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2025-12-17 - 08:44
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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 17, 2025 00:43:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2804527461,8sleep10-21swapper/119:05:221
2848527149,8sleep00-21swapper/019:09:110
244482660,0sleep024447-21seq21:45:170
77592620,1sleep10-21swapper/123:50:161
28744993333,0cyclictest0-21swapper/120:20:591
2874499300,29cyclictest0-21swapper/121:45:131
2874499280,26cyclictest23893-21kworker/1:223:21:141
28743992827,1cyclictest0-21swapper/023:35:530
2874399280,27cyclictest0-21swapper/019:14:280
28743992626,0cyclictest0-21swapper/021:58:290
28743992610,5cyclictest0-21swapper/023:15:120
28743992523,2cyclictest0-21swapper/020:04:240
2874499243,20cyclictest0-21swapper/123:30:111
28744992423,1cyclictest0-21swapper/100:20:331
28744992410,12cyclictest0-21swapper/121:32:021
2874499235,10cyclictest0-21swapper/121:05:131
28744992310,8cyclictest0-21swapper/100:00:141
2874499230,22cyclictest4528-21kworker/1:023:05:541
28743992321,1cyclictest5319-21hwlatdetect23:45:130
28743992310,4cyclictest0-21swapper/020:10:370
2874399230,12cyclictest0-21swapper/020:40:230
2874499228,7cyclictest0-21swapper/121:25:221
2874499226,13cyclictest0-21swapper/119:55:191
2874499223,16cyclictest0-21swapper/100:05:131
28744992216,4cyclictest0-21swapper/122:35:111
28744992210,8cyclictest0-21swapper/122:10:101
28744992210,6cyclictest0-21swapper/120:35:091
2874399224,8cyclictest0-21swapper/019:40:210
28743992210,6cyclictest0-21swapper/000:20:030
2874499214,11cyclictest0-21swapper/123:55:201
28744992116,2cyclictest28741-21cyclictest19:54:451
28744992113,4cyclictest0-21swapper/120:40:201
28744992110,4cyclictest0-21swapper/120:33:541
28743992110,6cyclictest0-21swapper/023:05:170
28743992110,6cyclictest0-21swapper/020:20:170
28743992110,3cyclictest0-21swapper/021:35:210
28743992110,0cyclictest0-21swapper/019:45:160
342422010,0sleep00-21swapper/020:50:200
2874499207,9cyclictest16295-21munin-run00:14:591
2874499206,8cyclictest0-21swapper/123:15:111
28744992020,0cyclictest0-21swapper/119:46:101
28744992018,1cyclictest437-21apache219:26:141
28744992013,3cyclictest7422-21ls22:25:181
28744992011,4cyclictest437-21apache200:35:081
28744992010,8cyclictest0-21swapper/121:35:181
28744992010,5cyclictest0-21swapper/119:30:121
28744992010,4cyclictest0-21swapper/121:20:121
28744992010,3cyclictest0-21swapper/120:10:221
2874499200,16cyclictest0-21swapper/119:10:191
2874399204,12cyclictest0-21swapper/019:50:120
28743992020,0cyclictest0-21swapper/022:43:440
28743992019,1cyclictest0-21swapper/000:00:520
28743992017,1cyclictest81ktimersoftd/019:35:170
28743992016,3cyclictest411-21apache223:50:350
28743992016,2cyclictest437-21apache221:40:200
28743992010,6cyclictest0-21swapper/021:50:130
28743992010,4cyclictest0-21swapper/020:05:150
28743992010,3cyclictest0-21swapper/021:15:180
2874399200,19cyclictest0-21swapper/022:36:400
2874499196,3cyclictest4888-21df_inode22:20:131
2874499194,8cyclictest0-21swapper/123:10:151
2874499193,8cyclictest0-21swapper/122:40:181
2874499193,6cyclictest0-21swapper/100:15:151
2874499193,4cyclictest21365-21/usr/sbin/munin20:15:141
2874499193,10cyclictest0-21swapper/123:25:101
28744991918,1cyclictest802-21apache221:59:321
28744991911,4cyclictest15951-21fschecks_time20:00:111
28744991910,6cyclictest0-21swapper/120:55:111
28744991910,5cyclictest0-21swapper/120:45:091
28744991910,4cyclictest0-21swapper/122:00:101
28744991910,4cyclictest0-21swapper/121:54:461
28744991910,3cyclictest0-21swapper/122:15:101
28744991910,3cyclictest0-21swapper/120:05:111
28744991910,3cyclictest0-21swapper/100:25:111
28744991910,0cyclictest0-21swapper/120:26:541
2874399196,8cyclictest0-21swapper/022:20:120
2874399193,7cyclictest0-21swapper/022:50:160
28743991919,0cyclictest0-21swapper/020:26:060
28743991914,4cyclictest585-21gmain19:30:360
28743991912,5cyclictest0-21swapper/022:10:120
28743991910,8cyclictest0-21swapper/021:34:250
28743991910,7cyclictest0-21swapper/022:00:100
28743991910,2cyclictest0-21swapper/019:55:100
28743991910,2cyclictest0-21swapper/019:15:100
2874399190,12cyclictest0-21swapper/022:05:120
2874499189,6cyclictest100150irq/106-eth1-rx23:37:481
2874499184,9cyclictest0-21swapper/121:00:121
2874499184,5cyclictest2054-21idleruntime-cro19:24:591
28744991810,0cyclictest0-21swapper/119:36:121
2874399188,4cyclictest437-21apache200:05:160
28743991817,0cyclictest81ktimersoftd/020:35:150
28743991813,2cyclictest0-21swapper/022:55:100
28743991811,5cyclictest411-21apache223:20:030
28743991810,3cyclictest0-21swapper/020:15:160
28743991810,3cyclictest0-21swapper/019:25:120
1767621810,0sleep10-21swapper/122:52:371
1168221810,0sleep10-21swapper/121:13:001
2874499173,6cyclictest0-21swapper/123:40:191
2874499172,9cyclictest0-21swapper/121:40:201
28744991711,2cyclictest0-21swapper/119:40:141
28744991710,3cyclictest0-21swapper/123:45:131
2874399177,5cyclictest3589-21cut23:40:150
2874399172,7cyclictest0-21swapper/000:35:160
28743991711,4cyclictest0-21swapper/022:45:130
28743991710,7cyclictest0-21swapper/000:33:510
28743991710,4cyclictest27802-21ls20:30:160
28743991710,3cyclictest0-21swapper/023:55:110
28743991710,3cyclictest0-21swapper/023:00:110
28743991710,3cyclictest0-21swapper/022:25:170
28743991710,3cyclictest0-21swapper/000:25:180
28743991710,2cyclictest0-21swapper/000:10:180
28743991710,1cyclictest0-21swapper/021:10:130
1335221710,0sleep10-21swapper/121:15:291
2874499165,6cyclictest18399-21/usr/sbin/munin22:55:131
28744991610,3cyclictest100150irq/106-eth1-rx22:30:121
28744991610,3cyclictest0-21swapper/119:15:101
28744991610,2cyclictest0-21swapper/100:30:121
2874399162,8cyclictest0-21swapper/022:30:100
28743991610,3cyclictest0-21swapper/021:25:120
2874399160,11cyclictest0-21swapper/019:20:100
1423921610,1sleep10-21swapper/122:45:041
28744991510,2cyclictest0-21swapper/120:52:071
28744991510,0cyclictest91rcu_preempt22:09:551
2874399153,8cyclictest100350irq/108-eth1-tx23:30:070
28743991515,0cyclictest0-21swapper/022:16:510
28743991511,2cyclictest100250irq/107-eth1-rx00:16:220
28743991510,5cyclictest0-21swapper/020:47:390
28743991510,3cyclictest0-21swapper/023:12:040
28743991510,2cyclictest0-21swapper/020:55:200
28743991510,1cyclictest0-21swapper/023:25:130
28743991510,0cyclictest0-21swapper/021:20:340
28744991410,1cyclictest0-21swapper/123:00:441
28743991410,0cyclictest6460-21cstates21:00:120
28743991310,1cyclictest0-21swapper/021:05:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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