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2026-01-26 - 11:05
[ 290.152] (II) VESA: driver for VESA chipsets: vesa
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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
Compare latency of primary with shadow system
Characteristics of the 50 highest latencies:
System rackbslot7.osadl.org (updated Mon Jan 26, 2026 00:44:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
285621197,16sleep00-21swapper/019:07:230
285621197,16sleep00-21swapper/019:07:230
3061991184,44cyclictest22113-21cat20:03:520
3061991173,101cyclictest22220-21apt-get21:28:390
3061991089,37cyclictest16840-21apt-get19:48:400
3061991089,37cyclictest16840-21apt-get19:48:400
291421067,16sleep10-21swapper/119:08:091
291421067,16sleep10-21swapper/119:08:091
306199973,74cyclictest3202-21ssh22:43:590
306199973,74cyclictest3202-21ssh22:43:590
306499963,62cyclictest0-21swapper/322:43:433
306499963,62cyclictest0-21swapper/322:43:433
3063999571,18cyclictest25591-21latency_hist21:33:272
293129512,51sleep30-21swapper/319:08:243
293129512,51sleep30-21swapper/319:08:243
3061999462,12cyclictest181rcu_preempt22:23:370
3061999462,12cyclictest181rcu_preempt22:23:370
306199924,44cyclictest25755-21ssh21:33:340
3062999164,21cyclictest31544-21unixbench_multi00:24:021
3061999164,19cyclictest2176-21apt-key20:43:280
3063998871,10cyclictest0-21swapper/222:43:422
3063998871,10cyclictest0-21swapper/222:43:422
3062998862,18cyclictest3114-21ssh21:48:591
3062998862,18cyclictest3114-21ssh21:48:591
3061998871,12cyclictest3059-21cyclictest19:14:020
3061998555,20cyclictest3905-21latency_hist20:48:270
3061998528,43cyclictest11345-21diskmemload22:03:400
3061998451,13cyclictest181rcu_preempt20:53:370
3061998421,17cyclictest181rcu_preempt00:23:260
3063998362,15cyclictest11600-21fschecks_time22:03:472
3063998356,19cyclictest1-21systemd22:43:252
306299834,59cyclictest3056-21apt-get22:43:421
306299834,59cyclictest3056-21apt-get22:43:421
3061998354,10cyclictest181rcu_preempt19:58:380
3063998266,12cyclictest3059-21cyclictest00:29:012
306299827,55cyclictest26124-21kworker/u17:1+ext4-rsv-conversion20:43:451
3061998249,25cyclictest9366-21latency_hist23:48:270
3061998249,25cyclictest9366-21latency_hist23:48:270
306199824,38cyclictest15514-21latency_hist23:58:270
306199824,38cyclictest15514-21latency_hist23:58:270
3061998241,33cyclictest0-21swapper/022:50:550
306499814,41cyclictest9538-21taskset22:53:503
3062998139,11cyclictest8291-21grep19:23:241
3063998056,14cyclictest6433-21latency_hist23:43:262
3063998040,31cyclictest8798-21cat21:03:272
306399802,68cyclictest16339-21apt-get19:48:382
306399802,68cyclictest16339-21apt-get19:48:382
3062998042,28cyclictest1839-21kworker/u18:1+nfsiod21:17:551
3061998060,11cyclictest0-21swapper/022:38:360
3061998056,14cyclictest26890-21ssh23:23:270
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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