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2025-05-05 - 01:31

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 the 792 highest latencies:
System rack4slot6s.osadl.org (updated Sun May 04, 2025 12:44:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
729522430,2sleep07296-21missed_timers07:55:210
2974222410,3sleep029744-21wc07:15:290
2629522230,65sleep026299-21modprobe09:10:010
2362721500,3sleep023653-21cpu11:05:140
3208621480,2sleep032090-21wc09:30:300
1173721430,4chrt11740-21wc12:25:020
1225321410,3chrt12254-21missed_timers10:20:190
1574721320,2sleep015749-21modprobe10:35:000
457021200,2sleep04569-21cpu07:45:160
52532920,3sleep05254-21sshd09:53:330
314682880,2sleep031469-21if_eth011:35:160
30922860,3sleep03093-21latency_hist07:40:010
2713027618,32sleep027202-21users07:05:300
238772685,51sleep023909-21df09:00:130
120502684,52sleep012076-21ntp_states12:25:220
27809996019,15cyclictest300952chrt09:24:170
27809996017,13cyclictest22342-21seq11:00:140
2780999599,16cyclictest26459-21grep11:15:210
2780999598,18cyclictest14833-21/usr/sbin/munin08:25:200
27809995910,18cyclictest9663-21chrt12:15:270
27809995910,15cyclictest684-21awk09:35:210
309082583,5sleep00-21swapper09:25:310
2780999589,15cyclictest22543-21/usr/sbin/munin08:55:290
2780999588,17cyclictest13604-21df08:20:130
2780999588,17cyclictest108-21systemd-journal07:30:000
27809995835,14cyclictest7196-21/usr/sbin/munin10:00:280
27809995831,18cyclictest12294-21df08:15:170
27809995810,19cyclictest22200-21munin-run11:00:000
27809995810,15cyclictest16406-21ntp_states08:30:250
2780999579,17cyclictest7918-21/usr/sbin/munin12:10:160
2780999579,16cyclictest5803-21/usr/sbin/munin07:50:220
2780999579,16cyclictest3051-21/usr/sbin/munin09:45:120
2780999579,15cyclictest18707-21/usr/sbin/munin08:40:160
27809995734,15cyclictest4890-21sshd11:57:320
27809995733,15cyclictest21763-21/usr/sbin/munin08:50:280
27809995732,16cyclictest6696-21/usr/sbin/munin12:05:140
27809995732,16cyclictest11216-21/usr/sbin/munin08:10:220
27809995710,15cyclictest5935-21/usr/sbin/munin12:00:320
2780999569,17cyclictest4396-21munin-run07:45:000
2780999569,16cyclictest8392-21/usr/sbin/munin08:00:160
2780999569,15cyclictest25190-21ntp_states11:10:210
2780999568,17cyclictest14353-21/usr/sbin/munin12:35:310
2780999568,16cyclictest2762-21egrep11:50:120
2780999568,16cyclictest269-21runrttasks11:20:280
2780999568,16cyclictest16286-21grep10:35:280
2780999568,15cyclictest29943-21sh11:30:000
27809995634,15cyclictest26632-21/usr/sbin/munin09:10:210
27809995633,15cyclictest10002-21/usr/sbin/munin08:05:260
27809995632,15cyclictest8211-21/usr/sbin/munin10:05:120
27809995619,11cyclictest9639-21cat10:10:190
27809995615,13cyclictest17395-21/usr/sbin/munin08:35:230
2780999559,14cyclictest1923-21memory09:40:230
2780999559,14cyclictest10771-21df10:15:130
2780999558,17cyclictest13075-21/usr/sbin/munin12:30:280
2780999558,14cyclictest17189-21/usr/sbin/munin10:40:170
2780999557,16cyclictest1055-21grep07:30:280
2780999557,15cyclictest6013-21/usr/sbin/munin09:55:320
27809995533,14cyclictest18719-21/usr/sbin/munin10:45:200
27809995531,13cyclictest28052-21/usr/sbin/munin07:10:180
27809995529,16cyclictest20127-21/usr/sbin/munin08:45:180
27809995510,13cyclictest27766-21df09:15:130
2780999549,16cyclictest1592-21if_eth011:45:160
2780999549,15cyclictest494-21ntp_states11:40:250
27809995430,16cyclictest13406-21/usr/sbin/munin10:25:160
27809995430,15cyclictest20356-21/usr/sbin/munin10:50:310
27809995429,16cyclictest30121-21/usr/sbin/munin11:30:110
2780999539,17cyclictest31021-21threads07:20:300
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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