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2026-02-26 - 18:44
[ 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 #a, slot #5

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 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.

Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes
Compare latency of primary with shadow system
Characteristics of the highest latencies:
System rackaslot5s.osadl.org (updated Thu Feb 26, 2026 12:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
811190,0rcu_preempt9950irq/345-484840012:28:541
811070,0rcu_preempt6248-21kworker/1:009:44:151
811020,0rcu_preempt19-21ksoftirqd/111:29:411
811020,0rcu_preempt19-21ksoftirqd/111:29:411
81970,0rcu_preempt19235-1kworker/1:2H09:56:571
81750,0rcu_preempt19-21ksoftirqd/112:05:181
81730,0rcu_preempt3-21ksoftirqd/010:09:250
81680,0rcu_preempt5150-1kworker/1:1H12:29:481
2951999682,0cyclictest0-21swapper/011:10:580
2951999676,0cyclictest2341850kworker/0:3H10:03:460
2951999672,0cyclictest4689-21munin-node0
2951999671,0cyclictest9080-21munin-node0
2951999671,0cyclictest30647-1kworker/0:3H10:45:250
2951999671,0cyclictest21880-1kworker/0:0H09:29:330
2951999662,0cyclictest8915-21munin-node0
2951999661,0cyclictest14646-21df_inode09:19:310
81650,0rcu_preempt9950irq/345-484840010:24:321
81650,0rcu_preempt19-21ksoftirqd/109:49:571
81650,0rcu_preempt14274-21ssh10:57:151
2951999652,0cyclictest24728-21runrttasks10:34:430
2951999652,0cyclictest0-21swapper/011:29:250
2951999652,0cyclictest0-21swapper/011:29:250
81630,0rcu_preempt9950irq/345-484840010:38:321
2951999638,0cyclictest15520-1kworker/0:1H11:35:180
2951999634,0cyclictest19036-21sh10:29:300
2951999631,0cyclictest19236-1kworker/0:2H09:59:140
2951999631,0cyclictest10657-21munin-node0
81620,0rcu_preempt19-21ksoftirqd/111:24:501
2951999621,0cyclictest5614-21taskset11:20:480
2951999621,0cyclictest5614-21taskset11:20:480
2951999621,0cyclictest30973-21munin-node0
81610,0rcu_preempt19-21ksoftirqd/110:50:491
81610,0rcu_preempt19-21ksoftirqd/110:41:511
2951999612,0cyclictest7438-21ssh10:49:440
2951999612,0cyclictest54-21kswapd010:54:350
2951999612,0cyclictest29658-21munin-node0
2951999612,0cyclictest0-21swapper/012:29:120
2951999612,0cyclictest0-21swapper/011:51:180
2951999612,0cyclictest0-21swapper/010:24:270
2951999612,0cyclictest0-21swapper/009:38:560
2951999611,0cyclictest12743-1kworker/0:2H12:05:050
29519996110,0cyclictest11031-21missed_timers07:49:460
81600,0rcu_preempt0-21swapper/110:44:261
2951999602,0cyclictest9851-21taskset09:14:330
2951999602,0cyclictest5743-21apt-get11:54:260
2951999602,0cyclictest0-21swapper/009:27:040
81590,0rcu_preempt19-21ksoftirqd/109:11:281
2951999593,0cyclictest0-21swapper/010:41:510
2951999592,0cyclictest7448-21sh09:44:380
2951999592,0cyclictest0-21swapper/012:23:210
2951999592,0cyclictest0-21swapper/009:39:200
2951999592,0cyclictest0-21swapper/009:12:370
2951999591,0cyclictest11682-21apt-get09:49:270
81580,0rcu_preempt3-21ksoftirqd/008:49:290
2951999588,0cyclictest21798-21cron08:24:150
2951999588,0cyclictest1470-21runrttasks07:29:300
2951999581,0cyclictest26860-21munin-node0
2951999581,0cyclictest16102-21apt-get10:59:260
2951999581,0cyclictest16102-21apt-get10:59:260
2951999581,0cyclictest0-21swapper/011:48:280
10050580,0irq/346-48484006607-1kworker/1:2H10:17:311
2951999577,0cyclictest20407-1kworker/0:2H11:39:430
2951999572,0cyclictest54-21kswapd011:24:430
2951999572,0cyclictest20547-21ssh12:09:260
2951999572,0cyclictest14787-21ping08:14:310
2951999572,0cyclictest0-21swapper/011:05:500
29519995715,0cyclictest27925-21ssh12:16:180
2951999571,0cyclictest28718-21df08:44:280
81560,0rcu_preempt19-21ksoftirqd/112:34:271
2951999563,0cyclictest0-21swapper/008:09:440
2951999562,0cyclictest0-21swapper/007:34:400
2951999561,0cyclictest11612-1kworker/0:0H07:54:320
81550,0rcu_preempt3-21ksoftirqd/008:54:370
81550,0rcu_preempt19-21ksoftirqd/109:24:431
2951999553,0cyclictest0-21swapper/008:59:510
29519995517,0cyclictest0-21swapper/008:29:350
2951999551,0cyclictest27115-21dropbear08:39:310
2951999542,0cyclictest9972-1kworker/0:1H08:04:380
2951999542,0cyclictest512-21apt-get07:19:240
2951999542,0cyclictest14787-21ping08:24:430
2951999541,0cyclictest13735-21awk12:34:400
81530,0rcu_preempt24989-21kworker/0:109:04:420
2951999532,0cyclictest341-21ping07:39:260
2951999532,0cyclictest341-21ping07:24:280
2951999532,0cyclictest25922-21ntpq08:34:400
10050530,0irq/346-484840029485-21rm10:07:011
10050530,0irq/346-484840020408-1kworker/1:0H11:39:361
81520,0rcu_preempt851-21rngd07:04:261
81520,0rcu_preempt19-21ksoftirqd/111:59:291
2951999529,0cyclictest0-21swapper/007:19:150
2951999522,0cyclictest341-21ping07:44:270
2951999511,0cyclictest13910-21df07:59:290
10050510,0irq/346-484840054-21kswapd009:59:561
9950500,0irq/345-48484007772-1kworker/1:2H12:14:311
9950480,0irq/345-484840021449-1kworker/1:2H10:32:551
81480,0rcu_preempt3981-21cat11:19:331
81480,0rcu_preempt3981-21cat11:19:331
10050480,0irq/346-484840031325-21ssh11:14:341
9950470,0irq/345-484840054-21kswapd008:19:261
81470,0rcu_preempt25396-21kworker/1:111:50:391
81470,0rcu_preempt19-21ksoftirqd/112:19:251
81470,0rcu_preempt19-21ksoftirqd/108:24:421
10050470,0irq/346-4848400851-21rngd11:11:161
81460,0rcu_preempt3-21ksoftirqd/007:04:390
81460,0rcu_preempt21429-21kworker/1:208:54:341
81460,0rcu_preempt19-21ksoftirqd/111:56:531
81460,0rcu_preempt19-21ksoftirqd/108:09:281
10050460,0irq/346-484840018377-21ssh11:34:261
81450,0rcu_preempt27563-21grep08:39:381
81450,0rcu_preempt19-21ksoftirqd/110:19:311
10050450,0irq/346-48484007011-1kworker/1:3H09:17:241
81440,0rcu_preempt19-21ksoftirqd/111:44:481
81440,0rcu_preempt19-21ksoftirqd/107:49:391
81440,0rcu_preempt19-21ksoftirqd/107:19:371
10050440,0irq/346-484840025110-21taskset11:08:261
81430,0rcu_preempt6927-21cpu09:44:291
81430,0rcu_preempt341-21ping07:39:411
81430,0rcu_preempt341-21ping07:34:271
81430,0rcu_preempt19-21ksoftirqd/109:19:381
81430,0rcu_preempt19-21ksoftirqd/108:29:351
81430,0rcu_preempt19-21ksoftirqd/108:14:321
81430,0rcu_preempt19-21ksoftirqd/108:04:361
81430,0rcu_preempt19-21ksoftirqd/107:29:271
81430,0rcu_preempt19-21ksoftirqd/107:24:371
81420,0rcu_preempt6889-21kworker/1:210:09:491
81420,0rcu_preempt19-21ksoftirqd/111:01:131
81420,0rcu_preempt19-21ksoftirqd/111:01:131
81420,0rcu_preempt19-21ksoftirqd/108:59:381
81420,0rcu_preempt19-21ksoftirqd/108:34:351
81420,0rcu_preempt19-21ksoftirqd/108:01:251
81420,0rcu_preempt19-21ksoftirqd/107:44:461
81410,0rcu_preempt6248-21kworker/1:009:36:171
81410,0rcu_preempt19-21ksoftirqd/109:29:251
81410,0rcu_preempt0-21swapper/107:14:341
10050410,0irq/346-48484000-21swapper/112:09:561
81400,0rcu_preempt2732-21apt-get09:04:251
81400,0rcu_preempt19-21ksoftirqd/108:49:361
81390,0rcu_preempt19-21ksoftirqd/108:44:261
81390,0rcu_preempt19-21ksoftirqd/107:09:251
10050390,0irq/346-484840012095-21cut07:54:271
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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