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2026-08-26 - 13:56
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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 Wed Aug 26, 2026 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
191252930,1sleep10-21swapper/122:28:241
1149027351,8sleep10-21swapper/119:03:331
1155826754,8sleep00-21swapper/019:04:140
12105993421,13cyclictest0-21swapper/020:01:370
1210599320,31cyclictest0-21swapper/022:52:350
12106993129,1cyclictest0-21swapper/123:53:041
1210599290,2cyclictest0-21swapper/020:53:240
1210699280,2cyclictest0-21swapper/122:47:221
12106992710,1cyclictest0-21swapper/123:07:411
1210699270,3cyclictest3013-21/usr/sbin/munin22:53:221
1210599261,25cyclictest0-21swapper/020:38:260
1210699257,17cyclictest0-21swapper/121:48:141
12106992510,7cyclictest0-21swapper/120:58:191
12105992525,0cyclictest0-21swapper/023:39:210
12105992510,1cyclictest0-21swapper/022:11:440
12105992510,10cyclictest0-21swapper/023:48:590
1210599250,1cyclictest27073-21ssh23:27:260
12106992417,6cyclictest31791-21apache223:48:121
12105992418,4cyclictest31791-21apache223:29:050
12105992418,4cyclictest31791-21apache223:29:050
12105992416,4cyclictest0-21swapper/021:24:050
805922310,0sleep10-21swapper/123:45:561
12106992320,1cyclictest1199-21runrttasks20:33:201
12106992317,4cyclictest636-21nscd21:10:431
12106992310,8cyclictest0-21swapper/100:12:011
12106992310,5cyclictest0-21swapper/122:33:191
12106992310,1cyclictest0-21swapper/121:35:141
12106992310,0cyclictest0-21swapper/120:17:451
12105992317,4cyclictest31791-21apache220:24:420
12105992310,5cyclictest0-21swapper/022:54:540
1210599230,22cyclictest0-21swapper/022:02:390
12106992215,5cyclictest6724-21ssh21:25:571
12106992211,8cyclictest100250irq/107-eth1-rx22:48:521
1210699220,2cyclictest0-21swapper/122:09:071
1210599225,3cyclictest18125-21taskset00:00:030
12105992221,1cyclictest0-21swapper/021:36:150
12105992217,3cyclictest100450irq/109-eth1-tx21:17:400
12105992215,5cyclictest31791-21apache220:33:230
12105992210,9cyclictest0-21swapper/000:23:380
12105992210,6cyclictest0-21swapper/000:19:380
12105992210,5cyclictest0-21swapper/023:18:240
12105992210,4cyclictest0-21swapper/019:58:040
1210599220,1cyclictest0-21swapper/021:12:370
815822110,0sleep10-21swapper/122:58:581
1210699216,7cyclictest0-21swapper/119:33:211
1210699213,13cyclictest0-21swapper/122:24:031
1210699212,10cyclictest0-21swapper/121:03:251
12106992117,2cyclictest802-21apache221:28:571
12106992115,4cyclictest3971-21cat00:28:031
12106992110,7cyclictest0-21swapper/123:38:141
12106992110,7cyclictest0-21swapper/100:14:141
1210699210,3cyclictest0-21swapper/100:00:521
1210599216,6cyclictest0-21swapper/022:13:230
1210599215,10cyclictest24855-21runrttasks21:51:420
1210599214,8cyclictest0-21swapper/019:08:210
1210599213,9cyclictest0-21swapper/022:38:200
12105992121,0cyclictest0-21swapper/020:44:330
12105992119,2cyclictest31817-21apache221:38:530
12105992119,1cyclictest0-21swapper/022:32:320
12105992117,3cyclictest12103-21cyclictest20:58:220
12105992112,3cyclictest12103-21cyclictest21:53:130
12105992110,5cyclictest0-21swapper/022:43:160
12105992110,11cyclictest0-21swapper/019:37:380
2779322010,0sleep10-21swapper/123:28:191
2779322010,0sleep10-21swapper/123:28:191
1210699208,5cyclictest27488-21apache_volume19:48:151
1210699205,7cyclictest0-21swapper/119:13:181
1210699205,14cyclictest0-21swapper/122:38:091
1210699205,13cyclictest0-21swapper/122:18:191
1210699205,11cyclictest0-21swapper/120:48:241
1210699204,7cyclictest21560-21cron19:33:031
12106992020,0cyclictest0-21swapper/119:26:211
12106992019,1cyclictest0-21swapper/120:28:381
12106992019,1cyclictest0-21swapper/100:03:201
12106992015,4cyclictest31791-21apache221:22:371
12106992010,5cyclictest14809-21if_eth020:38:201
12106992010,5cyclictest0-21swapper/100:33:581
12106992010,3cyclictest0-21swapper/100:18:241
1210599206,9cyclictest0-21swapper/021:28:210
1210599204,8cyclictest0-21swapper/020:13:250
1210599203,3cyclictest14510-21/usr/sbin/munin22:23:160
12105992017,3cyclictest802-21apache220:30:510
12105992015,4cyclictest31791-21apache223:47:230
12105992014,4cyclictest0-21swapper/023:03:430
1210599201,0cyclictest0-21swapper/000:36:120
12105992010,5cyclictest0-21swapper/021:43:170
12105992010,3cyclictest0-21swapper/021:03:280
12105992010,1cyclictest0-21swapper/022:03:180
3129621910,0sleep10-21swapper/121:14:171
1210699193,9cyclictest10679-21ls22:18:031
12106991918,1cyclictest0-21swapper/120:03:141
12106991916,2cyclictest31817-21apache221:44:341
12106991910,7cyclictest0-21swapper/121:58:051
12106991910,4cyclictest0-21swapper/123:08:141
1210599194,7cyclictest0-21swapper/022:33:140
1210599194,14cyclictest19843-21kworker/0:000:04:490
12105991919,0cyclictest25675-21diskmemload23:09:280
1210599191,7cyclictest0-21swapper/020:48:160
12105991917,1cyclictest31817-21apache200:08:210
1210599191,3cyclictest0-21swapper/019:28:250
12105991910,6cyclictest0-21swapper/019:18:120
12105991910,5cyclictest0-21swapper/022:22:480
12105991910,5cyclictest0-21swapper/000:29:360
12105991910,3cyclictest0-21swapper/023:33:230
12105991910,0cyclictest0-21swapper/000:17:590
1210699186,8cyclictest0-21swapper/123:23:191
12106991810,4cyclictest0-21swapper/123:13:391
12106991810,3cyclictest0-21swapper/121:38:151
12106991810,3cyclictest0-21swapper/119:43:241
12106991810,3cyclictest0-21swapper/119:18:201
12106991810,1cyclictest0-21swapper/100:28:161
1210599183,9cyclictest0-21swapper/020:08:160
12105991817,1cyclictest81ktimersoftd/022:58:240
12105991812,3cyclictest0-21swapper/021:20:510
12105991810,4cyclictest0-21swapper/019:16:300
2504821710,2sleep00-21swapper/019:39:240
1210699172,12cyclictest0-21swapper/120:53:211
12106991711,3cyclictest0-21swapper/122:04:481
12106991710,5cyclictest0-21swapper/120:23:151
12106991710,3cyclictest0-21swapper/123:36:511
12106991710,2cyclictest0-21swapper/120:43:161
12106991710,2cyclictest0-21swapper/119:53:151
1210599176,9cyclictest0-21swapper/019:43:150
1210599176,2cyclictest884-21/usr/sbin/munin20:03:160
1210599174,6cyclictest13536-21grep23:53:220
12105991710,5cyclictest0-21swapper/023:13:150
12105991710,3cyclictest0-21swapper/019:23:230
1210599170,1cyclictest0-21swapper/019:49:570
455021610,0sleep10-21swapper/120:13:001
12106991615,1cyclictest0-21swapper/119:41:111
12106991611,4cyclictest31791-21apache220:01:051
12106991610,0cyclictest0-21swapper/121:53:041
12106991510,3cyclictest0-21swapper/119:08:161
1210699150,8cyclictest0-21swapper/123:18:151
12105991510,5cyclictest0-21swapper/020:20:130
1210699143,8cyclictest0-21swapper/120:18:231
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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