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2026-05-27 - 08:02
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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 Wed May 27, 2026 00:43:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
111746821230,1sleep10-21swapper/120:55:251
975422993027,1cyclictest0-21swapper/319:40:003
975422992926,1cyclictest0-21swapper/320:10:003
975422992824,1cyclictest0-21swapper/322:35:013
975422992618,5cyclictest1185471-21sleep21:45:003
975422992522,1cyclictest0-21swapper/323:40:213
975422992421,1cyclictest0-21swapper/321:10:173
975422992420,1cyclictest0-21swapper/321:50:223
975422992320,1cyclictest0-21swapper/320:20:013
975422992219,1cyclictest0-21swapper/321:00:003
975422992218,1cyclictest0-21swapper/323:45:243
97542299221,15cyclictest1146740-21taskset21:20:013
975422992118,1cyclictest0-21swapper/321:05:293
975422992118,1cyclictest0-21swapper/319:20:183
975422992118,1cyclictest0-21swapper/300:15:003
975422992114,3cyclictest10217492sleep319:40:263
97542299208,7cyclictest10022112sleep319:25:233
97542299202,14cyclictest1009221-21taskset19:32:123
975422992018,1cyclictest0-21swapper/322:15:013
975422992017,1cyclictest0-21swapper/323:15:233
975422992017,1cyclictest0-21swapper/322:20:013
975422992017,1cyclictest0-21swapper/321:30:003
975422992011,7cyclictest14029912sleep300:05:163
97542299201,14cyclictest1270743-21taskset22:39:553
97542299192,13cyclictest1455388-21taskset00:35:303
975422991916,1cyclictest0-21swapper/323:11:443
975422991916,1cyclictest0-21swapper/323:05:123
975422991916,1cyclictest0-21swapper/322:59:333
975422991916,1cyclictest0-21swapper/320:05:013
975422991916,1cyclictest0-21swapper/300:20:123
97542299191,14cyclictest979731-21taskset19:10:193
97542299191,14cyclictest1439586-21taskset00:25:243
97542299191,14cyclictest1356366-21taskset23:35:133
97542299191,12cyclictest1278771-21taskset22:45:003
97542299188,7cyclictest10288912sleep319:50:133
97542299182,12cyclictest1209066-21taskset22:00:063
97542299182,12cyclictest1191702-21taskset21:45:303
97542299182,12cyclictest1092522-21taskset20:37:473
975422991816,1cyclictest0-21swapper/323:55:343
975422991816,1cyclictest0-21swapper/321:00:043
975422991816,1cyclictest0-21swapper/319:20:003
975422991815,1cyclictest0-21swapper/322:55:003
975422991815,1cyclictest0-21swapper/321:40:003
975422991815,1cyclictest0-21swapper/320:50:003
975422991815,1cyclictest0-21swapper/320:25:243
975422991815,1cyclictest0-21swapper/300:00:203
97542299181,13cyclictest1385543-21taskset23:50:403
97542299181,13cyclictest1348540-21taskset23:30:073
97542299181,13cyclictest1341060-21taskset23:25:153
97542299181,13cyclictest1308984-21taskset23:03:413
97542299181,13cyclictest1247886-21taskset22:25:043
97542299181,13cyclictest1223039-21taskset22:06:153
97542299181,13cyclictest1152932-21taskset21:20:453
97542299181,13cyclictest1060307-21taskset20:11:183
97542299181,13cyclictest1041384-21turbostat20:00:003
97542299181,13cyclictest1024024-21taskset19:45:153
97542299181,12cyclictest1080227-21taskset20:30:133
975422991810,5cyclictest14186052sleep300:15:143
97542299172,12cyclictest1277737-21taskset22:42:443
97542299172,12cyclictest1207796-21taskset21:57:053
97542299172,12cyclictest1105717-21taskset20:50:023
975422991714,1cyclictest0-21swapper/322:25:013
975422991714,1cyclictest0-21swapper/320:40:023
975422991714,1cyclictest0-21swapper/300:30:173
97542299171,12cyclictest1339493-21taskset23:22:013
97542299171,12cyclictest1162478-21taskset21:30:073
11444782171,5sleep21144520-21ntpq21:15:232
97542299161,11cyclictest1069541-21chrt20:20:193
10918072152,10sleep01091845-21ntpq20:35:250
9696102141,3sleep20-21swapper/219:05:182
14392992144,3sleep014-21ksoftirqd/000:25:220
11174282140,4sleep01117467-21open_inodes20:55:250
11996252130,9sleep21199629-21ssh21:51:002
11949562130,9sleep11195914-21cut21:50:201
11940192131,9sleep01194955-21sed21:50:180
9903642121,8sleep2990360-21sendmail-msp19:20:012
14401752120,9sleep11440179-21ssh00:26:311
13539002121,8sleep11353950-21ld23:30:221
13006512121,8sleep11300655-21ssh22:56:551
12865992122,7sleep21286596-21apt-get22:50:142
12542092121,8sleep21254217-21ssh22:26:442
12320422121,8sleep11232056-21cron22:15:001
11870932120,5sleep01188001-21kthreadcore21:45:160
11846062120,9sleep01184612-21ssh21:42:370
10416432120,4sleep286188-21systemd-journal20:00:072
9752552110,2sleep30-21swapper/319:09:573
14504242110,8sleep21451148-21cut00:35:182
14438862114,4sleep01445531-21grep00:30:190
14161732112,6sleep01416281-21cat00:10:260
14103102110,8sleep11410315-21ssh00:09:551
13071822110,8sleep21307279-21ld23:00:202
12746742110,4sleep21276169-21cat22:40:192
12455852110,8sleep21245712-21cut22:20:282
12173452110,1sleep20-21swapper/222:05:142
13563372101,6sleep20-21swapper/223:35:122
13489782101,6sleep21349437-21irqcore23:30:152
13254952101,6sleep1222-21plymouthd23:15:141
13024622100,7sleep11302671-21cut23:00:151
12645932100,7sleep01265510-21grep22:35:170
12493062100,7sleep01249567-21kthreadcore22:25:180
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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