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2026-01-28 - 05:32
[ 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 #5, 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.

Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 50.5 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 376 highest latencies:
System rack5slot7s.osadl.org (updated Wed Jan 28, 2026 00:45:09)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
26886224522192,89sleep00-21swapper19:09:140
270199917027,110cyclictest743-21apt-get19:45:340
270199916417,123cyclictest2286-21diskstats23:10:530
270199916017,119cyclictest6778-21wc23:36:000
270199916017,113cyclictest16284-21apt-get00:35:180
270199915826,30cyclictest6127-21apt-get20:15:210
270199915817,26cyclictest15485-21apt-get00:30:220
270199915815,120cyclictest8895-21wc23:50:460
270199915811,40cyclictest5790-21snmpd22:11:230
270199915719,23cyclictest13898-21apt-get00:20:160
270199915616,116cyclictest3377-21apt-get20:00:280
270199915614,98cyclictest4234-21apt-get20:06:340
270199915536,96cyclictest20228-21mailstats21:40:560
270199915518,30cyclictest29750-21diskstats22:40:350
270199915515,23cyclictest7732-21apt23:45:010
270199915512,25cyclictest7180-21grep20:20:420
27019991549,121cyclictest21992-21grep21:51:030
270199915415,25cyclictest11964-21apt-get00:10:450
270199915415,116cyclictest17137-21sort21:20:590
270199915413,41cyclictest27124-21munin-run22:25:000
270199915319,28cyclictest9339-21apt-get20:35:160
270199915314,113cyclictest24340-21/usr/sbin/munin22:06:000
270199915313,118cyclictest27823-21munin-node19:15:090
270199915313,118cyclictest10126-21munin-run00:00:030
270199915313,116cyclictest1795-21df19:50:320
270199915313,115cyclictest19523-21timerwakeupswit21:36:020
270199915312,117cyclictest10160-21apt-get20:40:120
27019991529,101cyclictest17649-21ntpq21:25:480
270199915214,43cyclictest31564-21df19:35:240
270199915213,114cyclictest21330-21sort21:50:040
270199915212,28cyclictest5686-21missed_timers23:30:450
270199915211,116cyclictest29288-21grep19:20:410
270199915210,116cyclictest12171-21sendmail_mailqu20:50:580
270199915121,101cyclictest18161-21apt-get21:30:200
270199915118,107cyclictest31883-21users22:51:060
270199915117,107cyclictest27398-21irqstats22:25:400
270199915115,97cyclictest28903-21users19:16:220
270199915114,115cyclictest10937-21apt-get00:05:350
270199915113,115cyclictest5790-21snmpd22:59:590
270199915113,114cyclictest13576-21switchtime00:16:220
270199915111,117cyclictest32753-21mailstats19:40:580
270199915018,29cyclictest30603-21irqstats22:45:380
270199915017,25cyclictest4626-21apt-get23:25:150
270199915016,24cyclictest12819-21/usr/sbin/munin20:55:470
270199915016,24cyclictest11065-21diskstats20:45:330
270199915011,25cyclictest23524-21wc22:01:040
270199914929,98cyclictest30522-21sed19:26:030
270199914927,19cyclictest29641-1kworker/u3:323:15:200
270199914917,28cyclictest3191-21munin-run20:00:030
270199914915,109cyclictest15743-21apt-get21:15:220
270199914911,28cyclictest13368-21sshd21:00:220
270199914911,25cyclictest4151-21open_files23:20:500
270199914911,23cyclictest1802-21sed23:06:020
27019991489,110cyclictest7799-21cpu20:25:220
270199914818,23cyclictest14690-21apt-get00:25:150
270199914813,111cyclictest10248-21apt-get00:00:180
270199914717,26cyclictest3937-21kworker/u2:520:10:200
270199914715,108cyclictest28135-21diskstats22:30:490
270199914712,20cyclictest14951-21apt-get21:10:210
270199914711,24cyclictest8438-21unixbench_singl23:46:060
270199914615,108cyclictest29056-21memory22:35:470
270199914615,104cyclictest22157-21apt-get21:55:180
270199914611,112cyclictest14783-21grep21:06:000
270199914519,27cyclictest30778-21df_inode19:30:280
270199914511,112cyclictest954-21cat23:01:010
270199914377,46cyclictest25597-21apt-get22:15:180
270199914311,46cyclictest8651-21df_inode20:30:270
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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