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2026-04-29 - 09:36
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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 100 highest latencies:
System rackcslot2.osadl.org (updated Wed Apr 29, 2026 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2827927149,8sleep10-21swapper/119:07:441
2695127158,8sleep00-21swapper/019:05:200
28585993433,1cyclictest0-21swapper/123:23:021
2858599320,1cyclictest0-21swapper/123:32:401
28585993029,1cyclictest0-21swapper/119:53:571
28585993010,19cyclictest0-21swapper/122:52:121
28585992910,18cyclictest0-21swapper/122:17:321
28585992910,16cyclictest0-21swapper/122:10:321
28585992910,12cyclictest0-21swapper/120:59:201
28585992823,5cyclictest231ktimersoftd/120:19:171
28585992710,4cyclictest0-21swapper/122:57:301
28585992710,14cyclictest0-21swapper/121:24:391
2858599262,4cyclictest22430-21/usr/sbin/munin22:04:221
28584992623,2cyclictest0-21swapper/022:05:450
28584992623,1cyclictest81ktimersoftd/000:24:170
28584992622,3cyclictest1199-21runrttasks23:27:190
28584992610,2cyclictest0-21swapper/000:10:020
28585992525,0cyclictest0-21swapper/119:16:121
28585992519,4cyclictest8784-21apache223:10:361
2858599250,8cyclictest100150irq/106-eth1-rx00:20:541
28584992524,0cyclictest0-21swapper/022:25:240
28584992517,3cyclictest81ktimersoftd/020:49:190
28584992517,3cyclictest0-21swapper/022:56:300
28584992510,13cyclictest0-21swapper/022:59:390
2858499250,1cyclictest0-21swapper/022:35:430
28585992411,12cyclictest0-21swapper/123:37:161
2858599240,22cyclictest0-21swapper/121:30:041
2858599240,0cyclictest15853-21ssh21:56:311
28584992423,0cyclictest0-21swapper/021:32:380
28584992410,3cyclictest0-21swapper/000:07:510
1718722410,0sleep10-21swapper/121:17:101
28585992310,7cyclictest0-21swapper/119:54:181
28585992310,6cyclictest0-21swapper/121:52:391
28585992310,11cyclictest0-21swapper/100:15:001
28584992311,5cyclictest0-21swapper/022:11:060
28584992310,5cyclictest0-21swapper/000:38:430
2858599221,19cyclictest1088-21ls20:44:201
28585992210,7cyclictest0-21swapper/123:05:521
28585992210,4cyclictest0-21swapper/120:24:231
28584992220,1cyclictest8784-21apache219:49:240
28584992219,1cyclictest81ktimersoftd/021:54:080
28584992214,5cyclictest4777-21kworker/u4:023:52:070
28584992210,7cyclictest0-21swapper/023:54:190
28584992210,7cyclictest0-21swapper/021:46:070
28584992210,6cyclictest0-21swapper/023:14:150
2468322210,0sleep00-21swapper/020:20:410
2858599218,6cyclictest15999-21/usr/sbin/munin19:59:181
28585992120,1cyclictest8811-21apache200:32:261
28585992110,4cyclictest0-21swapper/121:39:151
28585992110,4cyclictest0-21swapper/119:09:211
28585992110,2cyclictest0-21swapper/100:10:381
28585992110,0cyclictest0-21swapper/122:36:131
2858599210,16cyclictest23980-21kworker/u4:023:16:561
28584992118,3cyclictest8784-21apache222:50:090
28584992116,4cyclictest8811-21apache223:10:360
28584992112,7cyclictest8784-21apache200:20:020
28584992112,5cyclictest0-21swapper/021:34:190
28584992112,4cyclictest0-21swapper/019:59:140
28584992110,7cyclictest0-21swapper/020:09:270
28584992110,6cyclictest0-21swapper/022:44:150
28584992110,5cyclictest0-21swapper/022:04:040
28584992110,3cyclictest0-21swapper/022:39:200
2858499210,10cyclictest0-21swapper/023:29:150
264522110,0sleep10-21swapper/100:26:561
1353822110,0sleep10-21swapper/121:13:021
2858599204,3cyclictest9955-21diskmemload21:59:401
2858599202,12cyclictest0-21swapper/120:34:211
28585992016,3cyclictest0-21swapper/119:44:171
28585992016,2cyclictest0-21swapper/121:20:521
28585992011,4cyclictest0-21swapper/123:44:151
28585992010,7cyclictest0-21swapper/123:00:291
28585992010,7cyclictest0-21swapper/121:35:581
28585992010,7cyclictest0-21swapper/120:04:141
28585992010,6cyclictest100250irq/107-eth1-rx22:21:231
28585992010,5cyclictest0-21swapper/122:29:061
28585992010,5cyclictest0-21swapper/119:29:151
28585992010,4cyclictest0-21swapper/122:39:191
2858599200,15cyclictest0-21swapper/121:46:561
2858599200,12cyclictest9803-21ssh23:54:151
2858499204,12cyclictest0-21swapper/023:19:140
28584992020,0cyclictest0-21swapper/022:21:470
28584992019,1cyclictest8784-21apache200:32:260
28584992010,7cyclictest0-21swapper/021:54:040
28584992010,4cyclictest0-21swapper/023:47:010
28584992010,4cyclictest0-21swapper/022:14:210
1575922010,0sleep10-21swapper/100:01:041
28585991914,1cyclictest28582-21cyclictest00:34:191
28585991912,4cyclictest0-21swapper/119:19:221
28585991910,4cyclictest0-21swapper/120:14:171
28585991910,2cyclictest0-21swapper/100:05:161
2858499193,10cyclictest0-21swapper/019:14:190
28584991911,5cyclictest0-21swapper/021:24:180
28584991910,5cyclictest0-21swapper/019:24:200
28584991910,3cyclictest0-21swapper/021:04:200
28584991910,2cyclictest0-21swapper/020:24:310
2858499190,9cyclictest0-21swapper/021:19:240
2858499190,0cyclictest0-21swapper/020:16:510
2858599188,3cyclictest0-21swapper/119:39:071
2858599186,8cyclictest649-21nscd20:54:171
2858599186,8cyclictest0-21swapper/120:29:221
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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