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2026-08-14 - 13:31
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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 Fri Aug 14, 2026 00:43:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1869927258,9sleep10-21swapper/119:07:501
1834427252,8sleep00-21swapper/019:04:080
18912994310,21cyclictest0-21swapper/121:23:301
18912994210,31cyclictest0-21swapper/121:14:331
18912994210,28cyclictest0-21swapper/122:58:291
18912994110,30cyclictest0-21swapper/100:03:241
18912994110,30cyclictest0-21swapper/100:01:211
18912993912,26cyclictest0-21swapper/122:26:461
18912993912,26cyclictest0-21swapper/120:23:081
18912993910,28cyclictest0-21swapper/122:54:211
18912993910,28cyclictest0-21swapper/122:03:111
18912993810,28cyclictest0-21swapper/123:43:301
18912993810,27cyclictest0-21swapper/123:07:051
18912993810,27cyclictest0-21swapper/122:42:251
18912993810,27cyclictest0-21swapper/120:58:261
18912993810,27cyclictest0-21swapper/120:35:291
18912993810,27cyclictest0-21swapper/119:38:261
18912993810,25cyclictest0-21swapper/100:26:141
18912993710,27cyclictest0-21swapper/121:21:341
18912993710,26cyclictest0-21swapper/123:11:051
18912993710,26cyclictest0-21swapper/121:30:411
18912993710,26cyclictest0-21swapper/119:44:341
18912993710,26cyclictest0-21swapper/100:29:491
18912993618,18cyclictest0-21swapper/122:10:521
18912993616,19cyclictest0-21swapper/123:57:441
18912993610,26cyclictest0-21swapper/123:38:281
18912993610,25cyclictest0-21swapper/123:27:531
18912993610,25cyclictest0-21swapper/119:58:451
18912993610,22cyclictest0-21swapper/123:13:321
18912993610,21cyclictest0-21swapper/100:14:551
18912993610,20cyclictest0-21swapper/121:04:461
18912993510,3cyclictest0-21swapper/123:51:001
18912993510,24cyclictest0-21swapper/100:35:351
18912993510,18cyclictest0-21swapper/120:48:451
18912993510,13cyclictest0-21swapper/122:01:381
18912993414,19cyclictest0-21swapper/122:15:471
18912993410,23cyclictest0-21swapper/121:42:201
18912993410,23cyclictest0-21swapper/121:35:531
18912993410,22cyclictest0-21swapper/120:13:301
18912993410,21cyclictest0-21swapper/121:43:531
1891299340,7cyclictest0-21swapper/122:20:381
18912993310,3cyclictest0-21swapper/122:47:041
18912993310,23cyclictest0-21swapper/122:33:241
18912993310,23cyclictest0-21swapper/120:23:281
18912993310,22cyclictest3535-21pidof19:51:311
18912993310,22cyclictest0-21swapper/123:30:181
18912993310,22cyclictest0-21swapper/100:22:491
1891299330,2cyclictest29205-21/usr/sbin/munin19:33:261
1891299321,6cyclictest0-21swapper/122:28:271
18912993210,2cyclictest0-21swapper/120:08:341
18912993210,22cyclictest0-21swapper/119:10:301
18912993210,21cyclictest0-21swapper/123:34:391
18912993210,21cyclictest0-21swapper/123:20:331
18912993110,4cyclictest0-21swapper/122:52:581
18912993110,18cyclictest0-21swapper/121:08:281
1891299301,5cyclictest8787-21timerandwakeup20:03:261
18912993010,3cyclictest0-21swapper/120:46:011
18912993010,19cyclictest0-21swapper/120:38:191
18912992910,8cyclictest0-21swapper/119:55:441
18912992810,7cyclictest0-21swapper/100:10:141
18912992810,2cyclictest0-21swapper/120:32:011
18912992810,18cyclictest0-21swapper/121:48:521
18912992810,16cyclictest0-21swapper/119:24:561
18912992710,16cyclictest0-21swapper/121:53:331
1891199260,3cyclictest0-21swapper/022:42:400
1891299253,21cyclictest0-21swapper/119:28:261
18912992510,12cyclictest0-21swapper/120:56:001
18911992512,6cyclictest0-21swapper/022:28:240
18911992510,6cyclictest0-21swapper/021:50:380
1891199250,20cyclictest0-21swapper/000:16:470
1891299242,21cyclictest0-21swapper/119:13:231
18911992413,5cyclictest21124-1kworker/u5:021:39:520
18911992410,6cyclictest0-21swapper/020:58:190
18912992310,7cyclictest0-21swapper/119:18:201
1891199232,3cyclictest0-21swapper/021:35:280
18911992322,1cyclictest0-21swapper/020:14:130
18911992321,1cyclictest0-21swapper/019:32:360
18911992318,4cyclictest1199-21runrttasks22:56:280
18911992318,4cyclictest0-21swapper/000:33:050
18911992311,6cyclictest0-21swapper/020:18:200
18911992310,4cyclictest0-21swapper/023:03:250
18911992310,3cyclictest0-21swapper/021:53:310
1891199230,0cyclictest0-21swapper/022:01:280
1891199224,12cyclictest0-21swapper/023:43:290
18911992221,1cyclictest32455-21apache200:25:570
18911992219,2cyclictest32455-21apache222:35:030
18911992210,8cyclictest0-21swapper/021:03:230
18911992210,7cyclictest0-21swapper/023:28:160
18911992210,6cyclictest0-21swapper/019:08:270
18911992210,5cyclictest0-21swapper/019:38:450
18911992210,2cyclictest0-21swapper/021:23:300
18911992210,1cyclictest0-21swapper/000:13:040
1891199220,1cyclictest316-21apache_volume21:08:220
18911992120,1cyclictest0-21swapper/022:50:590
18911992118,2cyclictest7-21ksoftirqd/000:08:100
18911992117,3cyclictest32426-21apache223:16:000
18911992115,4cyclictest7-21ksoftirqd/020:33:100
18911992110,6cyclictest0-21swapper/019:16:110
18911992110,4cyclictest0-21swapper/023:48:200
18911992110,4cyclictest0-21swapper/021:43:190
18911992110,3cyclictest0-21swapper/019:53:250
1891199210,3cyclictest0-21swapper/022:06:300
1891199210,20cyclictest18627-21sed21:33:090
1891199210,0cyclictest0-21swapper/000:35:260
1891199205,10cyclictest0-21swapper/020:53:270
1891199204,5cyclictest24698-21/usr/sbin/munin19:23:210
18911992015,3cyclictest32455-21apache222:15:140
18911992013,4cyclictest7075-21ssh22:47:490
18911992010,5cyclictest0-21swapper/023:09:040
18911992010,4cyclictest6547-21awk19:58:270
18911992010,3cyclictest0-21swapper/023:53:250
18911992010,3cyclictest0-21swapper/022:59:210
1891199200,8cyclictest0-21swapper/022:08:260
2119621910,0sleep00-21swapper/022:21:310
1891199197,6cyclictest0-21swapper/023:23:200
1891199193,7cyclictest9188-21/usr/sbin/munin21:18:310
18911991910,6cyclictest0-21swapper/019:20:110
18911991910,3cyclictest0-21swapper/019:53:090
18911991910,0cyclictest0-21swapper/023:19:570
1891199190,2cyclictest0-21swapper/023:35:580
1891199187,6cyclictest0-21swapper/020:33:270
1891199184,7cyclictest0-21swapper/023:38:260
1891199182,9cyclictest4430-21/usr/sbin/munin21:13:230
1891199182,13cyclictest0-21swapper/000:18:210
18911991810,5cyclictest0-21swapper/020:48:260
18911991810,4cyclictest0-21swapper/020:38:280
18911991810,3cyclictest0-21swapper/023:58:410
1891199180,3cyclictest0-21swapper/020:23:260
1125221810,0sleep00-21swapper/020:12:030
1891199172,9cyclictest0-21swapper/020:43:250
18911991710,1cyclictest0-21swapper/022:23:460
1891199165,5cyclictest0-21swapper/019:33:230
1891199163,6cyclictest618-21load19:43:250
1891199150,7cyclictest8659-21awk20:03:250
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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