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2026-08-27 - 23:22
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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 Thu Aug 27, 2026 12:43:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
217652680,1sleep00-21swapper/011:35:100
109926855,9sleep10-21swapper/107:05:021
106072660,1sleep010603-21seq11:18:240
95926552,8sleep00-21swapper/007:03:420
54952640,0sleep10-21swapper/111:12:501
299972540,0sleep10-21swapper/108:18:221
1572993419,15cyclictest11340-21kworker/1:107:46:361
1572993327,4cyclictest0-21swapper/111:02:511
157299324,27cyclictest24910-21ssh09:19:371
157199290,1cyclictest0-21swapper/010:36:200
1572992710,14cyclictest25786-21kworker/1:010:32:481
1572992710,13cyclictest0-21swapper/108:02:111
157299270,24cyclictest21766-21sshd11:35:101
1571992710,12cyclictest0-21swapper/010:46:080
157299263,14cyclictest0-21swapper/110:01:041
157299261,4cyclictest16865-21ls11:28:191
1572992510,9cyclictest0-21swapper/109:48:231
1572992510,6cyclictest0-21swapper/109:53:341
1572992510,5cyclictest0-21swapper/112:13:361
157299250,8cyclictest0-21swapper/107:48:221
157299250,20cyclictest0-21swapper/111:48:221
157199259,5cyclictest11382-21apache207:33:130
1571992521,2cyclictest1199-21runrttasks08:28:110
1571992519,5cyclictest7066-21ssh09:41:070
1571992510,4cyclictest0-21swapper/008:58:160
1571992510,1cyclictest0-21swapper/010:24:480
157199250,1cyclictest0-21swapper/009:11:210
157199250,1cyclictest0-21swapper/009:11:210
157199250,0cyclictest15423-21diskmemload10:59:170
1572992420,3cyclictest802-21apache208:48:501
1571992410,10cyclictest0-21swapper/009:54:080
157199240,20cyclictest0-21swapper/009:33:000
157299234,11cyclictest0-21swapper/110:38:201
157299233,19cyclictest12099-21cat12:08:151
1572992320,2cyclictest27616-21ssh11:43:221
1572992310,9cyclictest0-21swapper/109:08:201
1572992310,9cyclictest0-21swapper/109:08:201
1572992310,6cyclictest0-21swapper/110:44:251
1571992316,4cyclictest0-21swapper/010:09:410
1571992310,5cyclictest0-21swapper/009:14:280
157299225,12cyclictest0-21swapper/110:23:171
1572992220,1cyclictest11409-21apache208:29:331
1572992210,5cyclictest0-21swapper/108:57:231
157199225,12cyclictest0-21swapper/008:43:200
157199223,15cyclictest0-21swapper/010:55:240
1571992217,4cyclictest11382-21apache212:13:540
1571992217,2cyclictest11382-21apache210:19:170
1571992212,5cyclictest11409-21apache210:28:050
1571992210,6cyclictest0-21swapper/007:52:100
1571992210,3cyclictest0-21swapper/011:43:120
157299217,10cyclictest0-21swapper/110:33:181
157299216,8cyclictest0-21swapper/111:53:171
157299213,4cyclictest5799-21idleruntime-cro08:43:031
1572992119,1cyclictest231ktimersoftd/109:13:151
1572992117,3cyclictest705-21ntpd12:30:571
1572992116,4cyclictest705-21ntpd07:12:251
1572992110,7cyclictest0-21swapper/109:46:591
1572992110,4cyclictest0-21swapper/112:18:241
1572992110,3cyclictest0-21swapper/111:13:151
1572992110,3cyclictest0-21swapper/109:41:021
157199213,17cyclictest0-21swapper/009:47:410
1571992118,3cyclictest11382-21apache209:36:420
157199211,5cyclictest11078-21apt-get07:33:030
1571992111,5cyclictest100250irq/107-eth1-rx09:49:000
1571992110,7cyclictest100250irq/107-eth1-rx10:15:070
1571992110,6cyclictest0-21swapper/011:03:380
1571992110,4cyclictest0-21swapper/011:13:190
157299202,10cyclictest0-21swapper/108:08:121
1572992010,8cyclictest0-21swapper/110:16:311
1572992010,4cyclictest0-21swapper/110:48:151
1572992010,4cyclictest0-21swapper/110:08:161
157199209,6cyclictest0-21swapper/011:23:220
157199208,5cyclictest26743-21ssh09:23:160
157199203,8cyclictest0-21swapper/007:18:180
157199203,8cyclictest0-21swapper/007:18:180
157199203,7cyclictest0-21swapper/011:53:220
157199202,2cyclictest1199-21runrttasks08:53:240
1571992017,1cyclictest11409-21apache210:03:180
1571992013,1cyclictest0-21swapper/012:23:130
1571992010,5cyclictest100250irq/107-eth1-rx11:32:380
1571992010,4cyclictest0-21swapper/009:18:310
1571992010,4cyclictest0-21swapper/008:03:130
1129422010,0sleep10-21swapper/111:20:081
1572991917,1cyclictest705-21ntpd09:07:581
1572991917,1cyclictest0-21swapper/110:08:021
1572991916,2cyclictest705-21ntpd11:41:431
1572991916,2cyclictest31129-21ssh12:33:501
157299191,3cyclictest26624-21ls09:23:151
157299191,11cyclictest0-21swapper/110:53:191
1572991910,7cyclictest0-21swapper/108:04:231
1572991910,7cyclictest0-21swapper/107:29:291
1572991910,4cyclictest0-21swapper/112:23:151
1572991910,4cyclictest0-21swapper/107:20:271
1572991910,4cyclictest0-21swapper/107:20:271
1572991910,3cyclictest0-21swapper/111:58:181
1572991910,3cyclictest0-21swapper/107:33:031
157199196,5cyclictest8059-21/usr/sbin/munin12:03:200
1571991917,1cyclictest1569-21cyclictest08:52:200
157199191,1cyclictest0-21swapper/012:01:350
1571991911,6cyclictest100150irq/106-eth1-rx12:28:380
1571991910,6cyclictest11382-21apache212:20:000
1571991910,3cyclictest0-21swapper/008:18:100
1571991910,3cyclictest0-21swapper/008:08:170
1571991910,2cyclictest0-21swapper/007:58:570
157299182,9cyclictest0-21swapper/107:53:191
1572991811,3cyclictest0-21swapper/112:03:131
1572991810,4cyclictest0-21swapper/110:18:231
1572991810,4cyclictest0-21swapper/108:43:161
1572991810,4cyclictest0-21swapper/107:23:151
1572991810,3cyclictest0-21swapper/111:05:361
157299180,9cyclictest0-21swapper/107:38:141
157299180,6cyclictest167-21systemd-journal09:33:291
157199187,5cyclictest0-21swapper/010:38:120
1571991816,1cyclictest0-21swapper/007:23:580
157199181,10cyclictest30945-21fschecks_time08:23:160
1571991810,4cyclictest0-21swapper/008:13:150
1571991810,3cyclictest0-21swapper/011:38:140
1571991810,3cyclictest0-21swapper/009:58:070
1571991810,1cyclictest0-21swapper/007:53:160
522221710,0sleep00-21swapper/007:17:450
1572991717,0cyclictest0-21swapper/108:15:111
1572991710,5cyclictest231ktimersoftd/109:30:571
1572991710,5cyclictest0-21swapper/111:23:141
1572991710,4cyclictest0-21swapper/107:13:161
1572991710,3cyclictest0-21swapper/108:23:151
157199176,6cyclictest0-21swapper/010:48:230
157199173,10cyclictest0-21swapper/008:38:190
1571991711,3cyclictest25133-21kworker/0:011:49:070
1571991710,5cyclictest24479-21snmpd11:09:330
1571991710,3cyclictest0-21swapper/012:08:130
1571991710,2cyclictest0-21swapper/009:03:140
1571991710,2cyclictest0-21swapper/007:46:110
1571991710,1cyclictest0-21swapper/012:33:180
1571991610,4cyclictest0-21swapper/007:39:430
1571991610,3cyclictest0-21swapper/007:12:080
157299151,7cyclictest0-21swapper/108:33:131
157199150,5cyclictest0-21swapper/008:33:130
1321521510,0sleep10-21swapper/109:00:101
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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