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2025-12-24 - 11:46
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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 Wed Dec 24, 2025 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
53582680,1sleep15352-21awk21:04:571
2547126650,8sleep00-21swapper/019:06:120
2537326551,9sleep10-21swapper/119:05:231
26014992626,0cyclictest0-21swapper/123:16:161
26013992626,0cyclictest0-21swapper/000:04:090
26013992510,10cyclictest0-21swapper/022:55:350
2601499235,11cyclictest0-21swapper/122:40:081
2601399238,15cyclictest0-21swapper/022:29:240
2601399236,16cyclictest0-21swapper/022:18:080
26013992323,0cyclictest0-21swapper/020:10:560
26013992318,5cyclictest30767-21apache200:39:250
26013992310,6cyclictest0-21swapper/021:00:210
2601499228,9cyclictest28639-21cron23:29:571
2601499225,13cyclictest0-21swapper/119:30:091
2601499225,13cyclictest0-21swapper/119:30:091
26014992220,1cyclictest24-21ksoftirqd/122:19:561
26014992218,3cyclictest30738-21apache200:39:251
26014992210,7cyclictest0-21swapper/120:30:091
26014992210,6cyclictest0-21swapper/122:35:101
26014992210,0cyclictest0-21swapper/123:44:591
2601399224,10cyclictest0-21swapper/000:15:070
26013992210,4cyclictest28637-21cron23:29:570
357222110,1sleep00-21swapper/022:23:360
2601499215,7cyclictest0-21swapper/122:20:081
2601499212,3cyclictest19818-21ls20:15:201
26014992118,2cyclictest0-21swapper/122:49:421
26014992113,5cyclictest636-21nscd21:45:101
2601499211,16cyclictest0-21swapper/121:36:461
26014992110,7cyclictest0-21swapper/120:45:171
26014992110,3cyclictest0-21swapper/121:57:471
26014992110,2cyclictest0-21swapper/120:50:171
2601399216,7cyclictest0-21swapper/019:40:070
26013992110,4cyclictest0-21swapper/020:15:160
2601499207,6cyclictest0-21swapper/119:45:171
2601499205,8cyclictest0-21swapper/120:10:181
26014992012,3cyclictest0-21swapper/120:59:451
26014992010,6cyclictest0-21swapper/119:20:091
26014992010,5cyclictest0-21swapper/100:30:071
26014992010,3cyclictest0-21swapper/123:20:081
26014992010,0cyclictest0-21swapper/119:14:181
2601399202,13cyclictest0-21swapper/020:40:190
26013992018,1cyclictest81ktimersoftd/022:00:090
26013992016,3cyclictest6417-21munin-node23:22:350
2601399201,17cyclictest0-21swapper/020:50:140
26013992010,6cyclictest0-21swapper/023:15:100
26013992010,5cyclictest0-21swapper/022:35:090
26013992010,5cyclictest0-21swapper/020:25:110
26013992010,3cyclictest0-21swapper/022:40:160
26013992010,2cyclictest0-21swapper/019:35:130
2601499196,8cyclictest0-21swapper/123:30:091
2601499194,6cyclictest0-21swapper/119:55:081
2601499192,10cyclictest0-21swapper/123:50:131
26014991917,1cyclictest24-21ksoftirqd/119:40:151
26014991910,7cyclictest0-21swapper/123:09:071
26014991910,5cyclictest0-21swapper/100:05:141
26014991910,4cyclictest0-21swapper/120:43:161
26014991910,3cyclictest0-21swapper/119:51:131
2601499190,8cyclictest0-21swapper/100:00:141
2601499190,14cyclictest0-21swapper/121:10:191
2601399193,6cyclictest0-21swapper/021:40:120
2601399192,12cyclictest0-21swapper/020:55:150
26013991916,2cyclictest30738-21apache222:30:150
26013991910,4cyclictest0-21swapper/020:48:460
26013991910,4cyclictest0-21swapper/019:11:180
26013991910,0cyclictest0-21swapper/020:00:110
2601399190,12cyclictest0-21swapper/021:55:080
2601399190,11cyclictest0-21swapper/019:55:100
2601499185,8cyclictest0-21swapper/100:20:161
2601499185,6cyclictest0-21swapper/122:50:071
2601499183,9cyclictest0-21swapper/119:15:101
26014991812,3cyclictest0-21swapper/123:56:211
2601499181,0cyclictest16491-21ls22:55:161
26014991810,4cyclictest0-21swapper/122:30:091
2601499180,12cyclictest0-21swapper/120:00:151
2601399185,6cyclictest1199-21runrttasks19:50:100
2601399185,6cyclictest0-21swapper/019:25:100
2601399184,7cyclictest0-21swapper/023:55:100
2601399182,6cyclictest0-21swapper/023:50:100
26013991817,1cyclictest30738-21apache219:31:390
26013991817,1cyclictest30738-21apache219:31:390
26013991810,4cyclictest0-21swapper/021:15:090
26013991810,3cyclictest0-21swapper/020:30:110
26013991810,3cyclictest0-21swapper/020:05:080
26013991810,2cyclictest0-21swapper/023:30:170
1138621810,0sleep00-21swapper/000:07:180
1046421810,0sleep10-21swapper/121:15:171
2601499175,6cyclictest0-21swapper/120:20:101
2601499174,10cyclictest0-21swapper/123:10:151
2601499173,10cyclictest0-21swapper/122:05:181
26014991717,0cyclictest0-21swapper/100:13:271
26014991712,2cyclictest231ktimersoftd/121:25:161
26014991710,4cyclictest0-21swapper/123:40:081
26014991710,4cyclictest0-21swapper/121:30:101
26014991710,4cyclictest0-21swapper/119:25:101
26014991710,3cyclictest0-21swapper/100:25:151
2601499170,11cyclictest0-21swapper/122:00:091
2601399176,6cyclictest0-21swapper/022:45:080
2601399175,6cyclictest0-21swapper/022:05:100
2601399174,9cyclictest0-21swapper/021:25:170
26013991717,0cyclictest0-21swapper/019:21:430
26013991713,2cyclictest81ktimersoftd/021:50:090
26013991710,5cyclictest0-21swapper/000:20:090
26013991710,4cyclictest0-21swapper/023:48:470
26013991710,4cyclictest0-21swapper/023:10:100
26013991710,4cyclictest0-21swapper/021:45:480
26013991710,4cyclictest0-21swapper/021:10:090
26013991710,2cyclictest0-21swapper/021:35:140
26013991710,2cyclictest0-21swapper/021:30:110
2601399170,11cyclictest0-21swapper/021:20:130
2601399170,11cyclictest0-21swapper/021:20:130
1893921710,0sleep00-21swapper/023:03:580
714021610,0sleep00-21swapper/019:45:070
2601499168,3cyclictest231ktimersoftd/120:28:301
2601499166,9cyclictest0-21swapper/122:10:181
2601499166,6cyclictest0-21swapper/120:35:091
26014991610,6cyclictest0-21swapper/123:35:161
2601499160,3cyclictest0-21swapper/100:15:131
2601399163,3cyclictest32699-21/usr/sbin/munin23:40:200
2601399162,7cyclictest0-21swapper/022:10:170
26013991610,3cyclictest0-21swapper/023:35:150
26013991610,3cyclictest0-21swapper/020:20:180
26013991610,1cyclictest0-21swapper/019:15:160
2601499154,5cyclictest0-21swapper/121:40:121
2601499154,4cyclictest0-21swapper/122:25:101
2601499153,11cyclictest13769-21kworker/1:220:05:081
2601499152,5cyclictest3297-21/usr/sbin/munin19:35:151
26014991510,3cyclictest0-21swapper/121:05:371
26014991510,2cyclictest0-21swapper/123:00:111
26014991510,2cyclictest0-21swapper/121:20:581
26014991510,2cyclictest0-21swapper/121:20:581
2601399155,7cyclictest0-21swapper/021:05:080
2601399153,8cyclictest0-21swapper/020:35:110
2601399153,5cyclictest0-21swapper/022:52:400
2601399152,7cyclictest0-21swapper/023:05:150
26013991510,3cyclictest0-21swapper/000:25:150
26013991510,2cyclictest0-21swapper/000:30:070
26013991510,2cyclictest0-21swapper/000:10:170
2601499139,3cyclictest1199-21runrttasks21:50:351
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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