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2026-03-27 - 16:56
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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 highest latencies:
System rackcslot2.osadl.org (updated Fri Mar 27, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2193526957,8sleep00-21swapper/007:05:530
2187826754,8sleep10-21swapper/107:05:171
22443993610,6cyclictest16316-21kworker/u4:210:12:590
22444993510,17cyclictest0-21swapper/110:40:431
22443993510,21cyclictest0-21swapper/008:39:340
2244499320,0cyclictest0-21swapper/110:58:381
2244499310,30cyclictest0-21swapper/109:29:121
22444993010,19cyclictest0-21swapper/109:36:541
22443993010,20cyclictest0-21swapper/007:23:410
22443993010,18cyclictest0-21swapper/009:19:030
22444992922,6cyclictest28158-21users08:44:371
2244499290,28cyclictest0-21swapper/110:45:461
22444992811,17cyclictest0-21swapper/110:02:521
22444992811,17cyclictest0-21swapper/109:43:101
2244499280,22cyclictest0-21swapper/112:19:541
2244399283,23cyclictest32346-21kworker/0:208:54:340
2244499270,4cyclictest0-21swapper/111:43:311
2244399271,25cyclictest16584-21kworker/u4:012:02:240
2244399270,22cyclictest4602-21cron09:54:180
22444992610,12cyclictest0-21swapper/111:04:481
2244499260,26cyclictest0-21swapper/109:54:041
22443992612,5cyclictest0-21swapper/010:08:120
22443992610,2cyclictest0-21swapper/012:29:410
2244399260,5cyclictest19694-21needreboot09:29:350
2244499256,14cyclictest0-21swapper/111:54:301
22444992523,1cyclictest25294-21ssh11:52:441
2244499250,2cyclictest0-21swapper/111:49:061
22443992525,0cyclictest0-21swapper/009:36:180
22443992523,1cyclictest0-21swapper/010:35:430
2244499242,8cyclictest0-21swapper/111:35:501
22444992422,1cyclictest636-21nscd12:36:161
2244499242,17cyclictest1199-21runrttasks08:40:511
22444992417,7cyclictest0-21swapper/112:05:401
22444992414,7cyclictest100250irq/107-eth1-rx10:26:171
22443992414,5cyclictest0-21swapper/012:06:480
22443992410,11cyclictest0-21swapper/011:16:110
2244499236,12cyclictest0-21swapper/109:14:341
22444992322,1cyclictest231ktimersoftd/110:31:351
22444992312,4cyclictest24856-21if_eth007:14:321
2244499231,19cyclictest0-21swapper/111:10:381
22444992310,4cyclictest0-21swapper/110:50:321
2244499230,22cyclictest29788-21sshd07:26:511
2244499230,1cyclictest0-21swapper/110:36:381
22443992318,4cyclictest0-21swapper/011:07:320
22443992310,7cyclictest13862-21ssh10:51:010
22443992310,7cyclictest0-21swapper/012:19:360
2244499226,8cyclictest0-21swapper/109:54:291
22444992210,4cyclictest0-21swapper/112:15:591
22444992210,1cyclictest0-21swapper/111:16:181
2244499220,1cyclictest0-21swapper/109:23:401
2244399228,13cyclictest0-21swapper/008:22:110
22443992210,5cyclictest0-21swapper/007:29:320
22444992118,2cyclictest0-21swapper/110:13:311
22444992111,10cyclictest0-21swapper/111:23:441
22444992110,8cyclictest0-21swapper/107:39:391
22444992110,7cyclictest0-21swapper/109:44:321
22444992110,4cyclictest0-21swapper/110:04:361
22444992110,3cyclictest0-21swapper/112:01:121
22444992110,3cyclictest0-21swapper/111:32:411
22444992110,0cyclictest0-21swapper/111:00:241
2244499210,1cyclictest0-21swapper/109:30:281
2244399216,8cyclictest0-21swapper/012:14:350
22443992120,1cyclictest0-21swapper/011:56:450
2244399211,9cyclictest0-21swapper/007:13:180
22443992116,4cyclictest18181-21munin-node11:51:190
22443992116,2cyclictest0-21swapper/009:28:330
22443992110,5cyclictest0-21swapper/012:27:440
22443992110,10cyclictest0-21swapper/010:01:050
2244399210,2cyclictest0-21swapper/011:29:010
2244499204,15cyclictest0-21swapper/108:19:361
22444992020,0cyclictest0-21swapper/109:08:141
22444992012,4cyclictest19052-21sh08:24:191
22444992010,4cyclictest0-21swapper/110:16:261
22444992010,3cyclictest0-21swapper/108:04:311
2244399203,13cyclictest0-21swapper/008:14:370
22443992017,2cyclictest0-21swapper/010:29:580
22443992013,6cyclictest32320-21apache208:05:030
22443992013,4cyclictest32342-21apache209:55:230
2244399201,14cyclictest0-21swapper/010:40:460
22443992011,3cyclictest0-21swapper/007:34:280
22443992010,4cyclictest0-21swapper/011:42:080
2469721910,0sleep00-21swapper/008:38:270
2244499195,9cyclictest0-21swapper/108:59:311
2244499195,6cyclictest0-21swapper/109:09:341
2244499194,10cyclictest0-21swapper/107:29:331
2244499193,10cyclictest14298-21head08:09:371
2244499192,9cyclictest0-21swapper/112:29:391
22444991915,3cyclictest27102-21open_files07:19:351
22444991914,3cyclictest32342-21apache208:01:341
22444991914,2cyclictest0-21swapper/112:10:141
22444991910,2cyclictest0-21swapper/111:24:301
2244399198,6cyclictest0-21swapper/010:14:330
2244399195,8cyclictest27092-21grep09:39:350
22443991919,0cyclictest802-21apache209:20:320
22443991918,1cyclictest32342-21apache210:57:480
22443991918,0cyclictest0-21swapper/011:44:290
22443991912,7cyclictest0-21swapper/008:03:310
22443991911,8cyclictest0-21swapper/008:12:510
22443991911,5cyclictest100150irq/106-eth1-rx07:17:530
22443991910,4cyclictest0-21swapper/011:32:280
22443991910,2cyclictest25736-21ssh12:38:280
22443991910,1cyclictest0-21swapper/008:24:280
2244399190,2cyclictest0-21swapper/010:49:170
2472521810,0sleep10-21swapper/110:21:001
2244499183,8cyclictest0-21swapper/108:54:321
22444991817,1cyclictest0-21swapper/108:34:381
22444991816,2cyclictest32320-21apache208:30:521
22444991810,3cyclictest0-21swapper/107:49:301
22444991810,3cyclictest0-21swapper/107:34:181
2244399184,4cyclictest32203-21ssh09:46:480
2244399182,8cyclictest0-21swapper/007:24:300
22443991814,3cyclictest22441-21cyclictest08:59:320
22443991810,3cyclictest0-21swapper/011:09:570
22443991810,3cyclictest0-21swapper/010:19:320
22443991810,2cyclictest0-21swapper/009:09:360
22443991810,0cyclictest0-21swapper/011:36:540
393621710,1sleep00-21swapper/009:09:000
22444991710,3cyclictest0-21swapper/107:09:311
22444991710,2cyclictest0-21swapper/112:24:351
2244399175,8cyclictest0-21swapper/012:09:370
2244399174,8cyclictest5615-21cron07:49:180
22443991713,1cyclictest100250irq/107-eth1-rx10:24:290
22443991711,0cyclictest22979-21grep08:34:180
22443991710,4cyclictest0-21swapper/010:59:370
22443991710,3cyclictest0-21swapper/007:39:300
22443991710,2cyclictest0-21swapper/011:20:260
22443991710,2cyclictest0-21swapper/007:49:370
22444991616,0cyclictest0-21swapper/107:44:361
22444991610,2cyclictest0-21swapper/107:54:291
22443991610,3cyclictest0-21swapper/008:49:290
22443991610,2cyclictest0-21swapper/007:56:370
22444991510,2cyclictest0-21swapper/108:49:281
2244499150,10cyclictest0-21swapper/108:14:491
2244399152,7cyclictest0-21swapper/008:44:290
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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