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2026-01-01 - 04:48

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 Thu Jan 01, 2026 00:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
11622889913280,1325cyclictest14353222sleep33
11622889911720,1168cyclictest1332232-21sleep3
1162288993040,301cyclictest1222236-21turbostat3
11822462240,1sleep30-21swapper/33
1162288992017,1cyclictest0-21swapper/33
15454872184,7sleep20-21swapper/22
116228899177,7cyclictest14175422sleep33
116228899166,7cyclictest1537749-21turbostat3
1162288991613,1cyclictest0-21swapper/33
1162288991613,1cyclictest0-21swapper/33
1162288991613,1cyclictest0-21swapper/33
1162288991613,1cyclictest0-21swapper/33
1162288991613,1cyclictest0-21swapper/33
1162288991613,1cyclictest0-21swapper/33
116228899161,11cyclictest1525183-21taskset3
14188012151,11sleep01420945-21cut0
116228899153,7cyclictest13062652sleep33
1162288991513,1cyclictest0-21swapper/33
1162288991513,1cyclictest0-21swapper/33
1162288991513,1cyclictest0-21swapper/33
1162288991513,1cyclictest0-21swapper/33
1162288991513,0cyclictest0-21swapper/33
1162288991513,0cyclictest0-21swapper/33
1162288991512,1cyclictest0-21swapper/33
1162288991512,1cyclictest0-21swapper/33
1162288991512,1cyclictest0-21swapper/33
1162288991512,1cyclictest0-21swapper/33
116228899151,11cyclictest1428686-21taskset3
116228899151,10cyclictest1248186-21chrt3
116228899144,7cyclictest1480343-21taskset3
116228899143,8cyclictest1390231-21taskset3
116228899141,9cyclictest15123432sleep33
1162288991413,0cyclictest0-21swapper/33
1162288991412,1cyclictest0-21swapper/33
1162288991412,1cyclictest0-21swapper/33
1162288991412,1cyclictest0-21swapper/33
1162288991412,1cyclictest0-21swapper/33
1162288991412,1cyclictest0-21swapper/33
1162288991412,0cyclictest0-21swapper/33
1162288991411,1cyclictest0-21swapper/33
1162288991411,1cyclictest0-21swapper/33
1162288991411,1cyclictest0-21swapper/33
116228899141,10cyclictest1525098-21taskset3
116228899141,10cyclictest1505650-21turbostat3
116228899141,10cyclictest1499201-21turbostat3
116228899141,10cyclictest1318869-21chrt3
116228899141,10cyclictest1305708-21chrt3
116228899141,10cyclictest1280381-21taskset3
116228899140,11cyclictest1162430-21taskset3
116228899131,9cyclictest1570396-21taskset3
116228899131,9cyclictest1402423-21taskset3
116228899131,9cyclictest1338345-21taskset3
116228899131,9cyclictest1235306-21chrt3
116228899131,9cyclictest1228902-21taskset3
116228899131,9cyclictest1189847-21taskset3
1162288991312,0cyclictest0-21swapper/33
1162288991311,1cyclictest0-21swapper/33
1162288991311,1cyclictest0-21swapper/33
1162288991311,1cyclictest0-21swapper/33
116228899131,10cyclictest1190410-21taskset3
1162288991311,0cyclictest0-21swapper/33
1162288991311,0cyclictest0-21swapper/33
1162288991310,1cyclictest0-21swapper/33
1162288991310,1cyclictest0-21swapper/33
1162288991310,1cyclictest0-21swapper/33
116228899130,10cyclictest1557313-21taskset3
116228899130,10cyclictest1434779-21taskset3
116228899130,10cyclictest1263284-21taskset3
11620172130,3sleep30-21swapper/33
301798120,3rtkit-daemon1505652-21munin-run1
15056272121,8sleep01505632-21cron0
1162288991210,0cyclictest0-21swapper/33
301798110,6rtkit-daemon1297761-21cut0
301798110,4rtkit-daemon1168824-21munin-node1
13260622111,7sleep20-21swapper/22
12275922110,4sleep11227740-21ntpq1
12214412110,2sleep20-21swapper/22
301798100,5rtkit-daemon448-21wpa_supplicant0
301798100,5rtkit-daemon1320613-21sed0
301798100,5rtkit-daemon1203042-21date0
301798100,3rtkit-daemon492-21gmain0
301798100,1rtkit-daemon0-21swapper/11
15606522100,7sleep21562768-21tr2
14465082100,7sleep01446944-21grep0
12289102101,4sleep21228939-21apt-get2
30179890,6rtkit-daemon1123354-21munin-node0
30179890,5rtkit-daemon636-21snmpd0
30179890,5rtkit-daemon1571585-21irqcore1
30179890,5rtkit-daemon1469621-21kthreadcore1
30179890,5rtkit-daemon1168824-21munin-node0
30179890,4rtkit-daemon1416090-21/usr/sbin/munin1
30179890,4rtkit-daemon1357036-21ntp_states2
30179890,4rtkit-daemon1191794-21cut0
30179890,4rtkit-daemon1189131-21memory0
1492652296,2sleep2376-21hwrng2
1377370291,4sleep11377403-21apt-get1
1285796290,6sleep21285860-21ntp_states2
1261461290,6sleep11262144-21sed1
1255850290,7sleep20-21swapper/22
1177571291,4sleep01177604-21apt-get0
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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