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2025-10-20 - 07:30
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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 all highest latencies:
System rackcslot2.osadl.org (updated Mon Oct 20, 2025 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
94592720,0sleep10-21swapper/100:23:211
934727158,8sleep10-21swapper/119:03:571
931026855,8sleep00-21swapper/019:03:360
9819992910,5cyclictest0-21swapper/123:03:121
9819992723,1cyclictest0-21swapper/123:10:451
9818992727,0cyclictest0-21swapper/023:05:430
981899270,4cyclictest2076-21kworker/u4:121:52:210
9819992620,6cyclictest23570-21snmpd19:55:041
9819992611,5cyclictest0-21swapper/122:22:271
9819992610,13cyclictest0-21swapper/122:47:301
9819992510,9cyclictest97850irq/107-eth1-rx00:29:321
9818992520,4cyclictest12795-21apache221:33:190
9818992518,3cyclictest12795-21apache223:09:430
9818992510,7cyclictest0-21swapper/022:34:260
9818992510,11cyclictest0-21swapper/023:29:210
9819992411,7cyclictest23459-21diskmemload22:13:081
9819992410,14cyclictest0-21swapper/122:30:121
9819992410,12cyclictest0-21swapper/123:13:171
981999240,2cyclictest4029-21apache_accesses00:17:121
981999240,2cyclictest0-21swapper/121:59:031
9818992418,4cyclictest0-21swapper/000:04:470
310722410,0sleep10-21swapper/100:15:431
9819992321,1cyclictest3386-21ssh22:05:011
9819992319,3cyclictest0-21swapper/123:01:521
9819992310,7cyclictest0-21swapper/123:36:341
9819992310,2cyclictest0-21swapper/119:42:121
981999230,3cyclictest0-21swapper/100:00:091
981899233,10cyclictest0-21swapper/023:37:130
9818992321,1cyclictest0-21swapper/023:35:290
9818992316,4cyclictest12795-21apache222:31:120
9818992316,3cyclictest12795-21apache200:34:210
9818992311,8cyclictest30604-21nscd00:18:190
981899230,4cyclictest0-21swapper/022:47:320
981899230,22cyclictest23459-21diskmemload21:29:320
981999223,14cyclictest0-21swapper/121:27:121
9819992216,3cyclictest12795-21apache223:42:001
9819992212,6cyclictest97950irq/108-eth1-tx21:14:021
9819992210,5cyclictest0-21swapper/123:17:001
9819992210,3cyclictest0-21swapper/100:02:141
9818992220,2cyclictest12795-21apache222:57:350
9818992219,2cyclictest12795-21apache221:15:000
9818992218,3cyclictest12810-21apache221:47:130
9818992210,6cyclictest0-21swapper/022:17:120
9818992210,0cyclictest0-21swapper/000:23:170
994622110,0sleep00-21swapper/022:12:420
9819992117,3cyclictest12795-21apache219:34:451
9819992114,5cyclictest12810-21apache222:36:361
9819992113,6cyclictest14507-21ssh22:19:401
9819992112,5cyclictest97750irq/106-eth1-rx22:41:061
9819992110,9cyclictest30722-21ssh22:42:101
9818992116,4cyclictest23570-21snmpd19:11:480
9818992112,7cyclictest32149-21ssh22:00:210
9818992111,5cyclictest10378-21fschecks_count20:32:130
9818992110,6cyclictest0-21swapper/022:11:590
740122110,0sleep10-21swapper/122:53:021
981999205,9cyclictest0-21swapper/119:37:141
981999202,18cyclictest0-21swapper/121:48:001
9819992020,0cyclictest0-21swapper/123:52:171
9819992018,2cyclictest0-21swapper/123:49:461
9819992014,2cyclictest9816-21cyclictest21:22:161
9819992010,8cyclictest23570-21snmpd21:56:301
9819992010,8cyclictest0-21swapper/122:07:161
9819992010,6cyclictest0-21swapper/120:02:101
9819992010,5cyclictest0-21swapper/119:57:201
9819992010,1cyclictest0-21swapper/120:34:011
981999200,12cyclictest0-21swapper/121:37:271
981899205,6cyclictest0-21swapper/022:37:120
981899204,10cyclictest0-21swapper/020:42:120
981899203,11cyclictest0-21swapper/022:52:120
9818992018,1cyclictest574-21cron22:45:590
9818992016,3cyclictest9816-21cyclictest00:16:090
9818992014,4cyclictest97750irq/106-eth1-rx23:44:200
9818992010,7cyclictest97750irq/106-eth1-rx21:11:010
2490622010,0sleep00-21swapper/000:00:310
981999195,9cyclictest0-21swapper/120:52:181
981999193,9cyclictest0-21swapper/120:27:101
9819991912,7cyclictest0-21swapper/121:44:391
9819991910,5cyclictest0-21swapper/123:22:201
9819991910,4cyclictest0-21swapper/100:32:071
9819991910,1cyclictest0-21swapper/123:38:481
981999190,12cyclictest0-21swapper/121:32:181
9818991910,6cyclictest0-21swapper/020:24:270
9818991910,5cyclictest0-21swapper/000:30:190
9818991910,2cyclictest0-21swapper/022:22:300
981899190,19cyclictest0-21swapper/022:03:420
9819991813,4cyclictest16554-21load20:47:151
981999180,9cyclictest0-21swapper/123:27:171
981899182,11cyclictest0-21swapper/023:22:180
9818991818,0cyclictest0-21swapper/021:45:130
9818991815,1cyclictest12795-21apache223:47:010
9818991814,4cyclictest12795-21apache223:21:060
981899181,12cyclictest0-21swapper/020:12:250
9818991810,4cyclictest0-21swapper/020:11:430
9818991810,3cyclictest0-21swapper/023:52:150
981899180,12cyclictest21533-21ntp_states23:12:190
3141721810,0sleep00-21swapper/000:09:370
981999173,8cyclictest5512-21ls20:17:201
981999173,11cyclictest0-21swapper/119:27:191
981999172,11cyclictest0-21swapper/100:07:221
9819991712,2cyclictest0-21swapper/121:21:241
9819991710,5cyclictest0-21swapper/121:01:241
9819991710,3cyclictest24022-21kworker/1:021:02:381
981899175,3cyclictest18210-21memory19:27:160
981899174,7cyclictest0-21swapper/019:12:110
981899174,6cyclictest0-21swapper/020:57:140
981899174,13cyclictest0-21swapper/021:03:500
981899172,7cyclictest27017-21perf19:51:590
981899171,7cyclictest0-21swapper/019:17:150
9818991711,3cyclictest0-21swapper/021:21:070
9818991710,1cyclictest0-21swapper/021:40:210
9818991710,1cyclictest0-21swapper/021:23:500
1925421710,0sleep00-21swapper/020:53:340
1114621710,0sleep10-21swapper/119:07:311
981999163,7cyclictest0-21swapper/119:22:131
981999163,10cyclictest0-21swapper/121:07:131
981999162,12cyclictest0-21swapper/120:12:161
9819991610,1cyclictest0-21swapper/120:41:591
981899163,7cyclictest0-21swapper/020:27:190
981899163,5cyclictest20028-21/usr/sbin/munin19:32:160
9818991615,1cyclictest28868-21sshd19:56:400
9818991610,3cyclictest16836-21kworker/0:219:37:510
9818991610,3cyclictest0-21swapper/019:22:120
9818991610,1cyclictest0-21swapper/019:42:190
1564721610,1sleep10-21swapper/120:45:511
981999151,8cyclictest0-21swapper/120:07:131
9819991512,1cyclictest23570-21snmpd20:26:471
9819991512,1cyclictest12561-21pmu-power19:12:171
9819991510,3cyclictest0-21swapper/119:50:011
9819991510,2cyclictest0-21swapper/119:17:141
981899152,12cyclictest4652-21fschecks_count20:17:120
9818991510,4cyclictest0-21swapper/020:02:090
9818991510,2cyclictest0-21swapper/020:47:140
981899143,8cyclictest0-21swapper/020:37:130
9818991310,2cyclictest0-21swapper/019:57:150
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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