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2026-08-06 - 13:50
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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 highest latencies:
System rackcslot2.osadl.org (updated Thu Aug 06, 2026 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3080427555,8sleep00-21swapper/019:05:390
3102326957,8sleep10-21swapper/119:07:571
14302650,0sleep00-21swapper/021:34:490
31235993910,0cyclictest0-21swapper/122:07:001
3123599361,16cyclictest0-21swapper/122:13:301
31234993620,16cyclictest0-21swapper/020:51:010
31234993522,13cyclictest0-21swapper/020:57:090
31234993510,2cyclictest0-21swapper/000:31:100
31235993410,24cyclictest0-21swapper/121:37:481
31235993410,23cyclictest0-21swapper/122:56:321
31235993224,7cyclictest231ktimersoftd/121:03:331
31234993223,8cyclictest0-21swapper/020:02:350
31234993010,13cyclictest0-21swapper/022:31:560
31234992926,2cyclictest30809-21ssh21:31:370
31234992919,10cyclictest0-21swapper/021:00:410
3123599280,24cyclictest0-21swapper/123:55:521
3123499281,23cyclictest0-21swapper/022:17:410
31234992810,13cyclictest0-21swapper/021:43:010
31235992723,2cyclictest0-21swapper/121:53:091
31235992722,5cyclictest24159-21apache221:10:301
3123599270,1cyclictest16619-21/usr/sbin/munin21:13:291
31234992715,5cyclictest6920-21sh22:25:140
3123599266,11cyclictest0-21swapper/119:13:271
31235992626,0cyclictest0-21swapper/119:38:101
3123499260,25cyclictest0-21swapper/019:19:170
3123499260,24cyclictest0-21swapper/023:33:020
31234992523,1cyclictest0-21swapper/021:13:350
3123499250,24cyclictest0-21swapper/000:19:450
3123599245,12cyclictest5431-21users23:48:331
31235992419,2cyclictest705-21ntpd23:22:431
31235992414,7cyclictest6796-21cron21:43:141
3123599240,10cyclictest0-21swapper/123:12:351
31234992416,2cyclictest0-21swapper/022:42:410
31234992410,4cyclictest0-21swapper/000:27:410
31235992323,0cyclictest0-21swapper/100:18:591
31235992310,5cyclictest0-21swapper/100:23:521
31234992320,2cyclictest29566-21ssh22:55:250
3123599227,9cyclictest24139-21apache222:43:261
3123599227,6cyclictest7357-21/usr/sbin/munin20:53:301
3123599227,11cyclictest0-21swapper/120:38:261
3123599226,9cyclictest0-21swapper/120:58:231
31235992222,0cyclictest0-21swapper/119:59:261
31235992220,1cyclictest0-21swapper/121:46:581
31235992218,3cyclictest17151-21sshd00:04:201
31235992210,9cyclictest0-21swapper/100:08:531
3123599220,1cyclictest0-21swapper/123:58:341
3123499222,14cyclictest0-21swapper/019:13:270
31234992221,1cyclictest24159-21apache221:20:000
31234992211,6cyclictest0-21swapper/022:11:010
1417922210,0sleep00-21swapper/022:34:290
31235992120,1cyclictest24159-21apache222:26:171
31235992118,2cyclictest705-21ntpd19:23:381
31235992118,1cyclictest705-21ntpd22:19:461
31235992113,7cyclictest100250irq/107-eth1-rx00:31:431
31235992110,6cyclictest0-21swapper/120:33:291
31235992110,5cyclictest0-21swapper/122:33:311
31235992110,2cyclictest0-21swapper/123:03:291
3123499216,11cyclictest0-21swapper/020:28:240
31234992121,0cyclictest0-21swapper/023:53:130
31234992119,1cyclictest0-21swapper/000:09:490
31234992117,2cyclictest81ktimersoftd/023:03:260
3123499211,16cyclictest27546-21ls20:23:130
31234992110,7cyclictest0-21swapper/023:58:290
31234992110,6cyclictest0-21swapper/021:57:310
3123499210,19cyclictest0-21swapper/019:39:530
1073622110,0sleep00-21swapper/023:57:080
31235992019,1cyclictest0-21swapper/123:42:081
31235992018,1cyclictest100450irq/109-eth1-tx21:58:311
31235992012,3cyclictest31232-21cyclictest23:30:311
31235992010,7cyclictest0-21swapper/121:29:021
31235992010,7cyclictest0-21swapper/119:43:291
31235992010,5cyclictest0-21swapper/119:48:271
31235992010,1cyclictest0-21swapper/123:26:521
3123499206,14cyclictest0-21swapper/000:16:170
3123499202,12cyclictest13538-21runrttasks21:51:160
31234992016,4cyclictest0-21swapper/023:00:210
31234992016,3cyclictest0-21swapper/000:03:360
31234992011,4cyclictest100450irq/109-eth1-tx21:46:000
31234992010,8cyclictest0-21swapper/020:47:000
3123499200,12cyclictest0-21swapper/023:33:250
3123599196,6cyclictest0-21swapper/120:28:271
31235991916,3cyclictest0-21swapper/122:49:181
31235991911,2cyclictest12430-21diskmemload21:26:091
31235991911,2cyclictest0-21swapper/121:18:371
31235991910,4cyclictest0-21swapper/120:03:371
31235991910,3cyclictest0-21swapper/100:33:311
31235991910,2cyclictest0-21swapper/100:15:341
3123499197,7cyclictest0-21swapper/021:23:340
31234991910,7cyclictest100250irq/107-eth1-rx22:08:020
31234991910,5cyclictest0-21swapper/023:38:260
31234991910,5cyclictest0-21swapper/022:03:030
31234991910,4cyclictest0-21swapper/023:43:230
31234991910,4cyclictest0-21swapper/020:33:240
31234991910,3cyclictest0-21swapper/023:20:360
31234991910,2cyclictest0-21swapper/021:12:300
2103721910,0sleep00-21swapper/023:27:580
3123599183,6cyclictest0-21swapper/123:16:011
3123599181,6cyclictest0-21swapper/119:08:251
31235991815,2cyclictest31232-21cyclictest21:55:561
31235991810,4cyclictest0-21swapper/123:43:411
31235991810,4cyclictest0-21swapper/122:28:161
31235991810,3cyclictest0-21swapper/119:18:241
3123499184,7cyclictest0-21swapper/019:08:320
3123499182,10cyclictest0-21swapper/020:08:330
31234991816,1cyclictest9585-21ls19:33:320
31234991812,3cyclictest45-21kswapd023:13:140
31234991810,4cyclictest0-21swapper/023:13:590
31234991810,4cyclictest0-21swapper/019:48:350
31234991810,4cyclictest0-21swapper/000:33:260
2725121810,0sleep10-21swapper/120:20:231
2115821810,0sleep00-21swapper/022:43:410
3123599172,9cyclictest0-21swapper/120:13:301
31235991711,4cyclictest802-21apache220:50:451
31235991711,3cyclictest24139-21apache219:53:381
31235991710,4cyclictest0-21swapper/122:41:541
3123599170,8cyclictest12430-21diskmemload22:08:251
3123499173,4cyclictest1480-21/usr/sbin/munin20:38:270
3123499171,9cyclictest0-21swapper/022:48:260
31234991710,3cyclictest0-21swapper/022:22:200
31234991710,2cyclictest0-21swapper/019:28:240
31235991616,0cyclictest0-21swapper/119:32:141
31235991610,4cyclictest0-21swapper/123:37:191
31234991612,4cyclictest0-21swapper/020:17:090
31234991610,6cyclictest0-21swapper/021:04:510
31234991610,4cyclictest0-21swapper/019:55:130
31234991610,0cyclictest0-21swapper/019:23:150
3123599151,9cyclictest0-21swapper/120:23:251
31235991513,1cyclictest231ktimersoftd/120:08:331
31235991510,2cyclictest231ktimersoftd/122:58:251
31234991510,2cyclictest0-21swapper/019:43:200
31234991510,1cyclictest0-21swapper/020:23:300
31235991412,1cyclictest231ktimersoftd/119:38:301
31234991410,1cyclictest0-21swapper/020:07:590
3123599130,5cyclictest2983-21/usr/sbin/munin20:43:241
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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