictest0-21swapper/300:20:193
719504250,1sleep10-21swapper/119:08:191
719438250,1sleep20-21swapper/219:07:282
7197799944,0cyclictest0-21swapper/323:10:113
7197799944,0cyclictest0-21swapper/319:50:233
7197799943,0cyclictest0-21swapper/322:55:033
7197799940,3cyclictest790310-21taskset22:05:183
7197799940,3cyclictest752456-21chrt20:31:323
7197799940,2cyclictest0-21swapper/320:50:133
718344241,1sleep00-21swapper/019:05:130
774772230,1sleep1774798-21apt-get21:30:111
757321230,2sleep1756819-21/usr/sbin/munin20:45:161
729037230,2sleep1729142-21timerandwakeup19:30:191
7197799933,0cyclictest0-21swapper/320:35:053
853031220,1sleep0853151-21telnet00:35:130
843976221,1sleep2451ktimers/200:13:382
841749220,1sleep10-21swapper/100:07:211
836950220,1sleep1836024-21/usr/sbin/munin23:55:161
836487220,1sleep2836640-21memory23:55:132
835667220,1sleep2835669-21ssh23:54:052
826317220,1sleep0826394-21/usr/sbin/munin23:30:170
820902220,1sleep0821155-21latency_hist23:20:020
818349220,0sleep00-21swapper/023:13:120
812023220,1sleep1812042-21munin-run23:00:001
798541220,1sleep1798695-21switchtime22:25:191
791167220,1sleep1791398-21latency_hist22:10:011
790137220,1sleep2790309-21python322:05:182
785277220,1sleep2441rcuc/221:55:132
777242220,1sleep0777326-21irqstats21:35:140
761403220,0sleep00-21swapper/020:55:160
755285220,0sleep00-21swapper/020:40:160
748131220,1sleep2748279-21find20:20:152
739666220,1sleep0739908-21tr20:00:130
854321210,0sleep20-21swapper/200:35:312
852980210,0sleep10-21swapper/100:35:021
851124210,0sleep20-21swapper/200:30:152
850764210,0sleep00-21swapper/000:30:130
850368210,0sleep20-21swapper/200:29:442
849011210,0sleep00-21swapper/000:25:130
848325210,0sleep10-21swapper/100:25:031
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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