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2026-02-25 - 15:26
[ 290.152] (II) VESA: driver for VESA chipsets: vesa

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #7, slot #4

Rack #0/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #1/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #2/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #3/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #4/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #5/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #6/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #7/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #8/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #9/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #a/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #b/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #c/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #d/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #e/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #f/#0 #1 #2 #3 #4 #5 #6 #7 #8 
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Click here to display the system's profile data or here to proceed to next system.
Click on a legend element to toggle display of that core, ctrl-click inverts display, shift-click enables all.

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 100 highest latencies:
System rack7slot4s.osadl.org (updated Wed Feb 25, 2026 12:45:08)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2589999551,44cyclictest3704-21sh12:05:121
2589999524,44cyclictest0-21swapper/110:45:131
25886995128,11cyclictest131rcu_preempt10:00:120
2589999501,33cyclictest32478-21ssh11:45:131
2589999491,39cyclictest12492-21ssh09:10:131
2589999466,36cyclictest30597-21ssh09:20:141
2588699464,11cyclictest131rcu_preempt08:40:120
25926994527,9cyclictest28366irq/58-eth010:15:133
2592699434,23cyclictest28366irq/58-eth010:00:123
2588699431,5cyclictest131rcu_preempt10:40:110
2592699412,23cyclictest28366irq/58-eth010:30:123
25912994117,18cyclictest31628-21ssh10:15:132
25912994030,5cyclictest6289-21kworker/u8:010:55:132
2591299402,19cyclictest17370-21ssh10:25:152
25926993916,15cyclictest28366irq/58-eth010:55:143
25912993923,13cyclictest0-21swapper/212:00:122
25899993920,11cyclictest21-21ksoftirqd/107:30:131
2589999391,8cyclictest31149-21apt-get10:15:041
2588699394,7cyclictest131rcu_preempt10:45:120
2591299384,25cyclictest1576-21ssh11:10:142
25912993818,16cyclictest25870-21cyclictest10:10:112
2589999381,30cyclictest24984-21sh11:05:141
2591299372,28cyclictest0-21swapper/209:35:152
2589999371,9cyclictest25415-21sort09:35:181
2591299362,18cyclictest8200-21ssh10:00:222
2589999365,8cyclictest9869-21tail08:00:181
2589999365,6cyclictest2282-21grep07:15:291
2589999362,25cyclictest30991-21ssh12:20:161
2591299352,16cyclictest17179-21cut10:05:212
2589999353,9cyclictest29094-21cut07:10:211
2589999353,9cyclictest15046-21kthreadcore08:05:181
2589999353,8cyclictest0-21swapper/110:35:121
2589999353,24cyclictest28717-21ssh11:25:131
2589999353,24cyclictest28717-21ssh11:25:131
2589999351,9cyclictest28766-21kthreadcore07:45:221
2589999351,9cyclictest15624-21kthreadcore12:10:221
2589999351,9cyclictest11837-21timerandwakeup07:25:281
2589999351,8cyclictest5666-21if_err_eth111:30:181
2589999351,8cyclictest5666-21if_err_eth111:30:181
2589999351,8cyclictest30299-21latency_hist09:20:021
2589999351,10cyclictest21828-21tr09:50:211
2589999351,10cyclictest17571-21tune2fs10:25:171
2589999350,10cyclictest23610-21kthreadcore07:40:191
2589999341,9cyclictest11704-21kthreadcore08:35:191
2589999341,8cyclictest19721-21tr07:35:201
2589999341,8cyclictest11236-21grep12:25:251
2589999341,7cyclictest27243-21cut08:15:211
2589999341,10cyclictest7939-21tr07:55:221
2589999341,10cyclictest17175-21tr11:00:211
2589999340,9cyclictest20712-21tr08:10:191
2589999340,9cyclictest12637-21irqcore10:40:161
2592699338,15cyclictest28366irq/58-eth008:50:123
2592699331,18cyclictest28366irq/58-eth007:40:133
2589999337,5cyclictest7676-21kthreadcore10:55:201
2589999336,5cyclictest13741-21ssh11:15:221
2589999331,9cyclictest32582-21timerandwakeup08:20:281
2589999331,9cyclictest30110-21kthreadcore12:00:211
2589999331,9cyclictest25849-21tr10:10:211
2589999331,9cyclictest1909-21fschecks_time09:40:161
2589999331,9cyclictest1893-21latency_hist12:40:011
2589999331,9cyclictest16297-21grep08:40:161
2589999331,9cyclictest10861-21ntp_states09:25:271
2589999331,8cyclictest5735-21grep10:00:181
2589999331,8cyclictest23051-21awk11:40:011
2589999331,8cyclictest20965-21irqcore08:45:181
2589999331,7cyclictest13710-21kthreadcore09:45:221
2589999331,6cyclictest1327-21ls08:25:141
2589999330,9cyclictest8525-21fschecks_time10:20:161
2589999330,9cyclictest6205-21diskstats08:30:141
2589999323,7cyclictest2651-21kthreadcore07:50:221
2589999321,9cyclictest31282-21ssh09:55:211
2589999321,9cyclictest30483-21latency_hist12:20:021
2589999321,9cyclictest29917-21/usr/sbin/munin10:30:221
2589999321,9cyclictest23280-21ssh11:20:231
2589999321,9cyclictest14068-21fschecks_time10:05:141
2589999321,8cyclictest6163-21ntp_states09:00:261
2589999321,7cyclictest30337-21cpuspeed10:50:141
2589999320,8cyclictest10320-21latency_hist11:15:011
2592699314,17cyclictest33-21ksoftirqd/312:10:123
2589999311,9cyclictest23548-21ssh11:40:151
2589999311,9cyclictest18698-21cut11:55:171
2589999311,9cyclictest16052-21ssh09:30:111
2589999311,10cyclictest9190-21grep11:50:161
2589999310,8cyclictest12104-21idleruntime-cro09:10:011
2588699311,21cyclictest3710-21ssh12:05:120
2591299303,22cyclictest0-21swapper/212:19:212
2591299303,17cyclictest22346irq/40-dwc2_hso08:25:132
2589999301,9cyclictest20299-21grep12:30:251
2588699307,17cyclictest22208-21grep09:50:200
2592699292,19cyclictest28366irq/58-eth011:15:143
2591299293,14cyclictest22346irq/40-dwc2_hso09:10:132
2591299292,17cyclictest25537-21ssh12:35:132
2591299292,11cyclictest22117-21ssh09:50:212
2589999291,9cyclictest28185-21kthreadcore08:50:201
2588699293,20cyclictest21749-21ssh12:15:130
2592699283,17cyclictest0-21swapper/309:50:213
2591299285,17cyclictest22346irq/40-dwc2_hso08:50:122
2591299285,13cyclictest22346irq/40-dwc2_hso09:15:142
2591299282,10cyclictest7210-21ssh11:48:222
2589999281,9cyclictest30375-21fschecks_count08:55:161
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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