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2026-01-01 - 15:35

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 376 highest latencies:
System rackeslot8s.osadl.org (updated Thu Jan 01, 2026 12:43:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
6598659912580,1254cyclictest10826362sleep33
6598659912490,1238cyclictest772079-21turbostat3
659865992400,237cyclictest939898-21turbostat3
7097752400,1sleep0709774-21grep0
659865992421,1cyclictest0-21swapper/33
659865992320,1cyclictest0-21swapper/33
659865992118,1cyclictest0-21swapper/33
659865991916,1cyclictest0-21swapper/33
659865991814,2cyclictest998468-21turbostat3
659865991715,1cyclictest0-21swapper/33
659865991715,1cyclictest0-21swapper/33
65986599166,7cyclictest914090-21turbostat3
65986599166,7cyclictest1050170-21turbostat3
659865991613,1cyclictest0-21swapper/33
659865991613,1cyclictest0-21swapper/33
659865991613,1cyclictest0-21swapper/33
65986599161,12cyclictest933501-21taskset3
65986599161,12cyclictest933501-21taskset3
65986599161,11cyclictest933704-21taskset3
65986599161,11cyclictest933704-21taskset3
9131822151,5sleep1913235-21ntp_states1
65986599157,5cyclictest901197-21turbostat3
659865991513,1cyclictest0-21swapper/33
659865991512,1cyclictest0-21swapper/33
659865991512,1cyclictest0-21swapper/33
65986599151,11cyclictest985553-21turbostat3
65986599151,11cyclictest901598-21taskset3
65986599151,11cyclictest761315-21taskset3
65986599151,11cyclictest716526-21taskset3
65986599151,10cyclictest1050659-21taskset3
8180992141,4sleep0819085-21irqstats0
65986599146,6cyclictest823855-21turbostat3
65986599145,6cyclictest8439182sleep33
65986599141,9cyclictest8305782sleep33
65986599141,9cyclictest8045412sleep33
65986599141,9cyclictest10831592sleep33
659865991413,0cyclictest0-21swapper/33
659865991412,1cyclictest0-21swapper/33
659865991412,1cyclictest0-21swapper/33
659865991412,0cyclictest0-21swapper/33
659865991412,0cyclictest0-21swapper/33
659865991411,1cyclictest0-21swapper/33
65986599141,10cyclictest992017-21turbostat3
65986599141,10cyclictest965055-21taskset3
65986599141,10cyclictest949533-21chrt3
65986599141,10cyclictest894150-21taskset3
65986599141,10cyclictest868127-21chrt3
65986599141,10cyclictest817026-21taskset3
65986599141,10cyclictest707886-21taskset3
65986599140,11cyclictest727218-21chrt3
65986599131,9cyclictest823855-21turbostat3
65986599131,9cyclictest1011151-21taskset3
65986599131,8cyclictest1018098-21taskset3
659865991312,0cyclictest0-21swapper/33
659865991312,0cyclictest0-21swapper/33
659865991312,0cyclictest0-21swapper/33
659865991311,1cyclictest0-21swapper/33
659865991311,1cyclictest0-21swapper/33
65986599131,10cyclictest953296-21taskset3
65986599131,10cyclictest746080-21taskset3
65986599130,10cyclictest1063769-21taskset3
9274312121,8sleep0927627-21hddtemp_smartct0
9274312121,8sleep0927627-21hddtemp_smartct0
7325082121,7sleep1732566-21ntp_states1
65986599129,1cyclictest0-21swapper/33
65986599129,1cyclictest0-21swapper/33
65986599124,6cyclictest1076101-21taskset3
65986599122,7cyclictest855241-21taskset3
65986599121,9cyclictest972364-21taskset3
65986599121,9cyclictest752469-21taskset3
65986599121,9cyclictest752469-21taskset3
65986599121,9cyclictest1036934-21taskset3
65986599120,9cyclictest694230-21taskset3
65986599120,9cyclictest1057111-21chrt3
65986599120,10cyclictest720758-21taskset3
6536782120,4sleep0653876-21smartctl0
301798120,7rtkit-daemon837067-21apt-get0
301798120,7rtkit-daemon797156-21/usr/sbin/munin0
8047272111,7sleep1804793-21/usr/sbin/munin1
7647182111,7sleep2764795-21ntp_states2
7340622111,7sleep2734237-21sed2
301798110,7rtkit-daemon927229-21/usr/sbin/munin1
301798110,7rtkit-daemon927229-21/usr/sbin/munin1
301798110,7rtkit-daemon849877-21/usr/sbin/munin1
301798110,7rtkit-daemon666651-21munin-node0
301798110,3rtkit-daemon492-21gmain0
6948202101,5sleep1694853-21apt-get1
6544542102,5sleep2655339-21cut2
301798100,6rtkit-daemon875665-21/usr/sbin/munin1
301798100,6rtkit-daemon1050152-21cron0
301798100,5rtkit-daemon960246-21diskstats0
301798100,5rtkit-daemon830766-21df_inode0
301798100,5rtkit-daemon688420-21apt-get0
301798100,5rtkit-daemon674649-21/usr/sbin/munin0
301798100,5rtkit-daemon1016774-21memory0
301798100,5rtkit-daemon1010316-21memory0
301798100,3rtkit-daemon666651-21munin-node0
301798100,3rtkit-daemon3200908-21packagekitd0
992449290,7sleep1992645-21hddtemp_smartct1
936554291,5sleep1938714-21kthreadcore1
936554291,5sleep1938714-21kthreadcore1
901468291,4sleep2901594-21cpuspeed_turbos2
870664292,4sleep0871774-21cut0
868178291,4sleep0868284-21python30
862769291,4sleep1862802-21apt-get1
844786291,5sleep0845891-21cut0
765930291,5sleep1765979-21grep1
759460291,4sleep1759493-21apt-get1
753036290,5sleep1753185-21df_inode1
727230291,4sleep0727263-21apt-get0
30179890,5rtkit-daemon799534-21irqrtprio0
30179890,5rtkit-daemon636-21snmpd0
30179890,5rtkit-daemon3205-21sendmail-mta0
30179890,4rtkit-daemon735996-21cat0
30179890,4rtkit-daemon448-21wpa_supplicant0
30179890,3rtkit-daemon636-21snmpd0
1083411290,6sleep21083584-21basename2
1044004291,5sleep01044150-21df0
1011664291,5sleep21011819-21diskstats2
998708281,3sleep1998740-21apt-get1
992646280,5sleep2993106-21cut2
984711282,4sleep2979382-21/usr/sbin/munin2
979129281,4sleep0979145-21munin-run0
972670280,4sleep1972714-21munin-run1
946590281,3sleep1946622-21apt-get1
861600281,4sleep0861671-21ntp_states0
835942281,4sleep1830577-21/usr/sbin/munin1
773767282,3sleep1775002-21cut1
751803281,4sleep0751874-21ntp_states0
751803281,4sleep0751874-21ntp_states0
30179880,5rtkit-daemon667-21lldpd0
30179880,5rtkit-daemon667-21lldpd0
30179880,5rtkit-daemon666651-21munin-node1
30179880,5rtkit-daemon3205-21sendmail-mta0
30179880,4rtkit-daemon667-21lldpd1
30179880,4rtkit-daemon666651-21munin-node1
30179880,4rtkit-daemon666651-21munin-node0
30179880,4rtkit-daemon666651-21munin-node0
30179880,4rtkit-daemon666651-21munin-node0
30179880,4rtkit-daemon636-21snmpd1
30179880,4rtkit-daemon636-21snmpd0
30179880,4rtkit-daemon636-21snmpd0
30179880,4rtkit-daemon636-21snmpd0
30179880,4rtkit-daemon492-21gmain0
30179880,4rtkit-daemon492-21gmain0
30179880,4rtkit-daemon492-21gmain0
30179880,4rtkit-daemon448-21wpa_supplicant0
30179880,4rtkit-daemon317-21systemd-udevd0
30179880,4rtkit-daemon2904-21cron0
30179880,3rtkit-daemon714344-21apt-get0
30179880,1rtkit-daemon0-21swapper/11
30179880,1rtkit-daemon0-21swapper/11
1062410280,4sleep21062466-21ntp_states2
1031087281,4sleep21031233-21df2
1023418281,4sleep01023474-21ntp_states0
1005575280,5sleep11006205-21sed1
988524270,2sleep1990673-21kthreadcore1
894043271,3sleep2894149-21sed2
890017270,4sleep0891591-21grep0
850271271,3sleep0850354-21ps0
811225271,2sleep10-21swapper/11
802177270,3sleep2803228-21memory2
740201270,4sleep0740297-21entropy0
674169270,4sleep1674244-21ps1
655340271,3sleep30-21swapper/33
653473270,3sleep10-21swapper/11
30179870,4rtkit-daemon636-21snmpd0
30179870,4rtkit-daemon492-21gmain1
30179870,4rtkit-daemon492-21gmain0
30179870,3rtkit-daemon666651-21munin-node1
30179870,3rtkit-daemon638-21ntpd0
30179870,3rtkit-daemon636-21snmpd0
30179870,3rtkit-daemon636-21snmpd0
30179870,3rtkit-daemon636-21snmpd0
30179870,3rtkit-daemon636-21snmpd0
30179870,3rtkit-daemon492-21gmain1
30179870,3rtkit-daemon3205-21sendmail-mta0
30179870,3rtkit-daemon3205-21sendmail-mta0
30179870,1rtkit-daemon0-21swapper/00
1085304271,3sleep11087366-21cut1
1057125270,1sleep10-21swapper/11
1050143270,1sleep20-21swapper/22
1038478271,4sleep21039251-21cut2
1006206270,4sleep21007299-21cut2
972962260,3sleep1973105-21df1
933669260,2sleep20-21swapper/22
933669260,2sleep20-21swapper/22
933390260,4sleep20-21swapper/22
933390260,4sleep20-21swapper/22
920772260,3sleep0920805-21apt-get0
908066260,4sleep2908178-21perl2
882580261,2sleep20-21swapper/22
882315260,3sleep0882405-21fschecks_time0
863453261,2sleep20-21swapper/22
849474261,2sleep2636-21snmpd2
837435260,3sleep2837847-21sed2
829369261,3sleep20-21swapper/22
817375260,1sleep20-21swapper/22
800105262,2sleep1801250-21kthreadcore1
785206260,3sleep1785239-21apt-get1
778306263,2sleep2376-21hwrng2
755424260,3sleep2757518-21grep2
752365260,1sleep20-21swapper/22
752365260,1sleep20-21swapper/22
740498260,3sleep2740617-21irqcore2
696013260,3sleep2697188-21kthreadcore2
672625260,4sleep2673978-21/usr/sbin/munin2
1082514260,4sleep21082515-21sshd2
1070192260,3sleep21070351-21grep2
1063588261,2sleep10-21swapper/11
1051577260,3sleep11052702-21cut1
1011658261,1sleep10-21swapper/11
991722250,1sleep20-21swapper/22
974721251,2sleep20-21swapper/22
967491251,2sleep20-21swapper/22
962910250,2sleep20-21swapper/22
946625250,2sleep20-21swapper/22
920398250,1sleep20-21swapper/22
914331250,2sleep00-21swapper/00
907878250,2sleep00-21swapper/00
907448250,1sleep00-21swapper/00
897269250,3sleep0899345-21kthreadcore0
894997250,2sleep20-21swapper/22
881779250,1sleep00-21swapper/00
881663250,1sleep20-21swapper/22
875405250,1sleep20-21swapper/22
842941250,1sleep10-21swapper/11
830265250,1sleep10-21swapper/11
819086250,2sleep10-21swapper/11
797690250,1sleep10-21swapper/11
786344250,3sleep2787479-21kthreadcore2
771992250,1sleep20-21swapper/22
728930250,3sleep2730957-21kthreadcore2
723925251,2sleep10-21swapper/11
714311251,1sleep10-21swapper/11
707413250,3sleep10-21swapper/11
681968250,1sleep20-21swapper/22
681118250,1sleep20-21swapper/22
680633250,3sleep1680748-21grep1
666376250,1sleep10-21swapper/11
666237250,1sleep20-21swapper/22
1081796250,3sleep11081837-21ps1
1069438250,1sleep20-21swapper/22
1049251251,2sleep10-21swapper/11
1036222250,3sleep11036357-21/usr/sbin/munin1
1030765250,1sleep20-21swapper/22
1025717251,2sleep10-21swapper/11
1018257251,2sleep10-21swapper/11
1018062250,2sleep20-21swapper/22
1000160250,2sleep20-21swapper/22
982331240,2sleep10-21swapper/11
946171241,2sleep1659854-21cyclictest1
940128240,1sleep20-21swapper/22
922828240,2sleep20-21swapper/22
855987240,3sleep20-21swapper/22
812668240,2sleep20-21swapper/22
779751240,2sleep20-21swapper/22
752427240,1sleep10-21swapper/11
752427240,1sleep10-21swapper/11
714045240,3sleep20-21swapper/22
694377240,3sleep10-21swapper/11
684430240,2sleep10-21swapper/11
1037534240,1sleep10-21swapper/11
961509230,1sleep10-21swapper/11
953499230,1sleep10-21swapper/11
856535230,1sleep20-21swapper/22
830571230,1sleep20-21swapper/22
809884230,1sleep20-21swapper/22
791703230,1sleep20-21swapper/22
778770230,1sleep10-21swapper/11
740090230,2sleep10-21swapper/11
737096230,1sleep10-21swapper/11
725856230,1sleep20-21swapper/22
715418230,1sleep20-21swapper/22
711819230,1sleep10-21swapper/11
701699230,1sleep20-21swapper/22
688384230,1sleep20-21swapper/22
1070072230,1sleep10-21swapper/11
1050395230,1sleep20-21swapper/22
953295220,1sleep20-21swapper/22
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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