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2025-11-09 - 04:00
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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
Characteristics of the 100 highest latencies:
System rackcslot6.osadl.org (updated Sun Nov 09, 2025 00:45:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
26266649911113,57cyclictest937-21lldpd20:43:124
267342421020,0sleep10-21swapper/120:20:231
29582352920,1sleep70-21swapper/700:33:517
2626664999212,47cyclictest1134-21snmpd22:18:124
2626640999212,49cyclictest1134-21snmpd19:58:121
29417582910,0sleep70-21swapper/700:20:147
2626664999117,41cyclictest0-21swapper/421:08:124
2626664999012,47cyclictest1134-21snmpd22:03:124
2626664998916,39cyclictest0-21swapper/419:48:134
2626664998916,39cyclictest0-21swapper/419:48:124
2626664998816,37cyclictest0-21swapper/400:23:124
2626664998615,37cyclictest0-21swapper/420:23:134
26890782850,0sleep10-21swapper/120:45:241
2626640998416,36cyclictest0-21swapper/123:13:121
28434792830,1sleep5481rcuc/523:00:335
2626678998317,35cyclictest0-21swapper/622:38:126
27562832820,0sleep60-21swapper/621:51:126
29578932800,1sleep228-21ksoftirqd/200:33:222
27018012800,0sleep70-21swapper/721:05:247
26755132770,0sleep50-21swapper/520:25:175
26427092770,0sleep30-21swapper/319:30:283
27769502760,0sleep60-21swapper/622:08:516
29331672730,0sleep70-21swapper/700:13:407
28003312720,0sleep50-21swapper/522:26:285
27975112710,0sleep40-21swapper/422:25:164
27196912710,0sleep50-21swapper/521:23:005
262666499650,33cyclictest1134-21snmpd23:58:124
262666499650,33cyclictest1134-21snmpd23:58:124
262667899560,36cyclictest0-21swapper/620:53:126
27073442530,0sleep60-21swapper/621:13:246
27073442530,0sleep60-21swapper/621:13:236
216999520,48rtkit-daemon0-21swapper/119:06:041
262639524643,2sleep40-21swapper/419:09:064
2626657994115,24cyclictest937-21lldpd21:10:583
2626657994115,24cyclictest937-21lldpd21:10:583
2626664993814,24cyclictest1134-21snmpd21:38:594
28000282360,1sleep3937-21lldpd22:26:033
262643423632,2sleep50-21swapper/519:09:405
2626633993511,24cyclictest0-21swapper/021:12:590
2626633993511,24cyclictest0-21swapper/021:12:580
262635223531,2sleep60-21swapper/619:08:296
262628923528,3sleep30-21swapper/319:07:373
262668699348,24cyclictest0-21swapper/721:30:597
2626686993410,24cyclictest0-21swapper/719:42:587
2626633993410,24cyclictest0-21swapper/019:48:580
2626633993410,24cyclictest0-21swapper/019:48:580
2626633993410,24cyclictest0-21swapper/000:22:580
262639823429,2sleep70-21swapper/719:09:097
262667199339,24cyclictest0-21swapper/522:37:585
262663399339,24cyclictest0-21swapper/019:55:580
2626633993310,0cyclictest0-21swapper/019:31:580
262668699329,0cyclictest0-21swapper/723:59:587
262668699329,0cyclictest0-21swapper/723:59:587
262641123228,3sleep20-21swapper/219:09:202
262667199317,24cyclictest0-21swapper/522:42:595
262664099317,24cyclictest0-21swapper/122:08:581
262623723129,1sleep00-21swapper/019:06:540
262668699306,24cyclictest0-21swapper/719:46:597
262668699306,24cyclictest0-21swapper/719:46:587
262664099309,21cyclictest0-21swapper/120:33:581
262667199295,24cyclictest0-21swapper/519:12:585
262665799295,24cyclictest0-21swapper/322:05:593
27420212280,0sleep10-21swapper/121:40:181
27127182280,0sleep30-21swapper/321:17:063
2626664992812,15cyclictest1134-21snmpd22:33:124
2626664992812,15cyclictest1134-21snmpd22:33:124
262663399284,24cyclictest0-21swapper/022:01:580
28083862270,1sleep2937-21lldpd22:34:032
28083862270,1sleep2937-21lldpd22:34:022
27427172260,1sleep7621rcuc/721:40:247
27331212260,0sleep60-21swapper/621:34:066
262667199262,24cyclictest0-21swapper/520:20:585
2626671992613,13cyclictest0-21swapper/523:38:125
2626671992612,14cyclictest0-21swapper/519:33:125
262664699261,0cyclictest0-21swapper/200:12:582
262664099267,16cyclictest0-21swapper/120:58:121
29386952250,1sleep6551rcuc/600:17:416
26339962250,0sleep10-21swapper/119:20:001
262667199258,15cyclictest1134-21snmpd20:33:125
262666499251,24cyclictest0-21swapper/423:09:584
2626657992524,1cyclictest0-21swapper/323:48:123
2626657992524,1cyclictest0-21swapper/321:43:123
262665799251,24cyclictest0-21swapper/300:34:583
2626646992524,1cyclictest2107-21gnome-shell20:26:582
262664099259,15cyclictest1134-21snmpd00:38:121
262664099251,24cyclictest0-21swapper/123:29:581
262664099250,25cyclictest0-21swapper/121:13:591
262664099250,25cyclictest0-21swapper/121:13:581
26748832240,0sleep30-21swapper/320:25:143
262668699248,15cyclictest0-21swapper/721:23:127
262667199248,14cyclictest49-21ksoftirqd/500:13:125
262667199246,15cyclictest0-21swapper/521:48:125
2626671992423,1cyclictest2107-21gnome-shell22:22:585
262667199240,1cyclictest0-21swapper/500:23:585
262664099240,24cyclictest0-21swapper/122:25:581
2626633992423,1cyclictest2107-21gnome-shell20:45:580
262663399240,24cyclictest0-21swapper/020:21:590
27660842230,0sleep10-21swapper/122:00:141
27250332230,0sleep763-21ksoftirqd/721:26:387
2626686992322,1cyclictest2107-21gnome-shell23:40:587
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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