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2026-07-01 - 13:24
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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 Jul 01, 2026 00:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1025834992825,1cyclictest0-21swapper/323:50:193
1025834992725,0cyclictest0-21swapper/322:15:013
1025834992623,1cyclictest0-21swapper/320:30:173
1025834992623,1cyclictest0-21swapper/320:00:143
1025834992522,1cyclictest0-21swapper/322:15:233
1025834992522,1cyclictest0-21swapper/320:40:003
102583499232,15cyclictest1197370-21taskset21:20:013
1025834992320,1cyclictest0-21swapper/300:29:103
102583499231,16cyclictest1066245-21taskset19:39:303
102583499222,15cyclictest1496905-21taskset00:33:103
1025834992219,1cyclictest0-21swapper/323:05:003
1025834992118,1cyclictest0-21swapper/323:20:163
1025834992118,1cyclictest0-21swapper/320:25:143
1025834992118,1cyclictest0-21swapper/320:25:133
1025834992118,1cyclictest0-21swapper/300:00:123
102583499211,15cyclictest1110694-21taskset20:11:263
1025834992017,1cyclictest0-21swapper/323:55:203
1025834992017,1cyclictest0-21swapper/323:45:283
1025834992017,1cyclictest0-21swapper/321:40:003
1025834992017,1cyclictest0-21swapper/321:10:183
1025834992017,1cyclictest0-21swapper/321:00:113
102583499201,15cyclictest1400248-21taskset23:27:123
102583499199,7cyclictest13446972sleep322:50:593
102583499197,8cyclictest10461872sleep319:20:243
102583499194,11cyclictest1306960-21turbostat22:30:003
1025834991916,1cyclictest0-21swapper/321:55:273
1025834991916,1cyclictest0-21swapper/321:55:263
1025834991916,1cyclictest0-21swapper/321:40:133
1025834991916,1cyclictest0-21swapper/300:40:013
1025834991916,1cyclictest0-21swapper/300:20:153
1025834991915,1cyclictest0-21swapper/323:10:153
102583499191,14cyclictest1328350-21taskset22:40:243
102583499191,14cyclictest1162045-21taskset20:52:193
102583499191,14cyclictest1054776-21taskset19:30:173
102583499191,14cyclictest1053499-21taskset19:29:523
102583499191,13cyclictest1189560-21taskset21:15:093
102583499190,13cyclictest1377892-21taskset23:15:013
102583499186,9cyclictest1299223-21taskset22:25:013
1025834991815,1cyclictest0-21swapper/323:40:173
1025834991815,1cyclictest0-21swapper/323:40:173
1025834991815,1cyclictest0-21swapper/322:00:183
1025834991815,1cyclictest0-21swapper/322:00:173
1025834991815,1cyclictest0-21swapper/321:05:223
102583499181,13cyclictest1473359-21taskset00:18:233
102583499181,13cyclictest1464996-21taskset00:11:503
102583499181,13cyclictest1416274-21taskset23:38:063
102583499181,13cyclictest1416274-21taskset23:38:053
102583499181,13cyclictest1352807-21taskset22:56:363
102583499181,13cyclictest1337467-21taskset22:47:463
102583499181,13cyclictest1244185-21turbostat21:50:003
102583499181,13cyclictest1211296-21taskset21:25:513
102583499181,13cyclictest1117127-21taskset20:16:083
102583499181,13cyclictest1104408-21taskset20:07:423
102583499181,13cyclictest1091818-21taskset20:00:003
102583499181,13cyclictest1079403-21taskset19:50:133
102583499181,13cyclictest1078780-21taskset19:45:523
102583499181,13cyclictest1072368-21taskset19:40:513
102583499181,13cyclictest1031835-21taskset19:10:293
13578132170,1sleep20-21swapper/223:00:202
1025834991714,1cyclictest0-21swapper/322:30:143
102583499171,13cyclictest1369728-21taskset23:09:523
102583499171,13cyclictest1274169-21taskset22:06:203
102583499171,12cyclictest1456775-21taskset00:05:483
102583499171,12cyclictest1318889-21taskset22:35:193
102583499171,12cyclictest1244436-21taskset21:50:053
102583499171,12cyclictest1213418-21taskset21:30:153
102583499171,12cyclictest1168408-21taskset20:57:053
102583499171,12cyclictest1149168-21taskset20:41:203
102583499171,12cyclictest1123564-21taskset20:20:523
1025834991614,1cyclictest0-21swapper/323:30:153
1025834991613,1cyclictest0-21swapper/319:15:033
102583499160,12cyclictest1155052-21taskset20:45:253
13832872152,4sleep21383328-21ntpq23:15:252
14971222140,3sleep20-21swapper/200:33:462
13769802130,9sleep11376988-21ssh23:13:111
12639392131,2sleep00-21swapper/022:00:210
12639392131,2sleep00-21swapper/022:00:210
12197592134,6sleep0979-21lldpd21:32:390
11639212131,9sleep01164930-21cut20:55:170
10907802131,9sleep11090868-21ntpq19:55:221
10440672130,9sleep01045932-21cut19:20:200
14978862121,3sleep11497923-21apt-get00:35:151
12836982122,6sleep21283701-21apt-get22:15:102
11976192121,8sleep01197736-21/usr/sbin/munin21:20:160
10601842121,8sleep21060340-21diskstats19:35:132
10196682121,5sleep00-21swapper/019:05:120
14734262110,8sleep11473430-21ssh00:18:351
14002112110,9sleep11400217-21ssh23:27:061
13629432110,4sleep11363762-21cut23:05:181
13303092110,8sleep11330315-21ssh22:44:321
13066302110,8sleep21306638-21ssh22:29:132
12602432110,8sleep11260248-21apt-get22:00:141
12602432110,8sleep11260248-21apt-get22:00:141
12444632110,4sleep21244469-21ssh21:50:132
12366882111,7sleep11236841-21df21:45:141
12366812111,2sleep00-21swapper/021:45:130
11435082111,6sleep21143643-21gltestperf20:40:162
11432962111,2sleep086188-21systemd-journal20:40:020
10526232110,8sleep11052650-21ntp_states19:25:231
10205912110,7sleep11021166-21kthreadcore19:05:171
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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