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2026-01-31 - 07:22
[ 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 #2, slot #7

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 50 highest latencies:
System rack2slot7s.osadl.org (updated Fri Jan 30, 2026 19:55:21)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3636003996345,15cyclictest263170-21sh18:10:290
3636003995749,5cyclictest151ktimers/017:55:130
3636003995441,10cyclictest12450irq/32-eth017:25:150
3636005995244,5cyclictest3866661-21expr17:40:012
3636005995240,8cyclictest259263-21multi.sh18:10:172
3636004995241,7cyclictest259585-21sh18:10:181
3636003995243,6cyclictest223076-21sh18:08:490
3636003995243,6cyclictest223076-21sh18:08:490
3636004995143,5cyclictest3914039-21sh17:42:121
3636004995143,5cyclictest253979-21sh18:10:031
3636004995143,5cyclictest253979-21sh18:10:031
3636003995138,10cyclictest3639056-21munin-run17:15:000
3636003995044,4cyclictest3868388-21sh17:40:090
3636003995041,6cyclictest3948203-21execl17:50:180
3636003995041,6cyclictest3948203-21execl17:50:180
3636005994941,5cyclictest2320831-21cups-browsed18:10:032
3636005994941,5cyclictest2320831-21cups-browsed18:10:032
3636003994839,6cyclictest3947341-21execl17:50:020
3636004994537,5cyclictest3637505-21systemd-run17:10:011
3636004994536,6cyclictest763-21snmpd18:25:031
3636003994531,11cyclictest3866791-21multi.sh17:40:020
3636005994435,6cyclictest4158427-21spawn18:03:382
3636005994435,5cyclictest3912854-21sh17:42:092
3636003994436,5cyclictest3952261-21Run18:01:050
3636004994337,3cyclictest0-21swapper/117:50:031
3636004994335,5cyclictest3866614-21sort17:40:011
3636005994234,4cyclictest3947338-21execl17:50:012
3636005994233,5cyclictest331995-21systemd-run18:35:012
363600599421,32cyclictest3642326-21fstime17:25:142
3636005994131,7cyclictest564-21dbus-daemon18:19:572
3636004994133,5cyclictest3948207-21execl17:50:171
3636004994133,5cyclictest3948207-21execl17:50:171
3636004994129,8cyclictest3950465-21fstime17:56:091
3636005993934,2cyclictest0-21swapper/218:40:002
3636005993932,4cyclictest0-21swapper/218:00:022
3636005993931,5cyclictest3948203-21execl17:50:232
3636005993931,5cyclictest3948203-21execl17:50:232
3636004993930,6cyclictest4030570-21spawn18:03:071
3636003993919,16cyclictest151ktimers/018:20:060
3636005993829,5cyclictest3830212-21systemd-run17:35:022
3636003993729,5cyclictest3830139-21cron17:35:010
3636003993629,5cyclictest333416-21basename18:40:000
3636003993519,13cyclictest331553-21unixbench_singl18:30:190
3636003993516,3cyclictest171rcu_preempt17:05:120
3636004993428,3cyclictest0-21swapper/117:15:011
3636003993426,4cyclictest0-21swapper/017:05:010
3636005993326,4cyclictest3642273-21cron17:25:022
3636004993327,3cyclictest0-21swapper/117:35:021
3636004993326,4cyclictest333416-21basename18:40:001
3636004993325,5cyclictest327443-21cron18:20:001
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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