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2026-01-14 - 11:25
[ 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 792 highest latencies:
System rack5slot7s.osadl.org (updated Wed Jan 14, 2026 00:45:09)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
10033224262190,90sleep00-21swapper19:09:230
101479916316,25cyclictest21515-21ntp_states23:31:320
101479916117,114cyclictest16196-21apt-get23:00:160
101479915913,121cyclictest21940-21munin-run20:20:010
101479915913,121cyclictest10974-21head22:26:040
101479915910,122cyclictest12533-21ps22:35:590
101479915815,119cyclictest15286-21apt19:40:020
101479915814,120cyclictest4063-21uname21:46:150
101479915717,116cyclictest11042-21apt-get22:31:280
101479915715,100cyclictest10953-21munin-node19:15:080
101479915712,104cyclictest32451-21grep21:20:500
101479915644,92cyclictest25324-21/usr/sbin/munin23:55:240
101479915618,111cyclictest16989-21apt-get23:05:170
101479915612,120cyclictest5674-21irqstats21:55:390
101479915528,16cyclictest0-21swapper21:01:010
101479915519,28cyclictest23718-21apt-get20:30:300
101479915516,114cyclictest28329-21munin-run00:15:020
101479915513,24cyclictest3328-21awk21:40:550
101479915510,117cyclictest24330-21latency_hist23:50:040
101479915431,21cyclictest0-21swapper20:21:000
101479915416,115cyclictest22719-21sh23:40:010
101479915414,23cyclictest13968-21irqstats19:30:400
101479915414,118cyclictest15429-21apt-get19:40:270
101479915413,25cyclictest29895-21irqstats21:05:380
101479915412,25cyclictest24800-21grep23:50:530
101479915411,117cyclictest25376-21apt-get20:41:390
101479915311,27cyclictest13626-21grep19:26:010
101479915310,121cyclictest31309-21/usr/sbin/munin21:15:360
101479915225,108cyclictest28019-21grep20:55:030
101479915221,36cyclictest14689-21diskstats22:50:330
101479915218,107cyclictest12993-21apt-get22:40:190
101479915217,98cyclictest12088-21munin-run19:20:030
101479915217,111cyclictest18727-21munin-run20:00:020
101479915213,115cyclictest28280-21irqstats20:55:380
101479915212,49cyclictest17529-21ntpq19:50:480
101479915212,116cyclictest24782-21df_inode20:35:350
101479915122,20cyclictest0-21swapper22:05:010
101479915118,25cyclictest12208-21apt-get19:20:160
101479915116,26cyclictest30054-21apt-get00:25:160
101479915115,111cyclictest28597-21irqstats00:15:370
101479915114,26cyclictest19291-21munin-run23:20:000
101479915111,36cyclictest1275-21/usr/sbin/munin21:30:220
101479915111,26cyclictest29259-21apt-get00:20:110
10147991508,121cyclictest481-21/usr/sbin/munin21:25:210
101479915017,111cyclictest30957-21diskstats00:30:310
101479915015,25cyclictest27087-21cat00:05:440
101479915015,23cyclictest20316-21diskstats23:25:320
101479915013,98cyclictest8893-21irqstats22:15:390
101479915013,28cyclictest26522-21/usr/sbin/munin20:45:540
10147991499,26cyclictest8393-21awk22:10:570
10147991498,120cyclictest31904-21grep00:35:460
101479914914,23cyclictest17895-21diskstats23:10:330
101479914913,113cyclictest16442-21apt-get19:45:180
101479914912,22cyclictest13957-21irqstats22:45:380
101479914818,23cyclictest23099-21memory20:25:500
101479914814,23cyclictest289-21snmpd21:53:280
101479914811,113cyclictest26738-21latency_hist00:05:030
101479914729,94cyclictest9852-21ntpq22:20:480
101479914715,22cyclictest30687-21irqstats21:10:390
101479914712,26cyclictest15922-21ls22:56:020
101479914711,113cyclictest7379-21wc22:05:460
101479914628,18cyclictest0-21swapper23:20:260
101479914616,104cyclictest22843-21/usr/sbin/munin23:40:480
101479914614,109cyclictest20532-21df20:10:260
101479914611,25cyclictest19888-21missed_timers20:05:440
10147991459,115cyclictest19409-21sort20:01:010
101479914218,101cyclictest2772-21munin-run21:40:020
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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