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2026-07-10 - 18:12
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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 Fri Jul 10, 2026 12:43:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3126726957,8sleep00-21swapper/007:04:340
3141626856,8sleep10-21swapper/107:06:081
31821993210,20cyclictest0-21swapper/012:04:150
31821993010,12cyclictest0-21swapper/010:22:580
31822992918,6cyclictest0-21swapper/109:33:471
31822992910,3cyclictest0-21swapper/112:04:051
31822992726,1cyclictest0-21swapper/110:58:301
31822992710,12cyclictest0-21swapper/108:05:301
3182299265,20cyclictest0-21swapper/109:11:131
31822992626,0cyclictest0-21swapper/110:57:291
3182299261,25cyclictest0-21swapper/109:41:551
31822992610,9cyclictest0-21swapper/110:28:511
31822992510,9cyclictest0-21swapper/111:49:101
31822992510,7cyclictest0-21swapper/112:27:291
31821992525,0cyclictest0-21swapper/011:14:040
31821992519,5cyclictest9280-21apache211:34:280
31822992416,2cyclictest1809-21/usr/sbin/munin07:13:431
31822992410,8cyclictest0-21swapper/111:38:411
31821992419,3cyclictest9280-21apache212:10:060
31821992410,1cyclictest0-21swapper/009:53:580
529722310,4sleep10-21swapper/112:14:491
31822992316,2cyclictest0-21swapper/109:14:281
31822992312,7cyclictest0-21swapper/109:43:441
31821992322,1cyclictest9250-21apache211:31:510
31821992310,8cyclictest0-21swapper/009:16:110
31821992310,5cyclictest0-21swapper/011:06:120
3182199230,18cyclictest0-21swapper/010:49:170
3182299226,9cyclictest0-21swapper/107:18:391
3182299223,11cyclictest0-21swapper/108:23:471
31822992222,0cyclictest0-21swapper/111:28:431
31822992212,7cyclictest0-21swapper/112:08:561
3182299221,10cyclictest0-21swapper/108:08:491
31822992210,6cyclictest0-21swapper/109:50:281
31822992210,6cyclictest0-21swapper/109:23:501
31822992210,5cyclictest0-21swapper/112:21:461
31822992210,2cyclictest0-21swapper/111:21:591
31822992210,0cyclictest0-21swapper/110:15:041
3182299220,21cyclictest0-21swapper/108:38:461
3182199222,5cyclictest0-21swapper/009:40:280
31821992222,0cyclictest10104-1kworker/u5:011:44:180
31821992218,3cyclictest9280-21apache210:59:110
31821992218,1cyclictest30387-21sh11:26:470
31821992210,6cyclictest0-21swapper/011:48:420
31821992210,5cyclictest0-21swapper/009:38:040
31821992210,1cyclictest0-21swapper/010:45:430
31821992210,1cyclictest0-21swapper/010:25:060
31821992210,10cyclictest0-21swapper/008:59:200
3182199220,17cyclictest0-21swapper/009:08:400
3182199220,0cyclictest6301-21grep07:23:500
928122110,0sleep10-21swapper/110:20:181
3182299213,7cyclictest9286-21kworker/1:110:03:391
31822992121,0cyclictest0-21swapper/111:11:051
31822992119,1cyclictest0-21swapper/110:08:391
31822992114,2cyclictest0-21swapper/110:41:481
31822992110,7cyclictest0-21swapper/111:58:461
31822992110,6cyclictest0-21swapper/109:53:401
3182299210,2cyclictest0-21swapper/110:23:431
3182299210,20cyclictest6952-21ssh11:38:141
3182199217,10cyclictest0-21swapper/007:08:390
3182199215,8cyclictest0-21swapper/011:38:380
3182199213,8cyclictest2263-21runrttasks10:12:510
31821992115,4cyclictest9280-21apache209:48:200
31821992112,5cyclictest0-21swapper/012:23:450
31821992111,5cyclictest0-21swapper/011:20:510
31821992110,9cyclictest0-21swapper/010:04:500
31821992110,5cyclictest0-21swapper/010:53:450
31821992110,5cyclictest0-21swapper/007:58:470
31821992110,4cyclictest0-21swapper/009:28:330
3182199210,7cyclictest0-21swapper/010:18:210
3182199210,10cyclictest13034-21perf07:43:270
2551822110,0sleep00-21swapper/010:01:120
1552722110,1sleep10-21swapper/112:28:331
1552722110,1sleep10-21swapper/112:28:331
3182299205,10cyclictest636-21nscd09:32:571
3182299203,12cyclictest0-21swapper/111:23:381
31822992010,6cyclictest0-21swapper/110:34:131
31822992010,4cyclictest0-21swapper/109:58:301
31822992010,4cyclictest0-21swapper/107:23:501
31822992010,0cyclictest0-21swapper/108:33:391
3182199205,10cyclictest0-21swapper/011:58:420
3182199204,14cyclictest0-21swapper/007:13:410
3182199204,13cyclictest0-21swapper/007:33:410
3182199204,11cyclictest0-21swapper/009:18:390
3182199202,12cyclictest4588-21/usr/sbin/munin07:18:500
3182199201,9cyclictest0-21swapper/008:33:400
31821992016,3cyclictest0-21swapper/010:28:460
31821992014,2cyclictest636-21nscd12:21:270
31821992010,5cyclictest0-21swapper/011:09:250
31821992010,5cyclictest0-21swapper/008:48:490
31821992010,4cyclictest0-21swapper/009:24:280
31821992010,4cyclictest0-21swapper/007:43:460
31821992010,3cyclictest0-21swapper/012:13:370
31821992010,2cyclictest0-21swapper/008:23:400
228692200,1sleep00-21swapper/011:57:300
3182299196,5cyclictest1199-21runrttasks09:03:311
3182299194,8cyclictest0-21swapper/107:48:381
3182299194,10cyclictest0-21swapper/108:43:481
3182299193,9cyclictest0-21swapper/111:53:451
31822991915,3cyclictest3865-21munin-node08:31:331
31822991914,2cyclictest31819-21cyclictest10:52:551
31822991911,3cyclictest23270-21tr12:38:281
31822991910,3cyclictest0-21swapper/110:45:261
3182299190,18cyclictest5725-21/usr/sbin/munin08:48:381
31821991910,5cyclictest0-21swapper/008:43:400
31821991910,4cyclictest0-21swapper/008:53:550
31821991910,4cyclictest0-21swapper/007:28:420
31821991910,3cyclictest0-21swapper/010:38:400
31821991910,2cyclictest0-21swapper/009:49:050
3182199190,9cyclictest0-21swapper/010:33:380
3182299186,7cyclictest0-21swapper/108:18:391
3182299182,8cyclictest0-21swapper/111:13:481
31822991815,1cyclictest0-21swapper/109:22:131
31822991811,6cyclictest0-21swapper/107:11:561
31822991811,5cyclictest0-21swapper/107:33:281
31822991810,0cyclictest13311-21diskmemload11:04:561
3182299180,16cyclictest0-21swapper/108:14:061
31821991810,4cyclictest0-21swapper/012:28:360
31821991810,4cyclictest0-21swapper/012:28:360
31821991810,3cyclictest0-21swapper/012:36:460
31821991810,3cyclictest0-21swapper/009:03:480
1101921810,1sleep10-21swapper/108:59:521
3182299177,9cyclictest0-21swapper/107:38:471
31822991714,2cyclictest579-21cron08:03:271
31822991710,4cyclictest0-21swapper/107:53:451
31822991710,4cyclictest0-21swapper/107:43:411
3182199171,7cyclictest1897-21/usr/sbin/munin08:38:390
2217421710,0sleep00-21swapper/008:04:120
1426721710,0sleep10-21swapper/111:46:501
3182299160,14cyclictest0-21swapper/108:53:491
3182199165,8cyclictest0-21swapper/007:53:060
3182199163,4cyclictest26602-21/usr/sbin/munin08:18:400
3182199162,8cyclictest17686-21ls07:53:450
31821991610,4cyclictest0-21swapper/008:14:120
3182299152,5cyclictest7887-21/usr/sbin/munin07:28:461
31821991410,1cyclictest0-21swapper/008:08:360
31821991310,3cyclictest0-21swapper/008:28:340
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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