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2026-05-06 - 15:00
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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 Wed May 06, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
41576992522,1cyclictest0-21swapper/323:20:213
41576992522,1cyclictest0-21swapper/322:15:003
41576992422,1cyclictest0-21swapper/323:40:003
41576992421,1cyclictest0-21swapper/319:55:013
41576992320,1cyclictest0-21swapper/322:30:003
41576992220,1cyclictest0-21swapper/321:45:163
41576992220,1cyclictest0-21swapper/320:40:193
41576992219,1cyclictest0-21swapper/320:50:243
41576992219,1cyclictest0-21swapper/300:17:343
41576992219,1cyclictest0-21swapper/300:17:333
41576992118,1cyclictest0-21swapper/321:20:263
41576992118,1cyclictest0-21swapper/321:10:203
41576992118,1cyclictest0-21swapper/320:20:003
41576992118,1cyclictest0-21swapper/319:45:273
41576992118,1cyclictest0-21swapper/319:15:223
4157699211,15cyclictest466312-21taskset23:59:593
4157699211,14cyclictest127185-21turbostat20:15:013
41576992018,0cyclictest0-21swapper/323:26:323
41576992017,1cyclictest0-21swapper/323:15:143
41576992017,1cyclictest0-21swapper/322:55:223
41576992017,1cyclictest0-21swapper/322:50:013
41576992017,1cyclictest0-21swapper/322:50:003
41576992017,1cyclictest0-21swapper/322:40:183
41576992017,1cyclictest0-21swapper/322:31:333
41576992017,1cyclictest0-21swapper/320:30:173
41576992017,1cyclictest0-21swapper/300:25:003
41576992017,1cyclictest0-21swapper/300:10:163
41576992017,1cyclictest0-21swapper/300:00:293
41576992011,5cyclictest0-21swapper/319:56:213
4157699192,13cyclictest251202-21taskset21:40:273
41576991916,1cyclictest0-21swapper/323:05:183
41576991916,1cyclictest0-21swapper/320:10:003
41576991915,1cyclictest0-21swapper/323:50:183
4157699191,16cyclictest133609-21turbostat20:24:563
4157699191,14cyclictest80759-21taskset19:35:203
4157699191,14cyclictest114180-21taskset20:02:463
41576991910,7cyclictest307319-21chrt22:17:233
4157699182,12cyclictest377984-21taskset23:00:583
41576991817,0cyclictest0-21swapper/321:25:203
41576991816,1cyclictest0-21swapper/322:50:193
41576991816,1cyclictest0-21swapper/319:40:023
41576991815,1cyclictest0-21swapper/322:35:533
41576991815,1cyclictest0-21swapper/321:50:123
41576991815,1cyclictest0-21swapper/321:30:103
41576991815,1cyclictest0-21swapper/321:10:013
41576991815,1cyclictest0-21swapper/320:55:183
41576991815,1cyclictest0-21swapper/319:10:003
41576991815,1cyclictest0-21swapper/300:30:213
41576991814,1cyclictest0-21swapper/300:35:233
4157699181,14cyclictest283910-21chrt22:03:043
4157699181,13cyclictest474554-21taskset00:05:133
4157699181,13cyclictest425176-21taskset23:30:373
4157699181,13cyclictest315608-21taskset22:23:263
41576991810,6cyclictest4498172sleep323:48:013
4157699180,13cyclictest63226-21taskset19:25:013
3957132181,9sleep0395917-21hddtemp_smartct23:15:150
3248662181,5sleep0325489-21cut22:30:160
41576991714,1cyclictest0-21swapper/323:40:173
41576991714,1cyclictest0-21swapper/322:05:123
41576991714,1cyclictest0-21swapper/321:15:173
41576991714,1cyclictest0-21swapper/300:25:233
41576991713,1cyclictest0-21swapper/319:20:213
4157699171,13cyclictest395076-21taskset23:14:463
4157699171,12cyclictest69649-21taskset19:30:063
4157699171,12cyclictest191437-21taskset21:04:563
4157699170,12cyclictest153154-21taskset20:35:003
41576991614,1cyclictest0-21swapper/321:35:133
4157699161,12cyclictest269128-21taskset21:55:113
4157699161,12cyclictest171834-21taskset20:45:383
4157699161,12cyclictest146099-21taskset20:25:303
3648962160,4sleep2365519-21tr22:55:162
3297442161,7sleep2329789-21ntpq22:30:232
413632150,2sleep30-21swapper/319:09:273
3692792151,5sleep0369327-21ntpq22:55:220
4191622140,10sleep1419167-21ssh23:30:041
3937802141,6sleep1222-21plymouthd23:11:121
129998140,9rtkit-daemon75481-21runrttasks19:31:022
815502130,4sleep281792-21uptime19:35:282
5291092131,3sleep00-21swapper/000:38:510
4887542130,10sleep2488762-21ssh00:11:222
2626802131,9sleep2263673-21grep21:50:182
1776572130,9sleep0177698-21ntpq20:50:210
5129932121,8sleep2513001-21ssh00:28:022
4983522121,6sleep0222-21plymouthd00:20:150
4833272121,3sleep1484060-21kthreadcore00:10:161
4642722120,3sleep10-21swapper/123:55:261
3872622121,8sleep2387266-21ssh23:09:522
3164962120,8sleep2316504-21ssh22:25:092
1789092123,4sleep1178911-21apt-get20:55:131
129998120,8rtkit-daemon501880-21grep00:20:211
129998120,8rtkit-daemon251831-21ssh21:41:442
129998120,7rtkit-daemon876-21gmain19:25:412
129998120,3rtkit-daemon222-21plymouthd22:01:430
4892982110,2sleep00-21swapper/000:12:520
4639552110,8sleep0464011-21ntpq23:55:210
3556762111,7sleep1355680-21ssh22:49:511
3556762111,7sleep1355680-21ssh22:49:501
3060982110,2sleep00-21swapper/022:15:250
2903532110,8sleep0284931-21/usr/sbin/munin22:05:230
2772802110,3sleep2277068-21/usr/sbin/munin22:00:162
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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