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2026-01-28 - 15:06
[ 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 #f, 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 highest latencies:
System rackfslot4s.osadl.org (updated Wed Jan 28, 2026 00:44:35)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1376421440,2sleep013767-21grep22:00:050
1981821350,2sleep019819-21aten2.4_rfpower23:45:390
57321210,2chrt575-21cut00:05:360
2099321210,2chrt20989-21grep22:10:490
2855521200,3chrt28557-21/usr/sbin/munin19:50:390
1779121180,2chrt17772-21ntp_states23:42:020
2275421170,2chrt22756-21sed21:25:080
1223721160,2sleep012238-21runrttasks19:25:010
2443921150,4chrt24440-21runrttasks23:04:090
2304721150,3chrt23048-21sleep00:39:040
134021150,3chrt520-21/usr/sbin/munin21:41:020
1415921140,3chrt14160-21sleep20:20:150
894821130,3chrt8949-21runrttasks23:29:100
311721130,2chrt3118-21ntpq22:32:100
1910021130,2chrt19101-21/usr/sbin/munin19:35:360
2982121110,4chrt29822-21sleep23:11:310
282121100,2sleep02822-21seq19:10:100
3236221090,2chrt32363-21sleep22:27:180
631921080,2sleep06320-21chrt00:13:540
3233721080,2sleep032338-21runrttasks00:04:240
2154921080,1sleep021551-21grep20:31:070
1209921080,3chrt12100-21sh23:33:450
930921070,3chrt9310-21sleep21:04:380
3013521070,2chrt30136-21ssh22:24:380
1861821060,3chrt18621-21proc_pri20:26:230
310921050,2sleep03111-21/usr/sbin/munin23:20:330
2386321020,1sleep023899-21cut23:51:110
2909821010,2chrt29099-21chrt23:59:390
690421000,2sleep06905-21seq22:37:430
537721000,3chrt5378-21sleep20:57:230
324562930,2sleep032457-21runrttasks21:39:160
244832920,2chrt22661-21apt-get21:27:020
118312910,2sleep011832-21basename22:45:310
295152880,1sleep029516-21latency_hist20:45:030
240642840,2sleep024066-21cut22:15:330
204222830,2sleep020423-21chrt22:10:050
62742810,2sleep06275-21seq21:48:190
7412760,2sleep0746-21sed23:16:510
21162768,16sleep02120-21sleep19:08:350
274672690,2sleep027469-21timerwakeupswit23:08:090
172362690,2sleep017239-21tail00:30:350
129812680,2sleep012982-21aten2.4_rfpower23:35:320
12762660,1sleep01277-21seq20:50:490
86372640,2sleep08638-21ntp_offset21:51:420
27082620,1sleep02711-21sort20:00:510
144602620,2sleep014461-21chrt21:12:130
105952620,2sleep010596-21runrttasks00:20:340
271442580,2sleep027146-21interrupts21:31:020
161272580,1sleep016173-21grep19:30:410
93932573,7sleep09403-21python320:11:260
88452560,2sleep08846-21seq22:40:490
211312560,2sleep021132-21seq22:59:150
313632550,1sleep031364-21chrt19:55:290
154212540,2sleep015422-21chrt22:01:560
151882543,6sleep015174-21ssh00:26:520
248572523,7sleep024823-21apt-get19:45:190
100092523,9sleep0412-21snmpd00:19:470
124992500,2sleep012500-21aten2.4_rfpower19:25:240
172652492,6sleep017260-21ssh22:52:570
113742493,7sleep011382-21sh20:15:340
69942464,35sleep06987-21ntpq19:15:550
219182460,2sleep021917-21seq19:40:250
297062454,34sleep029660-21apt-get20:45:200
48202434,32sleep04804-21apt-get20:05:160
2703904312,22cyclictest0-21swapper21:18:340
2703904114,21cyclictest0-21swapper21:08:140
270390394,18cyclictest24440-21ntpq20:35:490
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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