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2025-06-16 - 20:13

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #4, slot #6

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 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes
Compare latency of primary with shadow system
Characteristics of all highest latencies:
System rack4slot6s.osadl.org (updated Mon Jun 16, 2025 12:44:02)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
175822540,3sleep01757-21/usr/sbin/munin11:50:330
1366722360,2sleep013665-21timerwakeupswit10:30:360
1758121430,4chrt17579-21users10:45:320
445021340,4chrt4448-21grep09:55:270
56421310,5chrt566-21awk07:35:190
965621270,3sleep09655-21ntp_states08:10:250
1301121260,4chrt13012-21cat10:30:010
1350721170,4chrt13509-21ntp_kernel_pll_08:25:210
796321090,3sleep07898-21/usr/sbin/munin10:10:170
319922990,2sleep031994-21sed07:30:280
91152926,14sleep09123-21df12:20:120
58272928,9sleep05891-21mailstats07:55:250
206922926,12sleep020738-21sendmail-msp11:00:010
156672817,61sleep015683-21munin-run08:35:000
104992805,60sleep010524-21cpu10:20:150
247132740,3sleep024728-21cron09:10:000
2511227017,30sleep025168-21/usr/sbin/munin07:05:160
82872680,2sleep08289-21wc08:05:200
26235996532,25cyclictest7179-21/usr/sbin/munin10:05:290
2623599637,25cyclictest29888-21/usr/sbin/munin11:35:220
2623599628,19cyclictest1448-21/usr/sbin/munin09:45:280
2623599619,16cyclictest6893-21/usr/sbin/munin08:00:160
26235996037,14cyclictest26205-21/usr/sbin/munin09:15:150
26235996010,17cyclictest11639-21/usr/sbin/munin12:30:180
2623599599,17cyclictest12919-21/usr/sbin/munin12:35:170
26235995933,16cyclictest29144-21/usr/sbin/munin11:30:320
2623599589,16cyclictest26338-21sh11:20:270
2623599588,16cyclictest2912-21/usr/sbin/munin07:45:200
2623599588,16cyclictest27516-21memory11:25:210
2623599588,15cyclictest25266-21snmpd11:40:280
2623599587,17cyclictest32630-21egrep09:40:120
2623599579,17cyclictest30326-21ntp_states09:30:260
2623599579,16cyclictest10353-21/usr/sbin/munin12:25:270
2623599579,15cyclictest14398-21/usr/sbin/munin10:35:200
2623599578,16cyclictest25266-21snmpd11:05:190
2623599578,15cyclictest4481-21ntp_states07:50:240
2623599578,15cyclictest30215-21/usr/sbin/munin07:25:130
2623599577,17cyclictest27474-21/usr/sbin/munin09:20:330
2623599577,16cyclictest17123-21/usr/sbin/munin08:40:130
26235995733,16cyclictest16288-21/usr/sbin/munin08:35:310
26235995731,17cyclictest10693-21df08:15:120
26235995719,11cyclictest0-21swapper11:15:150
26235995718,13cyclictest2882-21ntp_states11:55:280
26235995711,17cyclictest10356-21systemctl10:20:000
26235995711,15cyclictest31611-21ntp_states09:35:260
26235995710,17cyclictest28799-21awk07:20:020
263172563,5sleep00-21swapper07:10:040
2623599569,15cyclictest23440-21/usr/sbin/munin11:10:180
2623599569,15cyclictest19984-21sh08:50:260
2623599569,15cyclictest18327-21runrttasks10:50:150
2623599569,14cyclictest28850-21/usr/sbin/munin09:25:180
2623599569,14cyclictest2736-21/usr/sbin/munin09:50:200
2623599568,16cyclictest7758-21/usr/sbin/munin12:15:230
2623599568,16cyclictest28939-21/usr/sbin/munin07:20:300
2623599568,16cyclictest22286-21/usr/sbin/munin09:00:350
26235995635,14cyclictest25881-21runrttasks09:13:570
26235995630,16cyclictest21123-21/usr/sbin/munin11:00:230
26235995610,18cyclictest15844-21irqstats10:40:170
26235995610,15cyclictest5658-21/usr/sbin/munin10:00:290
2623599559,15cyclictest1885-21awk07:40:200
2623599558,15cyclictest11962-21/usr/sbin/munin08:20:180
26235995534,14cyclictest4165-21/usr/sbin/munin12:00:230
26235995529,16cyclictest317-21ntp_states11:45:290
26235995529,15cyclictest6654-21/usr/sbin/munin12:10:210
2623599549,15cyclictest21535-21timerwakeupswit08:55:310
26235995430,14cyclictest18466-21df08:45:170
26235995410,15cyclictest5474-21ntp_states12:05:250
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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