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2025-12-29 - 11:57
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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 Mon Dec 29, 2025 00:43:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1264627057,9sleep10-21swapper/119:09:431
1246526249,8sleep00-21swapper/019:07:490
12846993610,1cyclictest0-21swapper/021:26:410
12847993211,20cyclictest0-21swapper/100:00:081
12847993131,0cyclictest0-21swapper/120:04:021
1284699270,26cyclictest0-21swapper/022:07:260
12847992624,1cyclictest24-21ksoftirqd/119:54:541
12847992610,6cyclictest0-21swapper/121:26:341
1284799260,6cyclictest100250irq/107-eth1-rx23:40:081
1284799260,25cyclictest0-21swapper/121:15:131
1284699262,2cyclictest12341-21cron22:54:550
12847992510,6cyclictest0-21swapper/121:00:131
12846992525,0cyclictest0-21swapper/000:39:380
12846992519,4cyclictest8197-21apache220:09:370
12847992422,1cyclictest0-21swapper/121:47:001
12847992419,4cyclictest231ktimersoftd/122:02:261
12847992415,4cyclictest0-21swapper/120:55:101
12847992410,7cyclictest0-21swapper/121:55:061
12846992421,1cyclictest0-21swapper/023:11:340
12847992323,0cyclictest0-21swapper/122:05:131
12847992310,8cyclictest0-21swapper/100:05:121
12846992321,1cyclictest16576-21sendmail19:19:550
12846992320,2cyclictest593-21lldpd21:24:540
1284699231,9cyclictest0-21swapper/021:30:100
12846992316,3cyclictest12842-21cyclictest22:32:450
12846992310,5cyclictest0-21swapper/021:16:100
1284699230,15cyclictest5927-21sed22:45:160
2174722210,0sleep10-21swapper/121:44:201
1284799226,8cyclictest0-21swapper/123:05:061
1284799222,8cyclictest0-21swapper/121:30:101
12847992210,6cyclictest0-21swapper/123:45:411
12847992210,1cyclictest0-21swapper/100:31:251
12846992210,5cyclictest0-21swapper/022:39:470
12846992210,4cyclictest0-21swapper/023:32:540
12846992210,3cyclictest0-21swapper/022:26:390
12846992210,2cyclictest0-21swapper/023:25:060
12846992210,1cyclictest0-21swapper/023:46:000
12847992119,1cyclictest636-21nscd00:28:591
12847992119,1cyclictest24-21ksoftirqd/123:55:161
12847992119,1cyclictest24-21ksoftirqd/120:47:481
12847992116,2cyclictest231ktimersoftd/121:10:141
12847992114,4cyclictest0-21swapper/120:05:161
12847992113,5cyclictest636-21nscd22:58:351
1284799211,19cyclictest0-21swapper/121:35:091
12847992110,9cyclictest0-21swapper/123:03:501
12847992110,7cyclictest0-21swapper/119:10:061
12847992110,5cyclictest0-21swapper/122:42:481
1284799210,19cyclictest0-21swapper/119:28:161
1284699217,13cyclictest0-21swapper/023:20:100
1284699213,15cyclictest0-21swapper/019:25:090
12846992121,0cyclictest0-21swapper/020:15:140
12846992120,1cyclictest947-21sendmail-mta00:21:570
12846992112,5cyclictest9939-1kworker/u5:000:32:300
12846992111,9cyclictest588-21in:imuxsock23:39:490
12846992111,6cyclictest81ktimersoftd/019:40:090
12846992110,6cyclictest100150irq/106-eth1-rx23:55:500
12846992110,5cyclictest0-21swapper/020:35:090
12846992110,2cyclictest8170-21apache222:18:400
12846992110,0cyclictest0-21swapper/000:13:530
1284699210,12cyclictest0-21swapper/019:10:170
681522010,1sleep10-21swapper/122:46:521
1284799205,8cyclictest0-21swapper/120:50:101
1284799204,8cyclictest0-21swapper/120:10:091
12847992016,4cyclictest24-21ksoftirqd/122:53:381
12847992015,3cyclictest1199-21runrttasks19:19:341
1284799201,15cyclictest0-21swapper/119:20:141
1284799201,10cyclictest0-21swapper/119:30:071
12847992010,4cyclictest0-21swapper/119:40:171
12847992010,3cyclictest0-21swapper/123:11:021
12847992010,3cyclictest0-21swapper/122:10:091
1284699205,6cyclictest0-21swapper/020:10:070
1284699205,10cyclictest0-21swapper/019:45:140
1284699203,16cyclictest31385-21cstates00:00:070
1284699203,10cyclictest0-21swapper/020:25:150
12846992016,3cyclictest28411-21/usr/sbin/munin23:15:110
12846992014,2cyclictest27355-21memory21:10:130
12846992010,4cyclictest0-21swapper/022:20:070
12846992010,4cyclictest0-21swapper/021:49:330
1496221910,0sleep10-21swapper/123:39:131
1284799196,5cyclictest636-21nscd23:33:411
12847991918,1cyclictest645-21nscd20:20:251
12847991915,2cyclictest8197-21apache223:50:281
12847991915,1cyclictest0-21swapper/122:20:071
12847991911,4cyclictest0-21swapper/120:35:081
12847991910,7cyclictest0-21swapper/100:10:471
12847991910,6cyclictest100450irq/109-eth1-tx21:51:281
12847991910,5cyclictest0-21swapper/123:24:091
12847991910,4cyclictest0-21swapper/100:24:011
1284799190,5cyclictest0-21swapper/121:24:171
1284699198,10cyclictest0-21swapper/023:50:090
12846991913,3cyclictest8170-21apache221:37:040
12846991911,2cyclictest11228-21/usr/sbin/munin20:30:100
12846991910,7cyclictest0-21swapper/021:56:110
12846991910,6cyclictest0-21swapper/000:26:190
12846991910,3cyclictest0-21swapper/019:55:090
12846991910,2cyclictest0-21swapper/019:20:070
12846991910,0cyclictest0-21swapper/022:57:180
1284699190,19cyclictest0-21swapper/019:38:050
12847991817,0cyclictest24-21ksoftirqd/123:25:131
12847991810,7cyclictest0-21swapper/122:33:161
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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