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2026-09-08 - 00:30
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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 Mon Sep 07, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2653827956,17sleep00-21swapper/007:03:160
305502720,0sleep10-21swapper/111:09:021
2728927154,8sleep10-21swapper/107:05:201
45372670,0sleep1221rcuc/112:05:311
27722993110,20cyclictest0-21swapper/007:45:190
2772399300,28cyclictest0-21swapper/110:06:451
27722993010,15cyclictest0-21swapper/009:32:260
27723992927,1cyclictest1199-21runrttasks09:28:171
2772399290,28cyclictest0-21swapper/107:38:161
27722992826,2cyclictest0-21swapper/012:22:390
27722992810,17cyclictest0-21swapper/009:44:420
2772399270,1cyclictest6113-21df12:08:091
27722992710,3cyclictest0-21swapper/010:37:540
27722992710,3cyclictest0-21swapper/009:10:400
27723992624,1cyclictest5140-21apache211:26:591
2772399260,21cyclictest0-21swapper/111:34:291
2772399260,16cyclictest0-21swapper/107:33:141
27722992624,1cyclictest0-21swapper/008:26:420
27723992518,7cyclictest0-21swapper/109:03:111
27723992510,4cyclictest0-21swapper/111:31:531
27722992523,1cyclictest7-21ksoftirqd/010:52:570
27722992521,2cyclictest31763-21pmu-power09:38:160
27722992519,4cyclictest5165-21apache211:40:390
2772399244,20cyclictest0-21swapper/108:55:391
27723992410,11cyclictest0-21swapper/112:21:131
27723992410,0cyclictest0-21swapper/107:47:011
27722992410,8cyclictest0-21swapper/010:23:090
27722992410,1cyclictest0-21swapper/011:21:050
27722992410,0cyclictest0-21swapper/012:01:030
2772299240,10cyclictest0-21swapper/012:23:090
2772399238,14cyclictest0-21swapper/107:30:091
2772399236,17cyclictest0-21swapper/110:36:171
2772399236,16cyclictest0-21swapper/112:13:071
27723992321,1cyclictest13118-21/usr/sbin/munin09:13:081
2772399231,5cyclictest0-21swapper/110:50:291
2772299236,16cyclictest0-21swapper/011:56:120
27722992323,0cyclictest0-21swapper/012:06:100
27722992318,3cyclictest5165-21apache210:21:400
27722992310,3cyclictest0-21swapper/011:23:170
27723992218,2cyclictest0-21swapper/109:12:541
2772399221,18cyclictest538-21kworker/u4:111:39:591
2772399220,21cyclictest0-21swapper/111:03:341
2772399220,1cyclictest0-21swapper/109:55:081
2772399220,0cyclictest0-21swapper/111:55:191
2772299224,2cyclictest0-21swapper/010:28:030
27722992220,1cyclictest81ktimersoftd/008:08:080
2772299221,3cyclictest0-21swapper/011:06:590
2772299221,20cyclictest0-21swapper/009:27:420
27722992211,5cyclictest0-21swapper/008:38:190
27722992210,6cyclictest0-21swapper/008:55:060
27722992210,5cyclictest0-21swapper/011:45:110
27722992210,5cyclictest0-21swapper/010:03:090
27722992210,4cyclictest0-21swapper/011:08:220
27722992210,10cyclictest0-21swapper/012:30:350
27723992110,9cyclictest0-21swapper/110:08:341
27723992110,8cyclictest19412-21ssh09:21:191
27723992110,7cyclictest0-21swapper/111:19:331
27723992110,4cyclictest0-21swapper/111:58:171
2772399210,15cyclictest0-21swapper/108:18:091
2772299217,9cyclictest0-21swapper/008:13:080
2772299215,9cyclictest0-21swapper/012:08:080
27722992112,4cyclictest636-21nscd11:49:270
2772299211,12cyclictest0-21swapper/009:14:230
27722992110,4cyclictest0-21swapper/009:57:160
27722992110,1cyclictest0-21swapper/009:48:180
892422010,0sleep00-21swapper/007:42:440
726422010,0sleep00-21swapper/009:02:350
2772399207,9cyclictest18586-21ssh12:25:381
2772399204,10cyclictest25697-21ssh10:16:521
2772399204,10cyclictest0-21swapper/107:13:131
2772399202,11cyclictest0-21swapper/108:43:091
27723992015,4cyclictest5165-21apache208:24:411
27723992015,3cyclictest27720-21cyclictest12:32:141
27723992013,5cyclictest5165-21apache210:41:401
27723992010,5cyclictest0-21swapper/109:51:261
27723992010,5cyclictest0-21swapper/107:23:101
27723992010,2cyclictest0-21swapper/108:03:081
2772299208,5cyclictest0-21swapper/011:28:080
2772299202,18cyclictest0-21swapper/010:39:530
2772299202,11cyclictest0-21swapper/009:33:170
27722992020,0cyclictest0-21swapper/007:52:280
27722992015,1cyclictest0-21swapper/007:58:140
27722992014,5cyclictest12620-21apache207:22:420
27722992010,4cyclictest0-21swapper/012:34:270
27722992010,3cyclictest0-21swapper/010:58:080
27722992010,3cyclictest0-21swapper/007:28:130
27722992010,2cyclictest0-21swapper/009:20:550
27722992010,2cyclictest0-21swapper/008:46:170
2772299200,4cyclictest0-21swapper/009:58:060
2772399197,7cyclictest0-21swapper/110:43:081
2772399194,14cyclictest0-21swapper/109:41:471
2772399193,9cyclictest14874-21apache_accesses07:58:061
2772399193,9cyclictest0-21swapper/110:18:151
27723991912,3cyclictest0-21swapper/109:34:151
2772399191,11cyclictest0-21swapper/110:28:431
27723991910,6cyclictest0-21swapper/107:18:101
27723991910,4cyclictest0-21swapper/110:53:081
27723991910,4cyclictest0-21swapper/108:33:221
27723991910,1cyclictest0-21swapper/108:13:071
2772399190,13cyclictest0-21swapper/110:02:571
27722991910,9cyclictest0-21swapper/008:04:550
27722991910,6cyclictest0-21swapper/007:13:120
27722991910,4cyclictest0-21swapper/012:13:140
27722991910,1cyclictest0-21swapper/010:11:580
2772299190,8cyclictest20075-21runrttasks10:53:580
2772299190,3cyclictest0-21swapper/011:37:160
224452199,0sleep10-21swapper/109:25:361
27723991816,1cyclictest32097-21sshd10:25:141
27723991810,6cyclictest0-21swapper/111:16:001
27723991810,5cyclictest0-21swapper/107:48:111
27723991810,3cyclictest0-21swapper/111:48:051
27723991810,3cyclictest0-21swapper/111:44:231
27723991810,1cyclictest0-21swapper/109:43:141
27722991810,3cyclictest0-21swapper/007:08:100
27722991810,2cyclictest0-21swapper/008:48:100
2436721810,0sleep00-21swapper/010:13:330
189172181,2sleep119049-21smartctl08:08:101
2772399174,7cyclictest0-21swapper/108:38:091
27723991711,1cyclictest0-21swapper/108:28:321
2772399171,10cyclictest0-21swapper/112:33:091
27723991710,4cyclictest0-21swapper/110:58:111
27723991710,4cyclictest0-21swapper/107:53:101
2772299171,10cyclictest0-21swapper/008:30:340
27722991710,6cyclictest0-21swapper/008:33:150
27722991710,3cyclictest0-21swapper/010:45:590
27722991710,2cyclictest0-21swapper/011:15:440
27722991710,1cyclictest0-21swapper/008:19:510
27722991710,1cyclictest0-21swapper/007:33:120
279321610,0sleep00-21swapper/007:27:170
2772399160,6cyclictest0-21swapper/108:48:091
27722991610,4cyclictest0-21swapper/007:53:090
2772399153,5cyclictest0-21swapper/108:58:141
27723991510,3cyclictest0-21swapper/107:08:091
27722991510,1cyclictest0-21swapper/009:03:090
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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