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2026-07-20 - 09:02
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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 Mon Jul 20, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
57190822940,3sleep244-21ksoftirqd/222:30:012
290580993027,1cyclictest0-21swapper/323:20:003
290580993027,1cyclictest0-21swapper/321:20:053
290580992521,1cyclictest0-21swapper/323:40:213
290580992521,1cyclictest0-21swapper/323:40:213
290580992422,1cyclictest0-21swapper/321:20:013
290580992421,1cyclictest0-21swapper/322:00:193
290580992421,1cyclictest0-21swapper/322:00:183
290580992421,1cyclictest0-21swapper/319:40:213
290580992421,1cyclictest0-21swapper/300:20:263
290580992320,1cyclictest0-21swapper/322:55:253
290580992320,1cyclictest0-21swapper/319:20:013
290580992220,1cyclictest0-21swapper/322:40:193
290580992219,1cyclictest0-21swapper/323:00:203
290580992219,1cyclictest0-21swapper/321:00:143
29058099221,16cyclictest556246-21sleep22:20:003
290580992118,1cyclictest0-21swapper/319:50:003
29058099211,16cyclictest367107-21taskset20:05:243
290580992017,1cyclictest0-21swapper/323:35:003
290580992017,1cyclictest0-21swapper/322:35:273
290580992017,1cyclictest0-21swapper/322:30:183
290580992017,1cyclictest0-21swapper/321:59:593
290580992017,1cyclictest0-21swapper/321:30:223
290580992016,1cyclictest0-21swapper/323:05:183
290580992016,1cyclictest0-21swapper/320:50:183
29058099201,15cyclictest356446-21taskset19:55:463
29058099201,14cyclictest775476-21turbostat00:40:013
29058099201,14cyclictest727367-21taskset00:06:233
290580991917,1cyclictest0-21swapper/320:40:113
290580991916,1cyclictest0-21swapper/322:25:153
290580991916,1cyclictest0-21swapper/321:40:033
290580991916,1cyclictest0-21swapper/321:27:193
290580991916,1cyclictest0-21swapper/319:20:193
290580991916,1cyclictest0-21swapper/300:30:013
29058099191,14cyclictest602499-21taskset22:47:573
29058099191,14cyclictest386937-21taskset20:20:203
29058099191,14cyclictest386937-21taskset20:20:203
29058099191,13cyclictest673994-21taskset23:35:013
7146882181,8sleep0714743-21cut00:00:210
290580991815,1cyclictest0-21swapper/321:50:193
290580991815,1cyclictest0-21swapper/319:15:013
290580991815,1cyclictest0-21swapper/300:00:003
29058099181,13cyclictest743591-21taskset00:17:553
29058099181,13cyclictest734152-21taskset00:10:213
29058099181,13cyclictest704205-21taskset23:52:213
29058099181,13cyclictest563077-21taskset22:22:083
29058099181,13cyclictest508027-21taskset21:46:273
29058099181,13cyclictest433555-21taskset20:57:483
29058099181,13cyclictest330258-21taskset19:35:253
29058099181,13cyclictest324511-21taskset19:32:173
29058099181,12cyclictest389235-21chrt20:25:133
29058099177,7cyclictest3629092sleep320:00:433
290580991715,1cyclictest0-21swapper/323:20:053
290580991714,1cyclictest0-21swapper/323:45:183
290580991714,1cyclictest0-21swapper/322:50:193
290580991714,1cyclictest0-21swapper/321:35:173
290580991714,1cyclictest0-21swapper/321:10:193
290580991714,1cyclictest0-21swapper/300:00:133
29058099171,13cyclictest758792-21taskset00:26:333
29058099171,13cyclictest539575-21taskset22:07:083
29058099171,12cyclictest664545-21taskset23:26:033
29058099171,12cyclictest540849-21taskset22:10:053
29058099171,12cyclictest401450-21taskset20:30:543
6496992160,9sleep1649705-21ssh23:18:321
3813102161,4sleep1381450-21ntpq20:15:211
29058099162,11cyclictest344271-21taskset19:50:123
29058099161,12cyclictest634898-21taskset23:10:113
29058099161,12cyclictest440502-21taskset21:05:063
29058099161,12cyclictest420684-21taskset20:46:063
29058099161,12cyclictest407858-21taskset20:36:273
29058099161,12cyclictest376264-21taskset20:15:073
29058099161,12cyclictest369891-21taskset20:10:093
29058099161,12cyclictest317829-21taskset19:25:273
5776782151,2sleep00-21swapper/022:30:280
3878242157,6sleep00-21swapper/020:20:220
3878242157,6sleep00-21swapper/020:20:210
2902592150,2sleep30-21swapper/319:07:353
5957422141,9sleep1595775-21apt-get22:45:121
5465272141,3sleep0222-21plymouthd22:10:270
5019922140,10sleep1502038-21grep21:45:141
6492062131,9sleep2649212-21ssh23:17:092
5313452130,9sleep0531350-21sh22:00:570
5313452130,9sleep0531350-21sh22:00:570
4771092130,10sleep1477115-21ssh21:27:291
3653462130,9sleep2367106-21cut20:05:242
7518952121,2sleep20-21swapper/200:24:042
7106722120,9sleep2710718-21ssh23:55:212
6518682129,1sleep00-21swapper/023:20:180
6479872121,8sleep00-21swapper/023:15:220
5893002121,3sleep0590321-21kthreadcore22:40:180
2890792127,2sleep00-21swapper/019:05:210
7460972110,8sleep1747190-21grep00:20:171
7132932111,6sleep2222-21plymouthd00:00:152
7116312110,8sleep0711637-21ssh23:56:240
6972952110,8sleep2697337-21awk23:49:592
5961482111,7sleep2596581-21sed22:45:162
5932262110,3sleep1593267-21ntpq22:40:231
5577882110,8sleep1558514-21cat22:20:181
4626942111,7sleep2462375-21sendmail-msp21:20:132
4616222110,8sleep2461628-21ssh21:18:092
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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