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2026-03-17 - 15:14
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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 Tue Mar 17, 2026 12:43:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2883227155,8sleep10-21swapper/107:07:011
2894726955,9sleep00-21swapper/007:08:130
107832660,0sleep00-21swapper/009:52:190
29242993432,0cyclictest0-21swapper/108:14:221
29242993231,1cyclictest0-21swapper/109:11:501
29241993210,21cyclictest0-21swapper/009:08:190
29241993130,0cyclictest7-21ksoftirqd/011:39:220
29242992910,18cyclictest0-21swapper/112:09:061
2924299290,27cyclictest31270-21ntp_states11:49:391
2924299285,22cyclictest0-21swapper/111:30:321
29242992810,5cyclictest0-21swapper/109:54:341
29241992810,18cyclictest0-21swapper/010:45:590
147452280,0sleep00-21swapper/011:26:510
29241992727,0cyclictest0-21swapper/011:56:080
29241992724,1cyclictest81ktimersoftd/010:37:430
29241992710,11cyclictest0-21swapper/009:39:300
2924199266,9cyclictest608-21dbus-daemon07:34:230
29241992626,0cyclictest0-21swapper/009:18:570
29241992619,6cyclictest24000-21rm12:24:400
29241992611,6cyclictest0-21swapper/010:39:420
29241992611,4cyclictest0-21swapper/009:34:390
29242992522,2cyclictest1275-21ssh12:38:401
29241992525,0cyclictest0-21swapper/010:28:110
29241992525,0cyclictest0-21swapper/010:02:250
29241992511,5cyclictest0-21swapper/012:02:290
29241992510,14cyclictest0-21swapper/009:55:180
29241992510,0cyclictest0-21swapper/010:29:500
29242992423,1cyclictest0-21swapper/110:52:391
29242992423,1cyclictest0-21swapper/109:17:091
29242992420,4cyclictest6696-21apache211:35:001
29242992419,2cyclictest6696-21apache209:24:291
29242992410,9cyclictest0-21swapper/111:16:281
2924299240,18cyclictest8529-21/usr/sbin/munin10:34:411
29241992410,7cyclictest0-21swapper/011:09:420
2924299238,15cyclictest0-21swapper/111:10:101
29242992321,1cyclictest0-21swapper/112:24:561
29242992319,3cyclictest19525-21ssh12:19:131
29242992310,7cyclictest0-21swapper/111:00:401
29242992310,2cyclictest0-21swapper/112:23:021
29242992310,0cyclictest0-21swapper/109:34:261
2924299226,15cyclictest0-21swapper/109:53:481
29242992222,0cyclictest0-21swapper/110:00:491
29242992210,4cyclictest0-21swapper/110:44:531
2924299220,21cyclictest0-21swapper/111:48:161
29241992219,2cyclictest6666-21apache209:45:500
29241992218,3cyclictest6696-21apache212:09:250
29241992216,4cyclictest6666-21apache212:15:330
29241992210,8cyclictest0-21swapper/010:49:350
29241992210,7cyclictest0-21swapper/011:43:040
3162622110,1sleep00-21swapper/010:20:200
2924299215,8cyclictest0-21swapper/108:04:351
2924299215,15cyclictest0-21swapper/110:27:481
29242992121,0cyclictest0-21swapper/109:22:061
29242992119,2cyclictest231ktimersoftd/111:19:381
29242992119,2cyclictest0-21swapper/112:13:361
29242992118,1cyclictest2491-21kworker/u4:210:54:521
29242992113,4cyclictest100250irq/107-eth1-rx11:42:331
29242992111,7cyclictest0-21swapper/107:14:341
2924299211,11cyclictest0-21swapper/107:39:391
29242992110,3cyclictest0-21swapper/108:34:371
29242992110,0cyclictest0-21swapper/110:11:571
2924199215,15cyclictest0-21swapper/011:07:490
2924199212,8cyclictest0-21swapper/012:04:350
29241992119,1cyclictest23552-21runrttasks10:09:390
29241992117,3cyclictest6696-21apache211:16:220
29241992110,9cyclictest0-21swapper/011:21:550
29241992110,7cyclictest0-21swapper/009:10:100
29241992110,5cyclictest0-21swapper/011:46:050
2924199210,21cyclictest0-21swapper/011:53:030
68622010,0sleep10-21swapper/108:40:561
2924299206,6cyclictest12363-21expr10:39:331
29242992018,1cyclictest0-21swapper/108:19:341
29242992015,4cyclictest6666-21apache207:34:311
29242992013,3cyclictest29239-21cyclictest07:59:421
29242992012,5cyclictest25939-21/usr/sbin/munin08:24:451
2924299201,16cyclictest0-21swapper/107:34:101
29242992010,9cyclictest0-21swapper/111:58:261
2924199202,7cyclictest0-21swapper/012:29:390
29241992019,1cyclictest0-21swapper/012:39:100
29241992018,2cyclictest6666-21apache211:32:200
29241992015,4cyclictest6696-21apache208:37:510
2924299194,8cyclictest0-21swapper/107:19:431
29242991912,3cyclictest2491-21kworker/u4:211:05:251
2924299191,18cyclictest0-21swapper/110:17:351
29242991910,6cyclictest0-21swapper/107:14:231
29242991910,4cyclictest0-21swapper/108:14:431
29242991910,3cyclictest0-21swapper/109:44:331
29242991910,3cyclictest0-21swapper/108:49:381
2924299190,11cyclictest15829-21awk11:29:221
2924199196,12cyclictest0-21swapper/008:14:350
29241991919,0cyclictest6696-21apache210:14:410
29241991918,1cyclictest6696-21apache208:52:370
29241991911,3cyclictest16647-21fschecks_time07:59:350
29241991910,7cyclictest0-21swapper/012:20:170
29241991910,6cyclictest0-21swapper/008:11:440
29241991910,2cyclictest0-21swapper/007:24:440
2924199190,13cyclictest0-21swapper/011:02:080
1222721910,0sleep10-21swapper/107:48:101
11002190,0sleep10-21swapper/109:39:361
2924299186,8cyclictest0-21swapper/110:29:331
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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