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2025-12-19 - 05:56
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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 all highest latencies:
System rackcslot2.osadl.org (updated Fri Dec 19, 2025 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2153127252,15sleep10-21swapper/119:06:251
2012726755,8sleep00-21swapper/019:05:070
60242620,0sleep10-21swapper/100:05:151
22056992710,8cyclictest0-21swapper/120:30:111
22056992710,10cyclictest0-21swapper/123:30:181
22055992727,0cyclictest0-21swapper/000:04:050
2205699250,21cyclictest0-21swapper/121:24:591
22055992524,1cyclictest0-21swapper/021:50:000
2205599250,12cyclictest0-21swapper/023:55:140
22055992422,1cyclictest7-21ksoftirqd/019:39:590
22055992422,1cyclictest7-21ksoftirqd/019:39:590
2205599240,16cyclictest0-21swapper/021:15:100
22056992318,4cyclictest15495-21apache223:28:291
22056992317,1cyclictest0-21swapper/122:40:491
22056992310,5cyclictest0-21swapper/120:03:161
22055992323,0cyclictest0-21swapper/022:06:150
22055992323,0cyclictest0-21swapper/000:08:480
22055992320,2cyclictest0-21swapper/022:48:480
22056992210,0cyclictest0-21swapper/119:14:471
22055992219,2cyclictest0-21swapper/022:25:100
22055992210,6cyclictest0-21swapper/023:45:140
2205699213,9cyclictest0-21swapper/123:20:201
22056992110,6cyclictest0-21swapper/123:57:411
22056992110,6cyclictest0-21swapper/122:45:101
22056992110,6cyclictest0-21swapper/121:15:141
22056992110,5cyclictest0-21swapper/123:35:121
22056992110,5cyclictest0-21swapper/119:35:201
22056992110,5cyclictest0-21swapper/119:35:201
2205699210,14cyclictest0-21swapper/120:10:191
2205599215,9cyclictest0-21swapper/022:40:110
22055992118,1cyclictest7-21ksoftirqd/022:00:190
22055992115,5cyclictest15508-21apache219:10:160
22055992110,7cyclictest0-21swapper/023:35:160
22055992110,10cyclictest0-21swapper/022:35:120
2205699206,9cyclictest0-21swapper/122:20:141
2205699203,8cyclictest0-21swapper/122:00:101
22056992017,2cyclictest15508-21apache220:50:211
22056992010,6cyclictest0-21swapper/122:50:101
22056992010,4cyclictest0-21swapper/120:25:121
22056992010,4cyclictest0-21swapper/119:30:081
22056992010,3cyclictest0-21swapper/119:45:111
22056992010,1cyclictest0-21swapper/120:45:091
2205599205,10cyclictest0-21swapper/021:55:100
2205599204,12cyclictest0-21swapper/023:05:210
2205599204,11cyclictest0-21swapper/023:15:170
2205599203,7cyclictest0-21swapper/019:15:100
2205599203,12cyclictest0-21swapper/023:10:120
2205599203,11cyclictest0-21swapper/022:15:150
2205599202,11cyclictest0-21swapper/023:40:170
22055992016,3cyclictest15508-21apache219:32:040
22055992012,3cyclictest744-21snmpd22:34:080
22055992010,7cyclictest0-21swapper/020:55:210
22055992010,5cyclictest0-21swapper/020:06:580
22055992010,3cyclictest0-21swapper/021:40:560
2205699198,6cyclictest17346-21df23:10:131
2205699194,9cyclictest0-21swapper/119:20:091
2205699191,11cyclictest0-21swapper/100:25:141
22056991910,3cyclictest0-21swapper/120:55:161
2205699190,17cyclictest13745-21kworker/1:223:03:221
2205599197,4cyclictest0-21swapper/019:40:100
2205599194,12cyclictest28226-21/usr/sbin/munin20:50:130
2205599193,8cyclictest5154-21munin-run21:14:590
2205599192,8cyclictest0-21swapper/020:15:110
22055991919,0cyclictest947-21sendmail-mta23:52:430
22055991913,4cyclictest7-21ksoftirqd/022:24:080
22055991911,4cyclictest0-21swapper/021:21:260
22055991910,4cyclictest0-21swapper/020:40:120
22055991910,2cyclictest0-21swapper/023:30:070
2205699186,7cyclictest21107-21/usr/sbin/munin21:55:131
2205699185,7cyclictest0-21swapper/122:35:111
2205699184,8cyclictest0-21swapper/122:15:181
2205699184,7cyclictest29610-21mailstats23:40:181
2205699182,5cyclictest0-21swapper/122:09:581
2205699182,11cyclictest0-21swapper/121:35:201
22056991812,4cyclictest0-21swapper/122:10:201
22056991810,7cyclictest0-21swapper/119:15:171
22056991810,5cyclictest0-21swapper/122:30:151
22056991810,3cyclictest0-21swapper/120:40:161
22056991810,3cyclictest0-21swapper/119:55:171
22056991810,2cyclictest0-21swapper/122:55:041
22056991810,2cyclictest0-21swapper/121:50:131
22056991810,2cyclictest0-21swapper/119:42:251
22056991810,1cyclictest0-21swapper/123:15:171
22055991818,0cyclictest0-21swapper/022:12:350
22055991810,5cyclictest0-21swapper/000:22:290
22055991810,4cyclictest0-21swapper/000:25:100
22055991810,3cyclictest0-21swapper/023:20:120
22055991810,3cyclictest0-21swapper/023:00:110
22055991810,3cyclictest0-21swapper/020:30:160
22055991810,3cyclictest0-21swapper/020:20:130
22055991810,2cyclictest0-21swapper/022:55:510
1268921810,1sleep00-21swapper/020:10:000
2205699175,7cyclictest0-21swapper/100:10:121
2205699175,6cyclictest0-21swapper/121:28:251
2205699173,6cyclictest17714-21fschecks_time00:35:121
2205699173,10cyclictest0-21swapper/119:25:151
2205699172,9cyclictest0-21swapper/121:00:171
22056991717,0cyclictest0-21swapper/120:05:121
22056991714,2cyclictest15878-21idleruntime00:30:131
22056991712,3cyclictest15508-21apache220:36:101
2205699171,11cyclictest0-21swapper/123:05:111
22056991710,2cyclictest0-21swapper/121:45:111
22056991710,1cyclictest17280-21missed_timers20:20:171
22056991710,1cyclictest0-21swapper/119:50:161
2205599176,5cyclictest0-21swapper/019:45:190
2205599174,5cyclictest0-21swapper/000:10:180
22055991716,1cyclictest744-21snmpd20:35:280
22055991715,1cyclictest112542sleep000:18:140
22055991713,3cyclictest1108-21sleep21:03:260
22055991711,3cyclictest0-21swapper/000:35:120
2205599171,10cyclictest0-21swapper/021:35:110
22055991710,4cyclictest0-21swapper/022:50:190
22055991710,4cyclictest0-21swapper/019:55:120
22055991710,3cyclictest0-21swapper/020:45:100
22055991710,3cyclictest0-21swapper/020:00:130
22055991710,2cyclictest0-21swapper/020:25:100
22055991710,1cyclictest0-21swapper/000:30:150
22056991614,1cyclictest20111-21kworker/u4:021:41:381
22056991610,6cyclictest0-21swapper/122:25:031
22056991610,2cyclictest0-21swapper/120:18:221
22055991614,0cyclictest81ktimersoftd/023:26:520
22055991610,4cyclictest0-21swapper/021:09:590
22055991610,3cyclictest0-21swapper/021:30:120
22055991610,3cyclictest0-21swapper/021:25:150
22055991610,3cyclictest0-21swapper/019:54:590
22055991610,2cyclictest0-21swapper/021:49:130
1237421610,0sleep10-21swapper/121:30:331
2205699152,8cyclictest0-21swapper/123:45:101
2205699152,7cyclictest0-21swapper/100:00:201
22056991515,0cyclictest0-21swapper/100:16:091
2205699150,10cyclictest0-21swapper/121:05:111
22055991510,1cyclictest0-21swapper/019:20:100
22056991410,3cyclictest0-21swapper/123:50:041
22056991410,2cyclictest0-21swapper/121:10:221
2205699140,12cyclictest0-21swapper/100:20:111
2205599143,10cyclictest0-21swapper/019:25:100
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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