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2026-03-30 - 21:09
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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 Mon Mar 30, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
30782710,1sleep00-21swapper/010:29:350
2700227057,8sleep00-21swapper/007:05:410
2693126754,9sleep10-21swapper/107:04:581
287902650,0sleep00-21swapper/012:36:270
305922640,0sleep00-21swapper/011:09:130
27526993432,1cyclictest7-21ksoftirqd/007:34:180
27526993432,1cyclictest7-21ksoftirqd/007:34:180
2734723128,1sleep00-21swapper/007:09:170
27527993010,10cyclictest0-21swapper/108:24:351
27527993010,0cyclictest0-21swapper/112:33:531
2752799272,24cyclictest0-21swapper/109:47:511
2752799270,6cyclictest15812-21ssh09:17:381
2752699270,13cyclictest0-21swapper/008:24:260
27526992626,0cyclictest0-21swapper/007:53:210
27526992610,8cyclictest0-21swapper/008:59:300
27526992610,14cyclictest0-21swapper/011:03:140
27527992510,7cyclictest0-21swapper/108:11:051
27527992510,2cyclictest0-21swapper/111:45:391
27527992510,1cyclictest0-21swapper/110:41:431
27527992510,12cyclictest0-21swapper/110:34:281
27526992510,15cyclictest0-21swapper/008:49:280
2752699250,11cyclictest0-21swapper/007:29:280
2752799242,18cyclictest9011-21diskmemload11:39:541
27527992418,4cyclictest6804-21/usr/sbin/munin07:39:171
27527992418,4cyclictest6804-21/usr/sbin/munin07:39:171
2752799240,11cyclictest9011-21diskmemload09:49:341
2752799240,10cyclictest0-21swapper/111:04:351
27526992424,0cyclictest0-21swapper/012:27:000
27526992415,2cyclictest0-21swapper/010:11:450
27526992410,9cyclictest0-21swapper/009:11:440
27526992410,14cyclictest0-21swapper/008:16:300
2752699240,19cyclictest0-21swapper/009:31:140
27527992322,1cyclictest0-21swapper/110:14:011
27527992317,5cyclictest4972-21apache210:54:161
2752799231,20cyclictest167-21systemd-journal09:34:171
27527992310,8cyclictest0-21swapper/107:09:311
27527992310,7cyclictest0-21swapper/109:03:021
2752699233,19cyclictest29031-21ssh11:50:410
27526992320,2cyclictest3135-21sendmail_mailqu11:14:370
27526992318,4cyclictest4968-21apache209:40:340
27526992318,4cyclictest0-21swapper/010:24:340
27526992317,2cyclictest81ktimersoftd/007:19:340
2752699230,2cyclictest0-21swapper/011:42:150
892122210,0sleep00-21swapper/010:38:370
27527992214,6cyclictest24620-21ntp_states10:14:351
27527992211,6cyclictest0-21swapper/111:34:301
27527992210,7cyclictest0-21swapper/112:26:211
27527992210,5cyclictest0-21swapper/112:01:471
27527992210,4cyclictest0-21swapper/109:43:381
27527992210,2cyclictest0-21swapper/111:03:401
27527992210,0cyclictest0-21swapper/109:57:131
2752699224,9cyclictest13443-21irqstats11:29:310
27526992217,4cyclictest9558-21ssh09:54:260
27526992213,9cyclictest0-21swapper/009:24:200
27526992210,5cyclictest0-21swapper/010:49:110
27526992210,1cyclictest0-21swapper/011:20:370
2752799212,16cyclictest0-21swapper/111:09:331
27527992113,2cyclictest3688-21ssh11:15:061
27527992110,6cyclictest0-21swapper/112:06:201
27527992110,6cyclictest0-21swapper/108:29:331
27527992110,5cyclictest0-21swapper/110:57:101
27527992110,5cyclictest0-21swapper/109:09:341
27527992110,4cyclictest0-21swapper/108:44:281
27527992110,3cyclictest0-21swapper/111:20:191
27527992110,1cyclictest0-21swapper/112:12:241
27526992118,2cyclictest7-21ksoftirqd/008:09:160
27526992110,9cyclictest0-21swapper/009:53:120
27526992110,4cyclictest0-21swapper/010:55:510
2752699210,20cyclictest30549-21rm10:23:270
27527992015,3cyclictest2213-1kworker/u5:210:32:031
27527992013,1cyclictest0-21swapper/111:29:311
27527992012,5cyclictest231ktimersoftd/107:34:001
27527992011,6cyclictest100250irq/107-eth1-rx12:35:461
27527992011,5cyclictest100150irq/106-eth1-rx11:55:471
27527992010,7cyclictest0-21swapper/109:22:111
27527992010,6cyclictest0-21swapper/107:14:301
27527992010,4cyclictest0-21swapper/108:54:291
27527992010,3cyclictest0-21swapper/112:14:351
2752799200,20cyclictest0-21swapper/110:27:501
2752699205,8cyclictest0-21swapper/009:59:270
27526992018,1cyclictest27524-21cyclictest07:39:320
2752699201,7cyclictest9011-21diskmemload09:46:110
27526992017,2cyclictest14671-21ssh12:16:240
27526992015,4cyclictest9011-21diskmemload09:22:540
27526992011,3cyclictest0-21swapper/008:34:360
27526992010,7cyclictest0-21swapper/012:09:330
27526992010,3cyclictest0-21swapper/010:04:330
27526992010,3cyclictest0-21swapper/007:59:330
27526992010,2cyclictest0-21swapper/012:04:530
394721910,0sleep00-21swapper/012:01:140
2752799194,8cyclictest0-21swapper/107:49:331
27527991918,1cyclictest4968-21apache211:51:281
27527991917,1cyclictest231ktimersoftd/107:39:321
27527991917,1cyclictest0-21swapper/109:04:281
27527991912,4cyclictest0-21swapper/108:23:311
27527991910,8cyclictest0-21swapper/110:07:141
2752799190,17cyclictest28954-21ssh09:34:471
2752699194,8cyclictest0-21swapper/007:54:310
2752699193,9cyclictest0-21swapper/008:39:320
27526991914,3cyclictest27524-21cyclictest11:55:480
27526991910,5cyclictest0-21swapper/007:14:290
27526991910,4cyclictest0-21swapper/010:39:330
27526991910,3cyclictest0-21swapper/010:52:350
27526991910,3cyclictest0-21swapper/010:18:200
27526991910,0cyclictest0-21swapper/011:34:500
2752799187,10cyclictest0-21swapper/108:49:381
2752799184,11cyclictest0-21swapper/107:59:281
2752799183,9cyclictest10439-21ls11:24:351
27527991813,4cyclictest4972-21apache210:01:001
27527991810,5cyclictest0-21swapper/110:44:281
27527991810,5cyclictest0-21swapper/109:24:341
27527991810,4cyclictest0-21swapper/110:19:241
2752799180,3cyclictest0-21swapper/108:14:341
2752699183,9cyclictest0-21swapper/007:24:330
27526991817,0cyclictest100250irq/107-eth1-rx11:10:000
27526991816,1cyclictest27524-21cyclictest11:26:060
27526991810,5cyclictest0-21swapper/009:04:370
27526991810,4cyclictest0-21swapper/009:36:210
27526991810,3cyclictest0-21swapper/008:09:350
27526991810,2cyclictest0-21swapper/012:31:070
1786521810,0sleep10-21swapper/112:20:301
2752799172,6cyclictest0-21swapper/108:44:171
27527991710,7cyclictest0-21swapper/107:55:221
27527991710,5cyclictest0-21swapper/107:19:311
27526991710,3cyclictest0-21swapper/009:16:080
2752699170,15cyclictest0-21swapper/012:22:380
2752699170,13cyclictest0-21swapper/011:48:300
255521710,1sleep10-21swapper/107:28:091
2395421710,0sleep00-21swapper/008:23:140
2752799164,8cyclictest0-21swapper/107:44:341
27527991610,5cyclictest0-21swapper/108:04:281
2752699165,7cyclictest0-21swapper/008:54:310
27526991610,6cyclictest0-21swapper/008:31:570
27526991610,3cyclictest0-21swapper/007:44:310
27526991610,2cyclictest0-21swapper/008:44:280
27527991514,1cyclictest4972-21apache208:34:291
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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