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2026-01-07 - 22:31

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #e, slot #8

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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  Congatec
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.
Unexpectedly long latencies may be caused by SMIs
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 100 highest latencies:
System rackeslot8s.osadl.org (updated Wed Jan 07, 2026 12:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
30592469911950,1191cyclictest33522712sleep33
30592469911680,1165cyclictest31390662sleep33
30592469911331,1126cyclictest3280568-21sleep3
30592469911011,1095cyclictest3461729-21sleep3
344805221110,2sleep03448051-21sendmail_mailqu0
3059246992320,1cyclictest0-21swapper/33
3059246992118,1cyclictest0-21swapper/33
3059246992017,1cyclictest0-21swapper/33
305924699187,7cyclictest3132679-21turbostat3
3059246991815,1cyclictest0-21swapper/33
3059246991714,1cyclictest0-21swapper/33
3059246991614,1cyclictest0-21swapper/33
3059246991613,1cyclictest0-21swapper/33
305924699161,11cyclictest3455270-21turbostat3
305924699161,11cyclictest3326246-21taskset3
305924699155,7cyclictest3423405-21taskset3
3059246991512,1cyclictest0-21swapper/33
3059246991512,1cyclictest0-21swapper/33
3059246991512,1cyclictest0-21swapper/33
305924699151,10cyclictest3384927-21taskset3
305924699151,10cyclictest3205978-21taskset3
305924699151,10cyclictest3184300-21taskset3
305924699145,6cyclictest33591392sleep33
3059246991412,1cyclictest0-21swapper/33
3059246991412,1cyclictest0-21swapper/33
3059246991412,1cyclictest0-21swapper/33
3059246991412,1cyclictest0-21swapper/33
3059246991412,0cyclictest0-21swapper/33
3059246991412,0cyclictest0-21swapper/33
3059246991411,1cyclictest0-21swapper/33
3059246991411,1cyclictest0-21swapper/33
3059246991411,1cyclictest0-21swapper/33
3059246991411,1cyclictest0-21swapper/33
305924699141,10cyclictest3484567-21taskset3
305924699141,10cyclictest3344316-21taskset3
305924699141,10cyclictest3065300-21chrt3
305924699134,7cyclictest3397337-21taskset3
305924699133,8cyclictest3320026-21taskset3
305924699133,8cyclictest3320026-21taskset3
305924699133,7cyclictest3216510-21taskset3
305924699131,9cyclictest3480652-21taskset3
305924699131,9cyclictest3444553-21taskset3
305924699131,9cyclictest3306061-21chrt3
305924699131,9cyclictest3145745-21taskset3
305924699131,9cyclictest3145745-21taskset3
305924699131,9cyclictest3139325-21taskset3
305924699131,9cyclictest3093913-21taskset3
3059246991312,0cyclictest0-21swapper/33
3059246991311,1cyclictest0-21swapper/33
3059246991311,1cyclictest0-21swapper/33
3059246991311,1cyclictest0-21swapper/33
3059246991310,1cyclictest0-21swapper/33
3059246991310,1cyclictest0-21swapper/33
3059246991310,1cyclictest0-21swapper/33
3059246991310,1cyclictest0-21swapper/33
305924699130,10cyclictest3261317-21taskset3
33641842121,4sleep134-21ksoftirqd/11
32163292121,6sleep13216351-21apt-get1
32134792120,1sleep30-21swapper/33
305924699129,1cyclictest0-21swapper/33
305924699124,6cyclictest3377246-21taskset3
305924699124,6cyclictest3074191-21taskset3
305924699121,9cyclictest3429820-21taskset3
305924699121,9cyclictest3365329-21taskset3
305924699121,8cyclictest3403529-21taskset3
3059246991210,1cyclictest0-21swapper/33
3059246991210,1cyclictest0-21swapper/33
3059246991210,1cyclictest0-21swapper/33
3059246991210,0cyclictest0-21swapper/33
305924699120,9cyclictest3177242-21taskset3
31393292111,6sleep23139362-21apt-get2
305924699111,8cyclictest3306770-21taskset3
305924699110,9cyclictest3255690-21taskset3
30772582101,6sleep03079391-21kthreadcore0
30531792101,5sleep23053374-21hddtemp_smartct2
301798100,5rtkit-daemon3379640-21irqstats1
301798100,5rtkit-daemon3222945-21df_inode1
301798100,4rtkit-daemon3391360-21apt-get1
301798100,4rtkit-daemon3065766-21munin-node1
301798100,3rtkit-daemon492-21gmain1
301798100,3rtkit-daemon430-21avahi-daemon1
301798100,3rtkit-daemon3065766-21munin-node1
301798100,1rtkit-daemon0-21swapper/11
3482708291,6sleep23484566-21grep2
3417379290,6sleep13417770-21cut1
3365374291,4sleep13365520-21df1
3262017290,6sleep03262981-21grep0
3242047291,4sleep03242079-21apt-get0
3105953291,4sleep23106078-21python32
30179890,5rtkit-daemon638-21ntpd1
30179890,5rtkit-daemon636-21snmpd1
30179890,5rtkit-daemon636-21snmpd1
30179890,5rtkit-daemon636-21snmpd1
30179890,5rtkit-daemon3442683-21/usr/sbin/munin1
30179890,5rtkit-daemon3205-21sendmail-mta1
30179890,5rtkit-daemon317-21systemd-udevd1
30179890,5rtkit-daemon317-21systemd-udevd1
30179890,4rtkit-daemon3449263-21df_inode1
30179890,4rtkit-daemon3352608-21grep1
30179890,4rtkit-daemon3273229-21switchtime1
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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