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2025-12-11 - 03:48
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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 Dec 11, 2025 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1579126955,9sleep10-21swapper/119:02:231
1615026856,8sleep00-21swapper/019:06:060
16381994510,7cyclictest0-21swapper/122:20:201
16381994210,31cyclictest0-21swapper/121:16:551
16381994110,31cyclictest0-21swapper/122:10:431
16381994110,30cyclictest0-21swapper/123:10:311
16381994110,30cyclictest0-21swapper/122:23:421
16381994110,30cyclictest0-21swapper/121:26:521
16381994010,29cyclictest0-21swapper/123:54:301
16381994010,29cyclictest0-21swapper/122:00:321
16381994010,29cyclictest0-21swapper/119:38:151
16381994010,29cyclictest0-21swapper/100:26:341
16381993910,28cyclictest0-21swapper/122:57:171
16381993910,27cyclictest0-21swapper/123:33:571
16381993910,27cyclictest0-21swapper/119:51:581
16381993812,25cyclictest29239-21ssh21:48:441
16381993810,28cyclictest0-21swapper/122:36:481
16381993810,28cyclictest0-21swapper/119:06:511
16381993810,27cyclictest0-21swapper/122:46:281
16381993810,27cyclictest0-21swapper/122:02:121
16381993810,27cyclictest0-21swapper/121:07:351
16381993810,27cyclictest0-21swapper/120:22:251
16381993810,24cyclictest0-21swapper/121:38:071
16381993810,21cyclictest0-21swapper/123:27:441
16381993710,27cyclictest0-21swapper/123:04:081
16381993710,27cyclictest0-21swapper/122:54:081
16381993710,26cyclictest0-21swapper/123:48:161
16381993710,26cyclictest0-21swapper/122:12:061
16381993710,26cyclictest0-21swapper/120:06:371
16381993611,24cyclictest5017-21kworker/u4:121:22:041
16381993610,26cyclictest0-21swapper/120:11:531
16381993610,25cyclictest0-21swapper/121:35:271
16381993610,25cyclictest0-21swapper/100:18:001
16381993610,24cyclictest0-21swapper/123:46:131
16381993610,23cyclictest0-21swapper/122:31:091
16381993610,22cyclictest0-21swapper/120:58:421
16381993511,23cyclictest7281-21ssh22:47:351
16381993510,25cyclictest0-21swapper/121:46:231
16381993510,24cyclictest0-21swapper/123:57:161
16381993510,24cyclictest0-21swapper/100:32:211
16381993510,24cyclictest0-21swapper/100:29:261
16381993510,22cyclictest0-21swapper/123:16:381
16381993510,22cyclictest0-21swapper/121:51:521
16381993410,8cyclictest0-21swapper/123:39:031
16381993410,24cyclictest0-21swapper/119:27:341
16381993410,23cyclictest0-21swapper/121:15:391
16381993410,23cyclictest0-21swapper/100:02:221
1638199340,4cyclictest0-21swapper/100:10:391
16381993310,5cyclictest0-21swapper/120:31:271
16381993310,23cyclictest0-21swapper/119:22:591
16381993310,20cyclictest19388-21ls19:11:571
1638199330,31cyclictest20832-21/usr/sbin/munin19:16:551
16381993210,21cyclictest0-21swapper/120:17:571
16381993210,21cyclictest0-21swapper/120:08:171
16381993210,19cyclictest0-21swapper/123:18:431
16381993116,15cyclictest0-21swapper/100:11:481
16381993114,17cyclictest0-21swapper/121:02:011
16381993111,18cyclictest0-21swapper/120:49:401
16381993110,19cyclictest0-21swapper/123:22:231
16381993010,20cyclictest0-21swapper/119:41:561
1638199300,11cyclictest24357-21/usr/sbin/munin20:52:001
16380993029,0cyclictest0-21swapper/022:42:190
16381992910,19cyclictest0-21swapper/119:31:501
16381992910,17cyclictest0-21swapper/120:37:401
16381992910,16cyclictest0-21swapper/120:00:491
16380992928,0cyclictest29956-21diskmemload21:58:150
16380992810,2cyclictest0-21swapper/021:26:150
1638199271,4cyclictest0-21swapper/120:36:071
1638099270,25cyclictest0-21swapper/022:23:030
1638199263,5cyclictest27374-21ls22:31:501
16381992610,15cyclictest0-21swapper/119:46:511
16380992620,3cyclictest11769-21apache223:29:220
16380992515,9cyclictest11792-21apache222:17:510
16380992510,9cyclictest0-21swapper/000:01:520
16380992510,15cyclictest0-21swapper/000:30:080
1638099246,10cyclictest0-21swapper/020:31:520
16380992422,1cyclictest0-21swapper/021:06:180
16380992418,6cyclictest0-21swapper/022:32:190
16380992414,6cyclictest11792-21apache221:37:490
16380992412,10cyclictest29956-21diskmemload23:59:390
16380992320,1cyclictest0-21swapper/023:43:510
16380992317,6cyclictest11792-21apache223:15:410
16380992315,5cyclictest30214-21snmpd19:40:000
1638099231,21cyclictest30962-21apache_accesses00:06:490
16380992311,7cyclictest0-21swapper/023:03:160
16380992310,8cyclictest0-21swapper/000:31:560
1638099230,22cyclictest0-21swapper/019:28:330
1638099222,18cyclictest25258-21rm22:27:410
16380992219,3cyclictest0-21swapper/022:11:160
16380992210,8cyclictest0-21swapper/023:36:440
1674522110,0sleep00-21swapper/019:06:520
1638099216,11cyclictest0-21swapper/020:41:510
1638099214,12cyclictest0-21swapper/020:26:400
16380992121,0cyclictest0-21swapper/020:21:000
16380992111,5cyclictest0-21swapper/023:06:530
16380992110,5cyclictest0-21swapper/023:31:560
16380992110,4cyclictest0-21swapper/020:01:540
1638099210,15cyclictest0-21swapper/021:16:590
1638199202,4cyclictest20998-21if_eth020:41:531
1638099206,6cyclictest0-21swapper/022:36:570
1638099205,12cyclictest0-21swapper/022:01:500
16380992020,0cyclictest0-21swapper/020:00:090
16380992016,3cyclictest11769-21apache200:14:390
16380992011,8cyclictest22207-21ssh23:53:190
16380992011,4cyclictest11769-21apache222:13:080
16380992010,9cyclictest0-21swapper/023:22:060
16380992010,5cyclictest0-21swapper/023:19:170
16380992010,4cyclictest0-21swapper/021:51:530
16380992010,4cyclictest0-21swapper/021:06:530
16380992010,3cyclictest0-21swapper/021:31:490
16380992010,3cyclictest0-21swapper/000:23:460
16380992010,2cyclictest0-21swapper/021:28:470
16380991917,1cyclictest30214-21snmpd23:49:440
16380991915,3cyclictest11769-21apache219:18:020
16380991910,7cyclictest0-21swapper/022:50:040
16380991910,5cyclictest9334-21/usr/sbin/munin22:51:590
1638099190,1cyclictest24444-21awk21:41:530
1638099181,7cyclictest0-21swapper/019:22:060
16380991816,2cyclictest11769-21apache221:50:180
16380991811,2cyclictest0-21swapper/020:51:590
16380991810,3cyclictest0-21swapper/019:53:210
16380991810,1cyclictest0-21swapper/019:41:530
1638099179,6cyclictest0-21swapper/020:50:250
16380991711,3cyclictest11783-21apache220:56:500
16380991711,3cyclictest0-21swapper/020:21:540
16380991710,3cyclictest0-21swapper/020:39:410
1638099168,8cyclictest0-21swapper/019:13:130
1638099162,9cyclictest0-21swapper/019:31:500
1638099162,8cyclictest0-21swapper/019:49:080
16380991611,2cyclictest30214-21snmpd20:08:160
16380991610,4cyclictest3757-21kworker/0:100:17:440
16380991610,3cyclictest0-21swapper/021:13:490
16380991610,2cyclictest0-21swapper/020:14:420
16380991610,0cyclictest0-21swapper/022:57:090
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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