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2025-11-30 - 20:16
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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 Nov 30, 2025 12:43:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
15812950,0sleep00-21swapper/010:17:000
2967627149,17sleep10-21swapper/107:06:111
2944526956,8sleep00-21swapper/007:03:450
29910993010,3cyclictest0-21swapper/109:24:481
29910993010,20cyclictest0-21swapper/110:51:171
2991099290,1cyclictest27133-21/usr/sbin/munin09:27:021
29910992826,1cyclictest231ktimersoftd/109:54:511
2991099282,25cyclictest16944-21ntp_states10:37:061
2991099280,1cyclictest0-21swapper/112:35:151
2990999280,26cyclictest0-21swapper/010:14:480
29910992718,4cyclictest598-21lldpd10:56:471
29909992710,4cyclictest0-21swapper/011:18:550
2991099260,21cyclictest0-21swapper/111:07:461
2990999261,5cyclictest0-21swapper/009:12:010
29909992610,15cyclictest0-21swapper/011:03:380
29910992525,0cyclictest0-21swapper/110:30:411
29910992510,1cyclictest0-21swapper/111:53:511
29910992510,0cyclictest0-21swapper/109:40:401
29909992523,1cyclictest1667-21ssh12:27:150
29909992521,2cyclictest81ktimersoftd/009:16:590
29909992520,3cyclictest7351-21apache210:41:490
29909992512,8cyclictest0-21swapper/010:32:010
2990999251,17cyclictest0-21swapper/011:51:590
29909992510,0cyclictest0-21swapper/008:30:030
29910992422,1cyclictest17552-21ssh09:13:111
29910992410,9cyclictest0-21swapper/107:35:011
29910992410,1cyclictest0-21swapper/109:36:191
29909992419,4cyclictest7351-21apache209:44:160
29909992410,6cyclictest12029-21cron10:31:420
29909992410,6cyclictest0-21swapper/011:06:560
29910992319,3cyclictest588-21gmain08:38:221
29910992316,4cyclictest7351-21apache211:17:031
2990999237,9cyclictest23924-21tune2fs10:46:580
29909992321,1cyclictest19215-21cat12:07:010
29909992318,1cyclictest3314-21/usr/sbin/munin07:21:580
2990999230,1cyclictest0-21swapper/008:52:030
2990999230,11cyclictest0-21swapper/008:16:540
496622210,0sleep00-21swapper/009:38:590
2991099226,10cyclictest636-21nscd10:10:261
29910992222,0cyclictest0-21swapper/111:22:441
29910992220,1cyclictest598-21lldpd10:34:041
29910992219,3cyclictest22359-21sed11:26:591
29910992219,2cyclictest25946-21unixbench_singl08:17:031
29910992210,5cyclictest0-21swapper/111:39:331
2991099220,8cyclictest0-21swapper/107:22:041
2991099220,17cyclictest0-21swapper/107:17:031
2990999226,10cyclictest0-21swapper/007:47:090
29909992219,1cyclictest0-21swapper/012:14:450
29909992210,6cyclictest0-21swapper/011:13:160
29909992210,11cyclictest0-21swapper/011:29:080
2991099214,12cyclictest0-21swapper/111:46:571
2991099212,1cyclictest0-21swapper/109:48:181
29910992115,5cyclictest7351-21apache211:34:571
29910992110,4cyclictest0-21swapper/108:02:171
29910992110,3cyclictest0-21swapper/111:59:551
29910992110,2cyclictest0-21swapper/112:28:321
2990999219,5cyclictest5815-1kworker/0:1H07:41:420
2990999215,9cyclictest0-21swapper/011:37:020
2990999214,8cyclictest0-21swapper/010:06:430
29909992119,1cyclictest11192-21kworker/u4:010:55:310
29909992117,2cyclictest11400-21diskmemload11:00:240
29909992110,6cyclictest0-21swapper/009:55:320
29909992110,5cyclictest0-21swapper/009:30:020
29909992110,4cyclictest0-21swapper/011:43:480
29909992110,3cyclictest0-21swapper/007:17:010
29909992110,0cyclictest0-21swapper/012:23:560
1452822110,0sleep10-21swapper/109:10:051
2991099204,11cyclictest0-21swapper/108:41:551
29910992015,3cyclictest97750irq/106-eth1-rx11:02:161
29910992010,6cyclictest0-21swapper/108:46:591
29910992010,6cyclictest0-21swapper/107:41:541
29910992010,4cyclictest0-21swapper/112:09:441
29910992010,3cyclictest0-21swapper/109:43:411
29910992010,2cyclictest0-21swapper/112:24:411
29910992010,0cyclictest0-21swapper/110:51:511
2991099200,2cyclictest0-21swapper/110:44:151
2990999206,4cyclictest0-21swapper/008:37:010
2990999204,9cyclictest0-21swapper/009:46:590
2990999203,6cyclictest0-21swapper/008:57:020
2990999202,3cyclictest26239-21grep12:16:580
29909992010,6cyclictest0-21swapper/012:32:430
29909992010,5cyclictest0-21swapper/009:56:560
29909992010,5cyclictest0-21swapper/009:26:280
29909992010,4cyclictest0-21swapper/011:57:180
29909992010,4cyclictest0-21swapper/009:02:000
2990999200,16cyclictest0-21swapper/008:12:280
2759822010,1sleep00-21swapper/011:33:360
2991099196,8cyclictest0-21swapper/112:16:551
2991099196,12cyclictest0-21swapper/107:56:561
29910991918,1cyclictest7368-21apache210:03:581
29910991911,3cyclictest0-21swapper/107:06:541
29910991910,6cyclictest0-21swapper/108:14:271
29910991910,4cyclictest0-21swapper/109:56:571
2991099190,18cyclictest0-21swapper/111:14:181
2990999194,8cyclictest0-21swapper/008:46:540
2990999194,7cyclictest0-21swapper/009:06:580
2990999192,11cyclictest0-21swapper/008:06:560
29909991912,5cyclictest0-21swapper/008:21:550
29909991912,4cyclictest98050irq/109-eth1-tx07:31:580
29909991910,8cyclictest0-21swapper/009:32:290
1676521910,0sleep00-21swapper/012:03:380
3542185,1sleep10-21swapper/111:41:441
2991099184,9cyclictest0-21swapper/108:26:551
29910991818,0cyclictest0-21swapper/107:53:431
29910991815,2cyclictest817-21apache210:21:431
2991099181,4cyclictest0-21swapper/109:19:501
29910991813,4cyclictest6829-21kworker/1:010:11:521
29910991812,6cyclictest7351-21apache212:03:381
29910991810,5cyclictest0-21swapper/112:12:471
29910991810,4cyclictest0-21swapper/109:02:001
29910991810,3cyclictest97850irq/107-eth1-rx10:16:491
2990999183,14cyclictest0-21swapper/011:23:470
29909991818,0cyclictest0-21swapper/007:27:010
29909991813,3cyclictest0-21swapper/007:11:420
29909991810,5cyclictest0-21swapper/010:25:530
29909991810,5cyclictest0-21swapper/010:05:580
2991099178,3cyclictest0-21swapper/108:51:521
2991099174,9cyclictest0-21swapper/108:57:021
2991099174,8cyclictest0-21swapper/107:26:581
29910991712,4cyclictest7351-21apache208:32:201
2990999175,6cyclictest0-21swapper/007:51:590
2990999174,9cyclictest0-21swapper/008:32:030
29909991717,0cyclictest0-21swapper/011:49:080
29909991710,5cyclictest0-21swapper/010:36:550
2991099162,7cyclictest0-21swapper/108:07:011
29910991610,3cyclictest0-21swapper/107:50:441
29909991610,4cyclictest0-21swapper/007:58:230
2991099153,7cyclictest0-21swapper/107:12:001
2991099151,9cyclictest27411-21/usr/sbin/munin08:22:011
2990999153,6cyclictest0-21swapper/008:02:010
29909991515,0cyclictest7368-21apache207:45:400
29909991510,2cyclictest0-21swapper/008:41:560
29910991410,1cyclictest0-21swapper/107:36:561
2990999142,4cyclictest477-21threads07:12:040
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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