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2026-05-20 - 23:44
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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 20, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4109435992320,1cyclictest0-21swapper/307:55:003
410943599227,5cyclictest126461-21taskset09:44:563
4109435992219,1cyclictest0-21swapper/312:20:253
4109435992219,1cyclictest0-21swapper/310:45:143
4109435992219,1cyclictest0-21swapper/309:30:173
4109435992119,1cyclictest0-21swapper/311:40:013
4109435992118,1cyclictest0-21swapper/310:40:223
4109435992118,1cyclictest0-21swapper/308:50:153
41835342200,9sleep244-21ksoftirqd/208:05:162
4109435992018,1cyclictest0-21swapper/312:30:243
4109435992017,1cyclictest0-21swapper/310:05:213
4109435992017,1cyclictest0-21swapper/309:10:173
410943599201,15cyclictest204329-21taskset10:32:193
410943599201,14cyclictest14049-21chrt08:25:143
410943599201,14cyclictest117710-21taskset09:37:383
410943599199,7cyclictest2844552sleep311:25:123
410943599193,5cyclictest4182217-21taskset08:05:013
4109435991917,1cyclictest0-21swapper/312:00:143
4109435991916,1cyclictest0-21swapper/309:28:033
4109435991916,1cyclictest0-21swapper/307:35:213
4109435991913,3cyclictest4130741-21sleep07:25:003
410943599191,14cyclictest360614-21taskset12:10:233
410943599191,14cyclictest348839-21taskset12:05:163
410943599191,14cyclictest267990-21taskset11:14:173
410943599191,14cyclictest213111-21taskset10:39:573
410943599191,13cyclictest188702-21taskset10:22:413
1782322190,2sleep20-21swapper/210:15:182
410943599181,9cyclictest4175525-21taskset07:59:563
4109435991816,1cyclictest0-21swapper/312:25:173
4109435991815,1cyclictest0-21swapper/312:15:163
4109435991815,1cyclictest0-21swapper/311:00:213
4109435991815,1cyclictest0-21swapper/309:55:233
4109435991815,1cyclictest0-21swapper/308:35:213
4109435991815,1cyclictest0-21swapper/308:20:053
4109435991815,1cyclictest0-21swapper/308:10:203
4109435991815,1cyclictest0-21swapper/307:40:153
410943599181,14cyclictest151282-21chrt10:00:163
410943599181,13cyclictest93967-21taskset09:22:073
410943599181,13cyclictest85700-21taskset09:16:103
410943599181,13cyclictest4162421-21taskset07:45:493
410943599181,13cyclictest4143354-21taskset07:32:463
410943599181,13cyclictest39604-21taskset08:45:063
410943599181,13cyclictest33220-21chrt08:40:093
410943599181,13cyclictest308483-21taskset11:40:153
410943599181,13cyclictest293755-21taskset11:30:163
410943599181,13cyclictest275830-21taskset11:18:583
410943599181,13cyclictest243550-21taskset10:57:023
410943599181,13cyclictest243550-21taskset10:57:013
410943599181,13cyclictest229236-21taskset10:50:113
410943599181,13cyclictest172369-21taskset10:11:153
410943599181,13cyclictest133801-21taskset09:48:333
410943599178,6cyclictest584382sleep308:59:423
4109435991714,1cyclictest0-21swapper/311:50:163
4109435991714,1cyclictest0-21swapper/310:17:003
4109435991714,1cyclictest0-21swapper/307:15:203
410943599171,13cyclictest71001-21taskset09:07:043
410943599171,13cyclictest401476-21taskset12:37:483
410943599171,13cyclictest401476-21taskset12:37:483
410943599171,13cyclictest276531-21taskset11:20:103
410943599171,13cyclictest26286-21taskset08:31:593
410943599171,13cyclictest260173-21taskset11:09:283
410943599171,13cyclictest260173-21taskset11:09:273
410943599171,12cyclictest64506-21chrt09:00:383
410943599171,12cyclictest4175816-21taskset08:00:093
410943599171,12cyclictest4136099-21taskset07:25:213
410943599171,12cyclictest4109331-21sleep07:14:553
410943599171,12cyclictest315950-21taskset11:45:043
410943599171,12cyclictest141201-21taskset09:52:143
410943599171,12cyclictest1157-21taskset08:15:033
2770572171,11sleep1276542-21/usr/sbin/munin11:20:181
19216021713,1sleep30-21swapper/310:25:183
410943599160,13cyclictest338050-21chrt11:56:543
1504442151,5sleep2150449-21apt-get10:00:122
1242262151,10sleep1124269-21ntpq09:40:231
1223872150,5sleep21553714-21kworker/2:0+events09:40:192
41886232141,3sleep00-21swapper/008:10:120
41745942131,9sleep24174634-21ntpq07:55:232
3534852131,4sleep1353493-21ssh12:05:561
3530112131,9sleep0353284-21awk12:05:260
3471182131,9sleep2347152-21munin-run12:05:012
3135472131,8sleep0313655-21/usr/sbin/munin11:40:250
861442120,9sleep286148-21ssh09:17:252
2352422120,9sleep1235248-21ssh10:50:541
1017942128,2sleep057423-21kworker/u16:0+nfsiod09:27:060
41920012110,7sleep14193647-21cat08:10:211
41883472111,7sleep04188379-21idleruntime-cro08:10:000
41758202112,5sleep14175855-21apt-get08:00:111
41703592115,3sleep14171318-21grep07:55:181
41438382110,8sleep04143978-21grep07:35:120
41435292110,7sleep04143668-21latency_hist07:35:010
41313792111,7sleep24131468-21irqcore07:25:162
41236672110,3sleep04123884-21users07:15:280
3862402111,2sleep20-21swapper/212:29:142
2919862113,4sleep2222-21plymouthd11:30:002
2607492110,8sleep0260841-21grep11:10:150
1742732111,7sleep1174385-21perl10:15:141
1487952111,7sleep2148801-21ssh09:56:312
787622100,3sleep178770-21ssh09:13:561
704672100,7sleep165118-21/usr/sbin/munin09:05:261
447882101,6sleep144826-21ntpq08:45:221
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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