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2026-07-08 - 10:47
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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 100 highest latencies:
System rackcslot2.osadl.org (updated Wed Jul 08, 2026 00:43:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
238427047,18sleep10-21swapper/119:05:111
24452690,0sleep02443-21memory00:08:450
249726752,7sleep00-21swapper/019:06:220
293342660,0sleep10-21swapper/123:22:351
16992610,0sleep00-21swapper/020:28:440
2879993115,10cyclictest0-21swapper/100:03:251
2878993130,1cyclictest0-21swapper/000:14:280
2878992910,2cyclictest0-21swapper/022:11:510
2879992810,8cyclictest0-21swapper/119:33:441
2878992810,1cyclictest0-21swapper/022:17:570
2879992719,4cyclictest0-21swapper/121:58:501
2879992711,10cyclictest100250irq/107-eth1-rx22:51:191
2878992610,9cyclictest0-21swapper/023:50:530
2878992610,8cyclictest0-21swapper/000:02:540
2879992519,2cyclictest1199-21runrttasks00:27:051
2879992510,4cyclictest0-21swapper/123:28:451
2879992510,4cyclictest0-21swapper/121:03:391
2878992510,9cyclictest0-21swapper/020:23:380
2878992510,6cyclictest0-21swapper/022:45:170
2879992422,1cyclictest0-21swapper/100:08:011
2879992416,5cyclictest0-21swapper/120:38:411
2879992410,11cyclictest0-21swapper/121:53:281
2878992424,0cyclictest0-21swapper/019:54:070
2879992318,3cyclictest599-21avahi-daemon21:00:041
2879992316,4cyclictest18286-21apache200:14:391
2879992311,6cyclictest0-21swapper/121:33:501
287999230,19cyclictest0-21swapper/123:57:111
287899231,21cyclictest0-21swapper/022:05:530
2878992310,4cyclictest0-21swapper/022:41:570
2878992310,4cyclictest0-21swapper/022:41:570
287999225,13cyclictest0-21swapper/121:26:111
2879992221,1cyclictest18308-21apache222:35:221
287999221,1cyclictest29893-21/usr/sbin/munin22:03:411
287999221,14cyclictest0-21swapper/121:13:531
2879992210,9cyclictest0-21swapper/122:08:401
2879992210,6cyclictest0-21swapper/120:03:431
287899223,12cyclictest0-21swapper/023:53:490
2878992216,5cyclictest18286-21apache223:11:280
287899221,3cyclictest0-21swapper/022:19:520
2878992210,2cyclictest0-21swapper/022:48:420
2878992210,12cyclictest0-21swapper/023:27:150
287999214,15cyclictest9602-21/usr/sbin/munin21:38:491
287999212,15cyclictest0-21swapper/100:08:401
2879992121,0cyclictest0-21swapper/121:58:191
2879992119,1cyclictest231ktimersoftd/119:28:481
2879992119,0cyclictest0-21swapper/122:39:021
2879992119,0cyclictest0-21swapper/122:39:021
2879992118,3cyclictest18286-21apache222:23:291
2879992118,1cyclictest0-21swapper/121:09:281
2879992117,3cyclictest18308-21apache223:35:171
2879992115,3cyclictest0-21swapper/122:19:021
2879992113,5cyclictest25666-21kworker/u4:123:07:301
2879992113,4cyclictest18286-21apache221:46:201
2879992110,8cyclictest0-21swapper/100:21:071
2879992110,7cyclictest0-21swapper/123:42:171
2879992110,7cyclictest0-21swapper/123:23:421
2879992110,7cyclictest0-21swapper/100:30:081
287999210,2cyclictest0-21swapper/120:18:451
287899215,11cyclictest0-21swapper/021:28:460
287899213,4cyclictest0-21swapper/000:36:070
287899213,17cyclictest0-21swapper/021:33:580
2878992118,2cyclictest18286-21apache222:59:140
2878992114,2cyclictest0-21swapper/023:45:450
287899211,11cyclictest17915-21apache_processe22:28:400
2878992110,5cyclictest0-21swapper/019:25:200
2878992110,5cyclictest0-21swapper/000:29:570
2878992110,2cyclictest0-21swapper/019:48:290
287899210,19cyclictest0-21swapper/022:56:000
1981622110,0sleep10-21swapper/122:29:551
287999207,4cyclictest636-21nscd22:14:451
287999204,6cyclictest0-21swapper/119:18:391
287999204,11cyclictest0-21swapper/120:13:461
287999203,10cyclictest0-21swapper/119:48:441
2879992018,2cyclictest18286-21apache221:18:551
2879992011,4cyclictest0-21swapper/122:53:441
2879992010,6cyclictest0-21swapper/121:29:361
2879992010,5cyclictest0-21swapper/100:33:401
2879992010,4cyclictest0-21swapper/119:58:391
2879992010,2cyclictest0-21swapper/123:18:281
287899205,11cyclictest0-21swapper/023:03:500
2878992020,0cyclictest100250irq/107-eth1-rx21:27:020
2878992012,4cyclictest0-21swapper/023:13:420
2878992010,6cyclictest0-21swapper/019:43:510
2878992010,5cyclictest0-21swapper/023:28:390
2878992010,3cyclictest0-21swapper/023:38:150
2878992010,0cyclictest0-21swapper/022:00:360
287999196,4cyclictest7530-21/usr/sbin/munin20:43:441
287999193,12cyclictest0-21swapper/122:43:411
2879991913,4cyclictest100350irq/108-eth1-tx23:11:121
2879991910,5cyclictest0-21swapper/123:02:051
2878991919,0cyclictest0-21swapper/021:55:260
2878991916,1cyclictest18286-21apache221:07:290
2878991915,3cyclictest802-21apache220:03:350
2878991914,1cyclictest0-21swapper/022:34:120
2878991910,5cyclictest0-21swapper/021:38:430
2878991910,4cyclictest0-21swapper/023:19:130
2878991910,4cyclictest0-21swapper/020:53:410
2878991910,3cyclictest0-21swapper/022:23:410
2878991910,3cyclictest0-21swapper/021:08:320
75721810,0sleep00-21swapper/000:06:200
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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