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2026-07-23 - 06:04
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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 376 highest latencies:
System rackcslot2.osadl.org (updated Thu Jul 23, 2026 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
503827057,8sleep10-21swapper/119:05:391
507426947,17sleep00-21swapper/019:06:000
274632670,0sleep10-21swapper/100:14:441
202002660,1sleep10-21swapper/122:38:071
79762640,0sleep00-21swapper/020:38:330
307712630,0sleep10-21swapper/123:33:421
5482993510,24cyclictest0-21swapper/020:53:390
5483993010,1cyclictest0-21swapper/123:51:081
5483993010,19cyclictest0-21swapper/122:04:581
5482993010,19cyclictest0-21swapper/023:08:210
5483992927,1cyclictest0-21swapper/120:56:361
5482992910,5cyclictest0-21swapper/022:34:070
5482992828,0cyclictest0-21swapper/022:20:370
5482992825,2cyclictest14492-21ssh23:55:200
5482992810,11cyclictest0-21swapper/022:14:130
548299280,27cyclictest1358-21ssh22:54:500
548399276,20cyclictest0-21swapper/122:48:561
548399271,23cyclictest0-21swapper/121:31:071
548399270,0cyclictest0-21swapper/121:47:331
5483992625,0cyclictest24-21ksoftirqd/119:53:211
5483992624,1cyclictest8052-21ssh23:47:331
5483992610,8cyclictest0-21swapper/122:15:101
5482992624,1cyclictest0-21swapper/022:24:470
5482992622,3cyclictest1199-21runrttasks21:53:130
548399255,19cyclictest10836-21cron23:08:211
5483992510,0cyclictest0-21swapper/123:42:511
548399243,2cyclictest0-21swapper/122:59:331
5483992414,6cyclictest0-21swapper/100:33:471
5483992410,8cyclictest0-21swapper/120:23:341
5482992424,0cyclictest0-21swapper/000:14:050
5482992410,2cyclictest0-21swapper/021:14:450
5483992323,0cyclictest0-21swapper/123:12:171
5483992323,0cyclictest0-21swapper/119:18:421
5483992322,1cyclictest15900-21munin-node20:23:191
5483992317,3cyclictest6528-21apache200:22:361
5483992316,6cyclictest6546-21apache221:21:211
5483992310,7cyclictest0-21swapper/100:10:211
5483992310,3cyclictest0-21swapper/121:33:331
5483992310,3cyclictest0-21swapper/121:33:331
5482992320,2cyclictest599-21avahi-daemon20:16:480
5482992319,3cyclictest6528-21apache223:28:370
5482992319,2cyclictest6546-21apache219:56:510
5482992318,4cyclictest802-21apache221:46:400
5482992311,4cyclictest0-21swapper/000:33:380
548399223,4cyclictest0-21swapper/122:27:441
5483992220,1cyclictest6528-21apache200:04:251
5483992218,2cyclictest6546-21apache221:04:401
5482992220,1cyclictest0-21swapper/022:29:290
5482992215,6cyclictest0-21swapper/022:12:270
5482992210,4cyclictest0-21swapper/019:23:210
548299220,16cyclictest100450irq/109-eth1-tx23:00:170
548399212,18cyclictest0-21swapper/122:30:491
5483992121,0cyclictest0-21swapper/123:58:481
5483992119,1cyclictest636-21nscd21:23:351
548399210,7cyclictest0-21swapper/122:08:341
548299214,14cyclictest0-21swapper/023:58:390
548299214,10cyclictest0-21swapper/022:43:420
548299212,4cyclictest0-21swapper/021:19:520
5482992120,0cyclictest6528-21apache220:18:460
5482992113,6cyclictest0-21swapper/019:58:380
5482992113,4cyclictest0-21swapper/000:07:250
5482992110,5cyclictest6546-21apache220:23:220
5482992110,0cyclictest0-21swapper/021:24:450
5482992110,0cyclictest0-21swapper/019:28:210
548399204,6cyclictest0-21swapper/121:12:561
548399204,11cyclictest0-21swapper/119:28:361
5483992019,1cyclictest947-21sendmail-mta21:17:141
5483992013,3cyclictest231ktimersoftd/123:25:001
5483992010,7cyclictest0-21swapper/120:58:311
5483992010,6cyclictest0-21swapper/123:19:441
5483992010,3cyclictest0-21swapper/121:40:191
548299206,6cyclictest167-21systemd-journal20:38:200
5482992015,3cyclictest6546-21apache223:45:380
548299201,12cyclictest0-21swapper/019:38:370
5482992010,6cyclictest0-21swapper/021:53:410
5482992010,5cyclictest0-21swapper/019:48:360
5482992010,4cyclictest0-21swapper/023:49:200
5482992010,3cyclictest0-21swapper/023:20:470
1116922010,0sleep10-21swapper/120:45:381
548399193,11cyclictest0-21swapper/123:13:341
5483991910,7cyclictest0-21swapper/123:53:341
5483991910,5cyclictest0-21swapper/100:29:001
5483991910,3cyclictest0-21swapper/122:45:201
5483991910,3cyclictest0-21swapper/119:27:071
5483991910,0cyclictest0-21swapper/121:55:011
548299195,11cyclictest0-21swapper/000:28:310
548299194,9cyclictest28785-21munin-run22:03:200
548299194,4cyclictest4693-21cron23:43:210
548299193,11cyclictest0-21swapper/019:08:350
5482991919,0cyclictest0-21swapper/023:28:190
5482991919,0cyclictest0-21swapper/023:08:340
548299191,4cyclictest0-21swapper/022:04:390
5482991910,4cyclictest0-21swapper/020:28:390
5482991910,2cyclictest0-21swapper/000:20:120
548299190,2cyclictest0-21swapper/023:33:320
248521910,0sleep10-21swapper/122:57:171
2037121910,0sleep10-21swapper/121:51:301
887621810,0sleep00-21swapper/019:14:500
548399185,4cyclictest1199-21runrttasks19:13:331
548399183,7cyclictest0-21swapper/120:38:321
548399181,3cyclictest0-21swapper/122:20:181
548399181,10cyclictest0-21swapper/120:08:371
5483991810,6cyclictest0-21swapper/122:38:361
5483991810,5cyclictest0-21swapper/120:34:191
5483991810,5cyclictest0-21swapper/119:43:381
5483991810,5cyclictest0-21swapper/119:33:331
548299186,5cyclictest14986-21cron19:33:210
548299184,7cyclictest0-21swapper/023:13:390
5482991817,0cyclictest81ktimersoftd/021:11:400
5482991810,6cyclictest0-21swapper/021:33:440
5482991810,6cyclictest0-21swapper/021:33:440
5482991810,5cyclictest0-21swapper/000:11:380
5482991810,3cyclictest0-21swapper/021:03:440
5482991810,1cyclictest0-21swapper/020:58:410
5482991810,0cyclictest0-21swapper/022:50:390
2771221810,0sleep10-21swapper/123:29:481
131962188,0sleep10-21swapper/120:51:471
548399172,8cyclictest0-21swapper/119:38:331
5483991711,1cyclictest2066-21ssh00:24:131
5483991710,4cyclictest100250irq/107-eth1-rx21:58:251
5483991710,3cyclictest0-21swapper/119:58:321
5483991710,2cyclictest0-21swapper/120:14:481
548299179,7cyclictest0-21swapper/022:38:300
548299173,5cyclictest28586-21apache_volume20:08:330
548299171,4cyclictest0-21swapper/021:41:090
5482991711,3cyclictest81ktimersoftd/000:28:070
5482991710,4cyclictest0-21swapper/021:31:440
5483991613,0cyclictest0-21swapper/119:57:091
5483991610,1cyclictest0-21swapper/120:28:381
5482991610,3cyclictest0-21swapper/019:33:330
5482991610,1cyclictest0-21swapper/019:43:340
5483991513,2cyclictest0-21swapper/120:03:351
5483991510,1cyclictest0-21swapper/119:08:371
548299151,8cyclictest0-21swapper/020:48:380
5482991510,5cyclictest0-21swapper/020:43:320
5482991510,5cyclictest0-21swapper/020:07:380
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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