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2026-04-05 - 13:08
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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 Sun Apr 05, 2026 00:43:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1729626947,17sleep10-21swapper/119:04:311
72432660,0sleep10-21swapper/120:04:141
1838126654,8sleep00-21swapper/019:09:020
68022650,0sleep10-21swapper/123:32:511
308982540,0sleep10-21swapper/119:39:311
18582993410,0cyclictest0-21swapper/021:59:230
18582993110,17cyclictest0-21swapper/022:38:480
18582993029,0cyclictest7-21ksoftirqd/023:24:140
1858299300,29cyclictest0-21swapper/021:03:040
18583992927,1cyclictest0-21swapper/100:01:091
18582992910,5cyclictest0-21swapper/023:40:350
18582992810,1cyclictest0-21swapper/022:27:100
18582992810,1cyclictest0-21swapper/021:33:500
18582992810,0cyclictest0-21swapper/019:41:300
18583992716,10cyclictest19824-21apache223:02:391
18583992710,9cyclictest0-21swapper/122:44:261
18582992718,6cyclictest19824-21apache219:27:170
1858299271,21cyclictest0-21swapper/022:47:400
18582992710,0cyclictest0-21swapper/000:36:390
1858399262,23cyclictest21928-21kworker/1:122:49:331
18583992617,1cyclictest18580-21cyclictest23:51:471
18583992610,14cyclictest0-21swapper/123:40:591
18582992510,6cyclictest0-21swapper/021:22:560
1858299250,0cyclictest0-21swapper/023:13:040
18583992424,0cyclictest0-21swapper/120:07:061
18583992421,2cyclictest13752-21ssh00:27:461
18583992411,12cyclictest100350irq/108-eth1-tx21:27:121
18583992410,8cyclictest0-21swapper/119:09:291
18583992410,7cyclictest0-21swapper/120:59:321
18583992410,5cyclictest0-21swapper/122:07:261
18583992410,1cyclictest0-21swapper/121:50:351
18583992410,10cyclictest0-21swapper/121:44:251
18582992414,6cyclictest8912-21users23:34:340
18582992410,10cyclictest0-21swapper/019:44:270
1858299240,2cyclictest0-21swapper/023:47:560
18583992316,3cyclictest231ktimersoftd/122:28:141
18583992315,6cyclictest19824-21apache223:23:161
18583992315,6cyclictest19798-21apache221:43:091
18583992310,12cyclictest0-21swapper/123:17:031
1858299233,5cyclictest100250irq/107-eth1-rx21:34:260
1858299232,12cyclictest7729-21smartctl20:04:290
18582992319,3cyclictest0-21swapper/000:24:540
18582992315,8cyclictest0-21swapper/021:24:240
18582992313,8cyclictest19824-21apache222:22:470
18582992313,8cyclictest19824-21apache222:22:470
1858299231,21cyclictest20072-21ssh23:49:580
18582992310,6cyclictest0-21swapper/022:59:260
18582992310,6cyclictest0-21swapper/019:29:310
2219022210,0sleep10-21swapper/119:17:591
1858399228,8cyclictest10923-21seq20:13:131
18583992219,2cyclictest19798-21apache221:12:201
18583992218,3cyclictest0-21swapper/123:11:331
18583992217,4cyclictest19798-21apache200:08:381
18583992212,2cyclictest400-21cpu23:24:261
18583992210,5cyclictest0-21swapper/119:19:251
1858399220,4cyclictest32198-21diskmemload22:34:481
1858299229,11cyclictest0-21swapper/000:11:560
1858299223,1cyclictest4648-21/usr/sbin/munin23:29:300
1858299222,3cyclictest0-21swapper/021:50:130
18582992222,0cyclictest0-21swapper/019:54:500
18582992216,5cyclictest19824-21apache222:50:500
18582992210,5cyclictest0-21swapper/000:14:320
1858299220,4cyclictest0-21swapper/022:41:470
1858299220,2cyclictest0-21swapper/000:23:280
1858399214,11cyclictest0-21swapper/119:34:271
1858399214,10cyclictest1199-21runrttasks22:10:551
18583992118,1cyclictest0-21swapper/122:19:341
18583992118,1cyclictest0-21swapper/122:19:341
18583992116,2cyclictest24-21ksoftirqd/122:54:331
18583992114,4cyclictest19824-21apache221:31:481
18583992110,6cyclictest0-21swapper/122:00:451
18583992110,3cyclictest0-21swapper/100:34:141
18583992110,0cyclictest0-21swapper/121:18:211
1858399210,10cyclictest1616-21taskset00:09:491
1858299215,10cyclictest0-21swapper/023:59:310
18582992120,0cyclictest0-21swapper/020:29:320
18582992119,1cyclictest19798-21apache222:17:440
18582992119,1cyclictest0-21swapper/022:12:000
1858299211,1cyclictest0-21swapper/023:24:480
18582992111,3cyclictest0-21swapper/000:31:010
18582992110,6cyclictest0-21swapper/021:17:460
18582992110,6cyclictest0-21swapper/020:49:260
18582992110,5cyclictest0-21swapper/022:29:350
18582992110,3cyclictest0-21swapper/022:55:100
18582992110,1cyclictest0-21swapper/023:55:500
18582992110,1cyclictest0-21swapper/023:06:290
1858299210,21cyclictest0-21swapper/020:47:320
945722010,0sleep10-21swapper/123:35:571
1858399205,11cyclictest0-21swapper/120:34:291
1858399201,5cyclictest32198-21diskmemload22:29:251
18583992010,6cyclictest100250irq/107-eth1-rx23:07:391
18583992010,6cyclictest0-21swapper/120:53:381
18583992010,5cyclictest0-21swapper/123:54:261
18583992010,5cyclictest0-21swapper/120:39:241
18583992010,3cyclictest0-21swapper/122:43:461
1858399200,16cyclictest7912-21df_inode21:19:271
1858299208,6cyclictest100450irq/109-eth1-tx20:54:270
18582992020,0cyclictest0-21swapper/019:49:470
18582992015,4cyclictest0-21swapper/020:44:040
18582992010,5cyclictest0-21swapper/000:04:270
18582992010,1cyclictest0-21swapper/022:04:250
18582992010,1cyclictest0-21swapper/019:09:240
1858299200,16cyclictest0-21swapper/021:09:280
2758421910,0sleep00-21swapper/023:15:340
1858399196,8cyclictest21928-21kworker/1:122:14:261
1858399195,8cyclictest0-21swapper/119:44:251
18583991918,1cyclictest231ktimersoftd/123:48:001
18583991915,3cyclictest24-21ksoftirqd/100:14:261
18583991914,3cyclictest18580-21cyclictest19:24:271
18583991912,6cyclictest19798-21apache200:31:341
18583991910,6cyclictest0-21swapper/120:58:171
18583991910,3cyclictest0-21swapper/120:14:291
18582991919,0cyclictest19824-21apache221:44:280
18582991918,1cyclictest19824-21apache220:26:590
18582991918,0cyclictest1199-21runrttasks19:16:160
18582991915,3cyclictest19824-21apache221:39:280
18582991914,3cyclictest0-21swapper/020:03:540
1858299190,18cyclictest501-21apache_processe21:54:250
1858399184,7cyclictest0-21swapper/121:36:371
1858399184,10cyclictest0-21swapper/100:20:041
1858399182,5cyclictest0-21swapper/119:29:331
18583991810,3cyclictest0-21swapper/119:50:431
18583991810,1cyclictest0-21swapper/119:57:381
18583991810,0cyclictest0-21swapper/121:07:091
1858299188,8cyclictest0-21swapper/020:19:250
1858299183,9cyclictest0-21swapper/020:14:250
18582991818,0cyclictest19824-21apache219:19:260
18582991810,5cyclictest0-21swapper/019:35:440
18582991810,2cyclictest0-21swapper/020:09:270
2421721710,0sleep10-21swapper/120:46:141
1858399171,8cyclictest0-21swapper/120:29:321
18583991715,1cyclictest148532sleep120:24:051
18583991710,3cyclictest0-21swapper/120:28:391
1858399166,5cyclictest0-21swapper/121:54:281
18582991610,6cyclictest0-21swapper/021:05:440
18582991510,3cyclictest0-21swapper/020:38:380
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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