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2026-02-01 - 06:31
[ 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 #b, 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.

Note that this system runs a non-RT kernel.
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, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 50 highest latencies:
System rackbslot7s.osadl.org (updated Sun Feb 01, 2026 00:43:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
101812346913,3443sleep023598-21kworker/0:022:03:030
204172180513,1739sleep013781-1kworker/0:2H00:22:330
1401210287,1011sleep013781-1kworker/0:2H19:50:260
1132829155,897sleep25385-1kworker/2:1H23:50:132
9530285713,828sleep09531-21/usr/sbin/munin23:45:060
31984262924,589sleep331993-21/usr/sbin/munin23:10:213
1625257617,540sleep327672-1kworker/3:0H21:36:333
1625257617,540sleep327672-1kworker/3:0H21:36:333
25304257512,549sleep125343-21ntpq22:51:131
25304257512,549sleep125343-21ntpq22:51:131
20512257221,534sleep120581-21/usr/sbin/munin22:35:181
20512257221,534sleep120581-21/usr/sbin/munin22:35:181
18557250328,457sleep118589-21/usr/sbin/munin19:05:251
25011246115,429sleep025020-21/usr/sbin/munin19:25:060
2589824006,386sleep327672-1kworker/3:0H22:52:043
2589824006,386sleep327672-1kworker/3:0H22:52:043
17518234319,303sleep217665-21unixbench_multi22:25:222
200242336166,120sleep220056-21tune2fs22:35:072
200242336166,120sleep220056-21tune2fs22:35:072
1134222859,217sleep211488-21grep22:05:192
11157227925,127sleep211180-21munin-run20:24:492
28590225342,190sleep227956-21/usr/sbin/munin23:00:192
31176224153,144sleep231243-21fschecks_time23:10:082
25022223015,199sleep025109-21fschecks_time22:51:080
25022223015,199sleep025109-21fschecks_time22:51:080
2502622289,202sleep225077-21fschecks_count19:25:082
4620221435,138sleep24707-21latency_hist23:29:502
13134220617,89sleep212837-21/usr/sbin/munin23:55:132
1970022059,175sleep219675-21latency_hist22:34:502
1970022059,175sleep219675-21latency_hist22:34:502
2341220016,161sleep3195-21jbd2/mmcblk2p2-23:20:183
6529219913,24sleep20-21swapper/220:09:502
3265921980,19sleep219647-21cyclictest19:49:502
29710218811,135sleep229757-21idleruntime23:05:112
815218544,27sleep20-21swapper/221:34:502
24392218519,147sleep324504-21cat22:49:493
13232218428,138sleep013271-21grep20:30:040
2840321828,161sleep228435-21nfs_client19:35:142
2840321828,161sleep228435-21nfs_client19:35:142
2014721827,18sleep00-21swapper/022:35:090
2014721827,18sleep00-21swapper/022:35:090
34092180104,18sleep20-21swapper/221:40:192
1443121805,163sleep25385-1kworker/2:1H23:59:582
29230217446,20sleep20-21swapper/221:20:122
16116216934,92sleep216216-21latency_hist20:39:512
16116216934,92sleep216216-21latency_hist20:39:512
26163216310,96sleep226256-21latency_hist22:54:492
26163216310,96sleep226256-21latency_hist22:54:492
6948216189,17sleep20-21swapper/220:10:112
26487214729,98sleep20-21swapper/219:30:052
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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