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2026-02-24 - 15:42
[ 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 Tue Feb 24, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1160023824,0sleep00-21swapper/007:00:220
1172023625,0sleep10-21swapper/107:01:471
304450350,0irq/25-eth10-21swapper/306:59:433
1154923523,0sleep20-21swapper/206:59:482
35160,0ktimersoftd/326395-21mailstats07:58:283
339960,0migration/37789-21sh11:41:363
339960,0migration/316987-21sh09:05:173
339960,0migration/316596-21sh10:04:003
339960,0migration/314757-21sh12:25:243
29725060,0irq/27-eth0-tx-18767-21munin-node07:08:220
29715060,0irq/26-eth0-rx-7990-21sendmail_mailtr09:58:273
29715060,0irq/26-eth0-rx-25010-21ssh09:28:493
29715060,0irq/26-eth0-rx-24096-21ntp_kernel_err09:48:263
29715060,0irq/26-eth0-rx-1804-21ssh09:17:273
29715060,0irq/26-eth0-rx-14296-21kthreadcore09:23:223
29715060,0irq/26-eth0-rx-0-21swapper/312:08:193
149960,0migration/08066-21sh11:00:260
149960,0migration/06625-21kthreadcore08:58:230
149960,0migration/031203-21sh11:33:550
149960,0migration/024618-21sh10:30:130
149960,0migration/017562-21sh09:06:470
149960,0migration/016323-21sh10:24:170
149960,0migration/016113-21sh11:05:390
119109960,0cyclictest0-21swapper/212:10:142
339950,0migration/38079-21munin-node09:18:273
339950,0migration/3595-21smart_sda08:03:273
339950,0migration/33154-21taskset08:56:093
339950,0migration/331293-21missed_timers10:33:233
339950,0migration/326699-21aten_r1power_vo09:53:183
339950,0migration/32667-21munin-node08:08:233
339950,0migration/326145-21fschecks_time10:53:213
339950,0migration/325141-21taskset07:12:423
339950,0migration/325026-21aten_r1power_po11:33:163
339950,0migration/321902-21munin-node08:43:283
339950,0migration/320203-21fschecks_count07:33:193
339950,0migration/319854-21munin-node07:53:293
339950,0migration/318434-21munin-node10:48:183
339950,0migration/317412-21aten_r1power_vo11:08:183
339950,0migration/31627-21kthreadcore11:58:213
29725050,0irq/27-eth0-tx-4068-21kthreadcore11:58:222
29725050,0irq/27-eth0-tx-3248-21cut11:38:242
29725050,0irq/27-eth0-tx-32071-21munin-node07:18:240
29725050,0irq/27-eth0-tx-32071-21munin-node07:18:240
29725050,0irq/27-eth0-tx-27047-21cpuspeed_turbos09:33:172
29725050,0irq/27-eth0-tx-26391-21irqcore11:13:212
29725050,0irq/27-eth0-tx-25927-21munin-node11:33:202
29725050,0irq/27-eth0-tx-24594-21munin-node11:53:192
29725050,0irq/27-eth0-tx-18872-21cut10:48:192
29725050,0irq/27-eth0-tx-18412-21munin-node09:08:222
29725050,0irq/27-eth0-tx-15959-21munin-node12:28:222
29725050,0irq/27-eth0-tx-14758-21ssh11:03:242
29725050,0irq/27-eth0-tx-10591-21perl10:23:202
29725050,0irq/27-eth0-tx-0-21swapper/212:18:292
29725050,0irq/27-eth0-tx-0-21swapper/211:51:412
29725050,0irq/27-eth0-tx-0-21swapper/211:28:182
29725050,0irq/27-eth0-tx-0-21swapper/211:00:202
29725050,0irq/27-eth0-tx-0-21swapper/210:38:332
29725050,0irq/27-eth0-tx-0-21swapper/210:29:052
29725050,0irq/27-eth0-tx-0-21swapper/210:12:402
29725050,0irq/27-eth0-tx-0-21swapper/210:07:092
29725050,0irq/27-eth0-tx-0-21swapper/209:39:312
29725050,0irq/27-eth0-tx-0-21swapper/008:33:230
29715050,0irq/26-eth0-rx-7889-21kthreadcore07:23:223
29715050,0irq/26-eth0-rx-6559-21runrttasks10:25:223
29715050,0irq/26-eth0-rx-29303-21kthreadcore12:13:233
29715050,0irq/26-eth0-rx-26692-21munin-node10:13:213
29715050,0irq/26-eth0-rx-18885-21kthreadcore11:48:223
29715050,0irq/26-eth0-rx-17940-21grep12:28:223
29715050,0irq/26-eth0-rx-17900-21munin-node10:28:283
29715050,0irq/26-eth0-rx-17475-21kthreadcore07:28:233
29715050,0irq/26-eth0-rx-0-21swapper/312:18:193
29715050,0irq/26-eth0-rx-0-21swapper/311:28:253
29715050,0irq/26-eth0-rx-0-21swapper/311:03:193
29715050,0irq/26-eth0-rx-0-21swapper/310:58:243
29715050,0irq/26-eth0-rx-0-21swapper/310:18:253
29715050,0irq/26-eth0-rx-0-21swapper/310:08:153
29715050,0irq/26-eth0-rx-0-21swapper/309:38:233
29715050,0irq/26-eth0-rx-0-21swapper/309:08:193
29715050,0irq/26-eth0-rx-0-21swapper/308:18:243
27150,0ktimersoftd/20-21swapper/209:13:112
259950,0migration/2356-21sh10:14:372
259950,0migration/227190-21hwlatdetect07:38:212
259950,0migration/22255-21latency_hist09:18:062
259950,0migration/218141-21sh09:27:032
259950,0migration/212928-21kthreadcore09:43:232
249950,0watchdog/213991-21if_err_eth1.307:28:212
19150,0ktimersoftd/125197-21perf07:13:071
179950,0migration/111224-21kthreadcore11:43:231
169950,0watchdog/130824-21cat11:33:281
169950,0watchdog/121921-21unixbench_singl08:43:281
149950,0migration/09609-21kthreadcore12:23:210
149950,0migration/09575-21sh09:21:080
149950,0migration/07436-21aten_r1power_cu07:48:180
149950,0migration/06111-21kthreadcore10:38:220
149950,0migration/05011-21kthreadcore07:43:240
149950,0migration/04858-21kthreadcore09:38:230
149950,0migration/04364-21kthreadcore11:58:220
149950,0migration/0362-21munin-node08:03:240
149950,0migration/031284-21munin-node11:13:290
149950,0migration/030644-21kthreadcore08:53:220
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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