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2026-07-17 - 22:25
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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 Fri Jul 17, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
221012710,0sleep10-21swapper/110:52:081
3022027057,8sleep10-21swapper/107:06:301
3023026755,8sleep00-21swapper/007:06:350
40702660,1sleep10-21swapper/111:59:251
30586993636,0cyclictest0-21swapper/007:09:260
3058799320,30cyclictest0-21swapper/112:28:221
30586993110,17cyclictest0-21swapper/009:23:070
30587992910,3cyclictest0-21swapper/112:09:521
30587992810,8cyclictest0-21swapper/111:43:351
30586992810,11cyclictest0-21swapper/011:15:170
3058799271,4cyclictest22096-21/usr/sbin/munin11:38:461
30587992710,1cyclictest0-21swapper/112:22:581
30586992715,9cyclictest23849-21kworker/u4:209:34:150
30587992624,1cyclictest0-21swapper/110:22:071
30587992614,9cyclictest29009-21ssh11:02:061
3058699269,6cyclictest636-21nscd11:43:590
30586992626,0cyclictest0-21swapper/010:11:020
30586992524,1cyclictest0-21swapper/011:52:570
30586992520,4cyclictest16069-21ssh09:13:100
30586992510,6cyclictest0-21swapper/009:03:420
3058799242,3cyclictest0-21swapper/111:03:261
3058799242,20cyclictest0-21swapper/109:35:421
30587992420,1cyclictest18412-21ssh10:00:071
30587992410,9cyclictest0-21swapper/109:11:511
30586992417,6cyclictest8012-21apache210:14:310
30586992412,8cyclictest8012-21apache209:55:450
3058699240,13cyclictest0-21swapper/011:08:460
30587992319,3cyclictest0-21swapper/108:24:581
30587992319,2cyclictest8012-21apache212:33:211
30587992317,3cyclictest8012-21apache210:30:241
30586992312,7cyclictest3854-21ssh09:39:520
30586992310,6cyclictest0-21swapper/009:50:220
934822210,0sleep10-21swapper/112:08:171
3058799223,11cyclictest16154-21apache_processe10:43:351
30587992222,0cyclictest0-21swapper/107:43:261
30587992210,9cyclictest0-21swapper/111:56:401
30587992210,1cyclictest0-21swapper/109:48:071
30587992210,0cyclictest0-21swapper/110:16:161
3058699226,12cyclictest0-21swapper/007:58:460
30586992221,1cyclictest81ktimersoftd/011:41:230
3058699221,1cyclictest0-21swapper/009:47:580
30586992210,9cyclictest0-21swapper/012:21:210
2898522210,0sleep00-21swapper/009:29:590
30587992120,1cyclictest18574-21munin-node11:49:291
30587992112,8cyclictest7158-21unixbench_singl07:28:451
30587992111,6cyclictest0-21swapper/110:38:341
3058799210,7cyclictest0-21swapper/109:22:291
30586992120,1cyclictest0-21swapper/007:58:230
3058699211,4cyclictest0-21swapper/010:06:410
30586992114,5cyclictest8040-21apache210:30:240
3058699211,1cyclictest0-21swapper/012:30:520
30586992111,7cyclictest0-21swapper/011:03:370
30586992110,7cyclictest0-21swapper/012:23:350
30586992110,7cyclictest0-21swapper/010:34:420
30586992110,6cyclictest0-21swapper/007:23:350
2626322110,0sleep00-21swapper/009:27:020
31622010,0sleep10-21swapper/108:37:301
3058799205,10cyclictest0-21swapper/111:13:361
3058799203,8cyclictest10907-21apache_volume11:23:351
3058799202,10cyclictest22310-21ntp_states08:08:401
30587992017,2cyclictest802-21apache210:26:021
30587992010,8cyclictest0-21swapper/110:08:051
30587992010,6cyclictest0-21swapper/108:28:381
30587992010,4cyclictest0-21swapper/111:19:401
30587992010,4cyclictest0-21swapper/108:44:031
3058799200,15cyclictest683-21kworker/1:211:28:381
3058799200,11cyclictest31481-21idleruntime-cro12:38:231
3058699205,9cyclictest12083-21diskmemload10:19:340
30586992018,1cyclictest0-21swapper/011:53:270
30586992016,3cyclictest8012-21apache210:54:140
30586992011,2cyclictest0-21swapper/010:50:080
30586992010,6cyclictest0-21swapper/007:48:440
30586992010,4cyclictest0-21swapper/012:08:350
30586992010,4cyclictest0-21swapper/007:47:520
30586992010,3cyclictest0-21swapper/011:33:330
30586992010,2cyclictest0-21swapper/007:33:470
30586992010,1cyclictest0-21swapper/012:04:320
30586992010,10cyclictest0-21swapper/012:34:200
2830122010,0sleep00-21swapper/011:00:170
3058799193,10cyclictest30828-21diskstats07:08:361
30587991918,1cyclictest802-21apache211:36:411
30587991914,2cyclictest100350irq/108-eth1-tx09:24:131
30587991910,5cyclictest0-21swapper/109:48:411
30587991910,4cyclictest0-21swapper/111:08:281
30587991910,4cyclictest0-21swapper/109:39:491
30587991910,1cyclictest0-21swapper/110:12:021
3058799190,0cyclictest0-21swapper/108:19:471
3058699195,8cyclictest0-21swapper/009:58:380
3058699193,8cyclictest0-21swapper/008:12:540
30586991916,2cyclictest20864-21apache207:21:370
30586991910,5cyclictest0-21swapper/008:53:380
30586991910,4cyclictest0-21swapper/012:01:120
30586991910,4cyclictest0-21swapper/010:44:160
30586991910,4cyclictest0-21swapper/008:48:440
30586991910,3cyclictest0-21swapper/008:28:370
1503821910,0sleep00-21swapper/012:14:570
1490521910,0sleep10-21swapper/112:14:401
105202198,0sleep10-21swapper/110:33:561
3058799184,9cyclictest0-21swapper/108:06:541
3058799184,10cyclictest0-21swapper/107:38:421
3058799183,9cyclictest0-21swapper/107:13:341
30587991810,7cyclictest0-21swapper/108:58:361
30587991810,4cyclictest0-21swapper/109:14:161
30587991810,4cyclictest0-21swapper/107:33:381
30587991810,3cyclictest0-21swapper/109:53:451
3058799180,16cyclictest683-21kworker/1:208:51:371
3058799180,10cyclictest0-21swapper/108:13:391
3058699183,7cyclictest0-21swapper/011:18:430
3058699183,4cyclictest0-21swapper/008:41:490
30586991810,4cyclictest16437-21ssh09:13:360
30586991810,3cyclictest7978-21kworker/0:108:20:020
3058699180,17cyclictest13619-21ntp_states10:38:400
3058799172,6cyclictest10950-21ls09:03:411
3058799172,10cyclictest0-21swapper/110:53:351
3058799171,11cyclictest0-21swapper/107:48:381
30587991710,3cyclictest0-21swapper/108:53:361
30587991710,3cyclictest0-21swapper/108:38:351
30587991710,2cyclictest0-21swapper/107:23:421
3058699174,5cyclictest14349-21diskmemload11:28:370
3058699174,5cyclictest0-21swapper/010:23:370
3058699172,8cyclictest0-21swapper/007:38:440
30586991710,3cyclictest0-21swapper/008:23:340
30586991710,3cyclictest0-21swapper/008:13:440
30586991710,2cyclictest0-21swapper/008:33:360
3058699170,11cyclictest0-21swapper/007:28:400
1290421710,0sleep00-21swapper/011:25:350
3058799163,8cyclictest15794-21apache_processe07:53:361
3058799163,0cyclictest12083-21diskmemload09:30:401
30587991610,6cyclictest0-21swapper/107:18:441
3058699164,7cyclictest0-21swapper/008:43:400
3058699164,7cyclictest0-21swapper/008:03:380
30586991612,3cyclictest10155-21cron09:03:230
30586991610,6cyclictest0-21swapper/007:13:490
3058799155,7cyclictest18664-21/usr/sbin/munin07:58:441
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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