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2026-03-09 - 11:31
[ 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 #4, slot #1

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, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 50 highest latencies:
System rack4slot1s.osadl.org (updated Mon Mar 09, 2026 00:44:11)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1037921130,3chrt0-21swapper/120:51:371
1037921130,3chrt0-21swapper/120:51:371
66782970,2sleep16682-21missed_timers20:41:401
250872890,2sleep20-21swapper/221:31:342
250872890,2sleep20-21swapper/221:31:342
192612890,4sleep10-21swapper/122:41:391
192612890,4sleep10-21swapper/122:41:391
7512620,2sleep1937-21timerandwakeup21:51:441
7512620,2sleep1937-21timerandwakeup21:51:441
134182540,2sleep113422-21timerandwakeup23:51:461
218832530,2chrt0-21swapper/100:16:351
218832530,2chrt0-21swapper/100:16:351
262072470,4chrt0-21swapper/200:26:412
262072470,4chrt0-21swapper/200:26:412
284382460,2sleep30-21swapper/300:31:443
4920994432,6cyclictest160422sleep000:01:270
4920994432,6cyclictest160422sleep000:01:270
161392400,2sleep116140-21/usr/sbin/munin19:41:341
278652390,3chrt0-21swapper/321:36:453
278652390,3chrt0-21swapper/321:36:453
278652390,3chrt0-21swapper/321:36:453
4920993828,5cyclictest0-21swapper/000:01:450
4921993732,3cyclictest4914-21cyclictest00:01:481
241812370,2sleep024246-21/usr/sbin/munin22:56:350
241812370,2sleep024246-21/usr/sbin/munin22:56:350
125742370,2sleep112692-21grep20:56:441
125742370,2sleep112692-21grep20:56:441
122112370,2sleep012055-21latency_hist19:31:290
122112370,2sleep012055-21latency_hist19:31:290
67842360,3sleep30-21swapper/323:36:333
67842360,3sleep30-21swapper/323:36:333
4920993625,5cyclictest11454-21latency_hist20:56:220
4920993625,5cyclictest11454-21latency_hist20:56:220
4921993528,5cyclictest31241-21fschecks_time20:21:351
4921993528,5cyclictest31241-21fschecks_time20:21:351
4921993528,5cyclictest24946-21cut21:31:331
4921993528,5cyclictest24946-21cut21:31:331
206132350,2sleep120716-21switchtime19:51:441
206132350,2sleep120716-21switchtime19:51:441
4921993425,7cyclictest28323-21cut21:41:221
4921993425,7cyclictest28323-21cut21:41:221
4921993425,7cyclictest28323-21cut21:41:221
4921993325,6cyclictest19872-21netstat21:16:411
4921993325,6cyclictest19872-21netstat21:16:411
4921993325,6cyclictest19872-21netstat21:16:411
4921993324,6cyclictest22852-21latency_hist21:26:301
4921993324,6cyclictest22852-21latency_hist21:26:301
4920993326,5cyclictest5836-21cron20:41:230
4920993326,5cyclictest5836-21cron20:41:230
199372330,3chrt0-21swapper/322:42:383
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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