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2025-11-19 - 00:37
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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 Tue Nov 18, 2025 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2342221030,2sleep02878699cyclictest10:46:130
2833327057,8sleep10-21swapper/107:03:561
2827126855,8sleep00-21swapper/007:03:160
225592630,0sleep00-21swapper/012:07:240
272122600,0sleep00-21swapper/010:50:480
23232390,0sleep10-21swapper/111:42:051
28786993810,27cyclictest0-21swapper/009:42:280
28787993126,3cyclictest0-21swapper/111:04:531
28787993111,4cyclictest0-21swapper/109:06:481
28786993131,0cyclictest0-21swapper/010:53:150
28786993010,3cyclictest0-21swapper/009:41:270
28787992928,1cyclictest0-21swapper/108:10:251
28787992810,13cyclictest0-21swapper/111:34:501
28786992826,1cyclictest7-21ksoftirqd/010:36:470
28787992725,1cyclictest6222-21apache210:12:001
2878799271,3cyclictest0-21swapper/110:32:041
28787992710,15cyclictest0-21swapper/112:15:371
28787992710,12cyclictest0-21swapper/107:12:441
2878699271,25cyclictest0-21swapper/011:22:580
28787992624,1cyclictest0-21swapper/111:09:001
28787992610,2cyclictest0-21swapper/112:07:461
28786992626,0cyclictest0-21swapper/011:12:230
28786992610,7cyclictest0-21swapper/012:18:280
2878799256,18cyclictest0-21swapper/109:29:581
28786992525,0cyclictest0-21swapper/012:21:580
28786992515,5cyclictest10620-21ssh10:28:430
28786992510,0cyclictest0-21swapper/008:24:150
2878699250,23cyclictest0-21swapper/010:02:120
2878699250,17cyclictest14743-21/usr/sbin/munin11:17:080
28787992422,1cyclictest14192-21ssh11:16:101
28787992412,3cyclictest0-21swapper/112:35:401
28787992410,3cyclictest0-21swapper/108:22:021
28786992420,1cyclictest6222-21apache210:13:380
28786992419,4cyclictest6244-21apache208:45:300
28786992413,6cyclictest0-21swapper/012:04:470
28786992413,6cyclictest0-21swapper/012:04:470
28787992311,3cyclictest0-21swapper/110:41:591
28787992310,6cyclictest0-21swapper/112:22:041
28787992310,10cyclictest97850irq/107-eth1-rx12:03:571
28787992310,10cyclictest97850irq/107-eth1-rx12:03:571
2878699236,16cyclictest0-21swapper/011:50:170
28786992321,1cyclictest7-21ksoftirqd/008:21:470
2878699232,0cyclictest0-21swapper/011:32:410
28787992222,0cyclictest0-21swapper/109:38:151
2878799222,19cyclictest0-21swapper/110:59:231
28787992210,3cyclictest0-21swapper/107:17:021
2878699223,11cyclictest4372-21munin-run10:21:470
28786992218,1cyclictest28784-21cyclictest11:43:270
28786992211,8cyclictest25808-21ssh12:12:100
2878699220,3cyclictest0-21swapper/009:18:450
1211022210,1sleep10-21swapper/109:49:141
2878799218,4cyclictest23594-21/usr/sbin/munin08:16:591
2878799217,8cyclictest589-21in:imuxsock09:51:471
2878799215,7cyclictest0-21swapper/108:57:001
2878799211,3cyclictest0-21swapper/110:04:401
2878799211,11cyclictest0-21swapper/108:47:061
28787992110,7cyclictest0-21swapper/109:20:501
28787992110,1cyclictest0-21swapper/109:44:441
2878799210,20cyclictest0-21swapper/109:16:241
2878699217,10cyclictest0-21swapper/010:57:030
2878699216,8cyclictest5918-21apt-get07:31:470
2878699215,12cyclictest0-21swapper/008:47:120
28786992121,0cyclictest0-21swapper/007:19:300
28786992120,0cyclictest0-21swapper/010:24:020
28786992119,1cyclictest7-21ksoftirqd/009:27:020
28786992115,5cyclictest81ktimersoftd/009:56:390
28786992113,6cyclictest18540-21snmpd12:34:450
28786992110,7cyclictest0-21swapper/011:30:010
28786992110,6cyclictest0-21swapper/008:35:050
28786992110,4cyclictest0-21swapper/009:22:180
2878699210,11cyclictest0-21swapper/007:47:060
1537922110,0sleep00-21swapper/011:58:210
2878799204,9cyclictest0-21swapper/110:38:581
2878799204,9cyclictest0-21swapper/110:22:021
2878799203,10cyclictest0-21swapper/107:07:091
2878799202,18cyclictest2518-21kworker/1:210:29:461
28787992019,1cyclictest6222-21apache210:08:501
28787992019,1cyclictest0-21swapper/111:25:471
28787992019,0cyclictest6222-21apache211:48:081
28787992014,3cyclictest6244-21apache208:30:391
28787992011,3cyclictest0-21swapper/109:32:121
28787992010,9cyclictest0-21swapper/111:17:051
28787992010,7cyclictest0-21swapper/110:17:501
28787992010,5cyclictest0-21swapper/107:46:591
28787992010,4cyclictest0-21swapper/108:52:061
28787992010,1cyclictest0-21swapper/110:49:401
2878699204,12cyclictest0-21swapper/008:02:080
28786992013,3cyclictest7-21ksoftirqd/007:12:070
28786992012,3cyclictest0-21swapper/009:58:300
28786992010,9cyclictest0-21swapper/011:37:000
28786992010,6cyclictest15157-21ls07:52:070
28786992010,5cyclictest0-21swapper/009:12:000
28786992010,2cyclictest0-21swapper/009:06:500
1878722010,1sleep10-21swapper/108:02:091
2878799194,6cyclictest1111-21runrttasks08:34:291
2878799192,12cyclictest168-21systemd-journal12:31:461
2878799192,11cyclictest0-21swapper/111:51:591
2878799192,10cyclictest0-21swapper/112:17:001
28787991910,3cyclictest0-21swapper/109:02:081
2878799190,18cyclictest0-21swapper/109:26:071
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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