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2026-02-12 - 02:43
[ 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 #1, slot #2

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 rack1slot2s.osadl.org (updated Thu Feb 12, 2026 00:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1336329186,0sleep00-21swapper/019:02:250
1350727775,0sleep20-21swapper/219:04:032
1313523725,0sleep10-21swapper/118:59:461
304450350,0irq/25-eth10-21swapper/318:59:383
13597991010,0cyclictest0-21swapper/021:05:250
4160,0ktimersoftd/00-21swapper/022:33:230
339960,0migration/3968-21sh22:55:303
339960,0migration/38973-21sh23:21:003
339960,0migration/330119-21kthreadcore23:14:323
339960,0migration/320258-21kernelversion22:49:313
339960,0migration/317095-21sh23:05:263
29725060,0irq/27-eth0-tx-20084-21munin-node21:09:362
29715060,0irq/26-eth0-rx-11406-21iostat_ios23:24:333
149960,0migration/012286-21kthreadcore23:04:330
136009960,0cyclictest0-21swapper/222:38:352
135989960,0cyclictest0-21swapper/119:24:281
135989960,0cyclictest0-21swapper/100:29:321
135979966,0cyclictest13912-21kthreadcore19:49:330
135979963,0cyclictest3202-21munin-run20:09:170
8215050,0irq/24-0000:00:20230-21latency_hist19:09:172
35150,0ktimersoftd/30-21swapper/320:04:413
339950,0migration/39943-21kthreadcore19:24:333
339950,0migration/39782-21aten_r1power_en00:04:293
339950,0migration/3871-21latency21:54:343
339950,0migration/35286-21idleruntime20:34:323
339950,0migration/331574-21kthreadcore19:39:333
339950,0migration/330789-21kthreadcore23:54:333
339950,0migration/328653-21irqcore22:14:313
339950,0migration/326289-21kthreadcore20:49:333
339950,0migration/325675-21latency_hist00:14:163
339950,0migration/323415-21latency_hist20:24:173
339950,0migration/323046-21latency20:44:343
339950,0migration/318793-21kthreadcore19:04:353
339950,0migration/318441-21kthreadcore19:54:343
339950,0migration/313441-21kthreadcore00:24:333
339950,0migration/310239-21aten_r1power_po20:14:283
339950,0migration/310030-21unixbench_singl21:39:403
29725050,0irq/27-eth0-tx-9584-21ssh22:41:022
29725050,0irq/27-eth0-tx-9584-21ssh22:41:022
29725050,0irq/27-eth0-tx-28966-21ssh21:54:322
29725050,0irq/27-eth0-tx-26776-21forks23:34:292
29725050,0irq/27-eth0-tx-25726-21munin-node00:14:382
29725050,0irq/27-eth0-tx-2280-21munin-node23:19:332
29725050,0irq/27-eth0-tx-22461-21munin-node19:59:390
29725050,0irq/27-eth0-tx-12865-21if_eth021:44:322
29725050,0irq/27-eth0-tx-0-21swapper/223:44:372
29725050,0irq/27-eth0-tx-0-21swapper/223:29:302
29725050,0irq/27-eth0-tx-0-21swapper/222:54:332
29725050,0irq/27-eth0-tx-0-21swapper/221:20:472
29725050,0irq/27-eth0-tx-0-21swapper/200:24:332
29725050,0irq/27-eth0-tx-0-21swapper/020:22:540
29725050,0irq/27-eth0-tx-0-21swapper/020:09:320
29725050,0irq/27-eth0-tx-0-21swapper/019:57:490
29715050,0irq/26-eth0-rx-9966-21ls21:19:393
29715050,0irq/26-eth0-rx-6559-21runrttasks22:01:353
29715050,0irq/26-eth0-rx-4173-21kthreadcore23:39:333
29715050,0irq/26-eth0-rx-3349-21forks22:39:303
29715050,0irq/26-eth0-rx-3349-21forks22:39:303
29715050,0irq/26-eth0-rx-2610-21if_eth1.323:59:293
29715050,0irq/26-eth0-rx-25775-21ntp_kernel_pll_21:29:363
29715050,0irq/26-eth0-rx-19229-21ps22:08:583
29715050,0irq/26-eth0-rx-13463-21kthreadcore21:44:333
29715050,0irq/26-eth0-rx-11345-21kernelversion23:44:313
29715050,0irq/26-eth0-rx-0-21swapper/323:34:333
29715050,0irq/26-eth0-rx-0-21swapper/323:29:333
29715050,0irq/26-eth0-rx-0-21swapper/323:09:263
29715050,0irq/26-eth0-rx-0-21swapper/322:44:283
29715050,0irq/26-eth0-rx-0-21swapper/322:34:213
29715050,0irq/26-eth0-rx-0-21swapper/322:19:233
29715050,0irq/26-eth0-rx-0-21swapper/321:50:093
29715050,0irq/26-eth0-rx-0-21swapper/321:36:453
29715050,0irq/26-eth0-rx-0-21swapper/321:26:373
29715050,0irq/26-eth0-rx-0-21swapper/300:21:133
27150,0ktimersoftd/20-21swapper/222:33:232
259950,0migration/25648-21kthreadcore20:09:322
259950,0migration/2414-21kthreadcore20:04:352
259950,0migration/231650-21kthreadcore22:14:332
259950,0migration/220321-21latency_hist19:09:172
259950,0migration/218913-21runrttasks21:06:562
259950,0migration/217668-21sh00:09:172
259950,0migration/211462-21idleruntime23:04:302
249950,0watchdog/228085-21munin-node19:39:312
19150,0ktimersoftd/10-21swapper/122:33:231
19150,0ktimersoftd/10-21swapper/120:04:411
179950,0migration/19964-21timerandwakeup21:19:391
179950,0migration/15922-21kthreadcore22:59:321
179950,0migration/1405-21kthreadcore19:39:331
179950,0migration/127176-21idleruntime23:34:301
179950,0migration/121200-21kthreadcore22:49:321
179950,0migration/119117-21fschecks_count23:09:281
179950,0migration/116684-21taskset23:46:091
179950,0migration/115820-21unixbench_singl00:04:411
179950,0migration/115577-21unixbench_singl00:24:391
179950,0migration/111422-21taskset21:43:381
179950,0migration/110192-21latency_hist23:24:161
169950,0watchdog/10-21swapper/122:19:351
149950,0migration/09858-21taskset22:20:510
149950,0migration/0911-21sh23:16:070
149950,0migration/08498-21sh23:40:360
149950,0migration/06015-21kthreadcore22:39:350
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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