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2026-05-17 - 23:01
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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 792 highest latencies:
System rackcslot2.osadl.org (updated Sun May 17, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
924427058,8sleep10-21swapper/107:06:321
921126755,8sleep00-21swapper/007:06:110
29452650,0sleep10-21swapper/112:14:121
9657993838,0cyclictest0-21swapper/107:40:591
9657993310,1cyclictest0-21swapper/110:46:371
9656992910,0cyclictest0-21swapper/010:24:450
965799280,3cyclictest23983-21apache_volume10:34:061
965799270,26cyclictest0-21swapper/111:13:511
9656992725,1cyclictest0-21swapper/009:15:000
965699270,17cyclictest0-21swapper/011:19:160
9656992624,1cyclictest7-21ksoftirqd/007:33:560
9656992624,1cyclictest12790-21ssh09:35:160
9656992621,2cyclictest19555-21apache211:02:200
9656992610,9cyclictest0-21swapper/007:54:090
965799252,7cyclictest0-21swapper/109:34:141
9657992524,1cyclictest0-21swapper/110:02:391
9657992510,2cyclictest0-21swapper/109:15:591
9656992521,2cyclictest24812-21ssh11:59:540
9657992424,0cyclictest0-21swapper/109:25:011
965799240,24cyclictest0-21swapper/110:18:091
965699242,17cyclictest0-21swapper/009:52:230
965699240,23cyclictest0-21swapper/011:24:150
965799234,2cyclictest0-21swapper/110:20:451
9657992323,0cyclictest0-21swapper/110:33:331
9657992312,5cyclictest588-21in:imuxsock12:37:501
9657992310,9cyclictest0-21swapper/108:19:091
9657992310,0cyclictest0-21swapper/110:59:071
965799230,22cyclictest12524-21kworker/1:007:53:021
965799230,19cyclictest0-21swapper/110:54:091
9656992319,1cyclictest100150irq/106-eth1-rx11:35:040
965799223,5cyclictest0-21swapper/110:10:001
9657992210,6cyclictest0-21swapper/112:19:121
9657992210,4cyclictest0-21swapper/108:14:061
9657992210,2cyclictest0-21swapper/111:51:531
9657992210,10cyclictest0-21swapper/108:38:321
965799220,16cyclictest19361-21/usr/sbin/munin11:54:101
9656992222,0cyclictest0-21swapper/010:53:260
9656992220,2cyclictest19536-21apache210:34:010
9656992217,3cyclictest32327-21munin-node09:30:300
9656992210,6cyclictest0-21swapper/011:30:030
9656992210,4cyclictest0-21swapper/007:41:570
9656992210,12cyclictest0-21swapper/010:03:360
965699220,10cyclictest0-21swapper/012:29:080
958022210,0sleep10-21swapper/112:23:581
965799219,6cyclictest167-21systemd-journal07:28:111
965799214,9cyclictest0-21swapper/111:29:121
9657992119,1cyclictest19555-21apache210:26:451
9657992117,2cyclictest19536-21apache209:57:021
9657992110,9cyclictest0-21swapper/107:34:111
9657992110,8cyclictest0-21swapper/112:01:271
9657992110,8cyclictest0-21swapper/108:24:071
9657992110,7cyclictest0-21swapper/109:44:431
9657992110,3cyclictest0-21swapper/111:05:191
965799210,6cyclictest0-21swapper/109:50:411
965799210,20cyclictest0-21swapper/110:39:151
9656992120,1cyclictest19536-21apache210:31:540
9656992120,1cyclictest0-21swapper/008:17:220
9656992118,2cyclictest16379-21ntp_states11:49:120
9656992110,6cyclictest0-21swapper/012:04:150
9656992110,6cyclictest0-21swapper/011:47:330
9656992110,6cyclictest0-21swapper/009:39:070
9656992110,5cyclictest0-21swapper/010:19:070
9656992110,4cyclictest0-21swapper/010:09:140
9656992110,1cyclictest0-21swapper/008:36:540
118042210,0sleep00-21swapper/007:14:080
965799206,8cyclictest0-21swapper/107:09:131
965799204,9cyclictest0-21swapper/107:19:101
9657992017,0cyclictest0-21swapper/109:31:551
9657992010,7cyclictest0-21swapper/109:08:191
9657992010,5cyclictest0-21swapper/107:59:091
9657992010,3cyclictest0-21swapper/111:34:101
9657992010,1cyclictest0-21swapper/109:43:051
9657992010,10cyclictest0-21swapper/112:05:491
965699204,9cyclictest0-21swapper/007:29:130
965699204,10cyclictest0-21swapper/007:49:050
9656992018,0cyclictest0-21swapper/009:46:040
9656992012,3cyclictest4695-21sh10:08:450
965699201,10cyclictest17194-21cron07:28:550
9656992010,8cyclictest0-21swapper/010:48:430
9656992010,4cyclictest0-21swapper/011:15:590
9656992010,2cyclictest0-21swapper/011:39:120
965699200,17cyclictest0-21swapper/009:09:140
815022010,2sleep00-21swapper/012:21:210
3240722010,0sleep10-21swapper/111:28:201
965799199,6cyclictest0-21swapper/112:29:101
9657991918,1cyclictest19536-21apache211:44:431
9657991914,4cyclictest19555-21apache207:44:071
9657991911,7cyclictest100250irq/107-eth1-rx11:14:001
9657991911,5cyclictest100150irq/106-eth1-rx11:19:151
9657991910,5cyclictest0-21swapper/110:04:061
965699193,8cyclictest18190-21/usr/sbin/munin12:34:140
9656991919,0cyclictest0-21swapper/008:59:550
9656991916,2cyclictest7-21ksoftirqd/011:54:060
9656991915,1cyclictest81ktimersoftd/007:59:100
9656991911,5cyclictest23920-21kworker/0:110:39:160
965699191,12cyclictest0-21swapper/009:04:070
9656991910,4cyclictest0-21swapper/011:04:020
9656991910,1cyclictest0-21swapper/008:53:300
965699190,5cyclictest18423-21apache207:09:080
526621910,0sleep00-21swapper/009:26:030
965799184,10cyclictest0-21swapper/112:09:071
9657991810,8cyclictest0-21swapper/111:39:141
9657991810,4cyclictest0-21swapper/108:44:061
9657991810,4cyclictest0-21swapper/107:54:121
9657991810,3cyclictest0-21swapper/109:21:131
9657991810,3cyclictest0-21swapper/108:04:021
9657991810,2cyclictest0-21swapper/108:09:181
965799180,8cyclictest0-21swapper/108:49:051
965699187,8cyclictest100450irq/109-eth1-tx09:54:340
965699186,9cyclictest0-21swapper/010:14:070
965699184,6cyclictest32604-21ntp_states09:19:110
965699183,8cyclictest0-21swapper/007:19:140
965699182,11cyclictest0-21swapper/008:39:050
965699182,10cyclictest0-21swapper/008:54:110
965699181,8cyclictest6915-21diskstats10:54:090
9656991818,0cyclictest0-21swapper/012:25:240
9656991817,1cyclictest19536-21apache212:10:050
9656991813,5cyclictest0-21swapper/008:27:140
9656991813,2cyclictest0-21swapper/012:14:580
9656991810,3cyclictest0-21swapper/011:13:230
2607921810,5sleep191rcu_preempt09:11:001
1313921810,0sleep10-21swapper/107:16:511
965799172,9cyclictest0-21swapper/108:59:091
965799172,8cyclictest0-21swapper/108:29:071
9657991713,3cyclictest19536-21apache210:49:591
9657991710,3cyclictest231ktimersoftd/108:54:161
9656991710,7cyclictest0-21swapper/008:07:580
9656991710,2cyclictest0-21swapper/008:19:100
965799162,9cyclictest0-21swapper/108:39:141
9656991611,5cyclictest155092sleep008:45:090
9656991610,3cyclictest0-21swapper/008:29:130
9656991610,3cyclictest0-21swapper/007:44:070
965799152,4cyclictest0-21swapper/107:29:071
9656991512,2cyclictest0-21swapper/008:09:080
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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