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2026-03-12 - 23:15
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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 376 highest latencies:
System rackcslot2.osadl.org (updated Thu Mar 12, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
938027462,7sleep00-21swapper/007:09:080
904427061,5sleep10-21swapper/107:05:381
9586993110,0cyclictest0-21swapper/111:30:141
9586992926,2cyclictest32757-21ssh12:18:271
9585992910,2cyclictest0-21swapper/010:20:430
958599281,24cyclictest0-21swapper/010:29:380
9585992810,12cyclictest0-21swapper/011:42:480
9586992720,5cyclictest636-21nscd10:14:411
958699262,2cyclictest27706-21ssh10:42:121
9586992619,5cyclictest5962-21ssh10:56:321
9585992625,1cyclictest0-21swapper/007:40:330
9586992510,1cyclictest0-21swapper/111:51:091
9585992510,7cyclictest19426-21apache208:44:390
9585992510,3cyclictest0-21swapper/009:50:580
9585992510,2cyclictest0-21swapper/009:09:360
958699249,14cyclictest0-21swapper/109:33:251
9586992422,1cyclictest0-21swapper/110:46:461
9586992416,2cyclictest0-21swapper/110:08:021
9585992422,1cyclictest27549-21apache_accesses09:14:340
9586992322,1cyclictest19400-21apache207:58:451
9586992310,8cyclictest0-21swapper/108:54:371
958699230,12cyclictest19401-21apache210:49:361
9585992322,1cyclictest802-21apache211:29:250
9585992317,5cyclictest19426-21apache209:26:080
9585992310,5cyclictest0-21swapper/008:59:370
9586992221,1cyclictest19400-21apache209:55:591
9586992210,7cyclictest0-21swapper/112:33:121
9586992210,7cyclictest0-21swapper/109:13:571
958699220,10cyclictest0-21swapper/108:59:411
9585992219,2cyclictest19400-21apache211:03:280
958599221,7cyclictest3657-21kworker/0:011:04:400
9585992215,1cyclictest9583-21cyclictest10:24:380
9585992212,1cyclictest25321-21kworker/u4:111:24:360
958599221,18cyclictest16835-21rm11:55:300
958599221,0cyclictest6742-21if_eth209:29:380
958699217,8cyclictest18665-21munin-run11:59:241
958699214,8cyclictest0-21swapper/107:29:341
958699214,12cyclictest11644-21/usr/sbin/munin11:04:401
9586992118,1cyclictest0-21swapper/108:53:411
9586992112,5cyclictest0-21swapper/109:47:451
9586992110,8cyclictest0-21swapper/109:44:041
9586992110,8cyclictest0-21swapper/107:44:401
9586992110,7cyclictest0-21swapper/111:39:361
9586992110,7cyclictest0-21swapper/110:12:421
9586992110,4cyclictest0-21swapper/112:07:491
9586992110,2cyclictest0-21swapper/112:02:511
958699210,3cyclictest0-21swapper/110:26:531
958599219,9cyclictest9894-21ssh12:30:280
958599213,11cyclictest0-21swapper/012:19:410
9585992118,0cyclictest13715-21sh12:35:500
958599211,19cyclictest25020-21kworker/u4:110:52:310
9585992110,7cyclictest0-21swapper/010:06:570
9585992110,5cyclictest0-21swapper/011:09:350
9585992110,4cyclictest0-21swapper/012:01:190
9585992110,3cyclictest0-21swapper/011:14:390
958699205,13cyclictest0-21swapper/108:09:421
958699205,10cyclictest0-21swapper/109:29:251
9586992020,0cyclictest0-21swapper/111:35:301
9586992018,1cyclictest25970-21runrttasks11:24:371
9586992018,1cyclictest19426-21apache212:22:551
9586992014,5cyclictest0-21swapper/109:19:271
9586992011,2cyclictest0-21swapper/110:03:111
9586992010,9cyclictest0-21swapper/110:38:361
9586992010,7cyclictest0-21swapper/107:34:251
9586992010,4cyclictest0-21swapper/110:19:351
9586992010,3cyclictest0-21swapper/112:34:411
958599204,5cyclictest17529-21/usr/sbin/munin09:44:370
958599202,7cyclictest0-21swapper/010:54:450
9585992015,3cyclictest19426-21apache211:50:360
9585992014,5cyclictest7-21ksoftirqd/011:39:240
9585992010,7cyclictest0-21swapper/007:24:360
9585992010,6cyclictest0-21swapper/010:43:080
9585992010,5cyclictest0-21swapper/007:29:370
9585992010,5cyclictest0-21swapper/007:19:370
9585992010,4cyclictest0-21swapper/007:15:020
9585992010,3cyclictest0-21swapper/008:24:450
9585992010,2cyclictest0-21swapper/012:04:290
958599200,1cyclictest0-21swapper/012:09:310
958699196,8cyclictest0-21swapper/107:24:401
958699196,5cyclictest0-21swapper/107:14:371
958699195,10cyclictest0-21swapper/109:04:351
958699193,6cyclictest8072-21idleruntime-cro08:29:241
9586991919,0cyclictest19400-21apache211:47:151
9586991919,0cyclictest0-21swapper/111:19:411
9586991910,7cyclictest0-21swapper/111:13:501
9586991910,5cyclictest0-21swapper/108:15:091
9586991910,5cyclictest0-21swapper/108:04:371
9586991910,5cyclictest0-21swapper/107:19:351
958599192,10cyclictest0-21swapper/007:59:380
9585991915,2cyclictest19400-21apache208:40:560
9585991911,5cyclictest0-21swapper/008:14:360
9585991910,5cyclictest0-21swapper/010:44:320
9585991910,5cyclictest0-21swapper/010:09:320
9585991910,3cyclictest0-21swapper/007:44:390
2691321910,0sleep00-21swapper/007:53:350
2684821910,0sleep00-21swapper/009:56:480
2158421910,1sleep10-21swapper/111:19:001
958699184,10cyclictest30176-21/usr/sbin/munin07:59:431
958699183,10cyclictest0-21swapper/107:49:351
9586991811,4cyclictest0-21swapper/110:59:341
9586991810,5cyclictest0-21swapper/110:30:501
9586991810,2cyclictest0-21swapper/112:12:191
9586991810,2cyclictest0-21swapper/109:15:061
9586991810,1cyclictest0-21swapper/112:26:201
958599183,10cyclictest0-21swapper/008:19:410
958599181,9cyclictest0-21swapper/012:24:360
9585991815,1cyclictest81ktimersoftd/009:06:440
9585991814,3cyclictest0-21swapper/009:23:060
9585991810,2cyclictest0-21swapper/008:54:360
9585991810,2cyclictest0-21swapper/007:34:250
1747721810,0sleep00-21swapper/008:52:460
958699173,7cyclictest0-21swapper/109:34:351
958699173,10cyclictest0-21swapper/109:49:411
9586991710,4cyclictest0-21swapper/108:34:421
9586991710,4cyclictest0-21swapper/108:29:331
958599178,4cyclictest0-21swapper/010:14:450
958599174,8cyclictest0-21swapper/011:44:350
958599173,9cyclictest0-21swapper/008:29:330
958599173,7cyclictest0-21swapper/008:34:400
9585991715,1cyclictest0-21swapper/009:41:050
9585991713,0cyclictest100250irq/107-eth1-rx10:35:530
9585991712,3cyclictest23208-21ls11:19:440
9585991712,3cyclictest100150irq/106-eth1-rx09:35:070
9585991711,1cyclictest0-21swapper/009:59:390
9585991710,4cyclictest22409-21kworker/0:108:11:370
9585991710,4cyclictest0-21swapper/008:05:010
2850921710,1sleep00-21swapper/007:55:170
958699165,6cyclictest0-21swapper/108:44:371
958699163,8cyclictest0-21swapper/107:39:351
958699162,6cyclictest0-21swapper/108:44:191
9586991611,1cyclictest0-21swapper/107:09:401
9586991610,4cyclictest0-21swapper/108:22:181
9585991610,3cyclictest0-21swapper/012:14:350
9585991610,3cyclictest0-21swapper/007:09:400
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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