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2026-08-26 - 05:49
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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 rackcslot4.osadl.org (updated Wed Aug 26, 2026 00:44:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
32973662309274,20sleep10-21swapper/119:08:361
32973932291257,19sleep00-21swapper/019:08:530
136599640,4rtkit-daemon1364-21rtkit-daemon22:55:110
136599620,4rtkit-daemon1364-21rtkit-daemon21:15:401
136599580,26rtkit-daemon3406798-21python322:35:020
136599570,3rtkit-daemon0-21swapper/120:35:280
136599570,3rtkit-daemon0-21swapper/120:35:270
136599560,4rtkit-daemon1364-21rtkit-daemon21:34:450
136599560,4rtkit-daemon1364-21rtkit-daemon00:25:130
136599550,3rtkit-daemon1364-21rtkit-daemon23:10:431
136599530,4rtkit-daemon1364-21rtkit-daemon20:35:211
136599530,4rtkit-daemon1364-21rtkit-daemon20:35:201
136599520,4rtkit-daemon1364-21rtkit-daemon23:02:381
136599520,4rtkit-daemon1364-21rtkit-daemon19:56:590
136599510,4rtkit-daemon1364-21rtkit-daemon22:45:310
136599510,4rtkit-daemon1364-21rtkit-daemon19:19:150
3297641994711,15cyclictest3312366-21/usr/sbin/munin19:45:170
3297641994711,15cyclictest3312366-21/usr/sbin/munin19:45:160
136599470,5rtkit-daemon1364-21rtkit-daemon20:14:040
329764199467,12cyclictest3449434-21apt-get23:35:120
329764199463,18cyclictest3403502-21grep22:30:010
136599460,3rtkit-daemon1364-21rtkit-daemon23:28:070
329764199454,9cyclictest3357382-21munin-run21:25:000
329764199448,12cyclictest3438312-21apt-get23:20:070
329764199448,11cyclictest3346884-21apt-get21:10:130
3297641994411,11cyclictest3335254-21/usr/sbin/munin20:40:210
136599440,4rtkit-daemon1364-21rtkit-daemon23:49:540
136599440,3rtkit-daemon1364-21rtkit-daemon19:26:020
329764199438,11cyclictest3378727-21apt-get21:55:120
3297645994213,9cyclictest26-21ksoftirqd/100:15:011
329764199427,13cyclictest1-21systemd00:10:010
329764199426,11cyclictest3466642-21apt-get00:00:150
3297641994211,13cyclictest3475723-21ssh00:13:440
3297645994113,10cyclictest26-21ksoftirqd/119:30:001
329764199419,13cyclictest3384548-21ssh22:03:080
329764199415,20cyclictest3417831-21apt-get22:50:130
329764199414,11cyclictest3298728-21plymouth19:10:220
329764199409,13cyclictest3391193-21sh22:10:550
329764199408,13cyclictest3373983-21seq21:47:460
329764199406,19cyclictest3364727-21apt-get21:35:120
329764199405,20cyclictest3445935-21apt-get23:30:160
329764199405,19cyclictest3375210-21apt-get21:50:140
329764199404,21cyclictest3368289-21apt-get21:40:130
329764199404,12cyclictest3350534-21apt-get21:15:150
329764199404,10cyclictest3456069-21munin-run23:45:000
329764199399,13cyclictest3428158-21cpu23:05:120
329764199399,10cyclictest3490298-21ssh00:35:090
329764199397,11cyclictest3308787-21/usr/sbin/munin19:35:200
329764199394,20cyclictest3476484-21apt-get00:15:150
329764199389,13cyclictest3481426-21ssh00:20:440
329764199389,13cyclictest3481426-21ssh00:20:440
329764199389,10cyclictest3459928-21cstates23:50:150
329764199388,11cyclictest3386228-21sed22:05:220
329764199385,14cyclictest3394164-21sed22:15:240
329764199385,12cyclictest3307284-21sed19:30:250
329764199385,11cyclictest3431539-21apt-get23:10:130
329764199385,11cyclictest3403637-21apt-get22:30:140
329764199384,22cyclictest3320592-21sed20:05:200
329764199384,20cyclictest3340486-21apt-get20:55:130
329764199384,20cyclictest3328284-21apt-get20:25:130
329764199384,11cyclictest3463174-21apt-get23:55:120
136599380,3rtkit-daemon0-21swapper/022:44:141
329764199379,9cyclictest3427553-21ssh23:04:070
329764199375,20cyclictest3345063-21sed21:05:280
329764199375,20cyclictest3303337-21sed19:20:220
329764199374,17cyclictest3358415-21ntp_states21:25:220
136599370,3rtkit-daemon0-21swapper/022:28:531
329764599366,9cyclictest26-21ksoftirqd/120:20:001
3297645993624,4cyclictest26-21ksoftirqd/119:20:011
3297645993616,5cyclictest26-21ksoftirqd/122:15:131
329764199368,9cyclictest3412766-21seq22:41:320
329764199367,9cyclictest3489615-21seq00:33:510
329764199367,10cyclictest3397877-21unixbench_singl22:20:230
329764199365,18cyclictest3435824-21ntp_kernel_pll_23:15:200
329764199365,11cyclictest3343686-21awk21:00:240
329764199364,20cyclictest3337654-21cat20:45:250
329764199364,11cyclictest3311232-21sed19:40:240
3297645993512,5cyclictest26-21ksoftirqd/100:22:521
3297645993512,5cyclictest26-21ksoftirqd/100:22:521
329764199356,8cyclictest3315871-21munin-run19:55:000
329764199354,11cyclictest3319076-21sed20:00:230
136599350,5rtkit-daemon3478402-21ssh00:16:521
136599350,5rtkit-daemon3423150-21ssh22:56:511
136599350,4rtkit-daemon0-21swapper/022:32:181
3297645993413,11cyclictest26-21ksoftirqd/123:40:231
3297645993412,3cyclictest26-21ksoftirqd/123:53:291
3297645993411,4cyclictest26-21ksoftirqd/121:30:251
329764199347,10cyclictest3324520-21expr20:15:150
329764199344,12cyclictest3326485-21expr20:20:150
3297641993418,9cyclictest3330249-21apt-get20:30:120
136599340,3rtkit-daemon1364-21rtkit-daemon23:07:371
329764599330,17cyclictest26-21ksoftirqd/123:20:071
329764199334,13cyclictest3339641-21sed20:50:300
3297645993212,9cyclictest26-21ksoftirqd/119:35:011
3297645993212,4cyclictest26-21ksoftirqd/122:05:171
136599320,3rtkit-daemon0-21swapper/023:31:541
136599320,3rtkit-daemon0-21swapper/021:48:511
136599320,3rtkit-daemon0-21swapper/019:24:151
329764599319,3cyclictest141rcu_preempt21:09:361
329764599317,9cyclictest26-21ksoftirqd/100:05:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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