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2026-06-19 - 13:08
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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 rackcslot2.osadl.org (updated Fri Jun 19, 2026 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3056926753,7sleep10-21swapper/119:04:311
3057426655,7sleep00-21swapper/019:04:340
31147993535,0cyclictest0-21swapper/121:20:541
31147993525,6cyclictest0-21swapper/123:21:221
31146993210,21cyclictest0-21swapper/021:10:000
31146993210,1cyclictest0-21swapper/022:03:050
31146992726,0cyclictest0-21swapper/020:23:400
31146992715,11cyclictest0-21swapper/023:58:560
31147992625,0cyclictest0-21swapper/121:24:061
3114699262,7cyclictest0-21swapper/023:35:000
31146992626,0cyclictest0-21swapper/023:17:110
31147992510,15cyclictest0-21swapper/123:59:271
31146992525,0cyclictest81ktimersoftd/023:48:540
31147992410,6cyclictest0-21swapper/123:05:251
31147992410,11cyclictest0-21swapper/121:36:561
31146992422,1cyclictest81ktimersoftd/022:54:210
3114699240,2cyclictest0-21swapper/021:43:330
3114799236,10cyclictest0-21swapper/122:48:501
3114799234,18cyclictest0-21swapper/100:28:361
31147992319,3cyclictest4433-21apache221:46:291
31147992310,9cyclictest0-21swapper/100:29:301
31147992310,4cyclictest0-21swapper/122:23:511
31147992310,3cyclictest10918-21ssh21:48:491
3114699233,14cyclictest0-21swapper/000:03:510
31146992310,7cyclictest0-21swapper/021:29:130
31146992310,7cyclictest0-21swapper/020:58:510
31146992310,5cyclictest0-21swapper/021:17:460
3114699230,22cyclictest0-21swapper/023:23:350
3114799223,13cyclictest0-21swapper/123:25:101
31147992217,4cyclictest31144-21cyclictest20:59:331
31147992210,6cyclictest0-21swapper/123:53:571
31147992210,4cyclictest0-21swapper/122:28:511
31147992210,4cyclictest0-21swapper/122:04:271
31147992210,4cyclictest0-21swapper/122:04:271
31147992210,1cyclictest0-21swapper/123:36:331
3114799220,20cyclictest0-21swapper/123:50:251
3114699225,12cyclictest0-21swapper/022:38:520
31146992215,1cyclictest31144-21cyclictest00:35:200
3114699221,19cyclictest8517-21sh23:57:020
31146992210,0cyclictest0-21swapper/021:19:180
3114799214,10cyclictest1139-21memory22:18:561
3114799213,10cyclictest0-21swapper/100:03:551
31147992118,3cyclictest579-21cron21:32:391
31147992118,2cyclictest24-21ksoftirqd/119:38:511
31147992117,3cyclictest31144-21cyclictest00:37:391
31147992110,5cyclictest0-21swapper/120:53:531
31147992110,5cyclictest0-21swapper/119:33:561
31147992110,3cyclictest0-21swapper/119:28:501
31147992110,1cyclictest0-21swapper/123:28:501
3114699214,16cyclictest100150irq/106-eth1-rx21:33:590
31146992115,4cyclictest4407-21apache223:47:500
31146992114,3cyclictest31144-21cyclictest20:29:000
31146992110,5cyclictest0-21swapper/022:49:270
31146992110,4cyclictest0-21swapper/019:23:560
31146992110,4cyclictest0-21swapper/000:19:250
31146992110,0cyclictest0-21swapper/022:16:090
3114699210,14cyclictest100250irq/107-eth1-rx00:12:540
3114699210,0cyclictest19275-21kworker/u4:200:14:220
3114799205,7cyclictest0-21swapper/119:23:501
3114799205,4cyclictest0-21swapper/100:23:191
3114799204,7cyclictest0-21swapper/122:08:551
3114799203,9cyclictest1550-21awk19:13:581
3114799202,11cyclictest0-21swapper/121:03:521
31147992020,0cyclictest0-21swapper/121:11:221
31147992018,1cyclictest0-21swapper/121:42:491
31147992010,6cyclictest0-21swapper/100:13:501
31147992010,3cyclictest0-21swapper/123:39:321
3114799200,5cyclictest29933-21apache_processe22:58:491
3114699203,15cyclictest0-21swapper/019:18:570
31146992018,1cyclictest0-21swapper/021:48:360
31146992013,2cyclictest0-21swapper/022:29:410
31146992012,5cyclictest0-21swapper/000:33:060
31146992010,5cyclictest0-21swapper/022:58:580
31146992010,3cyclictest0-21swapper/023:28:510
3114699200,1cyclictest0-21swapper/023:42:050
3114799196,11cyclictest0-21swapper/120:44:211
3114799196,10cyclictest0-21swapper/122:54:101
3114799194,8cyclictest0-21swapper/121:53:511
3114799192,9cyclictest0-21swapper/120:13:511
3114799192,15cyclictest0-21swapper/120:23:561
31147991914,4cyclictest0-21swapper/122:47:411
31147991914,3cyclictest4433-21apache221:16:391
31147991912,2cyclictest24-21ksoftirqd/120:18:581
31147991911,6cyclictest636-21nscd22:01:181
31147991910,5cyclictest0-21swapper/123:09:411
31147991910,4cyclictest0-21swapper/123:43:441
31147991910,4cyclictest0-21swapper/120:38:531
3114699196,12cyclictest0-21swapper/022:09:010
3114699192,8cyclictest0-21swapper/021:23:510
31146991917,1cyclictest4771-21ssh23:08:340
31146991910,4cyclictest0-21swapper/020:48:570
31146991910,2cyclictest0-21swapper/021:50:260
31146991910,2cyclictest0-21swapper/019:28:520
31146991910,1cyclictest0-21swapper/020:33:500
1610321910,0sleep10-21swapper/119:53:501
3114799185,10cyclictest0-21swapper/123:13:511
3114799184,10cyclictest0-21swapper/100:08:561
3114799183,9cyclictest0-21swapper/119:43:531
3114799182,10cyclictest0-21swapper/122:13:501
31147991810,5cyclictest0-21swapper/122:40:531
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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