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2025-12-14 - 16:23
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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 Sun Dec 14, 2025 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2884421020,1sleep10-21swapper/109:45:171
3266526957,8sleep10-21swapper/107:06:071
3266426957,8sleep00-21swapper/007:06:060
81399330,1cyclictest91rcu_preempt07:45:001
812993010,17cyclictest0-21swapper/010:45:510
813992726,1cyclictest0-21swapper/111:02:511
812992626,0cyclictest0-21swapper/009:55:000
813992523,1cyclictest24335-21grep12:20:271
813992423,1cyclictest0-21swapper/110:48:151
81299244,13cyclictest0-21swapper/011:25:200
812992420,3cyclictest0-21swapper/007:45:110
813992310,8cyclictest0-21swapper/110:06:181
813992310,8cyclictest0-21swapper/109:20:131
81299236,13cyclictest0-21swapper/009:10:180
812992322,1cyclictest0-21swapper/012:05:260
812992319,2cyclictest13633-21gzip07:40:190
812992318,2cyclictest25540-21timerandwakeup09:35:210
813992210,8cyclictest0-21swapper/111:45:211
81299225,16cyclictest0-21swapper/010:15:050
812992219,2cyclictest0-21swapper/010:40:010
812992210,7cyclictest0-21swapper/007:35:020
812992210,11cyclictest0-21swapper/008:58:350
812992210,11cyclictest0-21swapper/008:58:350
81399213,10cyclictest1132-21tune2fs07:10:101
813992120,1cyclictest24-21ksoftirqd/109:36:301
813992110,5cyclictest0-21swapper/108:35:171
813992110,2cyclictest0-21swapper/108:05:131
813992110,1cyclictest0-21swapper/110:24:551
81299217,9cyclictest0-21swapper/012:10:190
81299214,13cyclictest0-21swapper/008:40:110
81299213,11cyclictest0-21swapper/011:05:120
812992119,2cyclictest10645-21apache208:47:070
812992110,6cyclictest0-21swapper/011:20:120
812992110,4cyclictest0-21swapper/008:35:000
81399205,9cyclictest0-21swapper/107:25:141
81399204,10cyclictest0-21swapper/111:25:181
81399202,12cyclictest1508-21kworker/1:107:50:201
813992015,5cyclictest10675-21apache208:50:191
813992013,5cyclictest10645-21apache210:18:501
813992010,3cyclictest0-21swapper/108:20:211
81399200,7cyclictest0-21swapper/108:55:131
81399200,7cyclictest0-21swapper/108:55:131
812992012,3cyclictest0-21swapper/009:05:010
812992010,6cyclictest0-21swapper/011:45:190
812992010,5cyclictest0-21swapper/011:50:160
812992010,5cyclictest0-21swapper/009:52:000
812992010,3cyclictest0-21swapper/008:30:000
81299200,5cyclictest0-21swapper/009:25:200
81399195,7cyclictest0-21swapper/109:50:131
81399193,7cyclictest26908-21apache_volume12:30:111
813991918,1cyclictest10645-21apache209:44:511
813991912,4cyclictest0-21swapper/109:55:191
813991910,4cyclictest0-21swapper/111:35:161
813991910,3cyclictest0-21swapper/112:15:181
813991910,3cyclictest0-21swapper/107:15:121
813991910,2cyclictest0-21swapper/111:30:151
81299194,8cyclictest0-21swapper/009:05:120
81299193,11cyclictest0-21swapper/012:20:170
812991910,3cyclictest0-21swapper/011:55:190
812991910,3cyclictest0-21swapper/010:27:210
812991910,1cyclictest0-21swapper/010:10:110
81299190,18cyclictest0-21swapper/007:17:210
81399189,8cyclictest231ktimersoftd/111:15:121
81399187,7cyclictest0-21swapper/108:00:111
81399187,6cyclictest0-21swapper/110:50:121
81399187,6cyclictest0-21swapper/110:50:121
81399183,9cyclictest0-21swapper/112:10:121
81399183,9cyclictest0-21swapper/108:10:211
81399182,12cyclictest0-21swapper/107:46:331
813991817,1cyclictest24-21ksoftirqd/107:30:131
813991816,1cyclictest31855-21apache_accesses08:30:111
813991811,2cyclictest0-21swapper/109:28:301
813991810,6cyclictest0-21swapper/110:14:341
813991810,4cyclictest0-21swapper/109:15:131
813991810,3cyclictest0-21swapper/111:40:131
813991810,3cyclictest0-21swapper/109:00:131
813991810,3cyclictest0-21swapper/107:35:141
81299184,10cyclictest0-21swapper/012:30:130
812991810,5cyclictest0-21swapper/011:30:080
812991810,4cyclictest0-21swapper/011:15:200
812991810,4cyclictest0-21swapper/009:20:170
81399177,7cyclictest0-21swapper/112:00:151
813991717,0cyclictest0-21swapper/107:20:451
813991710,4cyclictest0-21swapper/112:05:231
813991710,2cyclictest0-21swapper/110:35:131
81399170,9cyclictest13517-21/usr/sbin/munin09:05:161
81299173,5cyclictest24993-21apache_accesses12:25:110
81299172,11cyclictest0-21swapper/007:10:090
81299171,9cyclictest0-21swapper/010:55:120
812991711,3cyclictest0-21swapper/007:30:180
812991710,6cyclictest0-21swapper/011:40:030
812991710,5cyclictest0-21swapper/012:00:000
812991710,5cyclictest0-21swapper/008:10:130
812991710,4cyclictest0-21swapper/011:00:120
812991710,4cyclictest0-21swapper/010:00:130
812991710,3cyclictest0-21swapper/012:35:210
812991710,3cyclictest0-21swapper/009:45:210
812991710,3cyclictest0-21swapper/009:30:170
812991710,3cyclictest0-21swapper/008:00:100
812991710,3cyclictest0-21swapper/007:55:120
812991710,1cyclictest0-21swapper/007:55:000
81399163,9cyclictest0-21swapper/109:10:121
81399162,9cyclictest26445-21/usr/sbin/munin08:15:141
81399161,8cyclictest0-21swapper/112:35:131
813991615,1cyclictest25199-21df12:25:121
813991611,3cyclictest100150irq/106-eth1-rx10:25:211
813991610,6cyclictest0-21swapper/107:55:191
813991610,3cyclictest0-21swapper/111:10:131
813991610,2cyclictest0-21swapper/111:55:111
813991610,2cyclictest0-21swapper/108:45:121
81399160,6cyclictest22544-21apache_accesses09:30:111
81299163,8cyclictest0-21swapper/008:50:230
81299163,6cyclictest0-21swapper/010:45:010
81299161,9cyclictest0-21swapper/008:35:230
812991616,0cyclictest0-21swapper/010:05:180
812991610,4cyclictest0-21swapper/010:50:140
812991610,4cyclictest0-21swapper/010:50:140
812991610,4cyclictest0-21swapper/009:15:130
812991610,3cyclictest0-21swapper/011:10:150
812991610,3cyclictest0-21swapper/009:40:130
812991610,3cyclictest0-21swapper/008:05:110
812991610,2cyclictest0-21swapper/008:15:120
711721610,0sleep00-21swapper/011:36:010
813991511,3cyclictest17123-21kworker/1:110:58:331
813991510,3cyclictest0-21swapper/111:50:141
81399150,8cyclictest0-21swapper/108:40:201
812991510,5cyclictest0-21swapper/007:28:310
812991510,3cyclictest0-21swapper/012:15:130
812991510,2cyclictest0-21swapper/010:30:040
812991510,2cyclictest0-21swapper/007:25:010
812991510,1cyclictest0-21swapper/008:20:140
81399142,5cyclictest0-21swapper/110:00:211
81399142,4cyclictest0-21swapper/111:20:261
813991410,2cyclictest0-21swapper/110:30:111
81399140,11cyclictest0-21swapper/108:25:131
812991410,2cyclictest0-21swapper/010:21:310
1866021410,0sleep10-21swapper/110:43:261
81399135,7cyclictest0-21swapper/111:05:181
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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