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2025-11-24 - 13:44
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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 Mon Nov 24, 2025 00:43:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2512518993026,1cyclictest0-21swapper/321:30:013
2512518992219,1cyclictest0-21swapper/323:45:193
2512518992217,2cyclictest2679762-21sleep21:20:003
27499162210,10sleep02749924-21ssh22:00:370
2512518992017,1cyclictest0-21swapper/321:55:253
251251899201,16cyclictest2564783-21turbostat19:54:553
251251899201,14cyclictest2896147-21chrt23:35:003
251251899199,6cyclictest28795262sleep323:23:513
2512518991916,1cyclictest0-21swapper/319:35:003
2512518991916,1cyclictest0-21swapper/300:40:003
2512518991915,1cyclictest0-21swapper/322:55:013
2512518991915,1cyclictest0-21swapper/319:15:003
251251899191,14cyclictest2586040-21taskset20:05:173
251251899191,13cyclictest2872056-21turbostat23:20:003
2512518991815,1cyclictest0-21swapper/321:00:003
2512518991815,1cyclictest0-21swapper/300:05:203
251251899181,13cyclictest2925471-21taskset23:50:233
251251899181,13cyclictest2539749-21turbostat19:30:013
2512518991715,1cyclictest0-21swapper/320:20:193
2512518991714,1cyclictest0-21swapper/323:25:153
2512518991714,1cyclictest0-21swapper/322:45:013
2512518991714,1cyclictest0-21swapper/320:15:143
251251899171,13cyclictest2656871-21chrt21:00:233
251251899171,12cyclictest2942804-21chrt00:02:503
251251899171,12cyclictest2824210-21taskset22:49:553
251251899171,12cyclictest2791985-21taskset22:29:563
251251899171,12cyclictest2776301-21taskset22:20:153
251251899171,12cyclictest2710113-21chrt21:35:453
251251899171,12cyclictest2663890-21sleep21:14:543
251251899171,12cyclictest2589781-21chrt20:10:113
251251899171,12cyclictest2546493-21taskset19:35:123
2512518991710,4cyclictest2583386-21turbostat20:05:013
251251899170,13cyclictest2744078-21chrt22:00:023
251251899168,5cyclictest2532926-21taskset19:20:293
251251899167,6cyclictest29893152sleep300:30:283
251251899167,6cyclictest27661462sleep322:11:133
2512518991613,1cyclictest0-21swapper/323:12:533
2512518991613,1cyclictest0-21swapper/320:54:443
251251899161,12cyclictest2975552-21taskset00:25:013
251251899161,12cyclictest2972905-21taskset00:20:213
251251899161,12cyclictest2965555-21taskset00:15:393
251251899161,12cyclictest2958068-21chrt00:11:523
251251899161,12cyclictest2935644-21taskset23:59:483
251251899161,12cyclictest2910698-21chrt23:42:173
251251899161,12cyclictest2903980-21turbostat23:40:003
251251899161,12cyclictest2848899-21taskset23:05:153
251251899161,12cyclictest2839371-21taskset22:58:013
251251899161,12cyclictest2798333-21taskset22:31:013
251251899161,12cyclictest2773320-21taskset22:15:213
251251899161,12cyclictest2728186-21taskset21:50:093
251251899161,12cyclictest2728186-21taskset21:50:083
251251899161,12cyclictest2686651-21taskset21:22:353
251251899161,12cyclictest2663510-21taskset21:05:293
251251899161,12cyclictest2552650-21taskset19:40:123
251251899161,12cyclictest2526897-21taskset19:18:213
251251899161,11cyclictest2758205-21taskset22:06:203
251251899161,11cyclictest2608381-21taskset20:25:123
251251899160,13cyclictest2620199-21chrt20:31:063
251251899160,13cyclictest2571474-21chrt19:55:153
147598160,7rtkit-daemon2758356-21ssh22:06:380
27238912150,4sleep12725159-21memory21:45:181
2512518991512,1cyclictest0-21swapper/319:45:223
251251899151,12cyclictest2807102-21chrt22:37:173
251251899151,11cyclictest2845492-21taskset23:00:173
251251899151,11cyclictest2720211-21chrt21:45:113
251251899151,11cyclictest2718173-21taskset21:41:033
251251899151,11cyclictest2702198-21taskset21:31:093
251251899151,11cyclictest2638724-21taskset20:45:293
251251899151,11cyclictest2632575-21taskset20:40:513
269681821410,2sleep10-21swapper/121:30:161
251251899140,10cyclictest2620759-21taskset20:35:063
26196072131,9sleep02619665-21ntp_states20:30:190
147598130,9rtkit-daemon2679494-21ssh21:19:290
147598130,3rtkit-daemon2768118-21apt-get22:15:120
28942242120,4sleep02894232-21ssh23:30:580
28653102120,9sleep12866247-21grep23:15:161
26397122120,8sleep12639332-21/usr/sbin/munin20:50:161
26142952121,3sleep12614341-21munin-run20:30:011
147598120,6rtkit-daemon730-21ntpd00:34:552
29832662110,9sleep02983283-21latency_hist00:30:010
29191192111,3sleep22919126-21sh23:48:142
28315922110,8sleep12831600-21ssh22:53:351
27428592111,8sleep22742865-21ssh21:57:552
25725322111,7sleep12573937-21cat19:55:181
25650202110,8sleep02565054-21apt-get19:50:130
25508252110,1sleep10-21swapper/119:35:171
147598110,7rtkit-daemon720-21snmpd20:23:140
147598110,7rtkit-daemon2596677-21cut20:15:180
147598110,6rtkit-daemon476-21wpa_supplicant21:35:122
147598110,2rtkit-daemon214-21plymouthd23:24:002
29648122100,7sleep22964915-21ntpq00:15:232
29450712101,2sleep00-21swapper/000:05:200
28865472104,1sleep0171rcu_preempt23:26:360
27910532100,6sleep12791061-21ssh22:27:421
27193052100,3sleep12719313-21ssh21:43:431
27042012101,4sleep12704238-21apt-get21:35:121
26936902100,7sleep12693698-21ssh21:25:311
25408632102,5sleep12541823-21kthreadcore19:30:181
25273042101,6sleep22527337-21apt-get19:20:122
25127072101,6sleep12512740-21apt-get19:10:141
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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