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2025-12-23 - 15:21
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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 Tue Dec 23, 2025 00:43:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
302082821010,2sleep1321rcuc/121:50:261
2805350993431,1cyclictest0-21swapper/322:25:013
2805350992723,1cyclictest0-21swapper/319:20:013
2805350992320,1cyclictest0-21swapper/320:40:003
280535099221,15cyclictest2852868-21taskset19:45:003
280535099211,16cyclictest3104338-21taskset22:55:203
280535099211,15cyclictest3182659-21sleep00:00:013
280535099208,1cyclictest0-21swapper/323:35:163
280535099207,6cyclictest30144402sleep321:45:373
2805350992017,1cyclictest0-21swapper/321:12:583
2805350992017,1cyclictest0-21swapper/319:30:013
280535099200,15cyclictest3208341-21taskset00:19:563
30534232191,9sleep13053426-21cron22:20:001
280535099198,1cyclictest0-21swapper/323:00:163
2805350991915,1cyclictest0-21swapper/323:05:203
280535099191,14cyclictest2811655-21taskset19:14:513
280535099191,13cyclictest3176198-21turbostat23:55:003
2805350991911,0cyclictest0-21swapper/320:53:163
2805350991910,1cyclictest0-21swapper/319:32:013
2805350991910,0cyclictest0-21swapper/322:30:003
280535099181,13cyclictest3086140-21sleep22:45:003
280535099181,13cyclictest2995174-21turbostat21:35:003
280535099181,13cyclictest2969854-21chrt21:15:143
280535099181,13cyclictest2962997-21turbostat21:10:013
280535099181,12cyclictest2982298-21taskset21:24:553
280535099181,12cyclictest2846310-21taskset19:39:563
2805350991810,0cyclictest0-21swapper/300:24:383
280535099180,13cyclictest2904542-21taskset20:24:573
2805350991714,1cyclictest0-21swapper/322:05:163
2805350991714,1cyclictest0-21swapper/320:55:183
2805350991714,1cyclictest0-21swapper/319:57:093
2805350991713,2cyclictest0-21swapper/323:43:363
2805350991712,3cyclictest0-21swapper/322:45:183
280535099171,12cyclictest3097685-21taskset22:50:193
280535099171,12cyclictest3021258-21sleep21:55:003
280535099170,13cyclictest2885765-21taskset20:10:183
280535099170,12cyclictest2995401-21taskset21:35:023
280535099170,12cyclictest2995401-21taskset21:35:013
280535099168,0cyclictest0-21swapper/320:30:433
280535099165,6cyclictest28846742sleep320:06:053
2805350991613,1cyclictest0-21swapper/323:45:183
2805350991613,1cyclictest0-21swapper/323:45:173
2805350991613,1cyclictest0-21swapper/323:30:193
2805350991613,1cyclictest0-21swapper/322:00:173
2805350991612,2cyclictest0-21swapper/300:27:253
280535099161,12cyclictest3234178-21taskset00:37:593
280535099161,12cyclictest3227494-21taskset00:33:033
280535099161,12cyclictest3073162-21taskset22:34:333
280535099161,12cyclictest3001919-21taskset21:40:103
280535099161,12cyclictest2910677-21taskset20:26:123
280535099161,11cyclictest3126840-21taskset23:15:203
280535099161,11cyclictest3053084-21chrt22:15:403
280535099161,11cyclictest2982564-21taskset21:25:123
280535099161,11cyclictest2930198-21taskset20:40:273
280535099160,13cyclictest3195291-21chrt00:07:423
280535099160,13cyclictest3046683-21chrt22:11:353
280535099160,13cyclictest2864778-21chrt19:50:213
280535099157,6cyclictest30734522sleep322:35:093
2805350991513,1cyclictest0-21swapper/321:00:173
2805350991512,1cyclictest0-21swapper/323:25:133
2805350991512,1cyclictest0-21swapper/319:20:143
280535099151,11cyclictest3118500-21taskset23:10:103
280535099151,11cyclictest2897708-21taskset20:18:353
280535099150,12cyclictest3188902-21taskset00:02:523
280535099150,12cyclictest3137458-21chrt23:23:053
280535099150,12cyclictest3027375-21chrt21:57:023
280535099150,12cyclictest2930847-21taskset20:45:123
280535099150,12cyclictest2872308-21chrt20:00:043
280535099150,11cyclictest3195727-21taskset00:10:093
280535099150,11cyclictest2858890-21taskset19:46:103
31172732140,11sleep23117382-21ntpq23:05:222
307598140,9rtkit-daemon2955742-21uname21:00:212
29426532140,9sleep22942762-21find20:50:242
28656142140,11sleep02865636-21/usr/sbin/munin19:55:010
30022872131,9sleep23001882-21/usr/sbin/munin21:40:142
31644892120,1sleep13165343-21cut23:45:171
31644892120,1sleep13165343-21cut23:45:161
31185032122,5sleep13118536-21apt-get23:10:131
30804802123,6sleep23081383-21kthreadcore22:40:172
307598120,8rtkit-daemon299-21systemd-journal23:27:442
307598120,7rtkit-daemon2975861-21cron21:20:012
28051152120,2sleep30-21swapper/319:09:073
31249762111,7sleep13125009-21apt-get23:15:151
307598110,7rtkit-daemon2855969-21cut19:45:162
307598110,3rtkit-daemon719-21lldpd19:26:312
29783152110,8sleep12980328-21cut21:20:181
29180712114,5sleep00-21swapper/020:35:170
28594502111,5sleep12859483-21apt-get19:50:131
307598100,6rtkit-daemon719-21lldpd22:24:162
307598100,6rtkit-daemon714-21snmpd21:06:182
307598100,6rtkit-daemon3256-21sendmail-mta21:54:152
307598100,6rtkit-daemon3256-21sendmail-mta21:21:302
307598100,6rtkit-daemon2918147-21irqcore20:35:162
307598100,5rtkit-daemon217-21plymouthd19:16:082
307598100,4rtkit-daemon217-21plymouthd00:01:052
307598100,3rtkit-daemon714-21snmpd23:50:402
29590702100,7sleep02961098-21kthreadcore21:05:170
28051852101,5sleep00-21swapper/019:10:010
3211404290,6sleep23213478-21kthreadcore00:20:202
3197509290,7sleep23199482-21cut00:10:172
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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