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2026-03-28 - 19:18
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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 Sat Mar 28, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
138562621160,2sleep0221rcuc/012:00:160
960754993532,1cyclictest0-21swapper/311:40:003
960754993128,1cyclictest0-21swapper/312:40:003
960754993120,8cyclictest1318613-21turbostat11:20:013
12842812260,2sleep10-21swapper/110:55:191
960754992421,1cyclictest0-21swapper/311:40:253
960754992320,1cyclictest0-21swapper/310:20:013
960754992320,1cyclictest0-21swapper/310:10:013
960754992320,1cyclictest0-21swapper/309:10:003
960754992219,1cyclictest0-21swapper/311:50:113
960754992219,1cyclictest0-21swapper/310:50:123
960754992219,1cyclictest0-21swapper/308:30:283
960754992219,1cyclictest0-21swapper/308:25:163
960754992211,7cyclictest13334632sleep311:28:023
96075499221,15cyclictest1171759-21taskset09:45:003
960754992017,1cyclictest0-21swapper/309:30:163
960754992017,1cyclictest0-21swapper/309:25:013
96075499201,14cyclictest1271082-21taskset10:46:473
96075499201,14cyclictest1194746-21taskset09:59:563
96075499201,14cyclictest1110764-21taskset09:00:553
96075499201,13cyclictest1092011-21taskset08:50:003
13035612201,8sleep01303678-21diskstats11:10:140
96075499192,13cyclictest1020811-21taskset07:53:403
960754991916,1cyclictest0-21swapper/310:30:173
960754991916,1cyclictest0-21swapper/309:15:203
96075499191,14cyclictest1403118-21taskset12:13:113
96075499191,14cyclictest1099452-21taskset08:55:173
96075499191,14cyclictest1033810-21turbostat08:05:003
96075499191,13cyclictest1326355-21taskset11:24:553
96075499191,13cyclictest1303508-21chrt11:10:123
96075499191,13cyclictest1218012-21taskset10:14:553
96075499188,7cyclictest12932532sleep311:00:243
96075499188,7cyclictest10853062sleep308:44:363
960754991815,1cyclictest0-21swapper/311:59:183
960754991815,1cyclictest0-21swapper/308:15:013
96075499181,13cyclictest995142-21taskset07:34:313
96075499181,13cyclictest1418187-21taskset12:21:573
96075499181,13cyclictest1387489-21taskset12:02:413
96075499181,13cyclictest1363605-21taskset11:45:403
96075499181,13cyclictest1263316-21taskset10:41:413
96075499181,13cyclictest1146972-21taskset09:25:403
96075499181,13cyclictest1047031-21chrt08:15:133
96075499181,13cyclictest1040114-21taskset08:08:043
96075499181,12cyclictest1280233-21chrt10:55:133
96075499181,12cyclictest1249362-21chrt10:35:133
129998180,2rtkit-daemon222-21plymouthd10:36:112
12416022181,13sleep01241604-21ssh10:30:140
96075499177,7cyclictest9755252sleep307:15:573
96075499177,7cyclictest9755252sleep307:15:563
96075499176,8cyclictest1171599-21sleep09:49:553
960754991714,1cyclictest0-21swapper/311:30:163
960754991714,1cyclictest0-21swapper/310:25:143
960754991714,1cyclictest0-21swapper/310:20:153
960754991714,1cyclictest0-21swapper/308:20:153
96075499171,13cyclictest1425512-21taskset12:25:373
96075499171,13cyclictest1163185-21taskset09:38:073
96075499171,13cyclictest1026987-21taskset07:55:333
96075499171,12cyclictest961105-21taskset07:10:143
96075499171,12cyclictest1432639-21taskset12:30:223
96075499171,12cyclictest1410142-21taskset12:15:553
96075499171,12cyclictest1001887-21taskset07:40:093
96075499170,13cyclictest1186233-21taskset09:52:343
96075499170,13cyclictest1117896-21taskset09:10:133
9602782171,2sleep30-21swapper/307:06:153
10779392170,8sleep21077980-21collect208:35:212
96075499162,10cyclictest1301487-21chrt11:05:283
96075499162,10cyclictest1301487-21chrt11:05:273
960754991613,1cyclictest0-21swapper/312:05:273
96075499161,13cyclictest1092081-21taskset08:50:133
96075499161,12cyclictest988442-21taskset07:25:493
96075499161,12cyclictest982013-21taskset07:21:163
96075499161,12cyclictest1201667-21taskset10:02:243
96075499161,12cyclictest1014239-21taskset07:46:193
96075499161,11cyclictest995445-21taskset07:35:073
96075499160,12cyclictest1078585-21taskset08:35:533
129998150,9rtkit-daemon1194745-21ssh09:59:572
129998150,1rtkit-daemon0-21swapper/108:33:021
10598712152,10sleep01059903-21/usr/sbin/munin08:25:090
14031792141,4sleep11403183-21ssh12:13:211
13737312144,7sleep01374597-21cut11:55:160
12647682140,11sleep00-21swapper/010:45:120
129998130,9rtkit-daemon1008328-21/usr/sbin/munin07:45:241
129998130,3rtkit-daemon703-21mta-sts-daemon11:32:212
129998130,1rtkit-daemon0-21swapper/012:22:420
11207812130,9sleep01122671-21cut09:10:180
13885122120,9sleep21388516-21ssh12:05:042
13179842120,9sleep21317990-21ssh11:18:112
12725032121,8sleep01272587-21grep10:50:140
12012252120,1sleep10-21swapper/110:01:071
10276532122,7sleep21027655-21apt-get08:00:132
14337792110,5sleep20-21swapper/212:32:112
14112852111,6sleep01411291-21ssh12:19:230
13568662110,8sleep11356872-21ssh11:43:401
13425522111,7sleep01342705-21irqcore11:35:160
129998110,7rtkit-daemon1364753-21ssh11:49:092
129998110,7rtkit-daemon1195045-21latency_hist10:00:012
129998110,3rtkit-daemon222-21plymouthd10:06:212
129998110,3rtkit-daemon222-21plymouthd07:57:281
129998110,2rtkit-daemon222-21plymouthd08:22:041
129998110,2rtkit-daemon222-21plymouthd07:05:052
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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