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2026-09-15 - 16:22
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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 792 highest latencies:
System rackcslot2.osadl.org (updated Tue Sep 15, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2550227158,8sleep00-21swapper/007:03:450
2414927057,8sleep10-21swapper/107:03:011
26083993119,11cyclictest0-21swapper/009:33:020
26083993110,20cyclictest0-21swapper/011:06:050
26084993028,1cyclictest231ktimersoftd/107:58:131
26084992710,1cyclictest0-21swapper/109:11:141
26083992727,0cyclictest0-21swapper/009:27:000
26083992723,4cyclictest3506-21apache211:44:220
26084992610,2cyclictest0-21swapper/112:26:161
26083992623,3cyclictest0-21swapper/007:21:070
26084992515,3cyclictest24-21ksoftirqd/110:23:051
2608499251,23cyclictest0-21swapper/109:00:501
26084992510,7cyclictest0-21swapper/111:05:041
26084992510,5cyclictest0-21swapper/111:48:291
2608499250,1cyclictest15408-21apache_volume09:18:031
2608399253,5cyclictest0-21swapper/011:26:290
26083992524,1cyclictest0-21swapper/010:33:010
26083992520,4cyclictest13716-21ssh12:13:240
2608499244,11cyclictest0-21swapper/108:33:091
2608499241,2cyclictest30119-21ssh11:07:571
26084992317,4cyclictest3506-21apache211:40:191
26084992310,6cyclictest0-21swapper/112:33:571
26084992310,4cyclictest0-21swapper/111:18:041
2608499230,13cyclictest0-21swapper/110:33:101
2608399237,9cyclictest0-21swapper/012:33:050
26083992322,1cyclictest81ktimersoftd/008:23:110
26083992315,3cyclictest0-21swapper/007:32:260
26083992311,8cyclictest7566-21diskmemload09:28:350
26083992310,3cyclictest0-21swapper/010:53:070
26084992218,3cyclictest1199-21runrttasks12:28:561
26084992210,9cyclictest0-21swapper/110:13:101
26084992210,3cyclictest0-21swapper/108:43:041
26084992210,10cyclictest0-21swapper/112:03:101
26083992214,7cyclictest593-21lldpd09:14:470
26083992213,4cyclictest7566-21diskmemload11:49:430
2608399221,20cyclictest0-21swapper/009:43:000
26083992211,6cyclictest100250irq/107-eth1-rx12:19:010
26083992210,5cyclictest0-21swapper/007:23:100
26083992210,10cyclictest0-21swapper/011:01:430
2608499219,4cyclictest18723-21kworker/u4:011:16:591
26084992120,1cyclictest24-21ksoftirqd/110:08:051
26084992112,5cyclictest0-21swapper/112:13:091
26084992112,2cyclictest0-21swapper/107:28:081
26084992110,6cyclictest0-21swapper/110:58:091
26084992110,6cyclictest0-21swapper/110:51:521
2608399215,6cyclictest0-21swapper/007:32:540
2608399212,14cyclictest0-21swapper/010:28:040
2608399212,12cyclictest22765-21munin-run10:12:530
26083992120,1cyclictest7-21ksoftirqd/012:12:480
26083992112,4cyclictest81ktimersoftd/011:18:140
26083992110,9cyclictest0-21swapper/007:13:110
26083992110,6cyclictest0-21swapper/010:45:290
26083992110,5cyclictest0-21swapper/011:38:060
26083992110,4cyclictest0-21swapper/010:17:550
26083992110,3cyclictest0-21swapper/011:52:590
26083992110,3cyclictest0-21swapper/008:47:110
26083992110,10cyclictest0-21swapper/011:32:030
2608399210,1cyclictest0-21swapper/008:17:230
408722010,0sleep10-21swapper/112:01:131
2608499208,5cyclictest0-21swapper/109:25:241
2608499203,10cyclictest15738-21ssh10:03:041
26084992019,1cyclictest3506-21apache210:32:481
26084992018,1cyclictest0-21swapper/112:19:511
26084992017,2cyclictest24419-21pidof08:26:491
26084992013,3cyclictest636-21nscd11:27:181
26084992011,3cyclictest0-21swapper/110:18:101
26084992010,4cyclictest0-21swapper/109:28:051
26084992010,0cyclictest0-21swapper/111:45:501
2608399207,6cyclictest0-21swapper/010:38:060
2608399207,10cyclictest0-21swapper/012:28:100
26083992020,0cyclictest0-21swapper/009:55:250
2608399201,8cyclictest0-21swapper/007:43:020
26083992013,6cyclictest9912-21munin-node08:57:140
2608399201,15cyclictest31386-21sh10:23:170
2608399201,11cyclictest0-21swapper/009:48:080
26083992010,4cyclictest0-21swapper/008:28:160
26083992010,3cyclictest0-21swapper/009:10:420
2608499197,9cyclictest0-21swapper/108:08:041
2608499197,5cyclictest7566-21diskmemload12:08:161
2608499196,8cyclictest5276-21/usr/sbin/munin09:48:081
2608499194,14cyclictest0-21swapper/107:33:111
2608499194,11cyclictest0-21swapper/109:38:101
26084991919,0cyclictest0-21swapper/110:47:201
26084991917,1cyclictest3506-21apache208:38:271
26084991911,6cyclictest0-21swapper/107:18:051
26084991910,6cyclictest0-21swapper/111:53:061
26084991910,4cyclictest0-21swapper/107:42:531
26084991910,3cyclictest0-21swapper/107:23:051
26084991910,3cyclictest0-21swapper/107:13:051
26084991910,1cyclictest0-21swapper/110:38:471
2608499190,17cyclictest7566-21diskmemload09:34:481
26083991918,1cyclictest3534-21apache212:04:130
26083991917,1cyclictest0-21swapper/011:13:140
2608399191,5cyclictest22634-21munin-run08:22:530
26083991914,3cyclictest3506-21apache211:33:130
26083991910,7cyclictest0-21swapper/008:05:470
26083991910,6cyclictest0-21swapper/009:18:030
26083991910,4cyclictest0-21swapper/007:53:080
26083991910,3cyclictest0-21swapper/009:41:220
26083991910,3cyclictest0-21swapper/008:33:070
26083991910,2cyclictest0-21swapper/011:12:530
2608399190,1cyclictest29673-21grep08:38:140
1050921910,0sleep10-21swapper/109:54:411
2608499185,8cyclictest0-21swapper/110:53:141
2608499185,4cyclictest1199-21runrttasks07:52:231
2608499182,5cyclictest20871-21runrttasks08:18:071
26084991810,4cyclictest0-21swapper/111:32:491
26084991810,4cyclictest0-21swapper/109:43:061
26084991810,4cyclictest0-21swapper/109:03:051
2608399184,6cyclictest0-21swapper/009:03:150
26083991810,5cyclictest0-21swapper/010:50:540
26083991810,4cyclictest0-21swapper/012:25:250
26083991810,4cyclictest0-21swapper/011:58:050
26083991810,3cyclictest0-21swapper/009:58:000
1387621810,0sleep10-21swapper/109:59:091
2608499176,6cyclictest0-21swapper/107:53:111
26084991716,1cyclictest18997-21ssh11:37:221
2608499171,10cyclictest0-21swapper/109:13:081
26084991710,2cyclictest0-21swapper/108:30:041
26083991710,4cyclictest0-21swapper/007:08:060
184732178,0sleep00-21swapper/008:09:560
151221710,0sleep10-21swapper/108:50:411
2608499163,8cyclictest0-21swapper/107:43:021
2608499163,6cyclictest0-21swapper/108:03:071
2608499162,9cyclictest0-21swapper/108:13:111
2608499162,9cyclictest0-21swapper/107:08:081
26084991610,2cyclictest0-21swapper/108:53:151
2608399168,3cyclictest16607-21kworker/0:007:38:140
2608399163,8cyclictest23205-21df10:13:050
26083991612,3cyclictest9715-21wget07:48:070
26083991610,6cyclictest0-21swapper/007:58:130
26083991610,3cyclictest0-21swapper/008:50:460
2608399152,6cyclictest0-21swapper/008:58:070
26083991410,2cyclictest0-21swapper/010:03:040
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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