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2026-08-27 - 23:02
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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 Thu Aug 27, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
82724322880,1sleep10-21swapper/112:20:131
373017992725,1cyclictest0-21swapper/310:10:153
373017992724,1cyclictest0-21swapper/312:00:153
5533942260,7sleep1333726-21kworker/1:0+events09:25:161
373017992516,6cyclictest834755-21sleep12:25:013
373017992320,1cyclictest0-21swapper/312:35:213
373017992320,1cyclictest0-21swapper/311:00:013
373017992319,1cyclictest0-21swapper/310:40:143
373017992220,1cyclictest0-21swapper/311:00:103
37301799221,18cyclictest662167-21turbostat10:35:013
373017992119,1cyclictest0-21swapper/307:40:183
373017992118,1cyclictest0-21swapper/310:25:013
373017992118,1cyclictest0-21swapper/310:00:133
373017992118,1cyclictest0-21swapper/309:59:593
373017992118,1cyclictest0-21swapper/308:55:193
37301799211,15cyclictest373202-21chrt07:10:133
373017992017,1cyclictest0-21swapper/311:50:133
373017992017,1cyclictest0-21swapper/308:40:193
373017992017,1cyclictest0-21swapper/308:21:033
37301799201,14cyclictest776618-21taskset11:45:193
37301799198,7cyclictest7709072sleep311:42:113
37301799198,7cyclictest4645882sleep308:17:533
37301799198,7cyclictest4645882sleep308:17:523
37301799192,13cyclictest683418-21taskset10:45:223
373017991917,1cyclictest0-21swapper/311:20:273
373017991916,1cyclictest0-21swapper/311:35:173
373017991916,1cyclictest0-21swapper/307:55:003
37301799191,14cyclictest590735-21taskset09:47:213
37301799191,14cyclictest484069-21turbostat08:35:013
37301799191,14cyclictest390871-21chrt07:20:193
37301799191,13cyclictest636453-21taskset10:15:223
37301799183,11cyclictest528941-21turbostat09:10:013
373017991815,1cyclictest0-21swapper/309:00:173
373017991815,1cyclictest0-21swapper/307:15:013
37301799181,13cyclictest849322-21taskset12:31:553
37301799181,13cyclictest826031-21taskset12:17:433
37301799181,13cyclictest809834-21taskset12:06:043
37301799181,13cyclictest793540-21taskset11:55:263
37301799181,13cyclictest755527-21taskset11:33:083
37301799181,13cyclictest731417-21taskset11:16:373
37301799181,13cyclictest723430-21taskset11:11:113
37301799181,13cyclictest716047-21taskset11:07:353
37301799181,13cyclictest692587-21taskset10:52:353
37301799181,13cyclictest669162-21taskset10:37:553
37301799181,13cyclictest543326-21taskset09:16:173
37301799181,13cyclictest485731-21taskset08:35:153
37301799181,13cyclictest458022-21taskset08:10:333
7549822170,13sleep2754988-21ssh11:31:372
37301799177,7cyclictest653065-21chrt10:26:293
37301799177,7cyclictest5095102sleep308:52:483
37301799172,12cyclictest568640-21taskset09:35:143
373017991714,1cyclictest0-21swapper/309:40:143
37301799171,13cyclictest746750-21taskset11:25:283
37301799171,13cyclictest621597-21taskset10:06:003
37301799171,13cyclictest591985-21taskset09:50:093
37301799171,13cyclictest550403-21taskset09:20:253
37301799171,13cyclictest535227-21taskset09:10:393
37301799171,13cyclictest413400-21taskset07:38:073
37301799171,12cyclictest841066-21taskset12:25:453
37301799171,12cyclictest817501-21taskset12:10:463
37301799171,12cyclictest558796-21taskset09:25:433
37301799171,12cyclictest471566-21taskset08:25:093
37301799171,12cyclictest439146-21turbostat08:00:003
37301799171,12cyclictest420303-21chrt07:45:133
373017991613,1cyclictest0-21swapper/307:30:163
37301799161,12cyclictest565650-21taskset09:30:203
37301799161,12cyclictest502977-21taskset08:45:293
37301799161,12cyclictest451678-21taskset08:05:533
37301799161,12cyclictest445230-21taskset08:00:473
37301799161,12cyclictest400377-21taskset07:25:523
3726382160,3sleep30-21swapper/307:07:123
5465052156,3sleep2546466-21kthreadcore09:20:172
7881832141,9sleep0788386-21/usr/sbin/munin11:55:150
7645142147,2sleep2171rcu_preempt11:40:152
4536962140,7sleep0455319-21ps08:10:160
3881302141,10sleep1387864-21sendmail-msp07:20:131
6225462130,4sleep1622552-21ssh10:08:441
5450112131,3sleep0545033-21apt-get09:20:120
4961302131,9sleep0496237-21/usr/sbin/munin08:40:260
4190642131,9sleep1413610-21sendmail-msp07:40:211
7185372120,9sleep0719462-21cat11:10:180
7154012120,9sleep2715405-21ssh11:05:512
6225392120,9sleep0622545-21ssh10:08:430
5896442120,8sleep1584169-21/usr/sbin/munin09:45:261
5894722120,8sleep2589524-21ssh09:45:232
5222152121,8sleep2516104-21sendmail-msp09:00:572
4776702121,8sleep0477725-21908:30:010
4637142120,2sleep1463802-21ntpq08:15:221
4637142120,2sleep1463802-21ntpq08:15:211
8350742110,8sleep1835232-21df12:25:131
7820472113,4sleep0783659-21cut11:50:190
7108832110,7sleep1712229-21kthreadcore11:05:181
7027992110,2sleep2421rcuc/211:00:162
6300392110,8sleep2630043-21ssh10:13:032
6008222110,8sleep1601642-21kthreadcore09:55:161
5762922111,6sleep0576007-21sendmail-msp09:40:130
5689262111,3sleep1569867-21/usr/sbin/munin09:35:161
4586402111,5sleep0222-21plymouthd08:15:130
4586402111,5sleep0222-21plymouthd08:15:120
4263872110,8sleep2426505-21cut07:50:022
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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