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2026-07-24 - 10:34
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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 rackeslot8.osadl.org (updated Fri Jul 24, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
16547732690,1sleep00-21swapper/021:10:190
1496421992926,1cyclictest0-21swapper/321:10:003
1496421992724,1cyclictest0-21swapper/322:40:173
1496421992623,1cyclictest0-21swapper/300:00:123
1496421992522,1cyclictest0-21swapper/320:00:213
1496421992421,1cyclictest0-21swapper/323:00:213
1496421992320,1cyclictest0-21swapper/323:50:123
1496421992320,1cyclictest0-21swapper/321:20:163
149642199222,15cyclictest1645755-21taskset21:02:533
1496421992219,1cyclictest0-21swapper/322:20:193
1496421992219,1cyclictest0-21swapper/321:40:163
1496421992219,1cyclictest0-21swapper/320:20:223
149642199221,15cyclictest1935643-21taskset00:10:003
1496421992118,1cyclictest0-21swapper/323:20:073
1496421992118,1cyclictest0-21swapper/322:40:003
1496421992118,1cyclictest0-21swapper/320:40:053
1496421992118,1cyclictest0-21swapper/320:40:043
1496421992118,1cyclictest0-21swapper/319:40:133
1496421992118,1cyclictest0-21swapper/300:20:013
1496421992117,1cyclictest0-21swapper/320:20:003
149642199211,14cyclictest1856743-21taskset23:19:563
19114092201,10sleep21911415-21ssh23:53:482
1496421992018,1cyclictest0-21swapper/323:40:193
1496421992017,1cyclictest0-21swapper/322:16:053
1496421992017,1cyclictest0-21swapper/322:10:013
1496421992017,1cyclictest0-21swapper/322:00:213
149642199201,13cyclictest1575697-21taskset20:10:013
1496421992010,7cyclictest18397202sleep323:06:183
149642199199,7cyclictest16135282sleep320:35:363
1496421991917,0cyclictest0-21swapper/322:00:013
1496421991916,1cyclictest0-21swapper/323:40:013
1496421991916,1cyclictest0-21swapper/322:15:003
1496421991916,1cyclictest0-21swapper/320:10:003
149642199191,14cyclictest1902442-21taskset23:45:393
149642199191,13cyclictest1778398-21chrt22:30:133
149642199191,13cyclictest1639496-21turbostat21:00:003
149642199188,7cyclictest16007572sleep320:25:573
1496421991815,1cyclictest0-21swapper/321:10:293
1496421991815,1cyclictest0-21swapper/319:50:193
1496421991815,1cyclictest0-21swapper/300:20:293
149642199181,14cyclictest1817285-21taskset22:54:233
149642199181,13cyclictest1880326-21taskset23:34:563
149642199181,13cyclictest1871908-21taskset23:28:153
149642199181,13cyclictest1777783-21taskset22:29:173
149642199181,13cyclictest1699464-21sleep21:40:013
149642199181,13cyclictest1681432-21taskset21:25:223
149642199181,13cyclictest1660363-21taskset21:15:083
149642199181,13cyclictest1626414-21taskset20:46:123
149642199180,13cyclictest1841087-21sleep23:14:563
1496421991715,1cyclictest0-21swapper/300:25:263
1496421991714,1cyclictest0-21swapper/322:55:273
1496421991714,1cyclictest0-21swapper/319:10:013
1496421991714,1cyclictest0-21swapper/300:10:173
149642199171,13cyclictest1918601-21taskset23:57:013
149642199171,13cyclictest1808955-21taskset22:48:083
149642199171,13cyclictest1562183-21taskset19:55:303
149642199171,13cyclictest1548880-21taskset19:45:233
149642199171,13cyclictest1536658-21taskset19:37:303
149642199171,13cyclictest1524359-21chrt19:30:113
149642199171,13cyclictest1502626-21taskset19:13:353
149642199171,12cyclictest1715416-21taskset21:50:033
149642199171,12cyclictest1683952-21taskset21:30:023
149642199171,12cyclictest1523716-21taskset19:25:393
14966242162,4sleep01496620-21apt-get19:10:130
149642199161,12cyclictest1975249-21taskset00:35:063
149642199161,12cyclictest1967339-21taskset00:30:083
149642199161,12cyclictest1632719-21taskset20:50:303
149642199161,12cyclictest1511515-21taskset19:20:053
149642199161,12cyclictest1510895-21taskset19:15:413
149642199161,11cyclictest1713690-21taskset21:45:553
149642199160,12cyclictest1606221-21taskset20:30:173
17386552150,12sleep21738661-21ssh22:04:502
18351192141,10sleep01836692-21cut23:05:190
17783492141,3sleep10-21swapper/122:30:121
16893012142,4sleep11689333-21ntpq21:30:211
15375492140,7sleep11537644-21ps19:40:171
14902302142,5sleep01490257-21apt-get19:05:120
18555882130,3sleep11855594-21ssh23:16:431
17631032131,1sleep10-21swapper/122:20:181
17442162131,4sleep11744266-21ntpq22:05:211
17049782130,9sleep11699488-21sendmail-msp21:40:241
19741662120,9sleep11974170-21ssh00:33:011
19448402121,3sleep11945560-21ssh00:15:201
19269852120,9sleep11926991-21ssh00:03:021
19147712121,8sleep01916468-21tr23:55:180
18551662120,9sleep21855172-21ssh23:15:282
18325772121,4sleep2222-21plymouthd23:03:172
18259652121,7sleep01826120-21/usr/sbin/munin23:00:170
17924252121,8sleep21792431-21ssh22:36:222
17390032121,8sleep0222-21plymouthd22:05:040
15616772121,8sleep21561716-21/usr/sbin/munin19:55:252
15243242121,2sleep20-21swapper/219:30:112
15183092120,1sleep10-21swapper/119:25:171
19701362111,7sleep01971837-21kthreadcore00:30:190
19342402110,1sleep20-21swapper/200:06:202
18872002110,1sleep21887206-21ssh23:37:092
18728862110,8sleep01872895-21grep23:30:120
18397872110,1sleep10-21swapper/123:06:291
18161962110,8sleep01816202-21ssh22:51:230
17952062110,8sleep11795950-21grep22:40:191
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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