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2026-09-05 - 20:48
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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 Sat Sep 05, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
484427664,7sleep00-21swapper/007:05:050
124232710,0sleep012426-21hwlatdetect09:43:120
511526957,8sleep10-21swapper/107:07:551
529999333,26cyclictest0-21swapper/111:53:101
5299993216,16cyclictest15158-21kworker/1:108:35:271
5299993012,13cyclictest15158-21kworker/1:109:40:191
5299992929,0cyclictest0-21swapper/108:49:461
529899290,28cyclictest28152-21kworker/u4:210:13:480
5298992624,0cyclictest0-21swapper/010:42:220
529899260,11cyclictest15114-21apache208:33:110
529999251,3cyclictest0-21swapper/111:23:311
529899252,22cyclictest31558-21tr08:13:150
5298992510,14cyclictest0-21swapper/008:49:530
5299992423,1cyclictest15121-21apache209:43:131
5299992410,2cyclictest0-21swapper/111:07:371
529899245,11cyclictest0-21swapper/008:08:100
529899243,20cyclictest19200-21diskmemload09:58:000
529899241,3cyclictest0-21swapper/010:46:170
1421422410,0sleep10-21swapper/112:03:231
529999236,17cyclictest15158-21kworker/1:110:46:451
5299992318,4cyclictest15121-21apache212:23:271
5299992315,6cyclictest5296-21cyclictest08:19:181
529999231,21cyclictest15158-21kworker/1:110:29:331
5298992316,5cyclictest100150irq/106-eth1-rx12:34:400
5298992310,9cyclictest0-21swapper/011:13:140
5298992310,0cyclictest0-21swapper/009:41:440
5299992215,6cyclictest15121-21apache210:12:211
5298992217,4cyclictest15147-21apache210:12:210
5298992210,9cyclictest0-21swapper/008:25:250
5298992210,9cyclictest0-21swapper/008:25:250
5298992210,4cyclictest0-21swapper/010:36:230
529999215,12cyclictest0-21swapper/107:18:141
529999212,14cyclictest0-21swapper/109:28:211
5299992120,0cyclictest19200-21diskmemload09:15:481
5299992111,7cyclictest643-21nscd11:20:181
5299992110,7cyclictest100250irq/107-eth1-rx12:37:541
5299992110,6cyclictest20020-21awk07:43:171
5299992110,6cyclictest0-21swapper/110:48:291
5299992110,5cyclictest0-21swapper/111:48:091
5299992110,5cyclictest0-21swapper/109:53:581
529999210,18cyclictest10000-21kworker/1:007:29:051
529899214,8cyclictest0-21swapper/007:58:200
529899212,11cyclictest16805-21users08:58:200
5298992121,0cyclictest0-21swapper/012:08:020
5298992118,2cyclictest81ktimersoftd/007:43:110
5298992114,6cyclictest30565-21fschecks_time12:28:130
529899211,18cyclictest0-21swapper/011:08:150
5298992111,4cyclictest0-21swapper/010:28:060
5298992110,8cyclictest0-21swapper/009:29:350
5298992110,4cyclictest0-21swapper/007:23:130
5298992110,3cyclictest0-21swapper/007:40:270
3033822110,1sleep00-21swapper/010:53:590
2595022110,0sleep00-21swapper/009:16:370
1984722110,0sleep10-21swapper/110:38:511
529999205,6cyclictest0-21swapper/107:33:151
529999203,12cyclictest19200-21diskmemload09:08:051
5299992019,0cyclictest0-21swapper/112:15:091
5299992013,6cyclictest32354-21/usr/sbin/munin10:58:161
5299992010,9cyclictest0-21swapper/110:01:501
5299992010,8cyclictest0-21swapper/110:25:361
5299992010,6cyclictest0-21swapper/107:13:151
5299992010,5cyclictest0-21swapper/111:47:311
5299992010,5cyclictest0-21swapper/107:08:101
5299992010,3cyclictest0-21swapper/108:58:131
529899208,5cyclictest15141-21apache212:18:120
529899205,8cyclictest0-21swapper/011:28:180
529899204,11cyclictest0-21swapper/012:13:150
529899203,8cyclictest0-21swapper/009:08:050
529899203,10cyclictest0-21swapper/009:55:550
529899201,8cyclictest1199-21runrttasks07:28:200
529899201,12cyclictest167-21systemd-journal10:07:580
5298992010,3cyclictest0-21swapper/008:28:130
1484622010,0sleep00-21swapper/012:04:520
904021910,0sleep00-21swapper/010:23:180
529999196,10cyclictest0-21swapper/111:08:121
529999193,9cyclictest0-21swapper/108:13:091
529999193,8cyclictest21478-21ssh11:28:141
529999192,8cyclictest24479-21snmpd08:25:031
529999192,8cyclictest24479-21snmpd08:25:031
529999192,12cyclictest0-21swapper/109:23:191
5299991919,0cyclictest0-21swapper/109:05:131
5299991918,1cyclictest15147-21apache211:38:151
5299991918,1cyclictest15121-21apache208:56:371
5299991913,3cyclictest15121-21apache208:43:191
5299991911,5cyclictest802-21apache212:20:461
5299991910,4cyclictest0-21swapper/108:06:501
529899197,6cyclictest0-21swapper/008:03:110
5298991918,1cyclictest0-21swapper/010:48:410
5298991914,1cyclictest5296-21cyclictest07:57:210
5298991913,5cyclictest0-21swapper/011:23:190
5298991912,4cyclictest15147-21apache210:22:320
529899191,12cyclictest13920-21chrt11:18:100
5298991911,2cyclictest0-21swapper/008:43:090
5298991910,5cyclictest0-21swapper/009:18:100
5298991910,0cyclictest0-21swapper/011:47:420
529999189,9cyclictest15158-21kworker/1:110:54:451
529999186,7cyclictest26093-21/usr/sbin/munin07:58:201
529999185,6cyclictest14763-21ssh10:33:101
529999182,13cyclictest0-21swapper/112:28:211
529999182,11cyclictest0-21swapper/110:18:181
5299991817,0cyclictest0-21swapper/112:08:441
5299991810,3cyclictest0-21swapper/109:48:151
5299991810,3cyclictest0-21swapper/108:08:111
5299991810,2cyclictest0-21swapper/111:33:131
529999180,12cyclictest0-21swapper/107:53:161
529899182,9cyclictest0-21swapper/011:40:250
529899182,11cyclictest0-21swapper/007:48:180
5298991815,2cyclictest5296-21cyclictest07:37:550
5298991810,5cyclictest0-21swapper/011:48:350
5298991810,5cyclictest0-21swapper/009:48:150
5298991810,3cyclictest0-21swapper/011:58:340
5298991810,3cyclictest0-21swapper/007:18:280
5298991810,2cyclictest0-21swapper/011:33:170
5298991810,2cyclictest0-21swapper/009:27:290
5298991810,2cyclictest0-21swapper/009:03:180
1223721810,0sleep10-21swapper/111:14:371
923521710,0sleep00-21swapper/008:39:560
529999175,8cyclictest0-21swapper/107:48:111
529999174,2cyclictest27434-21grep09:18:131
5299991715,1cyclictest27804-21ssh10:03:361
5299991715,1cyclictest1154-21grep10:13:121
5299991710,4cyclictest0-21swapper/108:38:121
5299991710,3cyclictest0-21swapper/111:58:171
5299991710,2cyclictest0-21swapper/109:33:001
529899172,6cyclictest26991-21ssh12:23:090
529899172,11cyclictest0-21swapper/009:33:140
529899171,11cyclictest0-21swapper/008:18:120
5298991710,5cyclictest0-21swapper/011:54:500
5298991710,4cyclictest0-21swapper/010:58:100
529999165,6cyclictest0-21swapper/107:23:171
529899161,9cyclictest0-21swapper/007:13:090
5298991610,2cyclictest0-21swapper/011:04:460
5298991610,1cyclictest0-21swapper/008:53:130
5299991510,2cyclictest0-21swapper/108:28:051
5299991510,2cyclictest0-21swapper/107:38:111
5298991510,0cyclictest0-21swapper/007:11:470
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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