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2026-01-23 - 01:50
[ 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 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 792 highest latencies:
System rackfslot4s.osadl.org (updated Thu Jan 22, 2026 00:44:36)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1269721280,2chrt12701-21aten2.4_rfpower20:45:230
2151221270,2chrt21514-21runrttasks19:15:460
1992621200,2sleep019938-21/usr/sbin/munin21:45:560
1499821190,2sleep015025-21fschecks_count23:15:510
2968121180,2chrt29682-21aten2.4-expect20:21:130
1746621180,2chrt17460-21ntpq20:00:560
1397321180,3chrt13972-21ld21:36:350
61021150,2chrt608-21sshd22:54:010
2698121150,3chrt26982-21rm23:33:280
2273021150,2chrt22731-21rm23:26:530
1916821140,4chrt19166-21sshd19:11:280
1054921140,3chrt10546-21ntpq21:31:260
1202221130,2chrt11993-21apt-get00:00:150
724421110,2sleep07245-21runrttasks23:03:580
2705521110,2chrt27054-21/usr/sbin/munin21:56:080
2084521110,2chrt20846-21sleep22:35:470
320021100,2sleep03201-21aten2.4_rfpower00:35:350
1951821100,2sleep019519-21chrt20:05:180
337921080,2chrt3378-21seq19:39:380
2626521080,2chrt26264-21seq19:23:520
2184521030,2chrt21847-21latency_hist00:15:070
2262121000,2sleep022622-21chrt20:10:180
5022980,2sleep0504-21awk22:05:340
267382980,2chrt26740-21idleruntime20:16:300
239572950,2sleep023959-21tail22:40:320
200732920,2sleep020074-21chrt22:34:450
41642890,2sleep04165-21seq22:59:350
13832890,2sleep01384-21seq00:32:220
78622840,2sleep07863-21runrttasks23:05:100
246002800,2sleep024601-21sh21:52:260
295912790,2sleep029592-21collect221:11:270
61572780,1sleep06158-21basename20:35:220
231292770,3sleep023130-21if_err_can000:16:430
28192760,2sleep02822-21chrt20:30:000
88672750,2sleep08868-21aten2.4_rfpower23:55:330
294152750,2sleep029416-21seq23:36:580
325442740,1sleep032545-21irqrtprio21:16:070
129272740,1sleep012930-21wc23:12:130
45932730,1sleep04594-21/usr/sbin/munin19:41:040
306092730,2sleep030607-21if_eth019:30:430
44052710,2sleep04406-21seq23:48:130
105122680,2sleep010513-21chrt19:50:320
272082630,1sleep027209-21runrttasks19:25:300
185922620,1sleep018596-21seq20:55:030
195112590,2sleep019515-21chrt23:22:070
71712573,9sleep07069-21apt-get22:15:270
65782575,9sleep06583-21hddtemp_smartct21:25:580
33002572,46sleep03253-21ssh21:21:020
152082563,9sleep015201-21ntpq22:26:450
294282550,2sleep029429-21seq22:48:150
192012553,8sleep018567-21apt-get20:55:530
84252543,8sleep07039-21/usr/sbin/munin19:46:230
312842540,2sleep031282-21swap22:02:240
35332530,2sleep03534-21seq20:30:390
273882533,42sleep027412-21ps00:22:450
268072533,9sleep026830-21users21:06:300
16012533,42sleep01604-21seq23:44:280
1551325012,18sleep015516-21ntpq19:05:500
179062490,2sleep017907-21seq21:42:270
59492480,3chrt5947-21mailstats22:13:050
17402904818,22cyclictest0-21swapper22:20:070
288142473,35sleep028820-21ssh00:25:170
17402904618,21cyclictest0-21swapper23:54:340
17402904616,22cyclictest0-21swapper00:09:190
1740290445,19cyclictest10075-21df_inode20:41:190
132472430,1sleep013248-21seq19:55:110
1740290415,19cyclictest22609-21hddtemp_smartct21:00:380
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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