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2026-05-18 - 19:09
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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 792 highest latencies:
System rackcslot2.osadl.org (updated Mon May 18, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1763726856,8sleep10-21swapper/107:04:251
1777526552,8sleep00-21swapper/007:05:500
18254993310,22cyclictest0-21swapper/109:16:141
18253993110,16cyclictest0-21swapper/010:26:150
18254993020,4cyclictest24-21ksoftirqd/107:09:131
18253993010,18cyclictest0-21swapper/011:12:470
18254992910,7cyclictest0-21swapper/109:04:071
18254992721,5cyclictest28160-21apache210:08:381
18254992711,10cyclictest100350irq/108-eth1-tx12:17:211
1825399272,24cyclictest0-21swapper/009:59:120
18254992622,3cyclictest28136-21apache209:09:161
18254992620,5cyclictest28136-21apache211:33:331
18253992610,16cyclictest0-21swapper/011:07:120
1543122610,3sleep00-21swapper/011:36:090
18254992524,1cyclictest0-21swapper/111:37:511
18254992523,1cyclictest24-21ksoftirqd/110:50:511
18254992510,7cyclictest0-21swapper/109:49:331
18253992523,1cyclictest0-21swapper/012:33:360
1825399251,23cyclictest0-21swapper/011:03:090
18253992510,6cyclictest0-21swapper/011:27:390
18253992510,0cyclictest0-21swapper/012:03:560
18254992410,13cyclictest0-21swapper/110:48:011
18254992410,12cyclictest0-21swapper/109:26:491
18253992417,5cyclictest7578-21ssh10:43:470
18253992416,6cyclictest28160-21apache209:26:260
1825399241,22cyclictest0-21swapper/009:14:420
1825499232,7cyclictest20733-21ssh09:34:141
18254992321,1cyclictest24-21ksoftirqd/112:24:101
18254992320,1cyclictest0-21swapper/110:55:561
1825499231,1cyclictest0-21swapper/108:14:321
18254992310,11cyclictest0-21swapper/109:47:521
18253992323,0cyclictest0-21swapper/008:14:020
18253992319,1cyclictest0-21swapper/009:42:320
18253992318,5cyclictest0-21swapper/007:42:280
18253992311,4cyclictest100450irq/109-eth1-tx11:21:010
18253992310,6cyclictest0-21swapper/009:54:130
1825399230,1cyclictest0-21swapper/012:12:480
1825399230,13cyclictest0-21swapper/008:19:110
1825499222,1cyclictest26618-21users10:24:151
1825499222,19cyclictest23660-21ssh11:47:471
18254992221,1cyclictest28136-21apache211:52:081
18254992220,1cyclictest24-21ksoftirqd/110:33:541
18254992210,8cyclictest0-21swapper/111:01:361
18254992210,4cyclictest0-21swapper/110:43:301
18254992210,4cyclictest0-21swapper/107:30:321
18254992210,10cyclictest0-21swapper/111:28:201
18253992221,1cyclictest0-21swapper/007:21:020
1825399222,0cyclictest10401-21ls08:09:160
18253992216,5cyclictest28136-21apache210:44:130
18253992212,4cyclictest0-21swapper/010:49:120
18253992210,7cyclictest0-21swapper/010:31:140
18253992210,3cyclictest0-21swapper/010:57:590
1825399220,2cyclictest0-21swapper/010:38:200
1825499216,7cyclictest0-21swapper/108:54:081
18254992119,1cyclictest24-21ksoftirqd/110:34:451
1825499211,6cyclictest0-21swapper/108:29:061
18254992113,5cyclictest23168-21awk07:19:141
18254992111,6cyclictest28160-21apache212:21:301
18254992110,4cyclictest0-21swapper/112:04:261
18254992110,4cyclictest0-21swapper/111:55:311
18254992110,4cyclictest0-21swapper/111:39:321
18254992110,3cyclictest0-21swapper/112:12:351
1825499210,12cyclictest32189-21diskmemload12:29:111
1825399219,7cyclictest19188-21ssh10:14:360
1825399218,9cyclictest0-21swapper/012:34:170
1825399211,11cyclictest28943-21/usr/sbin/munin07:34:120
18253992110,6cyclictest0-21swapper/008:54:130
18253992110,5cyclictest0-21swapper/010:04:080
18253992110,2cyclictest0-21swapper/009:22:240
1825399210,12cyclictest0-21swapper/009:29:090
1825399210,12cyclictest0-21swapper/009:29:090
332422010,2sleep10-21swapper/111:19:151
1825499206,10cyclictest0-21swapper/108:59:111
1825499204,9cyclictest0-21swapper/108:52:061
18254992019,1cyclictest0-21swapper/107:34:131
18254992018,1cyclictest24-21ksoftirqd/111:04:481
18254992014,2cyclictest18251-21cyclictest11:14:351
1825499201,16cyclictest0-21swapper/107:49:081
18254992011,5cyclictest0-21swapper/109:58:201
18254992010,5cyclictest100150irq/106-eth1-rx11:12:331
18254992010,5cyclictest0-21swapper/108:09:141
18254992010,3cyclictest0-21swapper/112:34:401
18254992010,3cyclictest0-21swapper/109:59:111
1825399206,10cyclictest0-21swapper/007:14:110
1825399203,8cyclictest0-21swapper/011:54:090
18253992019,1cyclictest28136-21apache212:21:590
18253992012,6cyclictest23558-21ssh10:20:350
18253992010,7cyclictest0-21swapper/011:52:400
18253992010,3cyclictest0-21swapper/012:14:360
18253992010,3cyclictest0-21swapper/009:34:000
1825499193,11cyclictest0-21swapper/110:19:071
18254991918,1cyclictest24-21ksoftirqd/107:24:081
18254991917,1cyclictest24-21ksoftirqd/108:44:391
1825499191,13cyclictest0-21swapper/109:29:111
1825499191,13cyclictest0-21swapper/109:29:111
18254991910,6cyclictest0-21swapper/110:11:231
18254991910,1cyclictest0-21swapper/109:19:051
1825399195,9cyclictest0-21swapper/010:09:060
1825399195,6cyclictest0-21swapper/008:04:120
1825399194,13cyclictest0-21swapper/012:24:150
18253991918,1cyclictest28136-21apache211:15:560
18253991917,1cyclictest28136-21apache209:49:020
18253991910,9cyclictest0-21swapper/007:33:040
18253991910,5cyclictest0-21swapper/008:44:080
18253991910,5cyclictest0-21swapper/008:34:290
145921910,0sleep10-21swapper/112:00:101
1825499186,9cyclictest0-21swapper/107:59:111
1825499185,7cyclictest0-21swapper/108:19:101
1825499184,9cyclictest0-21swapper/107:39:091
18254991815,2cyclictest18251-21cyclictest08:06:241
18254991810,7cyclictest28136-21apache210:14:141
18254991810,4cyclictest0-21swapper/107:54:031
1825499180,8cyclictest0-21swapper/108:24:141
1825399185,7cyclictest0-21swapper/008:39:080
1825399182,7cyclictest32281-21df07:44:070
18253991818,0cyclictest18251-21cyclictest07:51:110
18253991810,5cyclictest100150irq/106-eth1-rx11:59:300
18253991810,2cyclictest0-21swapper/008:49:090
18253991810,0cyclictest0-21swapper/011:31:560
18253991810,0cyclictest0-21swapper/009:12:290
1825499173,6cyclictest21016-21/usr/sbin/munin07:14:121
18254991713,2cyclictest24-21ksoftirqd/108:39:061
18254991710,4cyclictest0-21swapper/107:45:581
1825399174,6cyclictest0-21swapper/007:59:160
1825399172,11cyclictest0-21swapper/011:39:050
1825399172,10cyclictest0-21swapper/009:46:520
1825399171,11cyclictest0-21swapper/007:24:110
2290021610,0sleep00-21swapper/011:46:110
1825499164,9cyclictest0-21swapper/108:34:131
18254991616,0cyclictest18251-21cyclictest09:39:351
1825399164,8cyclictest0-21swapper/008:59:060
18253991614,1cyclictest18273-21/usr/sbin/munin07:09:090
18253991610,3cyclictest0-21swapper/007:56:340
18253991610,2cyclictest0-21swapper/009:04:160
1825399153,6cyclictest0-21swapper/008:24:140
18253991410,1cyclictest0-21swapper/008:29:040
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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