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2026-06-20 - 09:58
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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 Sat Jun 20, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3959025992825,1cyclictest0-21swapper/322:20:003
3959025992623,1cyclictest0-21swapper/322:25:013
3959025992522,1cyclictest0-21swapper/321:45:003
3959025992320,1cyclictest0-21swapper/300:10:193
395902599221,17cyclictest3999462-21taskset19:40:003
395902599221,15cyclictest75404-21taskset22:49:553
395902599221,15cyclictest75404-21taskset22:49:553
3959025992118,1cyclictest0-21swapper/323:35:263
3959025992118,1cyclictest0-21swapper/323:20:123
395902599211,15cyclictest4114897-21taskset21:10:013
3959025992018,1cyclictest0-21swapper/322:40:003
3959025992017,1cyclictest0-21swapper/323:51:463
3959025992017,1cyclictest0-21swapper/323:00:133
3959025992017,1cyclictest0-21swapper/323:00:003
395902599201,14cyclictest3986674-21sleep19:34:553
39732022190,10sleep13973361-21cat19:15:261
3959025991917,1cyclictest0-21swapper/319:10:223
3959025991916,1cyclictest0-21swapper/322:05:123
3959025991916,1cyclictest0-21swapper/321:35:003
3959025991916,1cyclictest0-21swapper/320:05:123
3959025991916,1cyclictest0-21swapper/319:15:023
395902599191,14cyclictest4057427-21taskset20:25:103
395902599191,14cyclictest181415-21taskset23:55:223
395902599191,14cyclictest112741-21taskset23:10:573
395902599191,13cyclictest59944-21sleep22:44:553
395902599191,13cyclictest44548-21turbostat22:30:003
395902599191,13cyclictest4191943-21sleep22:00:003
395902599191,13cyclictest4182342-21taskset21:50:263
395902599191,13cyclictest4070144-21taskset20:35:003
395902599190,14cyclictest106417-21taskset23:10:003
395902599189,6cyclictest40439562sleep320:11:053
3959025991816,1cyclictest0-21swapper/319:50:183
3959025991815,1cyclictest0-21swapper/323:40:103
3959025991814,1cyclictest0-21swapper/300:15:193
395902599181,13cyclictest81936-21taskset22:51:203
395902599181,13cyclictest5411-21taskset22:03:463
395902599181,13cyclictest4159426-21taskset21:35:313
395902599181,13cyclictest4143405-21chrt21:25:213
395902599181,13cyclictest4136570-21taskset21:21:193
395902599181,13cyclictest4108209-21taskset21:03:193
395902599181,13cyclictest4006159-21taskset19:45:053
395902599181,13cyclictest3999768-21chrt19:40:123
395902599181,13cyclictest3979587-21taskset19:20:403
395902599181,13cyclictest235602-21taskset00:30:233
395902599181,13cyclictest221375-21taskset00:22:293
395902599181,13cyclictest19961-21taskset22:11:113
395902599181,13cyclictest135801-21taskset23:25:483
395902599181,13cyclictest120583-21taskset23:16:213
395902599181,12cyclictest3980558-21chrt19:25:143
395902599178,7cyclictest4129417-21taskset21:18:073
395902599172,12cyclictest143484-21taskset23:30:413
3959025991715,1cyclictest0-21swapper/320:00:043
3959025991715,1cyclictest0-21swapper/300:05:043
3959025991714,1cyclictest0-21swapper/321:45:213
3959025991714,1cyclictest0-21swapper/320:50:123
3959025991714,1cyclictest0-21swapper/320:45:193
3959025991714,1cyclictest0-21swapper/320:40:063
3959025991714,1cyclictest0-21swapper/320:20:143
3959025991714,1cyclictest0-21swapper/300:35:523
3959025991714,1cyclictest0-21swapper/300:00:143
395902599171,13cyclictest228601-21taskset00:26:033
395902599171,12cyclictest44888-21chrt22:30:123
395902599171,12cyclictest4069530-21taskset20:30:273
395902599171,12cyclictest4050381-21taskset20:15:523
395902599171,12cyclictest162631-21taskset23:45:163
1505932171,5sleep0150646-21ps23:35:250
3959025991614,1cyclictest0-21swapper/319:10:013
3959025991613,1cyclictest0-21swapper/320:55:203
395902599161,12cyclictest4120884-21taskset21:10:483
395902599161,12cyclictest4024836-21taskset19:57:243
40253582148,3sleep1872-21in:imuxsock20:00:121
40203222143,8sleep04021328-21tr19:55:180
521612130,10sleep052167-21ssh22:34:460
432842131,4sleep143290-21ssh22:26:211
39994352131,10sleep13993055-21turbostat.cron19:39:551
39862872130,11sleep11000-21snmpd19:25:321
39687312131,9sleep03969206-21grep19:15:170
839462120,9sleep284862-21cut22:55:172
40312832121,1sleep20-21swapper/220:02:382
203782120,9sleep120384-21ssh22:12:221
1751662120,9sleep0175167-21sshd23:53:080
578772110,9sleep152562-21/usr/sbin/munin22:35:241
41907962110,8sleep24190802-21ssh21:56:432
39585902110,1sleep00-21swapper/019:06:060
1591442112,6sleep0222-21plymouthd23:41:130
1504562111,6sleep1150494-21ntpq23:35:221
1060932110,2sleep20-21swapper/223:09:082
757332102,4sleep175754-21apt-get22:50:111
501912101,6sleep150221-21ntpq22:30:221
41896622105,2sleep00-21swapper/021:55:210
41836192100,7sleep14183625-21ssh21:53:301
41681812100,7sleep04168187-21ssh21:43:390
41153882101,6sleep14115907-21cut21:10:151
40248772100,2sleep1222-21plymouthd19:57:551
40185502100,1sleep00-21swapper/019:53:410
40079152100,7sleep24009653-21cut19:45:172
40011382101,6sleep04002667-21kthreadcore19:40:190
39987552101,6sleep03998923-21wc19:35:250
39923462101,6sleep03992591-21unixbench_multi19:30:290
2421092101,7sleep1243015-21/usr/sbin/munin00:35:191
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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