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2026-02-22 - 04:56
[ 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 #e, 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.

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 50 highest latencies:
System rackeslot4s.osadl.org (updated Sun Feb 22, 2026 00:44:06)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
710257994839,6cyclictest881424-21cp21:55:001
710256994642,3cyclictest912816-21apt-get22:25:120
710257994335,5cyclictest1051868-21ntpq00:35:221
710265993935,3cyclictest767362-21kworker/u8:2+flush-259:020:20:212
710257993832,4cyclictest938562-21apt-get22:50:121
710256993835,2cyclictest840024-21kworker/u8:1+flush-259:021:45:170
710269993733,2cyclictest907414-21kworker/u8:3+events_unbound22:30:183
710269993632,3cyclictest809084-21kworker/u8:3+flush-259:020:45:233
710257993634,1cyclictest751522-21kworker/1:2+pm23:18:181
710257993630,4cyclictest871213-21apt-get21:45:121
710257993630,4cyclictest1011559-21apt-get00:00:121
710269993532,2cyclictest866228-21kworker/u8:2+flush-259:022:40:193
710269993531,3cyclictest767362-21kworker/u8:2+events_unbound20:30:243
710265993531,3cyclictest798849-21kworker/u8:0+flush-259:021:25:172
710256993530,3cyclictest761781-21gpgv19:59:590
710269993431,2cyclictest948611-21kworker/u8:3+events_unbound23:05:193
710265993431,2cyclictest756641-21kworker/u8:4+flush-259:020:25:262
710256993430,3cyclictest984975-21kworker/u8:1+events_unbound00:10:220
710265993329,3cyclictest829887-21kworker/u8:4+flush-259:021:10:252
710257993330,2cyclictest704811-21kworker/u8:3+events_unbound19:40:281
710257993329,3cyclictest990127-21kworker/u8:5+events_unbound23:45:281
710269993229,2cyclictest907414-21kworker/u8:3+flush-259:022:35:213
710269993229,2cyclictest704811-21kworker/u8:3+flush-259:019:15:263
710256993228,3cyclictest720512-21kworker/u8:1+flush-259:020:00:170
710269993127,3cyclictest840024-21kworker/u8:1+flush-259:021:15:213
710269993126,3cyclictest829896-21/usr/sbin/munin21:05:153
710265993127,3cyclictest881265-21gpgv21:55:002
710256993125,4cyclictest715606-21/usr/sbin/munin19:15:200
710256993124,5cyclictest897492-21diskstats22:10:160
710269993026,3cyclictest890973-21kworker/u8:1+flush-259:022:05:173
710257993025,3cyclictest1021959-21apt-get00:10:121
710257993023,5cyclictest704811-21kworker/u8:3+flush-259:019:15:171
710256993027,2cyclictest829887-21kworker/u8:4+flush-259:021:10:270
710265992926,2cyclictest984975-21kworker/u8:1+flush-259:000:30:212
710265992926,2cyclictest938322-21kworker/u8:0+flush-259:023:00:182
710265992926,2cyclictest938322-21kworker/u8:0+flush-259:023:00:172
710257992926,2cyclictest667381-21kworker/u8:2+events_unbound19:22:261
710256992926,2cyclictest928025-21kworker/u8:1+events_unbound22:50:140
710256992924,3cyclictest1010865-21latency_hist00:00:010
710269992824,3cyclictest725673-21latency_hist19:25:013
710269992724,2cyclictest1010892-21kworker/u8:0+flush-259:000:15:253
710265992724,2cyclictest984975-21kworker/u8:1+events_unbound23:55:182
710265992724,2cyclictest751686-21kworker/u8:0+flush-259:019:50:222
710269992623,2cyclictest948611-21kworker/u8:3+flush-259:023:20:223
710269992623,2cyclictest809084-21kworker/u8:3+flush-259:020:50:213
710265992623,2cyclictest907414-21kworker/u8:3+flush-259:022:30:212
710265992622,3cyclictest866228-21kworker/u8:2+flush-259:022:45:242
710257992622,3cyclictest704811-21kworker/u8:3+events_unbound19:35:181
710256992623,2cyclictest948611-21kworker/u8:3+flush-259:023:15:210
710256992623,2cyclictest907414-21kworker/u8:3+events_unbound22:35:190
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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